Moderation of Income and Age on Customer Purchase Intention of Green Cosmetics in Bangalore
subject: Age; Consumer innovativeness; Cosmetics; Green; Health consciousness; Income; Intention; Purchase
description: Cracking the code of customer purchase behaviour is a challenge for market researchers as myriad factors interfere. Marketers are puzzled as competitors position a new product category in the market to create demand. Indian public perceived cosmetics composition as blend of healthy chemical extracts. Television commercials portrayed the presence of chemicals in cosmetics as a product performance booster. People attributed chemical presence to superior product performance. Saturated markets witnessed competitors aiming at increased sales with similar commercials. Under pressure to differentiate, the idea of organic cosmetics started. Companies invested heavily on product development, marketing and branding. Expected success was not achieved as buyers measured performance of cosmetics weighing the absence of chemicals. Scepticism on organic level of the products emerged as various brand commercials claimed their respective compositions a true organic product. Fewer studies explained purchase intention of green cosmetics without focus on health consciousness and consumer innovativeness. Product diffusions were strategized on the basis of consumer innovativeness. Health consciousness captured individuals weightage on health and well-being while purchasing a product. This paper explores relationship of health consciousness and consumer innovativeness with purchase intention development conducting exploratory factor analysis, regression analysis and interaction analysis on selected independent variables using dependent variables. The study found both consumer innovativeness and health consciousness leading to development of purchase intention of green cosmetics. Age and income moderated the relationship of consumer innovativeness and purchase intention. 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
creator: Krishna Kishore S.V.; Kiran P.; Banerjee J.; Vasudevan M.
source: Springer Proceedings in Business and Economics, pp. 187-213.
publisher: Springer Science and Business Media B.V.
date: 2022-01-01
rights: Restricted Access
relation: ISSN: 21987246; ISBN: 978-981167817-2
format: Online
language: English
type: Conference paper
coverage: Krishna Kishore S.V., School of Business and Management, Christ University, Bangalore, 560074, India; Kiran P., Westminster International University, Tashkent, Uzbekistan; Banerjee J., School of Business and Management, Christ University, Bangalore, 560074, India; Vasudevan M., School of Business and Management, Christ University, Bangalore, 560074, India

Modern Approaches for Automatic Question Paper Generator
subject: BLEU-4; Generative Adversarial Network; METEOR; Reinforcement Learning; ROUGE-L; SQuAD
description: The Automatic question paper generation system in the educational field can be useful in improving the quality of question paper, distribution and evaluation process. The system can be used for maintaining the quality of the questions with higher accuracy and less error rate compared with other existing systems at a lower cost. This article gives a comprehensive literature survey of modern approaches followed in automatic question generation (AQPG) systems and categorizing the approaches used for the question paper generation process. The techniques such as rule-based, encoder-decoder based, generative adversarial network (GAN)-based, reinforcement learning-based, and transformer-based approaches are discussed in the paper and evaluated using standard metrics. The article presents insights into the strengths and limitations of each approach through the systematic comparison and analysis of multiple studies using BLEU-4, ROUGE-L, and METEOR metrics on the SQuAD dataset. The research finding of the article gives a better opportunity to the researcher and educators to improve the knowledge about automated question paper generator systems as well as the challenges incorporated during the implementation process of question paper generation. This article also gives a depiction of AI enabled solution in automated question paper generator. 2025 IEEE.
creator: Ramar, Gobinath; Sivasakthivel, Ramkumar; Stephen, R.; Balan, R.V. Siva; Sahu, Mayank
source: 2025 International Conference on Computing Technologies and Data Communication, ICCTDC 2025;
publisher: Institute of Electrical and Electronics Engineers Inc.
date: 01-01-2025
rights: Restricted Access; Hardcopy may be available in the library
relation: ISBN: 979-833152798-3;
language: English
type: Conference paper
coverage: Ramar G., Christ University, Karnataka, Bangalore, India; Sivasakthivel R., Christ University, Karnataka, Bangalore, India; Stephen R., Christ University, Karnataka, Bangalore, India; Balan R.V.S., Christ University, Karnataka, Bangalore, India; Sahu M., Christ University, Karnataka, Bangalore, India

Modern privacy preserving strategies for IoT security
subject: Computer security; Computer security and privacy; Cryptography; Information systems; Network (computer science); Operations management
description: The proliferation of Internet of Things (IoT) devices has brought about a revolution in various industries and everyday life, enhancing connectivity and efficiency. Nevertheless, this rapid adoption has also given rise to notable security and privacy challenges, leading to the need for robust solutions to safeguard sensitive data. This study delves into contemporary strategies for preserving privacy specifically designed for IoT security, with a focus on the most recent trends and technologies. By the year 2024, it is projected that the global count of IoT devices will exceed 30 billion, exhibiting a compound annual growth rate (CAGR) of 26.7% from 2021 to 2024. This exponential growth has led to a significant increase in the amount of data produced and transmitted by IoT devices, thereby creating fresh opportunities as well as vulnerabilities. Privacy apprehensions are crucial, given that these devices frequently amass sensitive personal and organizational data. The research scrutinizes cutting-edge privacy-preserving techniques, such as federated learning, homomorphic encryption, and differential privacy, which present promising resolutions for safeguarding data while upholding functionality. Federated learning has garnered attention as a decentralized approach that permits data processing to occur locally on devices rather than being sent to central servers, thereby reducing data exposure. Homomorphic encryption facilitates data processing while encrypted, ensuring a high level of security without disclosing the underlying information. Conversely, differential privacy introduces statistical noise to data, guaranteeing that individual data points are not easily discernible, thus preserving user privacy. This section also accentuates the significance of adhering to regulations and the impact of frameworks like the General Data Protection Regulation (GDPR) and the California Consumer Privacy Act (CCPA) on shaping the advancement and acceptance of privacy-preserving …
creator: Dash, Adarsh Kumar; Sehgal, Chiranjeev; Dey, Hemangshu; Ramadani, Lauresha; Rajesh Kanna, R.
source: IoT Security: Fundamentals and Key Enabling Technologies;pp.125-136
publisher: Elsevier
date: 01-01-2025
rights: Restricted Access; Hardcopy may be available in the library
relation: ISBN: 978-044334125-0; 978-044334126-7;
language: English
type: Book chapter
coverage: Dash A.K., Department of Computer Science, CHRIST University, Karnataka, Bengaluru, India; Sehgal C., Department of Computer Science, CHRIST University, Karnataka, Bengaluru, India; Dey H., Department of Computer Science, CHRIST University, Karnataka, Bengaluru, India; Ramadani L., Computer Science Faculty, AAB College Prishtina, Kosovo, Prishtina; Rajesh Kanna R., Department of Computer Science, CHRIST University, Karnataka, Bengaluru, India

Modern Technology Usage for Education Field during COVID-19: Statistical Analysis
subject: COVID 19; Education; Moodle; Online Assessment Tools; Virtual Learning Platform; Web Conference Platform
description: The COVID-19 pandemic has had vast effects on the concept of education as a whole. During the pandemic, students had no access to physical teaching practices, which had been adapted worldwide as the principal way of education since the 1800's. Due to the restrictions imposed to garner safety from the spread of the virus, this methodology had to be modified based on the situation at hand. Alternatives through the usage of Virtual Learning Platforms (VLP), Online Tutoring Platforms (OTP), Web Conferencing Platforms (WCP) and multiple assessment tools like plagiarism checker, poll sites, quiz platforms, online proctored examinations (OPE) started gaining popularity among all institutes to cope with the limitations levied. The technologies molded a path for student-teacher interaction, performance assessments, document sharing and online tutoring. This research highlights the lack of online tutoring equipment, educators' limited expertise with online learning, the knowledge gap, a inimical atmosphere for independent study, equity, and academic success in postsecondary learning. The goal of this review is to present an overview of available technologies for online teaching that can be used to improve the quality of education during COVID-19. 2022 IEEE.
creator: Joson N.M.; Jayakumar A.; Jayapandian N.
source: Proceedings of the 2022 3rd International Conference on Communication, Computing and Industry 4.0, C2I4 2022
publisher: Institute of Electrical and Electronics Engineers Inc.
date: 2022-01-01
rights: Restricted Access
relation: ISBN: 978-166547497-9
format: Online
language: English
type: Conference paper
coverage: Joson N.M., School of Engineering and Technology, CHRIST (Deemed to Be University), Bangalore, India; Jayakumar A., School of Engineering and Technology, CHRIST (Deemed to Be University), Bangalore, India; Jayapandian N., School of Engineering and Technology, CHRIST (Deemed to Be University), Bangalore, India

Modernization of Rural Electric Infrastructure
subject: grid technology; renewable energy; rural electricity infrastructure; smart grid policies; solar energy; sustainable energy; wind energy
description: In the recent digital era, the energy sector in India is truly challenging. But some way or another digital technology has the potential to change the scenario of energy supply in industry. One of the important developments in this decade is the application of Artificial Intelligence (AI). This technology will help us to control smart software and optimize our decision-making and operations. We cannot ignore the need of energy to become sustainable after the introduction of the Internet of Things (IoT). Smart grid technology in IoT is used to detect even minute changes in electricity supply and demand. These two technologies (AI and IOT) jointly provide us a magical tool to improve operational performance in the energy industry. In rural areas, there is a lack of electricity infrastructure supply and demand technologies. A large portion electricity supply is shifting from manufacturing industry to rural areas. They are using grid technology to transform electricity and the load is highly variable. From the demand side, lack of infrastructure and industrial equipment affect consumer devices. An increasing need for electricity in all aspects presents a significant challenge to utilization and cost efficiency. An important issue for the delivery of electricity to rural areas is the infrastructure and administrative policies and regulations. Power plants need to be constructed in rural areas to supply the electricity. This is the modernization of a rural electricity infrastructure. In modernization techniques, smart grid technology can be used to meet low carbon emission and cost-efficiency. It will be interconnected with the traditional grid architecture of electricity energy. Based on recent research, the smart grid should be robust and agile and it might dynamically optimize the grid operations, energy-efficient resources, and so on. Without affecting the nature of village environments, an alternate technology, such as the consumption of solar energy, can also be mut…
creator: Gunavathi R.; Karthikeyan G.
source: Power Systems, pp. 229-252.
publisher: Springer Science and Business Media Deutschland GmbH
date: 2023-01-01
rights: Restricted Access
relation: ISSN: 16121287
format: Online
language: English
type: Book chapter
coverage: Gunavathi R., CHRIST University, Lavasa, India; Karthikeyan G., Sree Saraswathi Thyagraja College, Pollachi, Coimbatore, India

Modernized energy management system: A review
description: The usage of renewable energy system (RES) and its management is vital for reliable electrical energy delivery without pollution. In the scenario of increase in distributed generations (DGs), to utilize the generated electricity from RES without any wastage, to avoid the consumption of electricity during peak hours, to store and retrieve energy in an efficient way from the battery, there is a need for overall energy management system (EMS). As the prices for electricity and pollution are reduced, the review of available methodologies is discussed in this paper. The EMS takes decision based on the predicted load demand. So, the different prediction methodologies and their benefits are also discussed here. Though the electric vehicles (EVs) are considered as load in power system, the storage facility of the EVs are also used as power backup facilities through vehicle to grid (V2G) technology. This paper provides a review on the complete management of RES, EVs, batteries and load. Published under licence by IOP Publishing Ltd.
creator: Reddy D.S.; Jeyaprabha S.B.
source: Journal of Physics: Conference Series, Vol-1706, No. 1
publisher: IOP Publishing Ltd
date: 2020-01-01
rights: All Open Access; Gold Open Access
relation: ISSN: 17426588
format: Online
language: English
type: Conference paper
coverage: Reddy D.S., Department of Electrical and Electronics Engineering, CHRIST (Deemed to Be University), Bangalore, India, Department of Electrical and Electronics Engineering, Sree Vidyanikethan Engineering College, Tirupati, India; Jeyaprabha S.B., Department of Electrical and Electronics Engineering, CHRIST (Deemed to Be University), Bangalore, India

Modernizing Electrical Grids with TCR-Based Flexible AC Transmission Systems
subject: Current; Flexible AC Transmission Systems (FACTS); Thyristor-Controlled Reactors (TCRs)
description: Modernizing electrical grids is imperative to meet the growing demand for reliable, efficient, and sustainable energy. Thyristor-Controlled Reactors (TCRs) are integral components of modern Flexible AC Transmission Systems (FACTS). These systems offer a robust solution for enhancing grid stability, improving power quality, and optimizing transmission efficiency, ensuring that electric grids can support future energy needs. TCR-based FACTS are a collection of technologies designed to enhance the controllability, stability, and power transfer capability of AC electrical grid systems. In this paper, we will discuss the role of TCRs in modernizing AC transmission systems and their role in addressing grid challenges and improving performance, highlighting their critical role in future grid infrastructure. To discuss the future prospects and developments in TCR technology, with ongoing advancements and research efforts paving the way for more efficient, reliable, and flexible grid management solutions. The Authors, published by EDP Sciences, 2024.
creator: Alabdeli H.; Obaid M.K.; Rekha M.; Sivasubramanian S.; Ashok J.; Tharmar S.
source: E3S Web of Conferences, Vol-564
publisher: EDP Sciences
date: 2024-01-01
rights: All Open Access; Gold Open Access
relation: ISSN: 25550403
format: Online
language: English
type: Conference paper
coverage: Alabdeli H., Department of Computers Techniques Engineering, College of Technical Engineering, The Islamic University, Najaf, Iraq, Department of Computers Techniques Engineering, College of Technical Engineering, The Islamic University of Al Diwaniyah, Al Diwaniyah, Iraq, Department of Computers Techniques Engineering, College of Technical Engineering, The Islamic University of Babylon, Babylon, Iraq; Obaid M.K., College of Arts, Ahl Al Bayt University, karbala, Iraq; Rekha M., Department of EEE, GRIET, Bachupally, Telangana, Hyderabad, India; Sivasubramanian S., New Prince Shri Bhavani College of Engineering and Technology, Chennai, India; Ashok J., School of Business and Management, CHRIST (Deemed to Be University), Karnataka, Bengaluru, India; Tharmar S., Mohamed Sathak Engineering College, Tamil Nadu, Kilakari, India

Modication of Newtonian Gravity: Implications for hot gas in clusters and galactic angular momentum
subject: galactic angular momentum; hot gas in clusters; Modication of Newtonian Gravity
description: In view of the negative results from various dark matter detection experiments, we had earlier proposed an alternate theoretical framework through modication of Newtonian gravity (MONG). Here, the Poison's equation is modied by introducing an additional gravitational self-energy density term along with the usual dark energy density term. In this work, we extend this model to account for the presence of low-density gas at high temperatures 08Kin the intra cluster medium (ICM) by estimating the velocities to which particles will be subjected by the modied gravitational force. Considering that the ICM is under the inuence of the cluster's gravity, particle velocities of the ions in the ICM must be balanced by the cluster's gravitational force. The particle velocities obtained for various clusters from their temperature proles match the velocity produced by the MONG gravitational force. Thus, the increase in the gravitational potential at the outskirts of galaxies balances the thermal pressure of the ICM, maintaining hydrostatic equilibrium without invoking DM. The eect of MONG on the angular momentum of galaxies is also studied by obtaining a scaling relation between the angular momentum and the mass of a galaxy. MONG predicts a higher dependence on mass in comparison to the CDM model. This increased dependence of angular momentum on mass compensates for the halo contribution to the angular momentum. The angular momentum from MONG for galaxies from the spritzer photometry and accurate rotation curves (SPARC) database is compared to the halo angular momentum by a chi-square t technique. The correlation coecient is found to be unity, showing a replicable result. 2025 World Scientific Publishing Company.
creator: Rebecca, Louise; Sebastian, Dominic; Sivaram, C.; Arun, Kenath
source: Modern Physics Letters A;Volume;40;Issue;15-16;Article No.;2550045;
publisher: World Scientific
date: 01-01-2025
rights: All Open Access; Green Open Access
relation: ISSN: 2177323; CODEN: MPLAE
format: online
language: English
type: Article
coverage: Rebecca L., Department of Physics and Electronics, Christ University, Karnataka, Bangalore, 560029, India; Sebastian D., Department of Physics and Electronics, Christ University, Karnataka, Bangalore, 560029, India; Sivaram C., Indian Institute of Astrophysics, Karnataka, Bangalore, 560034, India; Arun K., Department of Physics and Electronics, Christ University, Karnataka, Bangalore, 560029, India

Modification of carbon based electrodes as robust scaffolds for electrochemical sensing of vitamins and hormones
subject: Chemistry
creator: Anila Rose Cherian - 1940077
publisher: CHRIST (Deemed to be University)
date: 2023-10-26
language: English
type: PhD

Modification of Carbon Based Electrodes as Robust Scaffolds for Electrochemical Sensing of Vitamins and Hormones
subject: Chemistry
description: Electrochemical sensors are for vitamins and hormones are constructed on employing various newlinemodifications (molecular imprinting technology, coating of 2D sheet like materials and also modifying using supramolecular complexing material) on the transducer host, carbon fiber paper electrode (CFP). From our observation, the electrochemical oxidation/reduction current newlineof the analytes studied, intensified significantly on the surface modifications employed over the CFP substrate. Surface morphology was characterized using Field Emission Scanning Electron Microscopy (FESEM), Electron Diffraction X-ray (EDX), X-Ray Photoelectron spectroscopy (XPS), Optical Profilometry and Fourier Transform Infrared Spectroscopy (FTIR). Nyquist plots revealed the least charge transfer resistance at the finally modified working electrodes compared to other control electrodes. Optimization of experimental conditions such as effect of pH, investigating the reaction mechanism via effect of scan rate, number of cycles for the electrodeposition of the film in order to achieve maximum current response and potential window were studied in detail by using cyclic voltammetry (CV). Quantification of the analytes was performed using Differential Pulse Voltammetry (DPV). newlineAnalytical corroboration for real samples were carried out using the finally modified newlineelectrode. Therefore, all the works carried out have established simplicity and selectivity in the principle of the novel approach in the development of an ultrasensitive voltammetric sensor for vitamins and hormones studied.
creator: Cherian, Anila Rose
source: Author's Submission
publisher: Christ(Deemed to be University)
date: 2023-01-01
contributor: Varghese, Anitha.
rights: Open Access
relation: 61000250
format: PDF
language: English
type: PhD

Modified carbon based composites and their electrochemical studies /
subject: Chemistry
creator: Anjana Baby - 1981404
publisher: CHRIST (Deemed to be University)
date: 2023-07-08
language: English
type: PhD

Modified carbon based electrodes for electrochemical sensing of biomolecules
subject: Chemistry
description: Now-a-days a large variety of biological analytes are detected by highly sensitive newlineelectrochemical sensors which are inexpensive and simple as compared to conventional methods such as UV-vis absorption spectroscopy, spectrofluorometry, HPLC and gas chromatography. Electrochemical analysis is exceptional owing to its economical, low energy consuming and unique approach in the method design, and high sensitivity for the analyte determination. Carbon based electrochemical sensors are commonly used because of their low cost, good electron newlinetransfer kinetics, good chemical stability, and biocompatibility. Recently electrochemical properties of pencil graphite electrodes (PGEs) have been explored in the analysis of various organic compounds. High electrochemical reactivity, easy modification, commercial accessibility, fine rigidity, disposability and low-cost of PGE make it ideal to be used as an effective working electrode. The thesis presented explains different modified PGEs have been employed in the electrocatalytic determination biomolecules such as cholesterol, cortisol, Vitamin B6 and morin. newlineThe modified electrodes are effectively used for the ultra-level sensing of these biomolecules in real samples. The electroactive surface area and the conduvtivity of bare PGE is enhanced newlinedifferent electrode modifiers such as and#946;-CD, graphene, conducting polymer, metal oxides and metal nanoparticles. The modified electrodes are found to exhibit good electrocatalytic behavior towards the target biomolecules. Cyclic voltammetric (CV) studies and electrochemical impedance spectroscopic (EIS) technique were used to investigate the electrochemical properties of the modified sensing platform. The newlinemorphology and step wise fabrication process of the modified electrodes were characterized byvii Ramana spectroscopy, X-ray photoelectron spectroscopy (XPS),scanning electron microscopy (SEM), Transmission electron microscopy (TEM), X-ray diffraction (X…
creator: Rison, Sherin.
source: Author's Submission
publisher: Christ(Deemed to be University)
date: 2022-01-01
contributor: Varghese, Anitha.
rights: Open Access
relation: 61000312
format: PDF
language: English
type: PhD

Modified Carbon Based Electrodes for Electrochemical Sensing of Biomolecules
subject: Chemistry
description: Now-a-days a large variety of biological analytes are detected by highly sensitive newlineelectrochemical sensors which are inexpensive and simple as compared to conventional methods such as UV-vis absorption spectroscopy, spectrofluorometry, HPLC and gas chromatography. Electrochemical analysis is exceptional owing to its economical, low energy consuming and unique approach in the method design, and high sensitivity for the analyte determination. Carbon based electrochemical sensors are commonly used because of their low cost, good electron newlinetransfer kinetics, good chemical stability, and biocompatibility. Recently electrochemical properties of pencil graphite electrodes (PGEs) have been explored in the analysis of various organic compounds. High electrochemical reactivity, easy modification, commercial accessibility, fine rigidity, disposability and low-cost of PGE make it ideal to be used as an effective working electrode. The thesis presented explains different modified PGEs have been employed in the electrocatalytic determination biomolecules such as cholesterol, cortisol, Vitamin B6 and morin. newlineThe modified electrodes are effectively used for the ultra-level sensing of these biomolecules in real samples. The electroactive surface area and the conduvtivity of bare PGE is enhanced newlinedifferent electrode modifiers such as and#946;-CD, graphene, conducting polymer, metal oxides and metal nanoparticles. The modified electrodes are found to exhibit good electrocatalytic behavior towards the target biomolecules. Cyclic voltammetric (CV) studies and electrochemical impedance spectroscopic (EIS) technique were used to investigate the electrochemical properties of the modified sensing platform. The newlinemorphology and step wise fabrication process of the modified electrodes were characterized byvii Ramana spectroscopy, X-ray photoelectron spectroscopy (XPS),scanning electron microscopy (SEM), Transmission electron microscopy (TEM), X-ray diffraction (X…
creator: Rison, Sherin.
source: Author's Submission
publisher: Christ(Deemed to be University)
date: 2022-01-01
contributor: Varghese, Anitha
rights: Open Access
relation: 61000312
format: PDF
language: English
type: PhD

Modified carbon based electrodes for electrochemical sensing of biomolecules /
subject: Chemistry
creator: Rison, Sherin. - 1840079
publisher: CHRIST (Deemed to be University)
date: 2022-12-23
language: English
type: PhD

Modified carbon substrates for electrocatalytic oxidation of selected heterocyclic carbinols
subject: Chemistry
description: Electrochemically modified carbon electrodes are used as a substrate for electrocatalytic oxidation of different heterocyclic carbinols. Carbon fiber paper (CFP) is newlineused as the electrode substrate on which various modifications are employed. Modified newlineelectrodes were prepared by using different surface modification strategies such as newlineelectrodeposition of Pd nanoparticles or Pd-Pt bimetallic nanoparticles on a conducting newlinepolymer, polyaniline which is electropolymerized on to CFP. Biomass derived porous carbon nanoparticle coated CFP was also used for electrodeposition of Pd nanoparticles or MnO2-Pi nanoparticles. These modified electrodes were physicochemically characterized by X-ray diffraction (XRD), Field emission scanning electron microscopy (FESEM) with energy-dispersive X-ray spectroscopy (EDS), Transmission electron microscopy (TEM), Raman spectroscopy, Fourier transform infrared (FTIR) spectroscopy, Optical profilometry and X-ray photoelectron spectroscopy (XPS) and electrochemically characterized using Cyclic voltammetry (CV) and Electrochemical impedance spectroscopy (EIS). This modification methods have attracted a lot of attention due to their exceptional stability, high electronic conductivity, mechanical strength, and good adhesive property to the substrate and to the modified electrode. The modified electrodes show excellent electrochemical and newlinephysicochemical properties which are demonstrated using various analytical techniques. The organocatalytic reagent, TEMPO is used as a mediator throughout the studies which helps to carry out the oxidation of organic molecules in an aqueous acidic medium. The developed electrodes have been successfully applied for the oxidation of different heterocyclic alcohol such as 4-pyridinemethanol, 2-thiophene methanol, and 2-Furfuryl alcohol to corresponding 4-pyridinemethanal, 2-thiophene methanol and 2-Furfural.
creator: Mathew, Agnus T.
source: Author's Submission
publisher: Christ(Deemed to be University)
date: 2022-01-01
contributor: Varghese, Anitha.
rights: Open Access
relation: 61000177
format: PDF
language: English
type: PhD

Modified carbon substrates for electrocatalytic oxidation of selected heterocyclic carbinols /
subject: Chemistry
creator: Mathew, Agnus T. - 1881402
publisher: CHRIST (Deemed to be University)
language: English
type: PhD

Modified Carbon-Based Composites and Their Electrochemical Studies
subject: Chemistry
description: Energy storage has emerged as the world's most important issue, attracting the focus of researchers and commercial developers due to the economy's rapid growth and the rise in the usage of portable electronics and electronic vehicles. These devices make it possible to efficiently capture and store the excess energy produced during times of high generation, so that it can be used when there is little or no generation. Devices for storing renewable energy contribute to grid stability and lessen the reliance on fossil fuel-based power plants. Moreover, they contribute to the decarbonization of the energy industry, mitigating climate change, and promoting a sustainable future. This thesis explores the potential of modified carbon-based composites as advanced materials for energy storage applications particularly supercapacitors and solar thermal fuels. The research focuses on the careful design and synthesis of ternary composites, incorporating carbonaceous materials such as carbon nanotubes, graphene oxide, and graphitic carbon nitrides, metal sulphides, nitrogen rich moieties, and conductive additives like polyaniline and polypyrrole. A wide variety of methodologies were used to describe the structural and morphological characteristics of the composite materials. Thermogravimetric analysis, Fourier transform infrared spectroscopy, X-ray diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy, scanning electron microscopy, and other techniques were used. These methods gave important information about the composite materials' chemical structure, type of bonding and arrangements, surface morphology, and thermal stability. Electrochemical techniques, such as cyclic voltammetry, galvanostatic charge-discharge, and electrochemical impedance spectroscopy, have been extensively employed to investigate the performance and behaviour of supercapacitor electrodes and devices. The results demonstrate significant improvements in electrochemical performance, including enha…
creator: Anjana, Baby
source: Author's Submission
publisher: Christ(Deemed to be University)
date: 2023-01-01
contributor: P B, Sreeja
rights: Open Access
relation: 61000292
format: PDF
language: English
type: PhD

Modified Ceria as a Substitute for Sulfuric Acid in the Liquid Phase Nitration of Toluene
subject: Chemistry
description: Reaction, Kinetics, Mechanisms and Catalysis, ISSN NO. 1878-5204
publisher: Reaction, Kinetics, Mechanisms and Catalysis
date: 2012
language: English

Modified ceria as a substitute for sulfuric acid in the liquid phase nitration of toluene
subject: Ceria; Nitration of toluene; Sulfated ceria; Sulfated ceria zirconia
description: Ceria, sulfated ceria, ceria-zirconia and sulfated ceria-zirconia catalysts were prepared via the co-precipitation method and calcined at 823 K. The catalysts were characterized by XRD, BET surface area, FTIR, TGA and EDAX. The acidity of the catalysts was studied by pyridine adsorbed FTIR. All the peaks in XRD correspond to the cubic fluorite structure of ceria. The crystallite size of the catalysts was found to be 4-8 nm. Incorporation of zirconia stabilizes the surface sulfate species and thus increases the sulfate content. Sulfation decreases the surface area, but increases the acidity, leading to enhanced catalytic activity. All the catalysts were found to be stable up to 923 K. Catalytic activities were tested towards the liquid phase nitration of toluene. A maximum conversion of about 34 % is achievable for the nitration of toluene to dinitrotoluene. Solid acids effectively play the role of sulfuric acid in the reaction, assisting the formation of nitronium species. 2012 Akadiai Kiad Budapest, Hungary.
creator: Sunaja Devi K.R.; Jayashree S.
source: Reaction Kinetics, Mechanisms and Catalysis, Vol-108, No. 1, pp. 183-192.
date: 2013-01-01
rights: Restricted Access
relation: ISSN: 18785204
format: Online
language: English
type: Article
coverage: Sunaja Devi K.R., Department of Chemistry, Christ University, Bangalore 560029, India; Jayashree S., Department of Chemistry, Christ University, Bangalore 560029, India

Modified eco-friendly and biodegradable chitosan-based sustainable semiconducting thin films
subject: band-gap studies; chitosan; deep eutectic solvent; optoelectronic devices; semiconducting polymer
description: Semiconducting materials are pivotal in various fields, such as solar cells, LEDs, photovoltaic cells, etc. A nature-friendly chitosan is a good film-forming, water-soluble polymer that is modified to a small band-gap polymer for various optoelectronic applications. Choline chloride:ethylene glycol:glycerin (1:1:1) deep eutectic solvent (DES)-modified activated carbon is incorporated into the chitosan matric and this composite is fabricated into thin films via spin coating methodology. The obtained films are subjected to multiple studies such as scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), impedance spectroscopy, and UVvis spectroscopy to perceive the thin-films microstructure, morphology, conductance, band gap, and optical nature. The integration of DES-modified activated carbon has significantly improved the charge transfer capacity of chitosan by reducing the band gap from 4.0 to 2.0 eV. These notable characteristics exhibited by the modified films can be key to sustainable semiconducting materials and have the potential to transform several optoelectronic applications. 2024 The Author(s). Polymers for Advanced Technologies published by John Wiley & Sons Ltd.
creator: Lokesh Kumar S.; Servesh A.; Sunitha V.R.; Prasad J.R.; Tabassum S.; Ramaraj S.G.; Kumar N.; Govindaraju S.
source: Polymers for Advanced Technologies, Vol-35, No. 6
publisher: John Wiley and Sons Ltd
date: 2024-01-01
rights: All Open Access; Hybrid Gold Open Access
relation: ISSN: 10427147
format: Online
language: English
type: Article
coverage: Lokesh Kumar S., Department of Chemistry, Christ University, Bengaluru, India; Servesh A., Department of Chemistry, Christ University, Bengaluru, India; Sunitha V.R., Department of Sciences and Humanities, Christ University, Bengaluru, India; Prasad J.R., Department of Civil Engineering, College of Engineering and Technology, SRM Institute of science and Technology, Tamil Nadu, India; Tabassum S., Department of Chemistry, Surana College, Bengaluru, India; Ramaraj S.G., Department of Materials Physics, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (SIMTS), Tamil Nadu, Chennai, India, Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, Tokyo, Japan; Kumar N., Department of Electronics & Communication Engineering, Graphic Era Deemed to be University, Uttarakhand, Dehradun, India; Govindaraju S., Department of Sciences and Humanities, Christ University, Bengaluru, India