Enhanced supercapacitors and LPG sensing performance of reduced graphene oxide/cobalt chromate pigments for energy storage applications
- Title
- Enhanced supercapacitors and LPG sensing performance of reduced graphene oxide/cobalt chromate pigments for energy storage applications
- Creator
- Angadi V J.; Pasha A.; Molahalli V.; K Pattar V.; Kumar A.; Hegde G.; Prakash C.; Pandit B.; Sehgal S.; Ubaidullah M.
- Description
- It is imperative that an initial inquiry be conducted as soon as possible since the production of monolayer of carbon atoms (rGO) composites is the root cause of their poor performance in supercapacitor and LPG sensors. Here, an effort is undertaken to construct a cobalt chromate pigments-reduced graphene oxide (CoCr2O4/rGO) by solution combustion method for the supercapacitor and LPG sensor. The proposed method is efficient and easy in terms of its application to the production of CoCr2O4/rGO polycrystalline composite on a wide scale. Within the scope of this work is an investigation into the improved supercapacitor and LPG sensing behaviour of CoCr2O4/rGO polycrystalline composite. We have implemented a simple method that has been identified for mass-producing reduced graphene oxide. The Solution combustion technique was used, and it was successful in achieving this goal for the very first time. X-ray diffraction technique is used analyse crystallinity, phase, and structural investigation. The nature of gas sensing behaviour with a step function of LPG gas at 500 ppb was studied at room temperature for rGO, The CoCr2O4 pigments and 0.5CoCr2O4+0.5rGo polycrystalline composite samples. The gas response is maximum for 0.5CoCr2O4+0.5rGo polycrystalline composite in the order of 97% in compare with the reduced graphene oxide sample which shows the lowest sensitivity in the order of 26% on exposure of liquified petroleum gas (LPG). The recorded response and recovery times of 0.5CoCr2O4+0.5rGo polycrystalline composite is found to be 40 s and 52 s respectively in comparison to the rGO sample about 58 and 74 s respectively. By adding rGo to the material, the cyclic voltammetry (CV) findings demonstrate improved current density and area of CV loop with increased scan rate. In three-electrode reveals the system, a CoCr2O4-rGo material exhibits a specific capacitance of 226 F/g. Thus, the results reveals that rGo is contributing significantly to the enhancement of a supercapacitor's performance of CoCr2O4. 2023 Elsevier Ltd and Techna Group S.r.l.
- Source
- Ceramics International, Vol-49, No. 22, pp. 35333-35339.
- Date
- 2023-01-01
- Publisher
- Elsevier Ltd
- Subject
- CoCr2O4; Composite; rGo; Supercapacitors
- Coverage
- Angadi V J., Department of Physics, P. C. Jabin Science College, Karnataka, Hubballi, 580031, India; Pasha A., Department of Physics, Ghousia College of Engineering, Karnataka, Ramanagara, India; Molahalli V., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 560029, India; K Pattar V., Education Technology Unit, JNCASR, Jakkur, Karnataka, Bengaluru, 560064, India; Kumar A., Department of Chemistry, GLA University, Mathura, 281406, India; Hegde G., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 560029, India, Centre for Advanced Research and Development (CARD), CHRIST (Deemed to be University), Bangalore, 560029, India; Prakash C., School of Mechanical Engineering, Lovely Professional University, Punjab, Phagwara, 144411, India; Pandit B., Department of Materials Science and Engineering and Chemical Engineering, Universidad Carlos III de Madrid, Avenida de la Universidad 30, Legan, Madrid, 28911, Spain; Sehgal S., Division of Research Innovation, Uttaranchal University, Dehradun, India; Ubaidullah M., Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
- Rights
- Restricted Access
- Relation
- ISSN: 2728842; CODEN: CINND
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Angadi V J.; Pasha A.; Molahalli V.; K Pattar V.; Kumar A.; Hegde G.; Prakash C.; Pandit B.; Sehgal S.; Ubaidullah M., “Enhanced supercapacitors and LPG sensing performance of reduced graphene oxide/cobalt chromate pigments for energy storage applications,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 28, 2025, https://archives.christuniversity.in/items/show/14007.