ItemArticle

Hierarchical BiFeO3/Cr2CTx MXene composite as a multifunctional catalyst for hydrogen evolution reaction and as an electrode material for energy storage devices

Title
Hierarchical BiFeO3/Cr2CTx MXene composite as a multifunctional catalyst for hydrogen evolution reaction and as an electrode material for energy storage devices
Creator
Reghunath B.S.; K R S.D.; Rajasekaran S.; Saravanakumar B.; William J.J.; Pinheiro D.
Description
A multifunctional hierarchical Bismuth ferrite/chromium carbide (BiFeO3/Cr2CTx) MXene has been employed as both electrode material for supercapacitors as well as an electrocatalyst for electrocatalytic water splitting. Here, a facile method is suggested for synthesizing Cr2CTx MXene from the chromium aluminum carbide (Cr2AlC) MAX Phase. X-ray diffraction studies, Scanning electron microscopy, and high-resolution transmission electron microscopy indicate that the aluminum atomic layers are removed from Cr2AlC MAX structure. The electrochemical test reveals that the BiFeO3/Cr2CTx MXene composite, which is produced with less Al2O3, performs well in the hydrogen evolution reaction (HER) with a low overpotential of 128 mV in 1 M potassium hydroxide. 53.3 mV dec?1, and 0.16 ? cm?2, respectively, are the values of the calculated Tafel slope and charge transfer resistance. In a dielectrode electrolysis system, BiFeO3/Cr2CTx MXene electrode needs only 1.81 V of cell potential to provide 10 mA cm?2 with long-term stability. The specific capacity of 671.2 C g?1 at a current density of 1 A g?1 is obtained for BiFeO3/Cr2CTx MXene electrode with 90% capacitance retention after 3000 cycles. The potential use of BiFeO3/Cr2CTx MXene towards HER and supercapacitor application is demonstrated by this study, which offers a gentle path for the fabrication of Cr2CTx MXene composites for energy storage and HER applications. 2023 Elsevier Ltd
Source
Electrochimica Acta, Vol-461
Date
2023-01-01
Publisher
Elsevier Ltd
Subject
BiFeO3 nanoparticles; Cr2CTx MXene; HER; Multifunctional catalyst; Supercapacitor
Coverage
Reghunath B.S., Department of Chemistry, CHRIST (Deemed to be University), Karnataka, Bengaluru, 560029, India; K R S.D., Department of Chemistry, CHRIST (Deemed to be University), Karnataka, Bengaluru, 560029, India, Department of Physics, Dr. Mahalingam College of Engineering and Technology, Tamilnadu, Pollachi, 642003, India; Rajasekaran S., Department of Chemistry, CHRIST (Deemed to be University), Karnataka, Bengaluru, 560029, India; Saravanakumar B., Department of Physics, Dr. Mahalingam College of Engineering and Technology, Tamilnadu, Pollachi, 642003, India; William J.J., Department of Physics, Dr. Mahalingam College of Engineering and Technology, Tamilnadu, Pollachi, 642003, India; Pinheiro D., Department of Chemistry, CHRIST (Deemed to be University), Karnataka, Bengaluru, 560029, India
Rights
Restricted Access
Relation
ISSN: 134686; CODEN: ELCAA
Format
Online
Language
English
Type
Article

Collection

Articles

Citation

Reghunath B.S.; K R S.D.; Rajasekaran S.; Saravanakumar B.; William J.J.; Pinheiro D., “Hierarchical BiFeO3/Cr2CTx MXene composite as a multifunctional catalyst for hydrogen evolution reaction and as an electrode material for energy storage devices,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 25, 2025, https://archives.christuniversity.in/items/show/14091.

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