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α-Bi2Mo3O12: A Dual-Functional Material for Electrocatalytic Water Splitting and Supercapacitor Applications
P Sujita1, S Swetha1, Sethumathavan Vadivel1
1Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Chennai, Tamil Nadu, 603203, India.
Chemistry (Weinheim an Der Bergstrasse, Germany)
|August 30, 2024
Summary
This study shows α-Bi2Mo3O12 (BMO) is a dual-functional material. It excels as an electrocatalyst for water splitting (hydrogen and oxygen evolution) and in supercapacitor energy storage.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Developing efficient electrocatalysts is crucial for water splitting.
- Advanced materials are needed for high-performance supercapacitors.
Purpose of the Study:
- To investigate α-Bi2Mo3O12 (BMO) as a dual-functional material.
- To evaluate BMO's performance in water splitting and supercapacitors.
Main Methods:
- Solvothermal synthesis of BMO.
- Characterization of pre-calcination, post-calcination, and base-etched BMO.
- Electrochemical testing for water splitting (HER/OER) and supercapacitor performance.
Main Results:
- BMO (AC) showed lowest overpotential for HER; BMO (BC) for OER.
- Tafel slope and EIS confirmed superior kinetics and charge transfer.
- BMO (BE) achieved 398 F/g specific capacitance at 2.0 A/g.
- Excellent stability demonstrated over 12h chronoamperometry.
Conclusions:
- α-Bi2Mo3O12 exhibits significant electrocatalytic activity for water splitting.
- BMO demonstrates excellent performance for supercapacitor applications.
- BMO is a promising dual-functional material for energy storage and conversion.
