Advanced high-entropy perovskite oxide electrocatalyst for overall water splitting

Abstract

When it comes to electrode catalysis Ruthenium oxide (RuO2) and Iridium oxide (IrO2) show apparent performance However the high cost of these two catalysts is always a concern In this context perovskite oxide is receiving increasing attention as a potential replacement Perovskite exhibits extraordinary tunability of their physical and chemical properties through composition control and structural variation For use as a catalyst the redox behavior oxygen mobility and ionic conductivity can all be tailed to enhance the catalysis performance In this study we have synthesized a new class of high entropy LaMO3 where M consist of 4 to 5 different metals using a chemical route We demonstrate enhanced electrocatalyst performance as compared to common perovskite based on La The catalysts performance will be discussed in terms of the materials characteristics

Date of Award	2020
Original language	English
Supervisor	Jyh-Ming Ting (Supervisor)