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An Overview on Pt 3 X Electrocatalysts for Oxygen Reduction Reaction
Author(s) -
Sarkar Shreya,
Peter Sebastian C.
Publication year - 2021
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.202100166
Subject(s) - intermetallic , oxygen reduction reaction , dissolution , materials science , oxygen reduction , durability , metal , nanotechnology , metallurgy , chemical engineering , chemistry , engineering , composite material , electrochemistry , electrode , alloy
The activity of Pt towards oxygen reduction reaction (ORR) can be enhanced by alloying it with secondary metals. They can be grouped into three different classes: alloys, bimetallics and intermetallics. Although alloys and bimetallics exhibit enhanced performance, often they are limited by metal dissolution and resulted in poor durability. This invokes the need on the development of ordered intermetallics. In this minireview we comprehensively present the recent progress and developments of Pt 3 X alloys and intermetallics towards ORR. Additionally, major technical challenges and possible future research directions to overcome these challenges are discussed to facilitate further research in this area.