Open AccessSpin Effect on Oxygen Electrocatalysis
Author(s) -
Li Jisi,
Ma Jingjing,
Ma Ziang,
Zhao Erling,
Du Kun,
Guo Jiaxin,
Ling Tao
Publication year - 2021
Publication title -
advanced energy and sustainability research
Language(s) - English
Resource type - Journals
ISSN - 2699-9412
DOI - 10.1002/aesr.202100034
Subject(s) - electrocatalyst , oxygen evolution , oxygen , chemistry , materials science , electrochemistry , nanotechnology , electrode , organic chemistry
Oxygen involved reactions, including oxygen reduction (ORR) and oxygen evolution reactions (OERs), play a key role in electrochemical energy devices, such as fuel cells and metal–air batteries. Recent theoretical calculations and experimental investigations reveal that the energy loss in ORR/OER is closely related to the triplet O 2 generation/conversion step. However, the spin‐related phenomena have long been neglected in understanding of the ORR/OER mechanism. This review highlights recent advances in understanding and application of the spin‐related effect in oxygen electrocatalysis. It is demonstrated that the exchange interaction in magnetic catalysts can build a spin‐selective channel to filter the electron spins with appropriate orientation in the O 2 generation/conversion step during ORR/OER. It is believed that the introduction of spin effect can establish a more comprehensive understanding of oxygen electrocatalysis and assist designing more reactive oxygen electrocatalysts.