TY - JOUR
T1 - Metal Oxide-Supported Metal Catalysts for Electrocatalytic Oxygen Reduction Reaction
T2 - Characterization Methods, Modulation Strategies, and Recent Progress
AU - Wang, Siyuan
AU - Wang, Miao
AU - Zhang, Yunze
AU - Wang, Hongsheng
AU - Fei, Hao
AU - Liu, Ruoqi
AU - Kong, Hui
AU - Gao, Ruijie
AU - Zhao, Siyuan
AU - Liu, Tong
AU - Wang, Yuhao
AU - Ni, Meng
AU - Ciucci, Francesco
AU - Wang, Jian
N1 - Funding Information:
The authors acknowledge the support from the City University of Hong Kong through project 9610537 and the Department of Science and Technology of Guangdong Province through project 2022A1515010212, and Guangdong Provincial Key Laboratory of Materials and Technology for Energy Conversion, Guangdong Technion ‐Israel Institute of Technology through project MATEC2022KF008. F.C. thanks the Green Tech Fund (GTF21EG07‐RG207) and the Project of Hetao Shenzhen‐Hong Kong Science and Technology Innovation Cooperation Zone (HZQB‐KCZYB‐2020083) for financial support.
Publisher Copyright:
© 2023 Wiley-VCH GmbH.
PY - 2023
Y1 - 2023
N2 - The sluggish kinetics of the oxygen reduction reaction (ORR) with complex multielectron transfer steps significantly limits the large-scale application of electrochemical energy devices, including metal–air batteries and fuel cells. Recent years witnessed the development of metal oxide-supported metal catalysts (MOSMCs), covering single atoms, clusters, and nanoparticles. As alternatives to conventional carbon-dispersed metal catalysts, MOSMCs are gaining increasing interest due to their unique electronic configuration and potentially high corrosion resistance. By engineering the metal oxide substrate, supported metal, and their interactions, MOSMCs can be facilely modulated. Significant progress has been made in advancing MOSMCs for ORR, and their further development warrants advanced characterization methods to better understand MOSMCs and precise modulation strategies to boost their functionalities. In this regard, a comprehensive review of MOSMCs for ORR is still lacking despite this fast-developing field. To eliminate this gap, advanced characterization methods are introduced for clarifying MOSMCs experimentally and theoretically, discuss critical methods of boosting their intrinsic activities and number of active sites, and systematically overview the status of MOSMCs based on different metal oxide substrates for ORR. By conveying methods, research status, critical challenges, and perspectives, this review will rationally promote the design of MOSMCs for electrochemical energy devices.
AB - The sluggish kinetics of the oxygen reduction reaction (ORR) with complex multielectron transfer steps significantly limits the large-scale application of electrochemical energy devices, including metal–air batteries and fuel cells. Recent years witnessed the development of metal oxide-supported metal catalysts (MOSMCs), covering single atoms, clusters, and nanoparticles. As alternatives to conventional carbon-dispersed metal catalysts, MOSMCs are gaining increasing interest due to their unique electronic configuration and potentially high corrosion resistance. By engineering the metal oxide substrate, supported metal, and their interactions, MOSMCs can be facilely modulated. Significant progress has been made in advancing MOSMCs for ORR, and their further development warrants advanced characterization methods to better understand MOSMCs and precise modulation strategies to boost their functionalities. In this regard, a comprehensive review of MOSMCs for ORR is still lacking despite this fast-developing field. To eliminate this gap, advanced characterization methods are introduced for clarifying MOSMCs experimentally and theoretically, discuss critical methods of boosting their intrinsic activities and number of active sites, and systematically overview the status of MOSMCs based on different metal oxide substrates for ORR. By conveying methods, research status, critical challenges, and perspectives, this review will rationally promote the design of MOSMCs for electrochemical energy devices.
KW - characterizations
KW - electronic interactions
KW - metal oxide-supported metal catalysts
KW - modulation strategies
KW - oxygen reduction reaction
UR - http://www.scopus.com/inward/record.url?scp=85151754950&partnerID=8YFLogxK
U2 - 10.1002/smtd.202201714
DO - 10.1002/smtd.202201714
M3 - Review article
AN - SCOPUS:85151754950
SN - 2366-9608
JO - Small Methods
JF - Small Methods
ER -