TY - JOUR
T1 - Locally Ordered Single-Atom Catalysts for Electrocatalysis
AU - Ren, Yujing
AU - Wang, Jinyong
AU - Zhang, Mingyue
AU - Wang, Yuqing
AU - Cao, Yuan
AU - Kim, Dong Ha
AU - Lin, Zhiqun
N1 - Publisher Copyright:
© 2023 Wiley-VCH GmbH.
PY - 2024/1/25
Y1 - 2024/1/25
N2 - Single-atom catalysts manifest nearly 100 % atom utilization efficiency, well-defined active sites, and high selectivity. However, their practical applications are hindered by a low atom loading density, uncontrollable location, and ambiguous interaction with the support, thereby posing challenges to maximizing their electrocatalytic performance. To address these limitations, the ability to arrange randomly dispersed single atoms into locally ordered single-atom catalysts (LO-SACs) substantially influences the electronic effect between reactive sites and the support, the synergistic interaction among neighboring single atoms, the bonding energy of intermediates with reactive sites and the complexity of the mechanism. As such, it dramatically promotes reaction kinetics, reduces the energy barrier of the reaction, improves the performance of the catalyst and simplifies the reaction mechanism. In this review, firstly, we introduce a variety of compelling characteristics of LO-SACs as electrocatalysts. Subsequently, the synthetic strategies, characterization methods and applications of LO-SACs in electrocatalysis are discussed. Finally, the future opportunities and challenges are elaborated to encourage further exploration in this rapidly evolving field.
AB - Single-atom catalysts manifest nearly 100 % atom utilization efficiency, well-defined active sites, and high selectivity. However, their practical applications are hindered by a low atom loading density, uncontrollable location, and ambiguous interaction with the support, thereby posing challenges to maximizing their electrocatalytic performance. To address these limitations, the ability to arrange randomly dispersed single atoms into locally ordered single-atom catalysts (LO-SACs) substantially influences the electronic effect between reactive sites and the support, the synergistic interaction among neighboring single atoms, the bonding energy of intermediates with reactive sites and the complexity of the mechanism. As such, it dramatically promotes reaction kinetics, reduces the energy barrier of the reaction, improves the performance of the catalyst and simplifies the reaction mechanism. In this review, firstly, we introduce a variety of compelling characteristics of LO-SACs as electrocatalysts. Subsequently, the synthetic strategies, characterization methods and applications of LO-SACs in electrocatalysis are discussed. Finally, the future opportunities and challenges are elaborated to encourage further exploration in this rapidly evolving field.
KW - Electrocatalysis
KW - Electronic Structure
KW - Ordered Arrangement
KW - Reaction Kinetics
KW - Single-Atom Catalysts
UR - http://www.scopus.com/inward/record.url?scp=85177199504&partnerID=8YFLogxK
U2 - 10.1002/anie.202315003
DO - 10.1002/anie.202315003
M3 - Short survey
C2 - 37932862
AN - SCOPUS:85177199504
SN - 1433-7851
VL - 63
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
IS - 5
M1 - e202315003
ER -