Metal-metal interactions in correlated single-atom catalysts

作者：Jieqiong Shan, Chao Ye, Yunling Jiang, Mietek Jaroniec, Yao Zheng, Shi‐Zhang Qiao · 发表于：Science Advances · 年份：2022 · DOI：10.1126/sciadv.abo0762 · 被引用次数：404 · 研究领域：Electrocatalysts for Energy Conversion、Catalytic Processes in Materials Science、CO2 Reduction Techniques and Catalysts

Single-atom catalysts (SACs) include a promising family of electrocatalysts with unique geometric structures. Beyond conventional ones with fully isolated metal sites, an emerging class of catalysts with the adjacent metal single atoms exhibiting intersite metal-metal interactions appear in recent years and can be denoted as correlated SACs (C-SACs). This type of catalysts provides more opportunities to achieve substantial structural modification and performance enhancement toward a wider range of electrocatalytic applications. On the basis of a clear identification of metal-metal interactions, this review critically examines the recent research progress in C-SACs. It shows that the control of metal-metal interactions enables regulation of atomic structure, local coordination, and electronic properties of metal single atoms, which facilitate the modulation of electrocatalytic behavior of C-SACs. Last, we outline directions for future work in the design and development of C-SACs, which is indispensable for creating high-performing new SAC architectures.