Hydride-doped Ag17Cu10 nanoclusters as high-performance electrocatalysts for CO2 reduction
Xueli Sun,
Peng Wang,
Xiaodan Yan,
Huifang Guo,
Lin Wang,
Qinghua Xu,
Bingzheng Yan,
Simin Li,
Jinlu He,
Guangxu Chen,
Hui Shen,
Nanfeng Zheng
Affiliations
Xueli Sun
College of Energy Materials and Chemistry, Inner Mongolia University, Hohhot 010021, China
Peng Wang
School of Environment and Energy, State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, South China University of Technology, Guangzhou 510006, China
Xiaodan Yan
College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, China
Huifang Guo
College of Energy Materials and Chemistry, Inner Mongolia University, Hohhot 010021, China
Lin Wang
College of Energy Materials and Chemistry, Inner Mongolia University, Hohhot 010021, China
Qinghua Xu
College of Energy Materials and Chemistry, Inner Mongolia University, Hohhot 010021, China
Bingzheng Yan
College of Energy Materials and Chemistry, Inner Mongolia University, Hohhot 010021, China
Simin Li
College of Energy Materials and Chemistry, Inner Mongolia University, Hohhot 010021, China
Jinlu He
College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, China; Corresponding author
Guangxu Chen
School of Environment and Energy, State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, South China University of Technology, Guangzhou 510006, China; Corresponding author
Hui Shen
College of Energy Materials and Chemistry, Inner Mongolia University, Hohhot 010021, China; Corresponding author
Nanfeng Zheng
State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, National & Local Joint Engineering Research Center for Preparation Technology of Nanomaterials, and National Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China; Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen 361102, China
Summary: The atomically precise metal electrocatalysts for driving CO2 reduction reactions are eagerly pursued as they are model systems to identify the active sites, understand the reaction mechanism, and further guide the exploration of efficient and practical metal nanocatalysts. Reported herein is a nanocluster-based electrocatalyst for CO2 reduction, which features a clear geometric and electronic structure, and more importantly excellent performance. The nanocatalysts with the molecular formula of [Ag17Cu10(dppm)4(PhC≡C)20H4]3+ have been obtained in a facile way. The unique metal framework of the cluster, with silver, copper, and hydride included, and dedicated surface structure, with strong (dppm) and labile (alkynyl) ligands coordinated, endow the cluster with excellent performance in electrochemical CO2 reduction reaction to CO. With the atomically precise electrocatalysts in hand, not only high reactivity and selectivity (Faradaic efficiency for CO up to 91.6%) but also long-term stability (24 h), are achieved.
