Dopant triggered atomic configuration activates water splitting to hydrogen.

Autor: Wu R; Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, New Cornerstone Science Laboratory, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, University of Science and Technology of China, Hefei, 230026, Anhui, P. R. China., Xu J; Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 215123, Suzhou, P. R. China., Zhao CL; Department of Chemical Physics, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, Anhui, P. R. China., Su XZ; Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, CAS, 201210, Shanghai, P. R. China., Zhang XL; Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, New Cornerstone Science Laboratory, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, University of Science and Technology of China, Hefei, 230026, Anhui, P. R. China., Zheng YR; Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, New Cornerstone Science Laboratory, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, University of Science and Technology of China, Hefei, 230026, Anhui, P. R. China., Yang FY; Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, New Cornerstone Science Laboratory, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, University of Science and Technology of China, Hefei, 230026, Anhui, P. R. China., Zheng XS; National Synchrotron Radiation Laboratory, University of Science and Technology of China, 230029, Hefei, P. R. China., Zhu JF; National Synchrotron Radiation Laboratory, University of Science and Technology of China, 230029, Hefei, P. R. China., Luo J; School of Materials Science and Engineering, Tianjin University of Technology, 300384, Tianjin, P. R. China., Li WX; Department of Chemical Physics, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, Anhui, P. R. China., Gao MR; Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, New Cornerstone Science Laboratory, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, University of Science and Technology of China, Hefei, 230026, Anhui, P. R. China. mgao@ustc.edu.cn., Yu SH; Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, New Cornerstone Science Laboratory, Department of Chemistry, Institute of Biomimetic Materials & Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, University of Science and Technology of China, Hefei, 230026, Anhui, P. R. China. shyu@ustc.edu.cn.
Jazyk: angličtina
Zdroj: Nature communications [Nat Commun] 2023 Apr 21; Vol. 14 (1), pp. 2306. Date of Electronic Publication: 2023 Apr 21.
DOI: 10.1038/s41467-023-37641-3
Abstrakt: Finding highly efficient hydrogen evolution reaction (HER) catalysts is pertinent to the ultimate goal of transformation into a net-zero carbon emission society. The design principles for such HER catalysts lie in the well-known structure-property relationship, which guides the synthesis procedure that creates catalyst with target properties such as catalytic activity. Here we report a general strategy to synthesize 10 kinds of single-atom-doped CoSe 2 -DETA (DETA = diethylenetriamine) nanobelts. By systematically analyzing these products, we demonstrate a volcano-shape correlation between HER activity and Co atomic configuration (ratio of Co-N bonds to Co-Se bonds). Specifically, Pb-CoSe 2 -DETA catalyst reaches current density of 10 mA cm -2 at 74 mV in acidic electrolyte (0.5 M H 2 SO 4 , pH ~0.35). This striking catalytic performance can be attributed to its optimized Co atomic configuration induced by single-atom doping.
(© 2023. The Author(s).)
Databáze: MEDLINE
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