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A molecule-like PtAu24(SC6H13)18 nanocluster as an electrocatalyst for hydrogen production

Kyuju KwakDepartment of Chemistry, Yonsei University, Seoul 03722, South KoreaWoojun ChoiDepartment of Chemistry, Yonsei University, Seoul 03722, South KoreaQing TangDepartment of Chemistry, University of California, Riverside, California 92521, USAMinseok KimDepartment of Chemistry, Yonsei University, Seoul 03722, South KoreaYongjin LeeDepartment of Chemistry, Yonsei University, Seoul 03722, South KoreaDe‐en JiangDepartment of Chemistry, University of California, Riverside, California 92521, USADongil LeeDepartment of Chemistry, Yonsei University, Seoul 03722, South Korea

2017en

ABI

Annotatsiya

Abstract The theoretically predicted volcano plot for hydrogen production shows the best catalyst as the one that ensures that the hydrogen binding step is thermodynamically neutral. However, the experimental realization of this concept has suffered from the inherent surface heterogeneity of solid catalysts. It is even more challenging for molecular catalysts because of their complex chemical environment. Here, we report that the thermoneutral catalyst can be prepared by simple doping of a platinum atom into a molecule-like gold nanocluster. The catalytic activity of the resulting bimetallic nanocluster, PtAu 24 (SC 6 H 13 ) 18 , for the hydrogen production is found to be significantly higher than reported catalysts. It is even better than the benchmarking platinum catalyst. The molecule-like bimetallic nanocluster represents a class of catalysts that bridge homogeneous and heterogeneous catalysis and may provide a platform for the discovery of finely optimized catalysts.

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DOI: 10.1038/ncomms14723

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