Journal Article

FZJ-2022-02045

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Amorphizing noble metal chalcogenide catalysts at the single-layer limit towards hydrogen production

He, Y. (Corresponding author) ; Liu, L. ; Zhu, C. ; Guo, S. ; Golani, P. ; Koo, B. ; Tang, P. ; Zhao, Z. ; Xu, M. ; Zhu, C. ; Yu, P. ; Zhou, X. ; Gao, C. ; Wang, X. ; Shi, Z. ; Zheng, L. ; Yang, J. ; Shin, B. ; Arbiol, J. ; Duan, H. ; Du, Y. ; Heggen, M.FZJ* ; Dunin-Borkowski, R. E.FZJ* ; Guo, W. ; Wang, Q.FZJ* ; Zhang, Z. (Corresponding author) ; Liu, Z. (Corresponding author)

2022
Macmillan Publishers Limited, part of Springer Nature [London]

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Please use a persistent id in citations: http://hdl.handle.net/2128/31160  doi:10.1038/s41929-022-00753-y

Abstract: Rational design of noble metal catalysts with the potential to leverage efficiency is vital for industrial applications. Such an ultimate atom-utilization efficiency can be achieved when all noble metal atoms exclusively contribute to catalysis. Here, we demonstrate the fabrication of a wafer-size amorphous PtSex film on a SiO2 substate via a low-temperature amorphization strategy, which offers single-atom-layer Pt catalysts with high atom-utilization efficiency (~26 wt%). This amorphous PtSex (1.2 < x < 1.3) behaves as a fully activated surface, accessible to catalytic reactions, and features a nearly 100% current density relative to a pure Pt surface and reliable production of sustained high-flux hydrogen over a 2 inch wafer as a proof-of-concept. Furthermore, an electrolyser is demonstrated to generate a high current density of 1,000 mA cm−2. Such an amorphization strategy is potentially extendable to other noble metals, including the Pd, Ir, Os, Rh and Ru elements, demonstrating the universality of single-atom-layer catalysts.

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Contributing Institute(s):

1. Physik Nanoskaliger Systeme (ER-C-1)

Research Program(s):

1. 5351 - Platform for Correlative, In Situ and Operando Characterization (POF4-535) (POF4-535)
2. ESTEEM3 - Enabling Science and Technology through European Electron Microscopy (823717) (823717)

Appears in the scientific report 2022

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Database coverage:
; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Essential Science Indicators ; IF >= 40 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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