Amorphizing noble metal for single-atom-layer catalysis
He, Yongmin (Nanyang Technological University)
Liu, Liren (Nanjing University of Aeronautics and Astronautics. College of Aerospace Engineering)
Zhu, Chao (Nanyang Technological University)
Golani, Prafful (Nanyang Technological University)
Koo, Bonhyeong (Korea Advanced Institute of Science and Technology. Deparment of Materials Science and Engineering)
Guo, Shasha (Nanyang Technological University)
Tang, PengYi (Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons (Jülich, Alemanya))
Zhao, Zhiqiang (Nanjing University of Aeronautics and Astronautics. College of Aerospace Engineering)
Xu, Manzhang (Nanyang Technological University)
Zhu, Chao (Nanyang Technological University)
Yu, Peng (Sun Yat-sen University)
Wang, Xuewen (Northwestern Polytechnical University)
Zheng, Lu (NorthwesternPolytechnical University. Xi'an Key Laboratory of Flexible Electronics)
Yang, Jiefu (Nanyang Technological University. School of Materials Science and Engineering)
Shin, Byungha (Korea Advanced Institute of Science and Technology)
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia)
Wang, Qi Jie (Nanyang Technological University)
Zhang, Zhuhua (Nanjing University of Aeronautics and Astronautics)
Liu, Zheng (Nanyang Technological University)

Data:	2020
Resum:	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 PtSe film on a SiO substate via a low-temperature amorphization strategy, which offers single-atom-layer Pt catalysts with high atom-utilization efficiency (~26 wt%). This amorphous PtSe (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. 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.
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Prepublicació ; recerca ; Versió de l'autor
Matèria:	Amorphizations ; Atom utilization ; Metal atoms ; Metal chalcogenide ; Noble metal catalysts ; Rational design ; Single layer ; Single-atoms ; Utilization efficiency ; ]+ catalyst
Obra relacionada:	He, Y., Liu, L., Zhu, C. et al. Amorphizing noble metal chalcogenide catalysts at the single-layer limit towards hydrogen production. Nat Catal 5, 212-221 (2022) https://doi.org/10.1038/s41929-022-00753-y

DOI: 10.21203/rs.3.rs-122389/v1

20 p, 1.2 MB

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