Atomic layer deposited Pt-Ru dual-metal dimers and identifying their active sites for hydrogen evolution reaction

Zhang, Lei; Si, Rutong; Liu, Hanshuo; Chen, Ning; Wang, Qi; Adair, Keegan R.; Wang, Zhiqiang; Chen, Jiatang; Song, Zhongxin; Li, Junjie; Banis, Mohammad Norouzi; Li, Ruying; Sham, Tsun‐Kong; Gu, Meng; Liu, Limin; Botton, Gianluigi A.; Sun, Xueliang

doi:10.1038/s41467-019-12887-y

articleNature CommunicationsOct 30, 2019GOLD OA

Atomic layer deposited Pt-Ru dual-metal dimers and identifying their active sites for hydrogen evolution reaction

LZLei Zhang RSRutong Si HLHanshuo Liu NCNing Chen QWQi Wang

Western University · Beijing Computational Science Research Center · +4 more institutions

PubMed

Indexed incrossrefdoajpubmed

Abstract

Single atom catalysts exhibit particularly high catalytic activities in contrast to regular nanomaterial-based catalysts. Until recently, research has been mostly focused on single atom catalysts, and it remains a great challenge to synthesize bimetallic dimer structures. Herein, we successfully prepare high-quality one-to-one A-B bimetallic dimer structures (Pt-Ru dimers) through an atomic layer deposition (ALD) process. The Pt-Ru dimers show much higher hydrogen evolution activity (more than 50 times) and excellent stability compared to commercial Pt/C catalysts. X-ray absorption spectroscopy indicates that the Pt-Ru dimers structure model contains one Pt-Ru bonding configuration. First principle…

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Topics & keywords

Topics

Keywords

Bimetallic strip
Catalysis
Dimer
Ruthenium
Materials science
Atomic layer deposition
Atom (system on chip)
Nanomaterials

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