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Research Article

Engineering single atomic ruthenium on defective nickel vanadium layered double hydroxide for highly efficient hydrogen evolution

Xiaoyu Chen1,2,3Jiawei Wan4( )Meng Zheng1,2Jin Wang1( )Qinghua Zhang5Lin Gu6Lirong Zheng7Xianzhu Fu1Ranbo Yu3,8( )
College of Materials Science and Engineering, Shenzhen University, Shenzhen 518071, China
College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
Department of Physical Chemistry, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing Institution, Beijing 100083, China
State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
Beijing National Center for Electron Microscopy and Laboratory of Advanced Materials, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
Key Laboratory of Advanced Material Processing & Mold, Ministry of Education, Zhengzhou University, Zhengzhou 450002, China
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Graphical Abstract

Vanadium defects on NiV-layered double hydroxide nanoribbon are designed and utilized to stabilize isolated ruthenium atoms with a super high loading of 12.8 wt.%. Such ruthenium single-atom catalysts demonstrate outstanding catalytic activity and stability for hydrogen evolution reaction in alkaline media.

Abstract

Fabricating single-atom catalysts (SACs) with high catalytic activity as well as great stability is a big challenge. Herein, we propose a precise synthesis strategy to stabilize single atomic ruthenium through regulating vanadium defects of nickel vanadium layered double hydroxides (NiV-LDH) ultrathin nanoribbons support. Correspondingly, the isolated atomically Ru doped NiV-LDH ultrathin nanoribbons (NiVRu-R) were successfully fabricated with a super-high Ru load of 12.8 wt.%. X-ray absorption spectrum (XAS) characterization further confirmed atomic dispersion of Ru. As catalysts for electrocatalytic hydrogen evolution reaction (HER) in alkaline media, the NiVRu-R demonstrated superior catalytic properties to the commercial Pt/C. Moreover, it maintained exceptional stability even after 5,000 cyclic voltammetry cycles. In-situ XAS and density functional theory (DFT) calculations prove that the Ru atomic sites are stabilized on supports through forming the Ru–O–V structure, which also help promote the catalytic properties through reducing the energy barrier on atomic Ru catalytic sites.

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Nano Research
Pages 4612-4619
Cite this article:
Chen X, Wan J, Zheng M, et al. Engineering single atomic ruthenium on defective nickel vanadium layered double hydroxide for highly efficient hydrogen evolution. Nano Research, 2023, 16(4): 4612-4619. https://doi.org/10.1007/s12274-022-5075-y
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Received: 13 July 2022
Revised: 18 September 2022
Accepted: 19 September 2022
Published: 24 October 2022
© Tsinghua University Press 2022
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