首页|Atomic Dispersion of Rh on Interconnected Mo2C Nanosheet Network Intimately Embedded in 3D NixMoOy Nanorod Arrays for pH-Universal Hydrogen Evolution

Atomic Dispersion of Rh on Interconnected Mo2C Nanosheet Network Intimately Embedded in 3D NixMoOy Nanorod Arrays for pH-Universal Hydrogen Evolution

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Herein,a simple synthetic approach is employed for the atomic dispersion of Rh atoms(Rh SAs)over the surface of interconnected Mo2C nanosheets intimately embedded in a three-dimensional NixMoOy nanorod arrays(NixMoOy NRs)framework;we found that the introduction of both isolated Rh SAs and NixMoOy NRs adjusts the electrocatalytic function of the host Mo2C toward the direction of being an advanced and highly stable electrocatalyst for efficient hydrogen evolution at pH-universal conditions.As a result,the proposed catalyst outperforms most recently reported transition metal-based catalysts,and its performance even rivals that of commercial Pt/C,as demonstrated by its ultralow overpotentials of 31.7,109.7,and 95.4 mV at a current density of 10 mA cm-2,along with its small Tafel slopes of 42.4,51.2,and 46.8 mV dec-1 in acidic,neutral,and alkaline conditions,respectively.In addition,the catalyst shows remarkable long-term stability over all pH values with good maintenance of its catalytic activity and structural characteristics after continuous operation.

hydrogen evolution reactionMo2C nanosheetsNixMoOy nanorod arrayspH-universal catalystsingle Rh atoms

Thi Luu Luyen Doan、Dinh Chuong Nguyen、Patrick M.Bacirhonde、Ahmed S.Yasin、Abdelrahman I.Rezk、Nelson Y.Dzade、Cheol Sang Kim、Chan Hee Park

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Department of Bionanotechnology and Bioconvergence Engineering,Graduate School,Jeonbuk National University,Jeonju Jeollabuk-do 54896,Korea

Department of Nano Convergence Engineering,Jeonbuk National University,Jeonju Jeollabuk-do,Jeonbuk 54896,Korea

Graduate School of Energy Science and Technology,Chungnam National University,Daejeon 34134,Korea

Department of Energy and Mineral Engineering,The Pennsylvania State University,University Park State College,PA 16802,USA

Division of Mechanical Design Engineering,School of Engineering,Jeonbuk National University,Jeonju Jeollabuk-do 54896,Korea

Department of Bionanosystem Engineering Graduate School,Jeonbuk National University,Jeonju Jeollabuk-do 54896,Korea

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Regional Leading Research Center ProgramNational Research Foundation funded by the Ministry of Science and ICT of Republic of Korea

2019R1A5A8080326

2023

10.1002/eem2.12407

能源与环境材料(英文)

能源与环境材料(英文)

CSCD
ISSN：
年,卷(期)：2023.6(5)
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