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

被引：11

作者：

Doan, Thi Luu Luyen ^{[1
]}

Nguyen, Dinh Chuong ^{[2
]}

Bacirhonde, Patrick M. ^{[1
]}

Yasin, Ahmed S. ^{[3
]}

Rezk, Abdelrahman I. ^{[1
]}

Dzade, Nelson Y. ^{[4
]}

Kim, Cheol Sang ^{[1
,5
,6
]}

Park, Chan Hee ^{[1
,5
,6
]}

机构：

[1] Jeonbuk Natl Univ, Grad Sch, Dept Bionanotechnol & Bioconvergence Engn, Jeonju 54896, Jeonrabugdo, South Korea

[2] Jeonbuk Natl Univ, Dept Nano Convergence Engn, Jeonbuk, Jeonju 54896, Jeonrabugdo, South Korea

[3] Chungnam Natl Univ, Grad Sch Energy Sci & Technol, Daejeon 34134, South Korea

[4] Penn State Univ, Dept Energy & Mineral Engn, Univ Pk, State Coll, PA 16802 USA

[5] Jeonbuk Natl Univ, Sch Engn, Div Mech Design Engn, Jeonju 54896, Jeonrabugdo, South Korea

[6] Jeonbuk Natl Univ, Grad Sch, Dept Bionanosystem Engn, Jeonju 54896, Jeonrabugdo, South Korea

来源：

ENERGY & ENVIRONMENTAL MATERIALS | 2023年 / 6卷 / 05期

基金：

新加坡国家研究基金会;

关键词：

hydrogen evolution reaction; Mo2C nanosheets; NixMoOy nanorod arrays; pH-universal catalyst; single Rh atoms; TRANSITION-METAL CARBIDES; SINGLE-ATOM; IN-SITU; ELECTROCATALYSTS; EFFICIENT; NANOWIRES; PERFORMANCE; CATALYSTS; CO; NANOPARTICLES;

D O I：

10.1002/eem2.12407

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页数：15

共 68 条

[1] Bis σ-Bond Dihydrogen and Borane Ruthenium Complexes: Bonding Nature, Catalytic Applications, and Reversible Hydrogen Release [J].