Hierarchical CoP@Ni2P catalysts for pH-universal hydrogen evolution at high current density

Jin，Mengtian1; Zhang，Xian3; Shi，Run1; Lian，Qing1; Niu，Shuzhang1; Peng，Ouwen1; Wang，Qun1; Cheng，Chun1,2

2021-11-05

10.1016/j.apcatb.2021.120350

APPLIED CATALYSIS B-ENVIRONMENTAL   影响因子和分区

0926-3373

For large-scale implementation of electrochemical hydrogen production, it is essential to develop electrocatalysts that work well at high current densities over a wide pH range. Herein, we use a facile method to synthesize a hierarchical bimetal phosphide (CoP@NiP) on nickel foam, which requires very low overpotentials to achieve the benchmark 10 mA cm (e.g., 16 mV in alkaline media). Furthermore, the CoP@NiP can deliver a high current density of 500 mA cm at small overpotentials and show no obvious decay after the durability test for over 48 h at all pH levels. The outstanding catalytic performance is attributed to the superaerophobicity of the electrode surface, fast electron transport as well as the increased number of exposed active sites caused by the hierarchical structure and the synergistic effect of the heterostructures. Consequently, this work provides an advanced transition metal-based phosphide for large-scale hydrogen production in all pH ranges.

Heterostructure Hierarchical High current density Hydrogen evolution reaction pH-universal

SCI ; EI

英语

第一 ; 通讯

WOS:000706857000001

20212110401018

Alkalinity ; Current density ; Durability ; Electrocatalysts ; Electrodes ; Electron emission ; Electron transport properties ; Heterojunctions ; Transition metals

Gas Fuels:522 ; Metallurgy and Metallography:531 ; Electricity: Basic Concepts and Phenomena:701.1 ; Semiconductor Devices and Integrated Circuits:714.2 ; Chemistry, General:801.1 ; Chemical Agents and Basic Industrial Chemicals:803

CHEMISTRY

2-s2.0-85106306756

Scopus

1.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
2.Guangdong Provincial Key Laboratory of Energy Materials for Electric Power,Shenzhen,518055,China
3.School of Resources and Environmental Engineering and Hubei Key Laboratory of Mineral Resources Processing and Environment,Wuhan University of Technology,Wuhan,Luoshi Road 122,430070,China

Jin，Mengtian,Zhang，Xian,Shi，Run,et al. Hierarchical CoP@Ni2P catalysts for pH-universal hydrogen evolution at high current density[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2021,296.

Jin，Mengtian.,Zhang，Xian.,Shi，Run.,Lian，Qing.,Niu，Shuzhang.,...&Cheng，Chun.(2021).Hierarchical CoP@Ni2P catalysts for pH-universal hydrogen evolution at high current density.APPLIED CATALYSIS B-ENVIRONMENTAL,296.

Jin，Mengtian,et al."Hierarchical CoP@Ni2P catalysts for pH-universal hydrogen evolution at high current density".APPLIED CATALYSIS B-ENVIRONMENTAL 296(2021).