Related Experiment Video
Updated: Oct 28, 2026

Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications
Published on: June 21, 2017
Boosting Electron/Mass Transport via Interfacial Coupling in a Dual-Supported Catalyst toward Ampere-Level Hydrogen
Peng Wang1,2, Meijun Liu1, Tiantian Ma1,2
1School of Chemistry, Beihang University, Beijing100191, China.
Abstract:
Developing hydrogen evolution reaction (HER) electrocatalysts with high activity and long-term durability at industrial current densities remains challenging because catalytic kinetics, electron transport, and mass transport must be optimized simultaneously. Here, we report a one-pot method to anchor Pt-single-atom-modified NiCoP onto MXene with a high surface coverage of ∼97%. The Pt-NiCoP@MXene catalyst requires overpotentials of only 13.8 and 175 mV in 1 M KOH to deliver 10 and 1000 mA cm-2, respectively, and exhibits an ultralow decay rate of 7.1 μV h-1 over 1000 h at 1000 mA cm-2 in a three-electrode system. In an anion-exchange membrane electrolyzer, it achieves 1 A cm-2 at 1.74 V in a 4 cm2 cell with 98% voltage retention after 1000 h and maintains 97% retention over 500 h with a scaled 25 cm2 cell. Experiments and DFT calculations demonstrate the interface strong coupling via Ni/Co-O-Ti bonding bridges NiCoP and MXene effectively and accelerates the electron transport of catalytic layer, while the uniform dispersion of NiCoP on MXene improves surface wettability and facilitates bubble release and electrolyte replenishment. Additionally, Pt-P coordination increases the metallicity of Pt atoms and optimizes hydrogen adsorption/desorption. This work provides a facile strategy for synthesizing high-quality dual-supported catalysts and validates their industrial application potential.
Related Concept Videos
Heterogeneous Catalysis
Catalysis
Catalysis
Batteries and Fuel Cells
Reduction of Alkenes: Catalytic Hydrogenation
Metals like palladium, platinum, and nickel are commonly used in their solid forms — fine powder on an inert surface. As these catalysts remain insoluble in the reaction mixture, they are referred to as heterogeneous catalysts.
The hydrogenation process takes place on the surface of...
Interfacial Electrochemical Methods: Overview