Related Experiment Video
Updated: Jun 11, 2025

Author Spotlight: Design and Evaluation of Au-Electroplated Carbon Fiber Cloth Electrodes for Hydrogen Peroxide Fuel Cells
Published on: October 20, 2023
Rationally Designed Mo/Ru-Based Multi-Site Heterogeneous Electrocatalyst for Accelerated Alkaline Hydrogen Evolution
Liqiang Hou1, Chuang Li2, Haeseong Jang3
1College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China.
A novel Mo/Ru-based catalyst with three active sites accelerates alkaline hydrogen evolution reaction (HER) kinetics by facilitating water dissociation and hydrogen release. This multi-site catalyst demonstrates excellent performance and stability for efficient hydrogen production.
Area of Science:
- Materials Science
- Electrochemistry
- Catalysis
Background:
- Alkaline hydrogen evolution reaction (HER) kinetics are sluggish.
- Developing multi-site electrocatalysts for efficient water splitting is challenging.
Purpose of the Study:
- To design a Mo/Ru-based catalyst with three distinct active sites for alkaline HER.
- To investigate the catalyst's mechanism for accelerating water dissociation, H-H coupling, and H2 release.
Main Methods:
- Rational design of a Ru/Mo2C/MoO2 catalyst.
- Electrochemical performance evaluation in alkaline media.
- Density functional theory (DFT) calculations.
Main Results:
- The catalyst exhibited synergistic effects at the Mo2C/MoO2 interface, enhancing water dissociation.
- Interfacial Ru facilitated hydrogen binding, coupling, and release.
- Achieved low overpotentials (19 mV at 10 mA cm−2) and high stability.
Conclusions:
- The multi-site catalyst design principle effectively accelerates alkaline HER kinetics.
- This approach offers a pathway for designing advanced catalysts for multi-electron reactions.
- Demonstrated superior performance compared to state-of-the-art alkaline HER electrocatalysts.
More Related Videos
09:18Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications
Published on: June 21, 2017
06:32A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions
Published on: August 17, 2016
Related Concept Videos
Reduction of Alkenes: Asymmetric Catalytic Hydrogenation
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
Catalysis
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...
Thermal and Photochemical Electrocyclic Reactions: Overview
Oxidation of Alkenes: Syn Dihydroxylation with Potassium Permanganate
Electrochemistry: Overview