Related Experiment Video
Updated: Sep 11, 2026

Reverse Microemulsion-mediated Synthesis of Monometallic and Bimetallic Early Transition Metal Carbide and Nitride Nanoparticles
Published on: November 27, 2015
Towards Sustainable Energy-Saving Hydrogen Production: Recent Advances in Tungsten-Based Urea Oxidation
Yi Zeng1, Shun Lu2, Yuan Wang3
1School of Physics and Astronomy, Beijing Normal University, Beijing, China.
Abstract:
The urea oxidation reaction (UOR), as a multi-electron coupling reaction, provides an efficient route for treating urea-containing wastewater and a sustainable strategy for energy-saving H2 production. Nickel-based catalysts attract attention due to their low cost and favorable activity, but single-metal catalysts still suffer from limited activity and stability. To overcome these limitations, researchers enhance performance through doping, structural regulation, and composite strategies. Tungsten (W), with high electronegativity, multivalence, excellent conductivity, and environmental friendliness, is widely incorporated into nickel-based catalysts to modulate electronic structure, improve adsorption and conversion of intermediates, and enhance stability. This review summarizes recent progress in W-based UOR catalysts, focusing on reaction mechanisms, structural regulation strategies, and performance improvement approaches. Current challenges include active site identification, catalyst stability, reaction selectivity, and the lack of standardized evaluation protocols. Future research directions involve elucidating catalytic mechanisms, optimizing material design, establishing unified evaluation standards, and developing high-performance W-based composites, aiming to advance UOR applications in energy conversion, wastewater treatment, and sensing.
More Related Videos
09:18Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications
Published on: June 21, 2017
08:40Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
Published on: December 6, 2021
Related Concept Videos
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...
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...
Microbial Fuel Cells