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Updated: Mar 23, 2026

Synthesis 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
Coupled molybdenum carbide and reduced graphene oxide electrocatalysts for efficient hydrogen evolution
Ji-Sen Li1,2, Yu Wang1, Chun-Hui Liu1
1Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
Researchers developed a novel molybdenum carbide and reduced graphene oxide hybrid catalyst for efficient hydrogen production via water splitting. This earth-abundant catalyst shows superior performance and stability, offering a sustainable alternative to noble metals.
Area of Science:
- Materials Science
- Electrochemistry
- Catalysis
Background:
- Electrochemical water splitting is a key sustainable method for hydrogen production.
- Developing cost-effective, earth-abundant non-noble metal catalysts for the hydrogen evolution reaction (HER) is crucial but challenging.
Purpose of the Study:
- To synthesize and characterize a novel 2D coupled hybrid catalyst for enhanced HER.
- To investigate the catalytic activity, stability, and active sites of the new material.
Main Methods:
- Synthesis of a ternary polyoxometalate-polypyrrole/reduced graphene oxide nanocomposite precursor.
- Formation of a two-dimensional coupled hybrid of molybdenum carbide and reduced graphene oxide.
- Electrocatalytic testing in acidic media.
- Density functional theory (DFT) calculations.
Main Results:
- The hybrid catalyst demonstrated outstanding electrocatalytic activity for HER.
- Excellent stability was observed in acidic media.
- DFT calculations identified pyridinic nitrogens and carbon atoms in graphene as active sites for HER.
- Performance surpasses previously reported non-noble metal catalysts.
Conclusions:
- The developed molybdenum carbide/reduced graphene oxide hybrid catalyst offers a promising low-cost, earth-abundant alternative for efficient hydrogen production.
- This work opens new avenues for designing advanced nanomaterials using polyoxometalates and conducting polymers for catalysis.
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