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Published on: December 6, 2021
Ruthenium/Graphene-like Layered Carbon Composite as an Efficient Hydrogen Evolution Reaction Electrocatalyst
Zhe Chen1,2, Jinfeng Lu2, Yuejie Ai1
1School of Environmental and Chemical Engineering, North China Electric Power University , Beijing 102206, China.
Researchers developed a new graphene-like layered carbon (GLC) material to support ruthenium nanoparticles for efficient hydrogen evolution reaction (HER) catalysis. This novel Ru/GLC catalyst demonstrates high activity and stability, offering a cost-effective alternative to platinum for future energy applications.
Area of Science:
- Materials Science
- Electrochemistry
- Catalysis
Background:
- Efficient water splitting is crucial for modern energy devices.
- Developing electrocatalysts with platinum-like activity and stability remains a significant challenge.
Purpose of the Study:
- To synthesize a novel graphene-like layered carbon (GLC) material.
- To utilize GLC as a support for ultrasmall ruthenium nanoparticles (Ru).
- To evaluate the catalytic performance of the resulting Ru/GLC for the hydrogen evolution reaction (HER).
Main Methods:
- Facile synthesis of GLC from a layered silicate template.
- Loading ultrasmall Ru nanoparticles onto GLC in supercritical water.
- Electrocatalytic testing of Ru/GLC for HER in sulfuric acid solution.
Main Results:
- GLC exhibited a layered structure facilitating uniform dispersion of Ru nanoparticles (up to 62 wt %).
- The Ru/GLC catalyst showed an exceptionally low onset potential (3 mV) and a small Tafel slope (46 mV/decade) for HER.
- The catalyst's performance is comparable to transition-metal dichalcogenides and selenides.
Conclusions:
- Ru/GLC is a highly active and stable electrocatalyst for HER.
- The cost-effectiveness of ruthenium compared to platinum makes Ru/GLC a promising candidate for future energy applications.
- This study presents a viable strategy for developing advanced HER catalysts.
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