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Updated: Jun 24, 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
Zn-Doped CeO2 Nanorod-Supported Ni-Co Bimetallic Catalysts for Enhanced Photothermal Catalytic CH4-CO2 Reforming
Jiming Wang1, Min Ji1, Min Wang1
1School of Chemistry, Dalian University of Technology, Dalian 116024, Liaoning, China.
Abstract:
Photothermal catalytic dry reforming of methane (PTC-DRM) offers a promising route for greenhouse gas valorization and solar-to-chemical energy conversion. Herein, Zn-doped CeO2 nanorod-supported Ni-Co bimetallic catalysts were synthesized via a hydrothermal and impregnation method for PTC-DRM. Zn doping induces the formation of abundant oxygen vacancies, strengthens the metal-support interaction, and accelerates charge carrier separation and photothermal conversion. The optimized Ni-Co/5Zn-CeO2-NR catalyst displays exceptional activity at 650 °C under illumination, with greatly improved CH4 and CO2 conversions and syngas yields. Light irradiation suppresses the reverse water-gas shift reaction and mitigates graphitic carbon deposition, markedly enhancing catalytic stability. This work establishes Zn-mediated defect engineering as an effective strategy for designing high-performance Ni-based photothermal DRM catalysts.

