2026-10-14T22:09:34Z https://www.scidb.cn/oai

10.57760/sciencedb.j00124.00169 2025-02-26T19:54:58Z

2025-02-26 Constructing graphite-CeO2 interfaces to enhance the photothermal activity for solar-driven dry reforming of methane doi:10.57760/sciencedb.j00124.00169 en CeO2 based semiconductor are widely used in solar-driven photothermal catalytic dry reforming of methane (DRM) reaction, but still suffer from low activity and low light utilization efficiency. This study developed graphite-CeO2 interfaces to enhance solar-driven photothermal catalytic DRM. Compared with carbon nanotubes-modified CeO2 (CeO2-CNT), graphite-modified CeO2 (CeO2-GRA) constructed graphite-CeO2 interfaces with distortion in CeO2, leading to the formation abundant oxygen vacancies. These graphite-CeO2 interfaces with oxygen vacancies enhanced optical absorption and promoted the generation and separation of photogenerated carriers. The high endothermic capacity of graphite elevated the catalyst surface temperature from 592.1 ℃ to 691.3 ℃, boosting light-to-thermal conversion. The synergy between photogenerated carriers and localized heat enabled Ni/CeO2-GRA to achieve a CO production rate of 9985.6 mmol gcat.-1 h-1 (vs. 7192.4 for Ni/ CeO2) and a light-to-fuel efficiency of 21.8 % (vs. 13.8 % for Ni/ CeO2). This work provides insights for designing graphite-semiconductor interfaces to advance photothermal catalytic efficiency.  Dry reforming of methane; photothermal catalysis; CeO2; graphite; interfaces Li Ruitao Gong Kun Dai Yuanyuan Niu Qiang Lin Tiejun Zhong Liangshu PUBLIC https://creativecommons.org/licenses/by-nc-nd/4.0/ dataset Science Data Bank