Elucidating the Respective Roles of Photochemical and Photothermal Effects in Photocatalytic Methanol Decomposition (IMAGE)
Caption
- A rationally engineered Cu-TiO2/Ti model catalyst enables the distinction of photochemical and photothermal effects, revealing their distinct roles in enhancing CH3OH dehydrogenation and suppressing HCHO overoxidation, thus achieving high H2 production, excellent HCHO selectivity, and long-term stability in a non-noble metal system.
- The integration of in situ resonant Auger electron spectroscopy with in situ diffuse reflectance infrared Fourier transform spectroscopy, in situ Synchrotron radiation photoelectron spectroscopy, and molecular dynamics simulations enable direct visualization of charge transfer pathways and elucidates how the photothermal effect promotes HCHO desorption while preventing overoxidation.
Credit
Qichen Liu, Yida Zhang, Limin Liu, Zixiang Huang, Jiawei Zheng, Shiqin Jian, Haibin Pan, Chi Cao, Hongliang Li, Qing Yang*, Yu Bai*, Xusheng Zheng.
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CC BY-NC-ND