Paving “Pt···Ti” hot electron transportation bridge for outstanding photothermal catalytic reduction of CO ₂

Open AccessCCS ChemistryRESEARCH ARTICLES23 Aug 2024Paving "Pt···Ti" hot electron transportation bridge for outstanding photothermal catalytic reduction of CO2 Peng Jiang, Wen-Rui Liu, Kun Wang, Yang Ding, Chun-Hua Wang, Yun Hau Ng, Li-Hua Chen and Bao-Lian Su Peng Jiang , Wen-Rui Liu , Kun Wang , Yang Ding , Chun-Hua Wang , Yun Hau Ng , Li-Hua Chen and Bao-Lian Su Cite this: CCS Chemistry. 2024;0:1–24https://doi.org/10.31635/ccschem.024.202404469 SectionsSupplemental MaterialAboutPDF ToolsAdd to favoritesDownload CitationsTrack Citations ShareFacebookTwitterLinked InEmail Coupling photocatalysis with thermocatalysis is considered as the best way for CO2 reduction to produce useful hydrocarbons. Particularly, photocatalytic CO2 reduction activity could be improved via photothermal effect induced by local heat and the enhanced visible light harvesting from noble metal nanoparticles. However, the sluggish hot electron transfer between noble metal and semiconducting materials remains an achilles heel to achieve an applicable CO2 reduction. Herein, a highly efficient "Pt···Ti" hot electron transportation bridge between Pt nanoparticles and hierarchically porous TiO2 (HP-TiO2) is paved. Such photothermocatalyst can lower the barrier of charge migration and exhibits significantly boosted CO2 reduction with an outstanding hydrocarbon productivity of 29.68 μmol·h−1·g−1, being around 21 times higher than that of bulk-TiO2, and an extraordinary selectivity to CH4 over 99% under simulated sunlight irradiation. In-situ characterizations and first-principle calculations confirm that the manufactured "Pt···Ti" hot electron transportation bridge exerts a significant role in promoting CO2 molecule activation and conversion. The innovative concept of paving an efficient hot electron shift bridge can act as a crucial springboard in the practical application of advanced photothermocatalyst for efficient CO2 reduction and high-valued chemical production. Download figure Download PowerPoint Previous articleNext article FiguresReferencesRelatedDetails Issue AssignmentNot Yet AssignedSupporting Information Copyright & Permissions© 2024 Chinese Chemical Society Downloaded 0 times PDF downloadLoading ...