Photocatalytic dry reforming of methane by rhodium supported monoclinic TiO_(2)-B nanobelts  

作　　者：Masaru Kushida Akira Yamaguchi Masahiro Miyauchi 

机构地区：[1]School of Materials and Chemical Technology,Tokyo Institute of Technology,2-12-1 Ookayama,Meguro-ku,Tokyo 152-8552,Japan

出　　处：《Journal of Energy Chemistry》2022年第8期562-571,I0015,共11页能源化学（英文版）

基　　金：supported by a grant from the Japan Science and Technology Agency(JST)CREST(JPMJCR15P1)。

摘　　要：The conversion of methane and carbon dioxide into syngas(dry reforming of methane;DRM)has attracted attention owing to the potential to reuse greenhouse gases.Titanium dioxide(TiO_(2))-based photocatalysts,which have been widely commercialized owing to their high efficiency,non-toxicity,and low cost,are strongly desired in DRM.Here,we report a monoclinic-phase TiO_(2)-B nanobelts-supported rhodium(Rh/TiO_(2)-B nanobelts)catalyst that efficiently promotes DRM under ultraviolet light irradiation at low temperatures.Photogenerated holes in the TiO_(2)-B nanobelts were used to oxidize methane,while the electrons were trapped in rhodium to reduce carbon dioxide.Rh/TiO_(2)-B nanobelts exhibited considerably higher durability and activity than Rh-loaded conventional TiO_(2)(anatase and rutile),owing to the lattice and/or surface oxygen reactivity in TiO_(2)-B nanobelts,which was suggested by X-ray photoelectron spectroscopy measurements and photocatalytic performance tests under an atmosphere of methane alone.This study paves the path for the effective utilization of methane by constructing active TiO_(2)-based nanometal photocatalysts.

关 键 词：Photocatalysis Dry reforming of methane Greenhouse gas conversion Gas-phase reaction Titanium dioxide TiO_(2)-B 

分 类 号：O643.36[理学—物理化学] O644.1[理学—化学] X701[环境科学与工程—环境工程]