光热治疗
催化作用
制氢
材料科学
光催化
胶体金
纳米颗粒
光热效应
纳米技术
化学工程
等离子体子
多孔性
钙钛矿(结构)
化学
光电子学
工程类
复合材料
生物化学
作者
Xinti Yu,Zechuan Yu,Heng Zhao,Ian D. Gates,Jinguang Hu
出处
期刊:Chemical synthesis
[OAE Publishing Inc.]
日期:2023-01-01
卷期号:3 (1): 3-3
被引量:9
摘要
The synergistic promotion by photocatalysis and thermocatalysis is a promising approach for sustainable hydrogen (H2) production. Herein, we rationally design a perovskite-based catalyst with three-dimensionally ordered macroporous structure (3DOM CaTiO3-Au) for photothermal catalytic H2 production from different substrates. The hierarchical 3DOM structure facilitates light harvesting and mass diffusion of the substrates, while the gold nanoparticles (Au NPs) promote charge separation. The photogenerated and hot electrons are oriented accumulated on the surface of Au NPs. The non-metallic gold species [Au(I)] show more activity for H2 evolution. As a result, 3DOM CaTiO3-Au exhibits excellent activity for H2 production from glycerol and other substrates with hydroxyl groups. The present work demonstrates a feasible approach to improve sustainable H2 production by rationally designing and fabricating efficient photothermal catalysts.
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