期刊
CATALYSIS SCIENCE & TECHNOLOGY
卷 12, 期 5, 页码 1628-1636出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1cy02281d
关键词
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资金
- National Natural Science Foundation of China [21832005, 22072071, 22102087]
- National Key Research and Development Program of China [2020YFA0710301]
- Postdoctoral Science Foundation of China [2021M691901, 2020M672055]
- Natural Science Foundation of Shandong Province [ZR2020JQ06, ZR2020QB058, ZR2021QB040]
- Project for Scientific Research Innovation Team of Young Scholar in Colleges and Universities of Shandong Province [2019KJA009]
- Shandong University multidisciplinary research and innovation team of young scholars [2020QNQT11]
- Taishan Scholar Program of Shandong Province
Dry reforming of CH4 by photothermal catalysis is an efficient way to produce syngas while mitigating the greenhouse effect. This study demonstrates the excellent photothermal synergistic effect of a composite material constructed by anchoring Ag/AgBr on CsPbBr3. The mutual promotion of thermochemical and photochemical processes greatly improves the energy utilization efficiency and reaction kinetics.
Dry reforming of CH4 by photothermal catalysis is considered to be a promising approach to produce syngas. It can not only store useful chemical energy, but also consume CO2 and CH4 to mitigate the greenhouse effect. Herein, we anchor Ag/AgBr on CsPbBr3 through an in situ ion exchange route to construct a composite material, which exhibits an excellent photothermal synergistic effect in the dry reforming of CH4. The CO production rate of the 7 wt% Ag/AgBr/CsPbBr3 composite through photothermal catalysis is 456.15 mu mol g(-1) h(-1), which is approximately 79 times and 195 times higher than that through pure thermal catalysis and pure photocatalysis, respectively. Moreover, the CO production rate of 7 wt% Ag/AgBr/CsPbBr3 is 7.25 times higher than that of pristine CsPbBr3. The mutual promotion of the thermochemical and photochemical processes significantly improves the energy utilization efficiency and reaction kinetics, leading to high photothermal catalytic efficiency. This work indicates that the inorganic halide perovskite shows excellent photothermal catalytic activity, and provides an alternative way to extend the application range of perovskite materials.
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