Optically selective catalyst design with minimized thermal emission for facilitating photothermal catalysis

Zhengwei Yang, Zhen-Yu Wu, Zhexing Lin, Tianji Liu, Liping Ding, Wenbo Zhai, Zipeng Chen, Yi Jiang, Jinlei Li, Siyun Ren, Zhenhui Lin, Wangxi Liu, Jianyong Feng, Xing Zhang, Wei Li, Yi Yu, Bin Zhu (), Feng Ding, Zhaosheng Li and Jia Zhu ()
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Zhengwei Yang: Nanjing University
Zhen-Yu Wu: Southern University of Science and Technology
Zhexing Lin: Nanjing University
Tianji Liu: Chinese Academy of Sciences
Liping Ding: Shaanxi University of Science & Technology
Wenbo Zhai: ShanghaiTech University
Zipeng Chen: Nanjing University
Yi Jiang: Nanjing University
Jinlei Li: Nanjing University
Siyun Ren: Nanjing University
Zhenhui Lin: Nanjing University
Wangxi Liu: Nanjing University
Jianyong Feng: Nanjing University
Xing Zhang: Nanjing University
Wei Li: Chinese Academy of Sciences
Yi Yu: ShanghaiTech University
Bin Zhu: Nanjing University
Feng Ding: Chinese Academy of Sciences
Zhaosheng Li: Nanjing University
Jia Zhu: Nanjing University

Nature Communications, 2024, vol. 15, issue 1, 1-10

Abstract: Abstract Converting solar energy into fuels is pursued as an attractive route to reduce dependence on fossil fuel. In this context, photothermal catalysis is a very promising approach through converting photons into heat to drive catalytic reactions. There are mainly three key factors that govern the photothermal catalysis performance: maximized solar absorption, minimized thermal emission and excellent catalytic property of catalyst. However, the previous research has focused on improving solar absorption and catalytic performance of catalyst, largely neglected the optimization of thermal emission. Here, we demonstrate an optically selective catalyst based Ti3C2Tx Janus design, that enables minimized thermal emission, maximized solar absorption and good catalytic activity simultaneously, thereby achieving excellent photothermal catalytic performance. When applied to Sabatier reaction and reverse water-gas shift (RWGS) as demonstrations, we obtain an approximately 300% increase in catalytic yield through reducing the thermal emission of catalyst by ~70% under the same irradiation intensity. It is worth noting that the CO2 methanation yield reaches 3317.2 mmol gRu−1 h−1 at light power of 2 W cm−2, setting a performance record among catalysts without active supports. We expect that this design opens up a new pathway for the development of high-performance photothermal catalysts.

Date: 2024
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DOI: 10.1038/s41467-024-51896-4

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