CeO /Pd/Carbon 复合催化剂制备及其光热协同催化CO 氧化性能研究
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中图分类号：O643. 36 文献标识码： ADOI：10. 37188/CJL. 20250092 CSTR：32170. 14. CJL. 20250092
Preparation of CeO 2i /Pd/Carbon Composite Catalysts and Its Photothermal Synergistic Catalytic CO Oxidation
LIU Ziwen1，NIU Lijuan2，SUN Zaicheng3，QU Dan3* （1. Institute of Engineering Technology，Sinopec Catalyst Co.，Ltd.，Beijing 101111，China； 2. Carbon Energy Technology（CE）Co.，Ltd.，Beijing 102400，China； 3. College of Chemistry and Life Science，Beijing University of Technology，Beijing 100124，China） * Corresponding Author，E-mail：danqu@bjut. edu. cn
Abstract：Photo-thermal synergistic catalytic is an excellent application mean to solve the key scientific problems of high energy consumption and high activation energy in the traditional thermocatalytic process. The CeO 2′ Pd/Carbon photothermal catalysts（denoted as PCC）were synthesized by liquid-phase reduction，impregnation and amino acid in⁃ duction methods using carbon nanospheres as the heat source，Pd nanoparticles as the active site and the semiconductor material CeO2 as the photocatalyst and oxygen activation site，and the photothermal synergistic catalytic reaction system was constructed. The catalytic reaction system has full-spectrum absorption and excellent photothermal conversion abili⁃ ty，which could convert light energy into thermal energy to achieve in situ heating of the active site and increase the ac⁃ tive site temperature and reaction potential energy；meanwhile，it has superior charge-hole separation efficiency，which could enhance the activation of oxygen molecules，reduce the reaction activation energy and promote the reaction. Un⁃ der the light intensity of 400mW⋅cm-2 ，its complete conversion of CO can be achieved at furnace temperature of . The work could provide some reference and ideas for the design of photothermal catalysts for different systems.
Key words：photothermal catalysis；carbon monoxide oxidation；photothermal synergy；oxygen activation
1 引 言
一氧化碳（CO）是一种无色、无味且有毒性的气体，主要由煤、汽油和天然气等各种燃料不完全燃烧产生[1]，其严重危害人类健康和生态环境。（剩余20921字）
