Boosted Solar Thermochemical Low-Temperature CO 2 Splitting On Pt/CeO 2 by Interface Catalysis.

Autor: Zong T; Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China.; University of Chinese Academy of Sciences, No.19(A) Yuquan Road, Beijing, 100049, Shijingshan District, China., Shen Q; School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, China., Han Y; Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China., Ruan C; Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, USA., Liu S; Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China.; University of Chinese Academy of Sciences, No.19(A) Yuquan Road, Beijing, 100049, Shijingshan District, China., Wang C; Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China., Tian M; Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China., Li L; Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China., Zhu Y; College of Chemical Engineering, Northwest University, Xi'an, 710069, China., Wang X; Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China.
Jazyk: angličtina
Zdroj: ChemSusChem [ChemSusChem] 2024 Aug 16, pp. e202401295. Date of Electronic Publication: 2024 Aug 16.
DOI: 10.1002/cssc.202401295
Abstrakt: Solar thermochemical CO 2 splitting using metal oxides is considered as a promising approach to produce solar fuels since it is capable to tap abundant sunlight directly and store solar energy in the renewable fuel. It remains a grand challenge to achieve highly efficient CO 2 splitting at low temperature (<800 °C) due to insufficient activation of metal oxides for CO 2 . Herein, the introduction of a small amount of Pt was found to be able to greatly increase the performance of CO 2 splitting with the highest peak CO production rate of about 65 mL min -1  g -1 , CO productivity of about 53 mL g -1 , nearly 100 % CO 2 conversion and long-term stability for 0.5Pt/CeO 2 , which exceeded most of the state-of-the-art transition metals-based oxides even at lower temperature (700 °C). This could be attributed to the addition of Pt leading to the formation of an interface (Pt 0 -O v -Ce 3+ ) after CH 4 reduction, which improved CO 2 activation and dissociation due to beneficial breakage of C=O bond by the cooperation of Pt 0 and oxygen vacancies in the interface.
(© 2024 Wiley-VCH GmbH.)
Databáze: MEDLINE
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