材料科学技术(英文版)2024，Vol.189Issue(22) ：203-210.DOI:10.1016/j.jmst.2023.11.068

Effective CO2 activation of enriched oxygen vacancies for photothermal CO2 methanation

Peipei Du Guoqiang Deng Zhonghua Li Junchuan Sun Lu Wang Yongqiang Yang Jun Wang Yaguang Li Xiaoming Xu Yuanming Zhang Wangxi Liu Gang Liu Zhigang Zou Zhaosheng Li
材料科学技术(英文版)2024，Vol.189Issue(22) ：203-210.DOI:10.1016/j.jmst.2023.11.068
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Effective CO2 activation of enriched oxygen vacancies for photothermal CO2 methanation

Peipei Du 1Guoqiang Deng 2Zhonghua Li 1Junchuan Sun 3Lu Wang 3Yongqiang Yang 2Jun Wang 1Yaguang Li 4Xiaoming Xu 1Yuanming Zhang 1Wangxi Liu 1Gang Liu 2Zhigang Zou 1Zhaosheng Li1
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作者信息

  • 1. Collaborative Innovation Center of Advanced Microstructures,National Laboratory of Solid State Microstructures,College of Engineering and Applied Sciences,Nanjing University,Nanjing 210093,China;Jiangsu Key Laboratory of Nano Technology,Nanjing University,Nanjing 210093,China
  • 2. Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China
  • 3. School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen 518172, China
  • 4. Research Center for Solar Driven Carbon Neutrality,Engineering Research Center of Zero-carbon Energy Buildings and Measurement Techniques,Ministry of Education,The College of Physics Science and Technology,Institute of Life Science and Green Development,Hebei University,Baoding 071002,China
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Abstract

Oxygen vacancies have been widely concerned with the facilitation effects of CO2 activation for CO2 methanation.However,little attention has been paid to the generation of active intermediate species induced by enriched oxygen vacancies.Herein,we discovered that CeNiO3-δ catalyst enriched oxygen va-cancies can efficiently activate CO2 and realize high activity for photothermal CO2 methanation.In situ dif-fuse reflectance infrared Fourier transform spectroscopy(DRIFTS)proved that oxygen vacancies are bene-ficial to the formation of reactive intermediate species of polydentate carbonate over CeNiO3-δ,which is crucial for efficient CO2 methanation.These results revealed mechanistic insights into how effective CO2 activation induced by oxygen vacancies can be manipulated by adjusting the adsorption intermediate species.

Key words

Oxygen vacancies/CO2 activation/Active intermediate species/Photo-thermal CO2 methanation/CeNiO3

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基金项目

National Natural Science Foundation of China(22025202)

National Natural Science Foundation of China(51572191)

National Natural Science Foundation of China(21633004)

Jiangsu Funding Program for Excellent Postdoctoral Talent()

出版年

2024
材料科学技术(英文版)
中国金属学会 中国材料研究学会 中国科学院金属研究所

材料科学技术(英文版)

CSTPCDCSCD
影响因子：0.657
ISSN：1005-0302
参考文献量62
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