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Efficient Conversion of CO2to Methane Photocatalyzed by Conductive Black Titania
Yin, Guoheng1,3; Bi, Qingyuan1; Zhao, Wei1; Xu, Jijian1; Lin, Tianquan1; Huang, Fuqiang1,2
2017
Source PublicationChemCatChem
ISSN18673880
Volume9Issue:23Pages:4389-4396
AbstractOne of the major challenges encountered in CO2utilization is the development of available and cost-efficient catalysts with sufficient activity, selectivity, and stability for the generation of useful methane. Here, conductive black titania, TiO2−x, is found to be efficient in photocatalyzing the reduction of CO2to CH4. This unique material comprises a crystalline core–amorphous shell structure (TiO2@TiO2−x) with numerous surface oxygen vacancies, which facilitates the adsorption and chemical activation of CO2molecules. Under full solar irradiation, the optimized 500-TiO2−xmaterial with narrowed band gap and intermediate states below the conduction band tail exhibits a high space-time yield of CH4of 14.3 μmol g−1h−1, with 74 % selectivity and excellent photostability. The present findings can make a significant contribution, not only to develop the surface electron-modified black TiO2catalyst to boost photocatalytic efficiency, but also to establish a really viable and convenient CH4production process for CO2conversion and renewable solar energy storage. © 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
DOI10.1002/cctc.201701130
EI Accession Number20174604398618
EI KeywordsCarbon dioxide
EI Classification Number657.1 Solar Energy and Phenomena - 741.1 Light/Optics - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally - 933.1 Crystalline Solids
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Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/25904
Collection中国科学院上海硅酸盐研究所
Affiliation1.State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China;
2.Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing; 100871, China;
3.University of Chinese Academy of Sciences, Beijing; 100049, China
Recommended Citation
GB/T 7714
Yin, Guoheng,Bi, Qingyuan,Zhao, Wei,et al. Efficient Conversion of CO2to Methane Photocatalyzed by Conductive Black Titania[J]. ChemCatChem,2017,9(23):4389-4396.
APA Yin, Guoheng,Bi, Qingyuan,Zhao, Wei,Xu, Jijian,Lin, Tianquan,&Huang, Fuqiang.(2017).Efficient Conversion of CO2to Methane Photocatalyzed by Conductive Black Titania.ChemCatChem,9(23),4389-4396.
MLA Yin, Guoheng,et al."Efficient Conversion of CO2to Methane Photocatalyzed by Conductive Black Titania".ChemCatChem 9.23(2017):4389-4396.
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