Selective transformation of carbon dioxide into lower olefins with a bifunctional catalyst composed of ZnGa2O4 and SAPO-34

A bifunctional catalyst composed of ZnGa2O4 with a spinel structure and molecular sieve SAPO-34 catalyses the direct conversion of CO2 to C2–C4 olefins with a selectivity of 86% and a CO2 conversion of 13% at 370 °C. The oxygen vacancies on ZnGa2O4 surfaces are responsible for CO2 activation, formin...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2018-01, Vol.54 (2), p.140-143
Main Authors: Liu, Xiaoliang, Wang, Mengheng, Zhou, Cheng, Zhou, Wei, Kang, Cheng, Kang, Jincan, Zhang, Qinghong, Deng, Weiping, Wang, Ye
Format: Article
Language:English
Subjects:
Alkenes
Carbon dioxide
Catalysis
Catalysts
Direct conversion
Molecular sieves
Molecular structure
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Summary:A bifunctional catalyst composed of ZnGa2O4 with a spinel structure and molecular sieve SAPO-34 catalyses the direct conversion of CO2 to C2–C4 olefins with a selectivity of 86% and a CO2 conversion of 13% at 370 °C. The oxygen vacancies on ZnGa2O4 surfaces are responsible for CO2 activation, forming a methanol intermediate, which is then converted into C2–C4 olefins in SAPO-34.
ISSN:1359-7345
1364-548X
DOI:10.1039/c7cc08642c