Why Is Water More Reactive Than Hydrogen in Photocatalytic CO2 Conversion at Higher Pressures? Elucidation by Means of X-Ray Absorption Fine Structure and Gas Chromatography–Mass Spectrometry

Photocatalytic conversion of CO2 into mainly methane using Pd/TiO2 photocatalyst proceeded faster at 0.80 MPa using water rather than hydrogen as a reductant. The former reaction (CO2 + water) consists of two steps: first, water photosplitting and second, the latter reaction (CO2 + hydrogen). It was...

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Bibliographic Details
Main Authors: Hongwei Zhang, Yasuo Izumi
Format: Article
Language:English
Published: Frontiers Media S.A. 2018-09-01
Series:Frontiers in Chemistry
Subjects:
CO2
Online Access:https://www.frontiersin.org/article/10.3389/fchem.2018.00408/full