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A Novel Photo‐thermochemical Approach for Enhanced Carbon Dioxide Reforming of Methane
Author(s) -
Pan Fuping,
Xiang Xianmei,
Deng Wei,
Zhao Huilei,
Feng Xuhui,
Li Ying
Publication year - 2018
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201701565
Subject(s) - photocatalysis , methane , catalysis , syngas , irradiation , carbon dioxide reforming , carbon dioxide , chemical engineering , materials science , carbon fibers , chemistry , photochemistry , organic chemistry , composite material , physics , composite number , nuclear physics , engineering
We report a new approach for photo‐thermochemical CO 2 (dry) reforming of methane (PTC‐DRM) to produce syngas by using concentrated sunlight as the energy input. A unique catalyst, Pt‐supported Si‐modified CeO 2 , was designed for this novel PTC‐DRM reaction by integrating photocatalytic and thermocatalytic effects, for which Pt was the thermocatalytic DRM catalyst and co‐catalyst for photocatalysis, CeO 2 was the DRM support and semiconductor photocatalyst, and Si was the promoter and stabilizer. Under irradiation of the equivalent of 30 suns at 600 °C in 30 h, the production rates of H 2 and CO reached stable levels of 90 and 154 mmol g −1 h −1 , respectively, which were five and two times higher than those obtained in the dark at the same temperature. The significantly enhanced catalytic performance and stability under solar irradiation, resulting from synergy between the photocatalytic and thermocatalytic effects, demonstrates the feasibility of a new direction in low‐carbon fuel production from sunlight.