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Photothermal Conversion of CO 2 into CH 4 with H 2 over Group VIII Nanocatalysts: An Alternative Approach for Solar Fuel Production
Author(s) -
Meng Xianguang,
Wang Tao,
Liu Lequan,
Ouyang Shuxin,
Li Peng,
Hu Huilin,
Kako Tetsuya,
Iwai Hideo,
Tanaka Akihiro,
Ye Jinhua
Publication year - 2014
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201404953
Subject(s) - photothermal therapy , nanomaterial based catalyst , materials science , solar fuel , solar energy , photothermal effect , energy conversion efficiency , nanotechnology , catalysis , photocatalysis , chemistry , optoelectronics , nanoparticle , biology , ecology , biochemistry
The photothermal conversion of CO 2 provides a straightforward and effective method for the highly efficient production of solar fuels with high solar‐light utilization efficiency. This is due to several crucial features of the Group VIII nanocatalysts, including effective energy utilization over the whole range of the solar spectrum, excellent photothermal performance, and unique activation abilities. Photothermal CO 2 reaction rates (mol h −1 g −1 ) that are several orders of magnitude larger than those obtained with photocatalytic methods (μmol h −1 g −1 ) were thus achieved. It is proposed that the overall water‐based CO 2 conversion process can be achieved by combining light‐driven H 2 production from water and photothermal CO 2 conversion with H 2 . More generally, this work suggests that traditional catalysts that are characterized by intense photoabsorption will find new applications in photo‐induced green‐chemistry processes.