Photothermal Conversion of CO sub(2) into CH sub(4) with H sub(2) over GroupVIII Nanocatalysts: An Alternative Approach for Solar Fuel Production

The photothermal conversion of CO sub(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 GroupVIII nanocatalysts, including effective energy utilization ove...

Full description

Saved in:
Bibliographic Details
Published in:Angewandte Chemie 2014-10, Vol.126 (43), p.11662-11666
Main Authors: Meng, Xianguang, Wang, Tao, Liu, Lequan, Ouyang, Shuxin, Li, Peng, Hu, Huilin, Kako, Tetsuya, Iwai, Hideo, Tanaka, Akihiro, Ye, Jinhua
Format: Article
Language:English
Subjects:
Alternative fuels
Carbon dioxide
Catalysis
Conversion
Fuel production
Nanostructure
Photoabsorption
Photothermal conversion
Utilization
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The photothermal conversion of CO sub(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 GroupVIII nanocatalysts, including effective energy utilization over the whole range of the solar spectrum, excellent photothermal performance, and unique activation abilities. Photothermal CO sub(2) reaction rates (molh super(-1)g super(-1)) that are several orders of magnitude larger than those obtained with photocatalytic methods ( mu molh super(-1)g super(-1)) were thus achieved. It is proposed that the overall water-based CO sub(2) conversion process can be achieved by combining light-driven H sub(2) production from water and photothermal CO sub(2) conversion with H sub(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.Original Abstract: Mit Licht erhitzt: Die photothermische Umwandlung von CO sub(2) zu CH sub(4) mit Nanokatalysatoren der GruppeVIII bietet eine Methode zur Herstellung von solaren Brennstoffen mit hoch effizienter Nutzung von Sonnenlicht. Fuer die Wasser-basierte Umwandlung von CO sub(2) kann die lichtinduzierte H sub(2)-Produktion mittels Wasserspaltung mit der photothermischen Umwandlung von CO sub(2) mit H sub(2) kombiniert werden.
ISSN:0044-8249
1521-3757
DOI:10.1002/ange.201404953