Hydrogen Production By Splitting Water On Solid Acid Materials By Thermal Dissociation

Title
Hydrogen Production By Splitting Water On Solid Acid Materials By Thermal Dissociation
Authors
조영상김주희
Keywords
수소 생산; 물 분해; 고체산; 물 분해 메카니즘; Hydrogen production; Water splitting; Water splitting mechanism on solid acid
Issue Date
2011-07
Publisher
International journal of hydrogen energy
Citation
VOL 36, NO 14, 8192-8202
Abstract
Conventionally, there have been three basic ways of research on H2 production from H2Osplitting with solar energy: photo-catalytic, photo-electrochemical and thermochemical. Among them the thermal dissociation of H2O has been considered the most efficient, because it is a single step energy conversion process and gives much higher conversion efficiency than those resulted from other methods. However, the major stumbling block of thermal dissociation of H2O has been the requirement of a high dissociation temperature which causes problems both with materials for the reactor and with energy conversion efficiency for the process. In this study, we show that the dissociation temperature can be drastically lowered when H2O is thermally dissociated on solid acid materials. A probable mechanism of the thermal H2O-splitting on solid acid materials is also presented, based on some experimental results of this study and reports in the literature.
URI
http://pubs.kist.re.kr/handle/201004/39932
ISSN
0360-3199
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KIST Publication > Article
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