Hydrogen production from non-stationary catalytic cracking of methane:: a mechanistic study using in operando infrared spectroscopy

被引：0
|
作者：
Odier, E
Schuurman, Y
Barral, K
Mirodatos, C
机构：
[1] Inst Rech Catalyse, F-69626 Villeurbanne, France
[2] Air Liquide, Ctr Rech Claude Delorme, F-78353 Jouy En Josas, France
来源：
NATURAL GAS CONVERSION VII | 2004年 / 147卷
关键词：
D O I：
暂无
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
The cyclic two-step process of methane cracking was investigated over Pt/CeO2 catalyst at 400degreesC by in operando DRIFT spectroscopy. The production of H-2 by direct decomposition of CH4 on the noble metal is improved by the capacity of the cerium oxide to store carbonaceous surface species. The 2D-IR correlation analysis shows that formates adspecies are formed from carbonyls diffusing from Pt sites and reacting with hydroxyls on partially reduced Cc sites. The comparison with other catalysts indicates that formates are the most suitable adspecies for an efficient reversible C storage during the H-2 production cycle.
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页码：79 / 84
页数：6
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