Pulse Microcalorimetry Study of Methane Dry Reforming Reaction on Ni/Ceria-Zirconia Catalyst

被引：13
|
作者：
Simonov, Mikhail N. [1 ,2 ]
Rogov, Vladimir A. [1 ,2 ]
Smirnova, Marina Yu. [1 ,2 ]
Sadykov, Vladislav A. [1 ,2 ]
机构：
[1] Boreskov Inst Catalysis, Prospekt Akad Lavrentieva 5, Novosibirsk 630090, Russia
[2] Novosibirsk State Univ, Pirogova St 2, Novosibirsk 630090, Russia
来源：
CATALYSTS | 2017年 / 7卷 / 09期
关键词：
synthesis in supercritical alcohol; ceria-zirconia; pulse microcalorimetry; methane dry reforming; mechanism; CARBON-DIOXIDE; MECHANISM; SURFACE; CO; OXIDATION; TRANSIENT; KINETICS; STATE;
D O I：
10.3390/catal7090268
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
For Ni/CeZrO catalyst prepared in supercritical isopropanol main features of methane dry reforming reaction mechanism were studied by the pulse microcalorimetric technique. The reaction scheme is described by a step-wise redox mechanism with independent stages of CH4 transformation on Ni/support interface producing syngas with participation of support oxygen bridging species (the rate-limiting stage) and fast reoxidation of support sites by CO2 yielding CO regenerating reactive oxygen species.
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页数：11
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