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题名: Mechanistic studies of methane partial oxidation to syngas over LiNiLaOx/Al2O3 catalyst
作者: Miao, Q;  Xiong, GX;  Liu, SL;  Sheng, SS;  Zhang, YH
关键词: methane partial oxidation ;  pulse reaction ;  reaction mechanism ;  LiNiLaOx/Al2O3 catalyst
刊名: REACTION KINETICS AND CATALYSIS LETTERS
发表日期: 1999-03-01
卷: 66, 期:2, 页:273-279
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: Temperature-programmed reduction (TPR) characterization of the LiNiLaOx/Al2O3 catalyst before or after partial oxidation of methane (POM) reaction and a series of O-2, CH4 and CH4/O-2 pulse reaction experiments over the catalyst under different pretreatments were performed. It was found that CH4 dissociatively adsorbs on active center nickel producing H-2 and surface carbon, C(a). The surface carbon reacts with surface lattice oxygen or surface adsorbed oxygen to produce CO. Because the activation barrier for the reaction C(a)+ O(a) =CO(a) is the highest among all the elementary reactions, the rate-determining step of the POM may be the reaction C(a) + O(a) =CO(a).
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000079504700012
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/86615
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Miao, Q,Xiong, GX,Liu, SL,et al. Mechanistic studies of methane partial oxidation to syngas over LiNiLaOx/Al2O3 catalyst[J]. REACTION KINETICS AND CATALYSIS LETTERS,1999,66(2):273-279.
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