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学科主题: 物理化学
题名: Influences of reaction conditions on methane decomposition over non-supported Ni catalyst
作者: Zhang, Wei1, 2;  Ge, Qingjie1;  Xu, Hengyong1
通讯作者: 葛庆杰 ;  徐恒泳
关键词: precipitate rinsing solvent ;  NiO morphology ;  non-supported Ni ;  methane decomposition
刊名: JOURNAL OF NATURAL GAS CHEMISTRY
发表日期: 2011-07-01
DOI: 10.1016/S1003-9953(10)60205-8
卷: 20, 期:4, 页:339-344
收录类别: SCI
文章类型: Article
部门归属: 8
项目归属: 801
产权排名: 1,1
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Energy & Fuels ;  Engineering, Chemical
摘要: Influences of reaction conditions on methane decomposition over non-supported Ni catalyst
研究领域[WOS]: Chemistry ;  Energy & Fuels ;  Engineering
英文摘要: Effects of reaction temperature and methane gas hourly space velocity (GHSV) on methane decomposition over non-supported Ni catalyst have been investigated in this work. Methane molecules activation, Ni particles growth and nano-carbon diffusion were the main factors influencing methane decomposition stability of non-supported Ni. The results of methane decomposition activity test on the non-supported Ni catalyst showed that the prepared non-supported Ni could exhibit a good methane decomposition performance with 273 g(C)/g(Ni) and 2667 mol(H2)/mol(Ni) at 500 degrees C and 45000 mL/(g(cat).h). Scanning electron microscope (SEM), X-ray powder diffraction (XRD) and temperature-programmed oxidation (TPO) have been carried out to characterize the used catalysts. The deposited carbon was carbon nanofibers, among which graphitic carbon formation increased with the reaction time of methane decomposition. Ni particle size was not the decisive factor during the carbon growing stage.
关键词[WOS]: CARBON NANOFIBERS ;  FILAMENTOUS CARBON ;  HYDROGEN STORAGE ;  PRODUCE HYDROGEN ;  NICKEL-CATALYSTS ;  CH4 ;  NANOTUBES ;  OXIDE ;  H-2 ;  HYDROCARBONS
语种: 英语
WOS记录号: WOS:000293939600001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/115248
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, Lab Appl Catalysis, Dalian 116023, Peoples R China
2.NE Petr Univ, Chem & Chem Engn Sch, Daqing 163318, Heilongjiang, Peoples R China

Recommended Citation:
Zhang, Wei,Ge, Qingjie,Xu, Hengyong. Influences of reaction conditions on methane decomposition over non-supported Ni catalyst[J]. JOURNAL OF NATURAL GAS CHEMISTRY,2011,20(4):339-344.
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