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Influence of Step Temperature Elevating Decomposition on the Catalytic Activity of Non-supported Ni for Methane Decomposition
Zhang Wei1,2; Ge Qingjie1; Xu Hengyong1
关键词Methane Step Temperature Elevating Decomposition Non-supported Nickel Catalyst Decomposition Reactivity
刊名CHINESE JOURNAL OF CATALYSIS
2010-09-01
DOI10.3724/SPJ.1088.2010.00148
31期:9页:1162-1166
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
研究领域[WOS]Chemistry ; Engineering
关键词[WOS]REDUCTION TEMPERATURE ; HYDROGEN ; CARBON ; PERFORMANCE
英文摘要The non-supported Ni catalyst was prepared by calcination of the nickel hydroxide precipitate, originated from precipitation of nickel acetate with aqueous solution of sodium carbonate, rinsed with ethanol The influence of pretreatment conditions on Ni catalyst was investigated by means of X-ray diffraction, CH(4) temperature-programmed surface reaction, and CH(4) decomposition reactivity test The results showed that lowering the reduction temperature could reduce Ni particle size and correspondingly improve the catalytic activity of Ni catalyst for CH(4) decomposition The result of the catalytic activity test showed that reaction history was an important factor influencing the catalytic activity of the Ni catalyst for CH(4) decomposition at 500 degrees C The formation of relatively stable Ni particles could be realized by carrying out CH(4) decomposition stepwise at multiple reaction temperatures (multiple step temperature elevating decomposition), which could remarkably improve the catalytic activity and stability of the Ni catalyst for CH(4) decomposition The initial CH(4) conversion reached 8 40% at 500 degrees C by using the multiple step temperature elevating decomposition method, and the CH(4) conversion could further be increased to 11 20% within 120 min. whereas by the two step temperature elevating decomposition method, the maximum CH(4) conversion at 50 degrees C was only 1 61%
语种英语
WOS记录号WOS:000282671300013
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/141998
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
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GB/T 7714
Zhang Wei,Ge Qingjie,Xu Hengyong. Influence of Step Temperature Elevating Decomposition on the Catalytic Activity of Non-supported Ni for Methane Decomposition[J]. CHINESE JOURNAL OF CATALYSIS,2010,31(9):1162-1166.
APA Zhang Wei,Ge Qingjie,&Xu Hengyong.(2010).Influence of Step Temperature Elevating Decomposition on the Catalytic Activity of Non-supported Ni for Methane Decomposition.CHINESE JOURNAL OF CATALYSIS,31(9),1162-1166.
MLA Zhang Wei,et al."Influence of Step Temperature Elevating Decomposition on the Catalytic Activity of Non-supported Ni for Methane Decomposition".CHINESE JOURNAL OF CATALYSIS 31.9(2010):1162-1166.
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