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题名: Effect of Pt on Co3O4 reduction via electrical conductance method
作者: Xu Dong-Yan;  Duan Hong-Min;  Li Wen-Zhao;  Ge Qing-Jie;  Yu Chun-Ying;  Xu Heng-Yong
关键词: noble metal ;  platinum ;  Co3O4 ;  reduction ;  electrical conductance
刊名: CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
发表日期: 2006-09-10
卷: 27, 期:9, 页:1746-1748
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: The reduction features of Co3O4 and Pt/Co3O4 were studied by electrical conductivity in this paper. Combined with the TPR results, it is concluded that the presence of noble metal Pt could significantly decrease the reduction temperature of Co3O4. In addition, the electrical conductanc ratios of Co3O4 and Pt/Co3O4 under different atmospheres, which are in a consecutively changing sequence of hydrogen, oxygen and syngas, were also investigated. It is found that the cobalt oxides resulted from the oxidation of Co metal under oxygen atmosphere can be re-reduced by the syngas in the presence of Pt noble metal. Because the electrical conductance study was conducted at 493 K, which is close to the typical reaction temperature of Fischer-Tropsch synthesis with cobalt based catalysts. It is reasonably speculated that the presence of Pt is beneficial to inhibiting the oxidation of cobalt metal during the Fischer-Tropsch synthesis, and thus eliminating the deactivation of cobalt catalyst.
关键词[WOS]: FISCHER-TROPSCH SYNTHESIS ;  CO/AL2O3 CATALYSTS ;  PERFORMANCE ;  RU ;  PROMOTERS ;  PD
语种: 英语
WOS记录号: WOS:000240763400038
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140233
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, Dalian 116023, Peoples R China

Recommended Citation:
Xu Dong-Yan,Duan Hong-Min,Li Wen-Zhao,et al. Effect of Pt on Co3O4 reduction via electrical conductance method[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2006,27(9):1746-1748.
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