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Effect of Pt on Co3O4 reduction via electrical conductance method
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
2006-09-10
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
关键词[WOS]FISCHER-TROPSCH SYNTHESIS ; CO/AL2O3 CATALYSTS ; PERFORMANCE ; RU ; PROMOTERS ; PD
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.
语种英语
WOS记录号WOS:000240763400038
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被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/140233
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
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GB/T 7714
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.
APA Xu Dong-Yan,Duan Hong-Min,Li Wen-Zhao,Ge Qing-Jie,Yu Chun-Ying,&Xu Heng-Yong.(2006).Effect of Pt on Co3O4 reduction via electrical conductance method.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,27(9),1746-1748.
MLA Xu Dong-Yan,et al."Effect of Pt on Co3O4 reduction via electrical conductance method".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 27.9(2006):1746-1748.
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