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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
KeywordNoble Metal Platinum Co3o4 Reduction Electrical Conductance
Source PublicationCHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
2006-09-10
Volume27Issue:9Pages:1746-1748
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Multidisciplinary
WOS Research AreaChemistry
WOS KeywordFISCHER-TROPSCH SYNTHESIS ; CO/AL2O3 CATALYSTS ; PERFORMANCE ; RU ; PROMOTERS ; PD
AbstractThe 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.
Language英语
WOS IDWOS:000240763400038
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/140233
Collection中国科学院大连化学物理研究所
AffiliationChinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
Recommended Citation
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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