DICP OpenIR
Activated carbon supported bimetallic CoMo carbides synthesized by carbothermal hydrogen reduction
Liang, CH; Ma, WP; Feng, ZC; Li, C
KeywordActivated Carbon Heat Treatment Impregnation Mass Spectrometry X-ray Diffraction
Source PublicationCARBON
2003
DOI10.1016/S0008-6223(03)00169-6
Volume41Issue:9Pages:1833-1839
Indexed BySCI
SubtypeArticle
Department503
Funding Project503
Contribution Rank1;1
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary
WOS Research AreaChemistry ; Materials Science
WOS KeywordTRANSITION-METAL CARBIDES ; SURFACE-AREA ; CATALYTIC PROPERTIES ; SILICON-CARBIDE ; MOLYBDENUM ; TUNGSTEN ; BULK
AbstractA carbothermal hydrogen reduction method was employed for the preparation of activated carbon supported bimetallic carbide. The resultant samples were characterized by BET surface area measurement, X-ray diffraction, and temperature-programmed reduction-mass spectroscopy. The results showed that nanostructured beta-Mo2C can be formed on the activated carbon by carbothermal hydrogen reduction above 700 degreesC. The particle sizes of beta-Mo2C increase with increasing reaction temperatures and Mo loading. The bimetallic CoMo carbide can be synthesized by the carbothermal hydrogen reduction even around 600 degreesC. The bimetallic CoMo carbide is from carbothermal hydrogen reduction of CoMoO4 precursor and is easily formed when the Co/Mo molar ratio is 1.0. Separation of the bimetallic CoMo carbide phase into Mo carbide and Co metal occurs when the temperature of the reduction is above 700 degreesC. The addition of a second metal such as Co and Ni, decreases the formation temperature of carbide because the second metal promotes formation of CHx species from reactive carbon atoms or groups on carbon material and hydrogen, which further carburizes oxide precursors. (C) 2003 Elsevier Science Ltd. All rights reserved.
Language英语
URL查看原文
WOS IDWOS:000183818100016
Citation statistics
Cited Times:60[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/82903
Collection中国科学院大连化学物理研究所
AffiliationChinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Liang, CH,Ma, WP,Feng, ZC,et al. Activated carbon supported bimetallic CoMo carbides synthesized by carbothermal hydrogen reduction[J]. CARBON,2003,41(9):1833-1839.
APA Liang, CH,Ma, WP,Feng, ZC,&Li, C.(2003).Activated carbon supported bimetallic CoMo carbides synthesized by carbothermal hydrogen reduction.CARBON,41(9),1833-1839.
MLA Liang, CH,et al."Activated carbon supported bimetallic CoMo carbides synthesized by carbothermal hydrogen reduction".CARBON 41.9(2003):1833-1839.
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