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Fabrication of molybdenum carbide catalysts over multi-walled carbon nanotubes by carbothermal hydrogen reduction
Li, Xiaoyun; Ma, Ding; Chen, Limin; Bao, Xinhe
KeywordMolybdenum Carbide Carbon Nanotubes Surface Oxygen Groups Molybdenum Oxyanion Methylcyclohexane Dehydrogenation
Source PublicationCATALYSIS LETTERS
2007-07-01
DOI10.1007/s10562-007-9093-x
Volume116Issue:1-2Pages:63-69
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Physical
WOS Research AreaChemistry
WOS KeywordACTIVATED CARBON ; SURFACE-PROPERTIES ; SYNTHESIS GAS ; N-BUTANE ; SUPPORT ; ADSORPTION ; METHANE ; MO2C ; HYDRODENITROGENATION ; CONVERSION
AbstractMolybdenum carbide catalysts were successfully prepared using original multi-walled carbon nanotubes (MWCNTs) and nitric acid treated ones as support and carbon source by carbothermal hydrogen reduction from 580 degrees C to 700 degrees C. Ammonium heptamolybdate was used as Mo precursor and the effects of oxygen functional groups on MWCNT surface were investigated. TEM and XRD results show that oxygen functional groups act as anchor sites to interact with the Mo oxyanion species during impregnation, which promote the dispersion of Mo precursors. Due to the relatively strong interaction between Mo precursors and MWCNTs, the agglomeration of Mo carbide particles is prevented even when the treatment temperature is as high as 700 degrees C. Moreover, as the support, modified MWCNTs exhibit better thermal resistances. The temperature (580 degrees C) for Mo2C formation over MWCNTs is much lower than that over conventional carbon supports using carbothermal hydrogen reduction. The methylcyclohexane dehydrogenation was used as a probe reaction to test the catalytic performances of the Mo2C catalysts obtained.
Language英语
WOS IDWOS:000247932300011
Citation statistics
Cited Times:53[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/140568
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
Li, Xiaoyun,Ma, Ding,Chen, Limin,et al. Fabrication of molybdenum carbide catalysts over multi-walled carbon nanotubes by carbothermal hydrogen reduction[J]. CATALYSIS LETTERS,2007,116(1-2):63-69.
APA Li, Xiaoyun,Ma, Ding,Chen, Limin,&Bao, Xinhe.(2007).Fabrication of molybdenum carbide catalysts over multi-walled carbon nanotubes by carbothermal hydrogen reduction.CATALYSIS LETTERS,116(1-2),63-69.
MLA Li, Xiaoyun,et al."Fabrication of molybdenum carbide catalysts over multi-walled carbon nanotubes by carbothermal hydrogen reduction".CATALYSIS LETTERS 116.1-2(2007):63-69.
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