caa a22 4500 463251776 CHVBK 20180405153342.0 cr unu---uuuuu 170326e20070701xx s 000 0 eng 10.1007/s10562-007-9093-x doi (NATIONALLICENCE)springer-10.1007/s10562-007-9093-x Fabrication of molybdenum carbide catalysts over multi-walled carbon nanotubes by carbothermal hydrogen reduction [Elektronische Daten] [Xiaoyun Li, Ding Ma, Limin Chen, Xinhe Bao] Molybdenum 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°C to 700°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°C. Moreover, as the support, modified MWCNTs exhibit better thermal resistances. The temperature (580°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. Springer Science+Business Media, LLC, 2007 molybdenum carbide nationallicence carbon nanotubes nationallicence surface oxygen groups nationallicence molybdenum oxyanion nationallicence methylcyclohexane dehydrogenation nationallicence Li Xiaoyun State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, P.O. Box 110, 116023, Dalian, P.R. China aut Ma Ding State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, P.O. Box 110, 116023, Dalian, P.R. China aut Chen Limin State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, P.O. Box 110, 116023, Dalian, P.R. China aut Bao Xinhe State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, P.O. Box 110, 116023, Dalian, P.R. China aut Catalysis Letters Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 116/1-2(2007-07-01), 63-69 1011-372X 116:1-2<63 2007 116 10562 https://doi.org/10.1007/s10562-007-9093-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10562-007-9093-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Li Xiaoyun State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, P.O. Box 110, 116023, Dalian, P.R. China aut NATIONALLICENCE 700 1- Ma Ding State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, P.O. Box 110, 116023, Dalian, P.R. China aut NATIONALLICENCE 700 1- Chen Limin State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, P.O. Box 110, 116023, Dalian, P.R. China aut NATIONALLICENCE 700 1- Bao Xinhe State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, P.O. Box 110, 116023, Dalian, P.R. China aut NATIONALLICENCE 773 0- Catalysis Letters Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 116/1-2(2007-07-01), 63-69 1011-372X 116:1-2<63 2007 116 10562 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer