CMK-5 mesoporous carbon synthesized via chemical vapor deposition of ferrocene as catalyst support for methanol oxidation

	CMK-5 mesoporous carbon synthesized via chemical vapor deposition of ferrocene as catalyst support for methanol oxidation
	Lei, Zhibin 1; Bai, Shiying 1; Xiao, Yi 1; Dang, Liqin 1; An, Lizhen 1; Zhang, Guangning 1; Xu, Qian 2
刊名	journal of physical chemistry c
	2008-01-24
卷号	112 期号:3 页码:722-731
英文摘要	a novel and effective method was described in this work to prepare two-dimensional hexagonally ordered mesoporous cmk-5 carbon materials. this method is based on the chemical vapor deposition (cvd) of ferrocene in the mesopores of sba-15 at 500 degrees c, followed by graphitization at different temperatures. both the silica/carbon composite and the resulting cmk-5 were characterized by n-2 adsorption, powder x-ray diffraction, raman spectroscopy, transmission electron microscopy, high-resolution transmission electron microscopy (hrtem), and thermogravimetric analysis. it was found that the ferrocene could be used as a new precursor to prepare cmk-5 nanopipes, with pipe thicknesses varying from 0.8 to 2.6 nm, by increasing the cvd time from 20 to 120 min. the resulting cmk-5 exhibits high brunauer-emmett-teller (bet) surface area (1044-2449 m(2)/g) and large pore volume (1.13-2.20 cm(3)/g). the graphitization degree of the resulting cmk-5 was investigated by pyrolyzing the corresponding silica/carbon composite at different temperatures. pyrolysis temperatures below 850 degrees c led to gradually improved graphitization degrees of cmk-5 nanopipes. pyrolysis temperatures above 850 degrees c resulted in the partial collapse of ordered cmk-5 nanopipes accompanied by the appearance of a considerable amount of entangled graphitic ribbons. the structural evolution process of cmk-5 from ordered nanopipes to the final entangled graphitic ribbons was observed by hrtem. the obtained cmk-5 was applied as a catalyst support of pt for methanol oxidation. the electrochemical activities of pt nanoparticles loaded on the cmk-5 carbon materials were investigated by cyclic voltammograms and compared with the commercial pt/vulcan xc-72 catalyst. it was found that the specific mass activity of pt/cmk-5 was much higher than pt/vulcan xc-72.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	chemistry, physical ; nanoscience & nanotechnology ; materials science, multidisciplinary
研究领域[WOS]	chemistry ; science & technology - other topics ; materials science
关键词[WOS]	high-surface-area ; graphitic pore walls ; hydrogen storage ; fuel-cell ; nanoporous carbons ; ptru nanoparticles ; silica templates ; nanotubes ; pyrolysis ; precursor
收录类别	SCI
语种	英语
WOS记录号	WOS:000252484000012
公开日期	2015-11-17
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/140979]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Liaoning Normal Univ, Fac Chem & Chem Engn, Inst Chem Functionalized Mat, Dalian 116029, Liaoning, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Lei, Zhibin,Bai, Shiying,Xiao, Yi,et al. CMK-5 mesoporous carbon synthesized via chemical vapor deposition of ferrocene as catalyst support for methanol oxidation[J]. journal of physical chemistry c,2008,112(3):722-731.
APA	Lei, Zhibin.,Bai, Shiying.,Xiao, Yi.,Dang, Liqin.,An, Lizhen.,...&Xu, Qian.(2008).CMK-5 mesoporous carbon synthesized via chemical vapor deposition of ferrocene as catalyst support for methanol oxidation.journal of physical chemistry c,112(3),722-731.
MLA	Lei, Zhibin,et al."CMK-5 mesoporous carbon synthesized via chemical vapor deposition of ferrocene as catalyst support for methanol oxidation".journal of physical chemistry c 112.3(2008):722-731.