Probing a Redox Behavior of TiO(2)/SBA-15 Supported V(x)O(y) Catalyst Using an Electron Beam in a 200 kV Transmission Electron Microscope

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	Probing a Redox Behavior of TiO(2)/SBA-15 Supported V(x)O(y) Catalyst Using an Electron Beam in a 200 kV Transmission Electron Microscope
	W. Zhang; B. S. Zhang; T. Wolfram; L. D. Shao; R. Schlogl; D. S. Su
	2011
发表期刊	Journal of Physical Chemistry C
ISSN	1932-7447
卷号	115 期号:42 页码:20550-20554
摘要	Supported vanadium oxides are becoming the model catalysts for. numerous selective oxidation reactions. To exploit redox chemistry of well-known titania-supported vanadia is currently one of the most fascinating topics. Herein, by applying in situ electron energy-loss spectroscopy, we succeeded in stimulating a new redox reaction in a routine transmission electron microscope; the electron beam can boost further oxidation from an amorphous lower-oxidation-state vanadia to maximal V(2)O(5) with an expense of oxygen from its support of TiO(2) to be reduced. Our findings could be extended into a new strategy: through utilizing an electron beam, and probing the redox chemistry between catalysts and their support in a wide class of heterogeneous catalyst systems, such as various oxide/oxide, metal/oxide, and oxide/metal catalysts.
部门归属	[zhang, wei; zhang, bingsen; wolfram, till; shao, lidong; schloegl, robert; su, dang sheng] max planck soc, fritz haber inst, dept inorgan chem, d-14195 berlin, germany. [su, dang sheng] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china.;su, ds (reprint author), max planck soc, fritz haber inst, dept inorgan chem, faradayweg 4-6, d-14195 berlin, germany;dangsheng@fhi-berlin.mpg.de
关键词	Energy-loss Spectroscopy Divanadium Pentoxide V2o5 Vanadium-oxide Oxidative Dehydrogenation Selective Oxidation Thin-films Heterogeneous Catalysts Induced Deposition Transition-metals Mesoporous Silica
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/30920
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. Zhang,B. S. Zhang,T. Wolfram,et al. Probing a Redox Behavior of TiO(2)/SBA-15 Supported V(x)O(y) Catalyst Using an Electron Beam in a 200 kV Transmission Electron Microscope[J]. Journal of Physical Chemistry C,2011,115(42):20550-20554.
APA	W. Zhang,B. S. Zhang,T. Wolfram,L. D. Shao,R. Schlogl,&D. S. Su.(2011).Probing a Redox Behavior of TiO(2)/SBA-15 Supported V(x)O(y) Catalyst Using an Electron Beam in a 200 kV Transmission Electron Microscope.Journal of Physical Chemistry C,115(42),20550-20554.
MLA	W. Zhang,et al."Probing a Redox Behavior of TiO(2)/SBA-15 Supported V(x)O(y) Catalyst Using an Electron Beam in a 200 kV Transmission Electron Microscope".Journal of Physical Chemistry C 115.42(2011):20550-20554.