Results 221 to 230 of about 13,485 (259)

Anodic Deposition of Vanadium Oxides for Thermal-Induced Growth of Vanadium Oxide Nanowires

Journal of The Electrochemical Society, 2009
Hydrous vanadium oxides (denoted hereafter as VO x ·yH 2 O) were prepared by anodic deposition from an aqueous solution containing VOS0 4 and H 2 O 2 . X-ray photoelectron spectroscopic analyses demonstrated that the valence of vanadium in the deposits was mixed pentavalent and tetravalent.
Chi-Chang Hu, Kuo-Hsin Chang, Chao-Ming Huang, Jing-Mei Li   +3 more
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Oxidation by Vanadium Compounds

1986
According to IUPAC recommendations the abbreviation Va(V) is used to indicate pentavalent vanadium.
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Redox-Active Nanotubes of Vanadium Oxide

Angewandte Chemie International Edition, 1998
Unlike many small carbon nanotubes, VOx nanotubes (shown on the right) are obtained as the main product of a direct chemical synthesis at relatively low temperatures. The multiwalled material contains template molecules between the individual shells, which by a simple cation exchange can be removed without destruction of the tubes.
Spahr ME, Bitterli P, Nesper R, Müller M, Krumeich F, Nissen HU   +5 more
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Vanadium-Catalyzed Oxidation in Ionic Liquids

2007
Among the various interesting features of vanadium(V) there is its ability to activate hydrogen peroxide in diverse oxidation reactions. In this respect, we proposed a simple and effective procedure for oxybromination of unsaturated substrates in a biphasic system H2O/CH2Cl2.
CONTE, VALERIA, Floris, B, Silvagni, A.
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Vanadium(V) as an oxidant for thiol compounds

Talanta, 1977
Vanadium(V) is shown to oxidize a number of thiol compounds to the corresponding disulphides. A photometric procedure for the estimation of vanadium(V) in the presence of vanadium (IV) and diverse ions is described. A reinvestigation of the reaction of se(IV) in 4-8M hydrochloric acid with thiosalicylic acid confirms that the Se(IV) acts purely as an ...
R S, Ramakrishna, M, Williams
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Temperature-Programmed Sulfiding of Vanadium Oxides and Alumina-Supported Vanadium Oxide Catalysts

Journal of Catalysis, 1995
Sulfiding of bulk and alumina-supported vanadium oxides has been studied using temperature-programmed sulfiding and reduction techniques. Bulk compounds (V{sub 2}O{sub 5}, V{sub 2}O{sub 3}) and V/Al{sub 2}O{sub 3} catalysts are sulfided via a similar mechanism. For bulk V{sub 2}O{sub 5}, two major sulfiding steps have been identified.
R.L.C. Bonne, A.D. Vanlangeveld, J.A. Moulijn   +2 more
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Optical Properties of Vanadium Oxide Nanotubes

Journal of Nanoscience and Nanotechnology, 2004
The optical properties of vanadium oxide nanotube dispersions have been characterized using visible and near infrared absorption spectroscopy, Fourier transform infrared spectroscopy, Raman spectroscopy, and nonlinear transmission of optical intensities in the visible and near infrared.
S, Webster, R, Czerw, R, Nesper, J, DiMaio, J F, Xu, J, Ballato, D L, Carroll   +6 more
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ACTION OF VANADIUM ON TISSUE OXIDATIONS

Science, 1938
F, Bernheim, M L, Bernheim
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Vanadium Oxides as Oxidation Catalysts

Industrial & Engineering Chemistry, 1955
G. L. Simard, J. F. Steger, R. J. Arnott, L. A. Siegel   +3 more
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The Reduction of Silver Vanadium Oxide in Lithium/Silver Vanadium Oxide Cells

Journal of The Electrochemical Society, 1988
Esther Sans Takeuchi, William C. Thiebolt   +1 more
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