Results 201 to 210 of about 81,441 (241)

Engineering WO₃ Nanostructures via Carboxylic Acid Anodization for Advanced Lithium-Ion Battery Anodes. [PDF]

Materials (Basel)
Da Silva E, Estarelles Nácher J, Sanchis R, González V, Roselló-Márquez G, Fernández-Domene RM, Sánchez-Tovar R, Solsona B.   +7 more
europepmc   +1 more source

Achieving Phase Control of Polymorphic Tungsten Carbide Catalysts. [PDF]

ACS Catal
Perera SMHD, Ciuffetelli E, Porosoff MD.
europepmc   +1 more source

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Tungsten toxicity

Chemico-Biological Interactions, 2012
There is emerging evidence that tungsten has toxic health effects. We summarize the recent tungsten toxicity research in this short review. Tungsten is widely used in many commercial and military applications because it has the second highest melting temperature of any element.
Mark L, Witten, Paul R, Sheppard, Brandon L, Witten   +2 more
openaire   +2 more sources

Tungsten Oxide Nanowires on Tungsten Substrates

Nano Letters, 2002
A simple method was discovered to prepare tungsten oxide nanowires directly from tungsten metal. The structure and composition of the nanowires were characterized by high resolution tunneling electron microscopy (HRTEM) and energy dispersive X-ray scattering (EDX), respectively.
Gu, G., Zheng, B., Han, W., Roth, S., Liu, J.   +4 more
openaire   +2 more sources

Tungsten(VI) and Tungsten(V) Fluoride Complexes

Chemistry – A European Journal, 2009
AbstractWF6 reacts with phosphines R3P forming 1:1 compounds. With R=P(CH3)3 the coordination around the tungsten atom is capped trigonal prismatic, with R=P(CH3)2C6H5 the coordination is capped octahedral, as established by single‐crystal structure determinations: [(CH3)3PWF6]: a=752.5(21), b=945.7(24), c=629.8(18) pm.
Said, El-Kurdi, Abdal-Azim, Al-Terkawi, Bernd M, Schmidt, Anton, Dimitrov, Konrad, Seppelt   +4 more
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Electrochemical preparation of tungsten, tungsten carbide and cemented tungsten carbide

Mineral Processing and Extractive Metallurgy, 2013
Tungsten is conventionally made by the reduction of tungsten oxide with hydrogen, tungsten carbide by the reaction of tungsten with carbon and cemented tungsten carbide by the sintering together of tungsten carbide with a metal, usually cobalt. This paper reports the electrochemical preparation of tungsten, tungsten carbide and cemented tungsten ...
D.-H. Tran-Nguyen, D. Jewell, D. J. Fray
openaire   +1 more source

Tungsten and Tungsten Alloy Products

1999
Besides tungsten metal, only those alloys which were described in Chapter 6 are treated in this chapter. Alloys produced by melting metallurgy as well as the cemented carbides hardmetals) and their application are treated in Chapters 8 and 9, respectively.
Erik Lassner, Wolf-Dieter Schubert
openaire   +1 more source