Search results for "Nickel tungsten"

showing 2 items of 2 documents

CCDC 768266: Experimental Crystal Structure Determination

2012

Related Article: Xin Xiong Li, Shou-Tian Zheng, Jie Zhang, Wei-Hui Fang, Guo-Yu Yang, J.M.Clemente-Juan|2011|Chem.-Eur.J.|17|13032|doi:10.1002/chem.201101496

Space GroupCrystallographyCrystal Systemcatena-(12-diaminopropane phosphate germanate nickel tungsten hydrate)Crystal StructureCell ParametersExperimental 3D Coordinates
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Oxidative dehydrogenation of ethane: A study over the structure and robustness of Ni–W–O catalysts

2014

[EN] The robustness of one selected Ni-W-O catalyst has been studied in the oxidative dehydrogenation of ethane. This catalyst initially deactivates for the first 10 h online decreasing 15% of its catalytic activity compared to its initial stable catalytic activity. However from 10 to 60 h online the catalytic activity keeps almost stable. On the other hand, it has been shown that the Ni-W-O catalyst cannot tolerate an oxygen-free atmosphere (C-2 and He) as nickel oxide is transformed into metallic nickel. Methane and hydrogen as well as abundant coke were formed on the surface of the catalyst in these O-free conditions. However a re-calcination in air leads to the removal of coke, the cata…

inorganic chemicalsEthyleneHydrogenGeneral Chemical EngineeringCatalyst supportInorganic chemistryEnergy Engineering and Power Technologychemistry.chemical_elementCatalysisMethaneCatalysisEthylenechemistry.chemical_compoundDehydrogenationNickel tungstenOxidative dehydrogenation of ethaneOxide catalystsEthaneChemistryorganic chemicalsNickel oxideCokeFuel TechnologyNi-W-OHydrogenOxidative dehydrogenationFuel Processing Technology
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