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Author:: S. P. A. Louwers R. Prins
Journal:: Japanese Journal of Applied Physics
Issue Date:: 2014
Abstract(summary):: W L_III EXAFS of WS₂/C and Ni-WS₂/C catalysts showed that the WS₂/C catalyst contains small WS₂ particles of about 7 W atoms, while the Ni-WS₂/C catalyst contains larger particles. Ni K EXAFS demonstrated that the Ni atoms were present at the edges of the WS₂ particles in a Ni-W-S like structure, like the Ni-Mo-S structure in Ni-MoS₂/C catalysts. In the Ni-WS₂/C catalysts Ni is, however, coordinated by six sulphur atoms, four at 2.22 Å and two at 2.35 Å from the Ni atom.
Page:: 457

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