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On the nature and structure of new MoVTeO and MoVTeNbO crystalline phases

  • E. García-González (a1), J. M. López Nieto (a2), P. Botella (a2), B. Solsona (a2) and J.M. González-Calbet (a1)...

Abstract

New TeMoV and TeMo(V,Nb) bronze type phases have been obtained during the heat-treatment (600° C in N2) of the corresponding precursor mixture. Both mixed oxides seem to be structurally related to one of the crystalline phases proposed in Mo-V-Te-Nb-O catalysts. Chemical and microstructural characterization revealed the formation of an orthorhombically distorted cell deriving from a bronze type HTB structure, which does not behave as a bronze type structure in the chemical sense. Microstructural details responsible for the new unit cell are discussed in terms of tellurium location inside the hexagonal tunnels and based on the structural model proposed.

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On the nature and structure of new MoVTeO and MoVTeNbO crystalline phases

  • E. García-González (a1), J. M. López Nieto (a2), P. Botella (a2), B. Solsona (a2) and J.M. González-Calbet (a1)...

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