Botella Asuncion, P.; Solsona Espriu, BE.; López Nieto, JM.; Concepción Heydorn, P.; Jorda Moret, JL.; Domenech Carbo, MT. (2010). Mo-W-containing tetragonal tungsten bronzes through isomorphic substitution of molybdenum by tungsten. Catalysis Today. 158:162-169. https://doi.org/10.1016/j.cattod.2010.05.024
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/65296
Title:
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Mo-W-containing tetragonal tungsten bronzes through isomorphic substitution of molybdenum by tungsten
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Author:
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Botella Asuncion, Pablo
Solsona Espriu, Benjamin Eduardo
López Nieto, José Manuel
Concepción Heydorn, Patricia
Jorda Moret, Jose Luis
Domenech Carbo, Mª Teresa
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UPV Unit:
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Universitat Politècnica de València. Instituto Universitario Mixto de Tecnología Química - Institut Universitari Mixt de Tecnologia Química
Universitat Politècnica de València. Departamento de Conservación y Restauración de Bienes Culturales - Departament de Conservació i Restauració de Béns Culturals
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Issued date:
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Abstract:
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Mixed metal oxides based in Mo(W)–Nb–V–Te with tetragonal tungsten bronze (TTB) structure have
been synthesized by a hydrothermal method from aqueous solutions of the corresponding Keggin-type heteropolyacids and further ...[+]
Mixed metal oxides based in Mo(W)–Nb–V–Te with tetragonal tungsten bronze (TTB) structure have
been synthesized by a hydrothermal method from aqueous solutions of the corresponding Keggin-type heteropolyacids and further heat-treatment in N2 at 700 ◦ C. The materials have been characterized by several physico-chemical techniques, i.e. XRD, Raman, FTIR, SEM-EDS, and TEM. This procedure allows controlling the chemical species to be distributed in the different interstices of the TTB skeleton, which is a key factor to regulate the catalytic properties of the final solid. In this sense, the isomorphic replacement of Mo by W results in lattice parameter and crystal morphology variation, although the TTB structure is preserved to different degrees of substitution. The incorporation of tellurium to the TTB framework leads to active and selective catalysts in the partial oxidation of propene to acrolein.
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Subjects:
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Mo–V–Te–Nb–W–P–O mixed metal oxides
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Hydrothermal synthesis
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Isomorphic substitution of molybdenum by tungsten
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TTB-bronze
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Partial oxidation of propene
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Copyrigths:
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Cerrado |
Source:
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Catalysis Today. (issn:
0920-5861
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DOI:
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10.1016/j.cattod.2010.05.024
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Publisher:
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Elsevier
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Publisher version:
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http://dx.doi.org/10.1016/j.cattod.2010.05.024
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Project ID:
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info:eu-repo/grantAgreement/MEC//CTQ2006-09358/ES/DESARROLLO DE CATALIZADORES MULTIFUNCIONALES PARA UN PROCESO ECO-EFICIENTE BASADO EN LA OXIDACION SELECTIVA EN FASE GASEOSA DE ISOBUTANO/
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Thanks:
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Financial support from DGICYT in Spain through Projects CTQ2006-09358/BQU, is gratefully acknowledged. Authors are also grateful to Manuel Planes Insausti and Jose Luis Moya Lopez, technical supervisors responsible for the ...[+]
Financial support from DGICYT in Spain through Projects CTQ2006-09358/BQU, is gratefully acknowledged. Authors are also grateful to Manuel Planes Insausti and Jose Luis Moya Lopez, technical supervisors responsible for the Servicio de Microscopia Electronica (UPV) for the use of their facilities.
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Type:
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Artículo
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