XANES study of the dynamic states of V-based oxide catalysts under partial oxidation reaction conditions
作者： M.O. Guerrero-Pérez , R. López-Medina , E. Rojas-Garcia , M.A. Bañares
DOI: 10.1016/J.CATTOD.2017.12.016
关键词:
摘要: Abstract A XANES study under reaction conditions has been performed with two different V-based catalytic systems, Mo-V-Nb-Te-O and V-Sb-O. For this study, an alumina-supported nanoscaled bulk catalyst used. In all cases determined the average vanadium oxidation state during reaction. also demonstrated that nanosized phases are more dynamic, able to participate in redox cycle without significant changes either their structure or overall state. Such a stability is apparent oxidizing conditions.
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