The Malaysian Journal of Analytical Sciences Vol 11 No 1 (2007): 139 – 144

 

 

EFFECT OF CALCINATION TEMPERATURE ON THE PHYSICOCHEMICAL PROPERTIES OF MOV OXIDES PREPARED

VIA REFLUX METHOD

 

Tan Yee Wean, Irmawati Ramli*, Taufiq -Yap Yun Hin

 

Department of Chemistry, Faculty of Science, Universiti Putra Malaysia,

43400 Serdang, Selangor Darul Ehsan.

 

*Corresponding author: irmawati@science.upm.edu.my

 

Abstract

In this study, MoV mixed oxides with a molar ratio of 10:3 were prepared by reflux method. The samples were subjected to various calcination  temperatures in  order to investigate the physicochemical properties of the  oxide affected  by the parameter.  Samples  were  characterised  by  XRD,  TG/DTA,  BET  surface  area,  SEM  and  TPR.  By  imposing various calcination  temperatures,  phase  evolutions  were  observed.  However,  these  changes  do  not  significantly  affect the morphology, surface area, particle size and reducibility of the oxide. Still, the best calcination temperature can be chosen to arrive at the effective catalyst necessary for the desired catalytic reaction.

 

Keywords: Mo-V-O catalysts, reflux, selective oxidation of propane, TPR.

 

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