Applicability of the Kissinger equation in thermal analysis |
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| Authors: | P Budrugeac E Segal |
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| Institution: | 1.Department of Chemistry,Federal University of Rio Grande do Norte,Natal,Brazil;2.Department
of Chemical Engineering,Federal University of Sergipe,S?o Cristov?o,Brazil;3.CCEN, Department of Chemistry,Federal University of the Paraíba,Jo?o
Pessoa,Brazil |
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| Abstract: | Pt/WOx–ZrO2
bifunctional catalysts were synthesized using impregnation and polymeric precursor
methods. After the synthesis process the samples were calcined at 600, 700
and 800°C and characterized by X-ray diffraction, nitrogen adsorption
and temperature programmed reduction study by thermogravimetry. DTG-TPR profiles
showed between three and five reduction events at different temperatures attributed
to platinum reduction and to different stages of tungsten species reduction.
A comparative study of the synthesis method influence on the DTG-TPR curves
was accomplished. |
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| Keywords: | DTG-TPR impregnation and precursor polymeric methods Pt/WOx– ZrO2 |
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