Yang, Min and Papp, Helmut (2009) Study on methane conversion to synthesis gas over nano Pt/MgO catalysts III. Influence of the precursors on the physico-chemical properties of the catalysts. Journal of Physics: Conference Series, 188 (1). 012060.
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Official URL: http://stacks.iop.org/1742-6596/188/i=1/a=012060
Using different precursors, two series of nano Pt/MgO catalysts (Pt-II and Pt-IV, respectively) loaded with Pt in a wide range from 0.1 wt% to 2.2 wt% were prepared by using wet impregnation methods. The physico-chemical properties of catalysts were characterized by using BET, XRD, TPD-CO 2 , and other techniques. The results revealed that the precursor and content of Pt, especially the acid/base properties of the precursor solution, had a big influence on the structure, and surface properties of the catalysts. The loaded Pt is in metallic state in all the catalysts calcined at 1073 K. The Pt-II catalysts had larger surface areas and relatively narrow pore size distribution range. The MgO crystals in the calcined Pt-II-3 catalyst had more regular structure than that in the calcined Pt-IV-3 catalyst.
|Deposited By:||Prof. Alexey Ivanov|
|Deposited On:||01 Nov 2011 23:34|
|Last Modified:||02 Nov 2011 00:47|
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