Preparation of Pt/MgO catalysts.: Influence of the precursor metal salt and solvent used

被引:24
作者
Aramendía, MA [1 ]
Benítez, JA [1 ]
Borau, V [1 ]
Jiménez, C [1 ]
Marinas, JM [1 ]
Ruiz, JR [1 ]
Urbano, FJ [1 ]
机构
[1] Univ Cordoba, Fac Ciencias, Dept Quim Organ, E-14004 Cordoba, Spain
关键词
Pt catalysts; MgO; XRD; H-1 MAS NMR; CO2; TPD;
D O I
10.1016/S0927-7757(99)00531-2
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A magnesium oxide obtained by calcination of magnesium hydroxide at 600 degrees C, followed by rehydration and new calcination at 600 degrees C, was used as support in the preparation of supported Pt catalysts. Various Pt precursors in two different solvents were tested for this purpose. Both the support and the catalysts obtained from it were characterized by XRD, H-1 MAS NMR and CO2 chemisorption measurements. The catalyst obtained by impregnation in aqueous Pt(NH3)(NO3)(2) was found to exhibit the best chemical textural properties. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:27 / 33
页数:7
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