Study on methane conversion to synthesis gas over nano Pt/MgO catalysts Ⅱ. Characterization of Pt-IV Catalysts
A series nanometer Pt/MgO (Pt-IV) catalysts with different Pt loading were prepared by using impregnation method. A lot of techniques (BET, XRD, TPR, TEM, and so on) were used to characterize the physico-chemical properties of the catalysts. CO2 reforming of methane to synthesis gas was carried out to test the catalytic activity. The results show that the loading of Pt has little influence on the texture and surface property. The dispersed Pt is in metallic state and is very stable when the catalysts were calcined at higher temperature. The particle size of dispersed Pt is about 2 nm. The calcination temperature influences the structure of the support, and the agglomeration of MgO particles takes place during the higher temperature calcination. The Pt-Ⅳ catalysts have very high activity for carbon dioxide reforming of CH4 to synthesis gas, especially at high Pt loaing.
nanometer Pt catalysts support MgO CO2 reforming of CH4 characterization catalytic activity
Min Yang Min Yang Helmut Papp
College of Environmental and Chemical Engineering Dalian Jiaotong University Dalian 116028,China Institute of Technical Chemistry University of Leipzig Leipzig 04103,Germany
国际会议
北京
英文
1-4
2009-06-11（万方平台首次上网日期，不代表论文的发表时间）