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Now showing items 11-20 of 25
Effect of redox properties on selective oxidation of propane to acrolein over molybdate-based catalyst
(SCIENCE CHINA PRESS, 2002)
The Ag-0.3 Mo0.6Ox and Ce0.1Ag0.3MoP0.6Oy catalysts were prepared and characterized by XRD, TPR, LRS, XPS and EPR techniques. And the catalytic performance of the catalysts for selective oxidation of propane to acrolein ...
Role of Ce on selective oxidation of propane to acrolein over Ce-Ag-Mo-P-O catalysts
(PEKING UNIV PRESS, 2003)
Role of Ce on the catalytic performance of Ce-Ag-Mo-P-O catalyst in selective oxidation of propane to acrolein was investigated. In order to establish the relationship between the catalytic performance and properties, the ...
Selective oxidation of propane to acrolein over Ce-doped Ag-Mo-P-O catalysts: influence of Ce promoter
(KLUWER ACADEMIC/PLENUM PUBL, 2003)
The selective oxidation of propane to acrolein was performed on Ce-doped Ag0.3Mo0.5P0.3Ox catalysts. The maximal acrolein yield of 4.4% with 28.7% acrolein selectivity was obtained on Ce0.1Ag0.3Mo0.5P0.3Oy catalyst. The ...
Mechanism of propane and iso-butane oxidehydrogenation on VMgO catalyst
(PEKING UNIV PRESS, 1999)
The reactivation and transformation of propane and iso-butane in the presence of oxygen on VMgO catalyst have been studied by temperature-programmed reaction - FTIR. The results showed that breaking of the second. C - H ...
Studies of the V2O5/MPO4 (M = Al, Zr, Ca) catalysts in propane oxidative dehydrogenation
(HIGHER EDUCATION PRESS, 1999)
The supports of MPO4 (M = Al, Zr, Ca) were prepared and 0.6 % similar to 6.0%V2O5 was supported on them. The catalysts are effective in the oxidative dehydrogenation of propane. The selectivity of C3H6 over the catalysts ...
Dynamic structure of Mo-O species in Ag-Mo-P-O catalyst for oxidative dehydrogenation of propane
(SCIENCE CHINA PRESS, 2002)
In order to understand the relationship between catalytic performance and structure of Ag-Mo-P-O caalyst for oxidative dehydrogenation of propane, the dynamic structure of Mo-O species in the catalyst was studied by in-situ ...
The active phase and support effect on V2O5/Y2O3 catalysts for propane oxidative dehydrogenation
(ELSEVIER SCIENCE BV, 1999-03-26)
The V2O5/Y2O3 catalysts were prepared and characterized. The performance of the catalysts in propane oxidative dehydrogenation was examined. The active phase of the catalysts is YVO4. The effects of Y2O3 and V2O5 in the ...
Reaction mechanism of selective oxidation of propane to acrolein over MoPO/SiO2 catalyst
(SCIENCE CHINA PRESS, 2006)
To elucidate possible reaction pathways for propane selective oxidation to acrolein over the MoPO/SiO2 catalyst, oxidative conversions of propane and possible intermediates or their probe molecules as well as the reaction ...
MoVBiTeO/SiO_2对丙烷选择氧化制丙烯醛反应的催化性能
(《催化学报》编辑部, 2008-04)
[中文文摘]用浸渍法制备了一系列不同Mo/V比的MoVBiTeO/SiO2催化剂,并用X射线衍射、拉曼光谱、X射线光电子能谱、程序升温还原和红外光谱等方法对催化剂的结构、氧化还原性质和酸性进行了表征,考察了催化剂对丙烷选择氧化制丙烯醛反应的催化性能.结果表明,Mo与V组分之间存在较强的相互作用,调变了催化剂的结构,并形成了氧化还原循环(V5++Mo5+V4++Mo6+),促进了催化剂中电子和O物种的传递,使催化剂的低温可还原性增强,催化 ...
Catalytic performance of MoVBiTeO/SiO2 for selective oxidation of propane to acrolein
(SCIENCE CHINA PRESS, 2008)
A series of MoVBITeO/SiO2 catalyst samples with different Mo/V ratios were prepared by the impregnation method. The catalyst structure, reducibility, and acidity were characterized by XRD, Raman, XPS, TPR, and FT-IR ...