纳米分散VOx/SiO2催化剂对石蜡烃部分氧化的影响

IF 0.7 4区化学 Q4 CHEMISTRY, MULTIDISCIPLINARY Theoretical and Experimental Chemistry Pub Date : 2022-12-14 DOI:10.1007/s11237-022-09743-4

V. O. Zazhigalov, S. B. Grinenko, I. V. Bacherikova, O. A. Diyuk

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引用次数: 0

摘要

以钒硅化合物为原料，采用水热法合成了V/Si原子比不同的VOx/SiO2。制备的样品具有较高的比表面积(300-700 m2/g)，钒在二氧化硅基体中的纳米分散分布均匀，无结晶相，拉曼光谱中没有典型的V=O键带。合成的催化剂在甲烷氧化制甲醛、丙烷和正丁烷的氧脱氢反应中具有较高的活性和选择性。

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Nanodispersed VOx/SiO2 Catalysts of Partial Oxidation of Paraffin Hydrocarbons

VO_x/SiO₂ with different V/Si atomic ratios have been synthesized by hydrothermal method from alkoxides of vanadium and silicon compounds. The prepared samples are characterized by high specific surface area (300-700 m²/g), uniform nanodispersed distribution of vanadia in silica matrix, the absence of crystalline phases, and the absence of the band typical for V=O bond in the Raman spectra. High activity and selectivity of the synthesized catalysts in oxidation of methane to formaldehyde, oxy-dehydrogenation of propane and n-butane have been established.

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来源期刊

Theoretical and Experimental Chemistry CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

1.60

自引率

10.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Theoretical and Experimental Chemistry is a journal for the rapid publication of research communications and reviews on modern problems of physical chemistry such as: a) physicochemical bases, principles, and methods for creation of novel processes, compounds, and materials; b) physicochemical principles of chemical process control, influence of external physical forces on chemical reactions; c) physical nanochemistry, nanostructures and nanomaterials, functional nanomaterials, size-dependent properties of materials.