The mesostructured V-Mg-O was synthesized at room temperature using vanadium acetylacetonate and magnesium chloride as source materials. The effects of a number of factors, such as the nature of the surfactant, the pH, and the vanadium/magnesium molar ratio in the formation of mesoporous V-Mg-O phases were investigated for a fixed molar concentration of surfactant. The synthesized samples were examined by X-ray diffraction, Brunauer-Emmett-Teller analysis, transmission electron microscopy, and energy dispersive spectroscopy. The anionic surfactants sodium dodecyl sulfate (SDS) and sodium dodecylbenzene sulfonate (SDBS) generated amorphous structures, while the cationic surfactant cetyltrimethylammonium bromide (CTAB) generated lamellar mesoporous structures with various degrees of crystallinity. Equimolar mixtures of an anionic surfactant, SDS, and a cationic surfactant (dodecyltrimethylammonium bromide (DTAB), myristyltrimethylammonium bromide (MTAB), cetylpyridium bromide (CPB), and cetyltrimethylammonium bromide (CTAB)), particularly the mixture SDS+CTAB, generated ordered lamellar structures with high crystallinity. It was found that the ordered arrangement ("crystallinity") of the pores was strongly dependent on the vanadium/magnesium molar ratios in the initial batches; too large or too small ratios were unfavorable to the crystallinity and generated distorted hexagonal (wormlike) mesostructures. The optimum vanadium/magnesium molar ratio regarding the crystallinity was found to be in the range 1:1 to 1:1.5, and the mesoporous phase had a lamellar structure. For both the single and the mixtures of anionic and cationic surfactants, the higher the pH, the more favorable was the formation of a lamellar-structured mesoporous V-Mg-O phase.

A mesostructured V-Mg-O was synthesized for catalytic purposes using vanadium(V) oxide and magnesium chloride as sources and various surfactants or surfactant mixtures as templates. Among the surfactants employed, it was found that cetyltrimethylammonium bromide (CTAB) and the mixture of CTAB and hexadecylamine (HDA) templated fibrous lamellar-like mesostructures. The mixture of CTAB+HDA was more efficient in templating the fibrous mesoporous V-Mg-O than the individual surfactants.

运用TPSR、TR-FTIR和化学捕获技术（CH3I作捕获剂），探讨了Rh/Si02催化剂上的POM反应机理，由此提出热分解氧化机理，认为CHx（x=l～3）和CHxO（x=1～3）可能是反应物种。

Hydrogen species in both SiO2 and Rh/SiO2 catalysts pretreated in different atmospheres (H2, O2, helium or air) at different temperatures (773 or 973 K) were investigated by means of 1H MAS NMR. In SiO2 and O2-pretreated catalysts, a series of downfield signals at -7.0, 3.8-4.0, 2.0 and 1.5-1.0 were detected. The first two signals can be attributed to strongly adsorbed and physisorbed water and the others to terminal silanol (SiOH) and SiOH under the screening of oxygen vacancies in SiO2 lattice, respectively. Besides the above signals, both upfield signal at −110 and downfield signals at 3.0 and 0.0 were also detected in H2-pretreated catalyst, respectively. The upfield signal at −110 originated from the dissociative adsorption of H2 over rhodium and was found to consist of both the contributions of reversible and irreversible hydrogen. There also probably existed another dissociatively adsorbed hydrogen over rhodium, which was known to be β hydrogen and in a unique form of "delocalized hydrogen". It was presumed that the β hydrogen had an upfield shift of ca.-20-50, though its 1H NMR signals, which, having been masked by the spinning sidebands of Si-OH, failed to be directly detected out. The downfield signal at 3.0 was assigned to spillover hydrogen weakly bound by the bridge oxygen of SiO2. Another downfield signal at 0.0 was assigned to hydrogen held in the oxygen vacancies of SiO2 (Si-H species), suffering from the screening of trapped electrons. Both the spillover hydrogen and the Si-H resulted from the migration of the reversible hydrogen and the β hydrogen from rhodium to SiO2 in the close vicinity. It was proved that the above migration of hydrogen was preferred to occur at higher temperature than at lower temperature.

NaY分子筛合成体系中添加铝的络合剂（乙二胺四乙酸、柠檬酸和醋酸），可有效地减小分子筛的晶粒尺寸及增加分子筛的晶化速度和SiO2Al2O3物质的量比。在添加柠檬酸的合成体系中，考察了柠檬酸的添加量对NaY分子筛晶化行为的影响。发现存在着一个最佳的柠檬酸的添加量范围，即n（柠檬酸）:n（氧化铝）≤2:1，在此范围内，NaY的晶化速率和硅铝比较高，而晶粒尺寸较小。