From the emission spectra of coumarin 102 ( c102 ) in different conditions , it showed that c102 molecule existed single in both the composite material films . the sample catalyzed by acid had flat surface and dense structure but it had hackly surface and open structure catalyzed by the alkali 香豆素102 （ ci02 ）在不同状1态下的荧光分析表明，无论是碱还是酸催化所得薄膜复合材料， ci02分子在其中基本都以单体的形式存在。
The regulation of acid catalytic property of molecular sieve can be realized via surface modification of mesoporous molecular sieve by means of introducing doping metals into skeleton or loading active species onto matrix during synthesizing precursor for mesoporous molecular sieve 在合成介孔分子筛的前驱物中掺杂其他金属元素而将其引入骨架或将活性组分负载到介孔分子筛的基体上，可以实现对介孔分子筛表面进行表面修饰与改性，以调变分子筛表面的酸催化性能。
Catalytic synthesis of diisoamylester maleate with toluene - p - sulfonic acid , amino - sulfonic acid , strongly acidic cation exchange resin , ferric chloride hexahydrate , stannic chloride pentahydrate ; ammonium ferric sulfate dodecahydrate , sodium bisulfate monohydrate , solid super acid and heteropoly acid was reviewed 摘要综述了对甲苯磺酸、氨基磺酸、强酸性阳离子交换树脂、六水三氯化铁、五水四氯化锡、十二水合硫酸铁铵、水硫酸氢钠、固体超强酸和杂多酸催化合成马来酸二异戊酯的方法。
Effective uses of lignin not only economize natural resources , but also benefit protecting environment . previously the amounts of poms used in bleaching paper pulp were plenty , and up to now the problem of circular use of pom has not yet been solved . in this paper we firstly investigate the method that poms as catalysts degenerated lignin by electrolysis , which can solve the problem of circular use 所以有效利用木质素不仅可以节省自然资源，而且有利于保护环境，本论文针对已有美国专利应用杂多酸( pom )氧化木素用量较大，难以循环利用的问题，首次应用电解法研究了杂多酸催化降解木质素，解决了pom循环使用的问题。
Because the tungsten from the phosphotungstic acid could pull out and deposit on the surface of catalyst , and the electronegativity of mo - o is smaller than that of w - o . the smaller the electronegativity is , the higher oxidation activity is . thus phosphomolybdic acid shows better catalytic oxidation activity than phosphotungstic acid 由于磷钨酸中的钨可以脱出并少量沉积到催化剂表面,而且从电负性来说mo - o的键能小于w - o ,键能小的杂多酸有较强的氧化性,所以钼系杂多酸催化活性要好于钨系杂多酸。
The ratio of tetraethyloxysilane ( teos ) : ethanol : distilled water is 1 : 3 : 4 . n - n " dimethyl formamide ( dmf ) was used as solvent and drying control chemical additive ( dcca ) in a proportion of 0 . 3 dmf / ethanol volume ratio . drops of hf / hc1 mixture acid was added to promote hydrolysis ( ph = 2 ) 溶剂的选择对基质凝胶孔的形状基本没有影响，但对其孔径分布有较大影响:在hf / hci混合酸催化情况下， dmf溶剂的样品孔径最小， dmf /乙醇混合溶剂的其次，乙醇溶剂的样品孔径最大。
The preparation of functionalized mesoporous molecular sieves were introduced , which are including the formation of the acid active sites , redox active sites and used the support for immsobilizing enzyme catalysts by heteroatomic substitution ; the formation of polymerization active sites , acid active sites or chiral catalysis sites by the organic - inorganic graft ( or hybridization ) ; as the carriers , the transition metals , transition metal oxides and acid catalysts are supported 摘要介绍了介孔分子筛经杂原子取代，引入酸功能、氧化还原功能；经有机无机嫁接（杂合） ，引入聚合催化功能、酸催化功能、手性催化功能；经修饰的介孔分子筛，用作固定化酶催化剂的载体；作为催化剂的载体，用于负载过渡金属及其氧化物和制备负载化的固体酸催化剂。
