Progress of research and development for single - site catalyst of polyolefin were summarized , combining research status of single - site catalyst in china and petrochina company limited , future development plan of single - site catalyst in petrochina company limited was also introduced 摘要综述了世界聚烯烃单活性中心催化剂的研发进展，结合我国内及中国石油天然气股份有限公司单活性中心催化剂的研究现状，提出中国石油天然气股份有限公司发展单活性中心催化剂的机遇、挑战及对策。
On one hand , after linking the fad of glucose oxidase ( god ) , mwnt accelerated the electron transfer . on the other hand , met the surface of the electrode , as a nanowire , mwnt expanded electrode space . both of the situations could short the electron - transferring time and then increase the response current 在这个过程中，一方面和酶分子的活性中心结合，可以加速酶分子到电子中间体的电子传递过程；另一方面和电极表面碰在一起，这根纳米导线也能扩展电极空间，提高和电子中间体的接触空间。
Abstract : several - aromaticamino ketones , which were designed according to some hypothetical models of the cyclooxygenase and 5 - lipoxygenase active sites , were synthesized by an amino exchange reaction . the structures of the eight new compounds were confirmed by ir , 1h - nmr and elemental analysis . the results of the pharmacological tests showed some of the investigated compounds had significant anti - inflammatory activity on croton oil - induced ear edema of mice 文摘:根据环氧化酶、 5 -脂氧化酶活性中心结构模型设计了一组-芳胺酮类化合物，并用胺交换反应合成了这些化合物.经红外光谱、核磁共振氢谱及元素分析证实了8个未见文献报道的化合物的结构.药理实验结果显示.部分受试化合物在巴豆油诱发小鼠足趾肿胀模型中表现出一定的抗炎活性
The result shows that the addition of pbo , bi2o3 , in2o3 in zinc electrode can improve the morphology of zinc deposition and prevent it from dendrite growth and deformation . and also , the dendrite growth of zinc was inhibited by the addition of c16 ( ch3 ) 3nbr in the electrolytes through the absorption in active sites on the surface of zinc electrode which will suppress zinc deposition 实验结果表明：在电极中适量添加pbo 、 bi _ 2o _ 3 、 in _ 2o _ 3三种金属氧化物可以明显改善锌沉积形态、抑制锌枝晶和变形；十六烷基三甲基溴化铵通过在锌电极表面的活性中心上特性吸附，抑制锌在这些位置的沉积，产生较均匀的沉积，从而达到抑制枝晶的效果。
The catalytic activity of ( hmbp ) 2ticl2was lower than - diketonate titanium catalysts . the catalytic activity of dinuclear - diketonate titanium catalysts was comparative to mononuclear ones . however , the dinuclear - diketonate titanium catalyst showed the synergism effect , for example , the lower catalyst concentration and the molar ratio of al to ti , the activity reached the maximum value at 80 , the melting temperature of polymer was enhanced 2 -羟基苯酮钛[ ( hmbp ) _ 2ticl _ 2 ]的催化活性低于-二酮钛类催化剂；双核催化剂在催化活性方面与对应单核催化剂相差不多，但在聚合规律上表现出与单核催化剂不同的双核协同作用，如聚合所需的催化剂浓度、助催化剂甲基铝氧烷mao量降低，活性在80时出现极值，熔点提高等，而且双核催化剂是单活性中心催化剂。
In the procedure , carbon nanotubes were oxidized by nitric acid and then neutralized with naoh to create carboxyl surface groups which were used to adsorb ni ( superscript 2 + ) ions , thereafter the adsorbed ni ( superscript 2 + ) ions were chemically reduced into ni nano - particles as a catalytic center for electroless nickel deposition , all these were further confirmed by infrared absorption spectra and electron microscopic observations 碳纳米管经硝酸氧化和碱中和后表面生成羧基，利用羧基吸附镍离子，之后吸附的镍离子被化学还原为镍的纳米微粒并成为化学镀镍的催化活性中心。
Crystal zirconium phosphate - phosphonate has the stability and regulity of interlayer floor of inorganic a - zirconium phosphate , they still have the designability of the organic group in the interlayer and adjustment of the ratio of organic and inorganic phosphorus acid , they are a kind of potential smart material , we can process molecule design and optimize filtration according to the requirement of goal reaction , we can prepare special ion - exchange , catalyst , catalyst supporters nonlinear optics compound , solid state proton conductivity and the intercalation complex precusor by introducing different active organic group or active center into the choice and stable framework of inorganic a - zirconium phosphate 有机?无机晶态混合磷酸锆具有无机磷酸锆的层板稳定性和规整性，同时具有层间有机基团的可设计性和有机无机磷酸混合配比的可调节性的特点，是一类很有潜力的灵巧材料，并且可以根据目标反应的要求进行分子设计和优化筛选，在无机磷酸锆优良稳定的骨架上引入不同的活性基团或活性中心，可以制备出性能独特的离子筛、催化剂、催化剂载体、非线性光学物质、固态质子导体和制备插层复合物的前驱物。
