镍系胶体催化剂的电导率和紫外光谱

Electric Conductivity and Uv Vis Spectrum of Nickel Catalyst System

在加氢汽油介质中Ｎｉ（ｎａｐｈ）２Ａｌ（ｉＢｕ）３（ＢＦ３·ＯＥｔ２＋ｎＣ８Ｈ１７ＯＨ）体系为胶体催化剂的基础上，从电导率，ＵＶＶｉｓ光谱对催化剂各组分之间的相互作用作进一步的分析。得出催化剂组分以离子对的形式参与反应；Ｎｉ°在（Ｎｉ）（Ａｌ）陈化液中以团簇粒子形式存在，因吸附Ｎｉ＋ｎａｐｈ而稳定，因加入（Ｂ）而失去稳定性，聚结为胶粒，活性中心位于胶粒表面的观点；以及（Ｂｄ）预混不影响活性中心形成的观点得到进一步验证。从而加深了对活性中心结构的认识。

The reaction mechanism of catalyst components was further analysed by electric conductivity and UV Vis spectrum.Further verified were the following conclusions: catalyst components reacted with each other in the form of ionic pair;there existed Ni(O) atom cluster(Ni 0) m in aged solution of <Ni> <Al>;the cluster were very stable because of adsorption of Ni +naph, and would become bigger as colloidal particles while <B〉 was added;active center was located on the surface of colloidal particles;and butadiene didn't take part in the formation of active center.