摘要
从负载型配合物制备性能特殊的金属镍催化剂已受到人们的重视.研究配合物与载体间的相互作用及其热分解过程,可以清楚地了解催化剂的状态,及配合物载体的相互作用对它的影响.本文以四氰合镍酸钾为模型化合物,考察了它和不同酸性载体的相互作用.
The infrared spectrometry, UV-diffuse reflection spectrometry and temperature-programmed decomposition techniques were used to study the properties of the supported K2Ni(CN)4 on acidic supports. It was found that the frequency for the stretch vibration of C≡N bond moved to higher wavenumber. The phenomenon might be ascribed to the interaction between the cyano ligand and surface acid sites which strengthened C≡N bond and weakened Ni-C bond, decreasing the stability of the complex.
基金
国家基金委
国家教委博士点基金
联合国教科文组织的资助
