Effect of the cobalt precursors, including [Co(bipy)₃](NO₃)₂, [Co(NH₃)₅Cl]Cl₂, [Co(NH₃)₆]Cl_3, and [Co(en)₂Cl₂] Cl, on reactivity of the cationic Co/SiO₂ prepared by strong electrostatic adsorption (SEA) was investigated for the dehydrogenation of cyclohexane as a model reaction. According to the charge density of the cobalt complex, highly dispersed Co²⁺ species and/or Co³⁺ oxide can be obtained on the silica surface. The dehydrogenation activity is in the order of Co/SiO₂ catalysts prepared by [Co(bipy)₃](NO₃)₂ > [Co(NH₃)₅Cl]Cl₂ > [Co(NH₃)₆]Cl₃ > [Co(en)₂Cl₂] Cl, correlating to the Co²⁺ content of the final catalysts. The cationic cobalt catalysts are more active than the pre-reduced one. Although metallic cobalt is found to be less active, the activity of cationic cobalt catalyst is enhanced under H₂ flow, presumably due to the formation of cobalt hydride intermediate. The inter-conversion of Co²⁺/cobalt hydride intermediate is readily reversible and regulated by presence of hydrogen.

钴前体的作用，包括[Co（bipy）₃ ]（NO ₃）₂，[Co（NH ₃）₅ Cl] Cl ₂，[Co（NH ₃）₆ ] Cl ₃和[Co（en）₂以Cl ₂ ] Cl为例，研究了强静电吸附（SEA）制得的阳离子Co / SiO ₂对环己烷脱氢反应的反应性。根据钴配合物的电荷密度，可以在二氧化硅表面上获得高度分散的Co ²⁺物种和/或Co ³⁺氧化物。脱氢活性约为Co / SiO通过[Co（bipy）₃ ]（NO ₃）₂  > [Co（NH ₃）₅ Cl] Cl ₂  > [Co（NH ₃）₆ ] Cl ₃  > [Co（en）₂ Cl ₂ ] Cl制备_2种催化剂与最终催化剂的Co ²⁺含量相关。阳离子钴催化剂比预还原的催化剂活性更高。尽管发现金属钴的活性较低，但推测是由于氢化钴中间体的形成，使得阳离子钴催化剂的活性在H ₂流动下得以增强。Co ²⁺的互变/氢化钴中间体易于逆转并受氢的存在调节。