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分子结构对醇催化脱氢速率的影响已有多人研究。最早,Palmer等曾研究各种醇在还原铜催化剂上的脱氢,找出在同样条件下所有伯醇的脱氢速率相同。而仲醇的脱氢速率约为伯醇五倍。同时,Constable还观察到在还原铜催化剂上乙醇、正丙醇、正丁醇、正戊醇的活化能相同。随后,Борк等在还原铜和沉淀铜上的脱氢研究也认为醇的烃基大小对活化能影响不大。Баландин及其同事研究在氧化物催化剂上各种结构醇的脱氢动力学。结果表明,取代基链的长短,基的形状和在醇中的位置不同皆影响脱氢的活化能。Баландин曾比较许多在金属催化剂和氧化物催化剂上的实验结果,认为两
The influence of molecular structure on the rate of alcohol-catalyzed dehydrogenation has been studied by many people. Earlier, Palmer et al. Studied the dehydrogenation of various alcohols on reduced copper catalysts to find the same rate of dehydrogenation of all primary alcohols under the same conditions. The secondary alcohol dehydrogenation rate of about five times the primary alcohol. In the meantime, Constable also observed that the activation energies of ethanol, n-propanol, n-butanol and n-pentanol on the copper reductant were the same. Subsequently, Борк et al in the reduction of copper and copper on the dehydrogenation study also believe that the size of the alcohol alkyl has little effect on the activation energy. Баландин and colleagues studied the dehydrogenation kinetics of various structural alcohols on oxide catalysts. The results show that the length of the substituent chain, the shape of the base and the different positions in the alcohol all affect the activation energy of dehydrogenation. Баландин has compared many experimental results on metal catalysts and oxide catalysts, that two