二茂铁在汽油抗爆剂组分中电子转移性能及H_2O_2的影响

Electron-Transfer Properties of Ferrocene and Influence of Hydrogen Peroxide on Them in Antiknock Additive for Gasoline

采用气相色谱 /质谱联用技术对汽油抗爆剂TKC的辅助剂进行了组分分析。结果表明 ,二氯乙烷、甲苯、四氯乙烯、乙酸正丁酯是TKC辅助剂的主要组分。以其主要组分及TKC辅助剂为溶剂 ,运用循环伏安法研究了二茂铁在铂电极上的电化学行为 ,测试了H2 O2 存在时二茂铁的循环伏安特性 ,探讨了电极反应机理和组分的协同效应。结果表明 ,在各介质中反应机理均为电化学偶联随后为化学催化反应 (EC)

The auxiliaries of gasoline antiknock additive TKC were analysed by means of gas chromatography/mass spectrometry. The main auxiliary components were found to be toluene, dichloroethane, tetrachloroethy- lene, and butyl acetate. The electrochemical properties of ferrocene in the auxiliary additive in the presence and the absence of hydrogen peroxide were investigated at a platinum electrode by cyclic voltammetry. The electrode processes and cooperative effect of the additive components were determined. All the electrode reactions in the various media followed the catalytic EC(electron transfer-chemical reaction) mechanism.