-methyl-aniline Electron Transfer Mechanism And Component Synergies

The quality of gasoline is much higher with the reqirements of environmental protection and energy conservation. This leads to the more application of non-metal antiknock .The studies of the mechanisms of non-metal antiknock will play an important role in exploring new antiknock in the future. So clarifying the mechanisms of antiknock has important effects on developing new antiknock. Aniline compounds has a good performance of the non-metallic antiknock additive, m-Toluidine which has the nature of electron transfer is one of the representative material and suitable to research with electrochemical methods. In this paper, we have investigated the electron-transfer properties of m-Toluidine and the effects of hydrogen peroxide and the co-effect of constituents of TKC with electrochemical technique, aiming at exploring the mechanism of antiknock and definiting the properties of constituents of antiknock. This will provide the theoretical basis for selecting components and finding the best proportion.We have investigated the electron-transfer properties of m-Toluidine in 1, 2-dichloroethane and methanol by cyclic voltammetry. The experimental results show that methanol as a polar protic solvent can combine with proton to form protonated methanol ion. It is propitious to delink proton in the coupling process of m-Toluidine, which can promote the formation of the free cation radical. 1, 2-dichloroethane as an aprotic solvent hasn't the promoting role. We also studied the spectral properties of m-Toluidine in methanol with situ UV spectra. The mechanism is that the free cation radical of m-Toluidine can form dimers by tail-tail coupling in methanol. The electrode process is considered to be followed by ECE mechanism.The role of antiknock is to eliminate peroxide produced by the combustion of gasoline in engine. We have presented some important evidences to the antiknocking mechanisms of m-Toluidine through investigating the reactions of m-Toluidine and hydrogen peroxide on the premise of analyzing the electrochemical properties of m-Toluidine. As a result, the relationship of antidetonating quality and electrochemical properties has been discussed. The experimental results indicate that m-Toluidine could eliminate hydrogen peroxide. m-Toluidine maybe eliminate peroxide effectively when it is added in the petrol and play a role of antiknock.As gasoline blending, the octane number of various blending components is different with the material in the pure state's, in which blending effect exists. In this paper, toluene, perchloroethylene, butyl acetate, 1, 2-dichloroethane, which are the main components of TKC, are blended with methanol respectively. We study the electron-transfer properties of m-Toluidine in different components and interaction with hydrogen peroxide by cyclic voltammetry at room temperature. It is found that when toluene, butyl acetate, perchloroethylene is added respectively to 10%, the oxidation peak current of m-Toluidine is the largest. When there is a little toluene, butyl acetate and perchloroethylene , it can manifest positive concocting effect and do good favor to eliminate peroxide with m-Toluidine.