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Citation: SHI Cheng-Wu, GE Qian, QIU Zhi-Guo, LI Bing, HAN Shi-Kui. Synthesis of 3-hexyl-1-methylimidazolium Iodide and Its Application in Dye-Sensitized Solar Cells[J]. Acta Physico-Chimica Sinica, ;2007, 23(09): 1473-1477. doi: 10.3866/PKU.WHXB20070932 shu

Synthesis of 3-hexyl-1-methylimidazolium Iodide and Its Application in Dye-Sensitized Solar Cells

1.
School of Chemical Engineering, Hefei University of Technology, Hefei 230009, P. R. China

Received Date: 13 February 2007
Available Online: 8 June 2007

A preparation method of ambient temperature ionic liquid, 3-hexyl-1-methylimidazolium iodide, via efficient reaction of 1-methylimidazole with 1-hexyl iodide using Teflon-lined, stainless steel autoclave, was described. It was found that excellent yield, about 100%, was obtained due to the increase of reaction temperature, which resulted in the feasibility of using only stoichiometric amounts of reactants. The main advantages of this present approach are solvent-free, eco-friendly, easy procedure and high purity of products. Moreover, the apparent diffusion coefficient of triiodide in the mixture of 3-hexyl-1-methylimidazolium iodide and 1-methylimidazole was investigated by cyclic voltammetry. The photovoltaic performances of dye-sensitized solar cells with electrolytes containing the mixture and different concentrations of iodine were compared.
- 3-Hexyl-1-methylimidazoliumiodide; Autoclave; Synthesis; Dye-sensitized solar cell
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