کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1551524 | 998136 | 2010 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Solvent-free synthesis of alkylbenzimidazolium iodides and their applications in dye-sensitized solar cells
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
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چکیده انگلیسی
In this paper, the synthesis of 1-hexyl-3-methylbenzimidazolium iodide (HMBI) and 1-hexyl-3-propylbenzimidazolium iodide (HPBI) was developed by quaternization reaction of 1-hexylbenzimidazole and alkyl iodide under solvent-free condition using Teflon-lined, stainless autoclaves. Their thermal properties were measured on the thermo gravimetric analysis and differential scanning calorimeter. The influence of HMBI, HPBI and 1-methyl-3-propylimidazolium iodide (MPII) on redox behavior of I3- and Iâ was investigated by cyclic voltammetry and electrochemical impedance spectroscopy. It was found that the resulting HMBI and HPBI had high purity and the reaction time was shortened to 3Â h. The thermal stability of HMBI and HPBI was better than that of alkylimidazolium iodides, and HMBI and HPBI were prone to exhibit the supercooling phenomena. The DSCs with HMBI, HPBI and MPII gave photoelectric conversion efficiency of 5.49%, 5.34% and 5.54%, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solar Energy - Volume 84, Issue 10, October 2010, Pages 1828-1832
Journal: Solar Energy - Volume 84, Issue 10, October 2010, Pages 1828-1832
نویسندگان
Mei Xia, Chengwu Shi, Renjie Sun, Molang Cai, Zhaokun Liu,