کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5146510 | 1497373 | 2017 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
2,2,6,6-Tetramethyl piperidine-1-oxyl mediated electrocatalytic oxidation of ethylene glycol in water and dichloromethane
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
2,2,6,6-Tetramethylpiperidinyl-N-oxyl (TEMPO) mediated electrocatalytic oxidation toward ethylene glycol was investigated as a function of electrolyte (aqueous carbonate buffer solution of pH 9.6 and dichloromethane solution with 2,6-lutidine as the base) by cyclic voltammetry and chronoamperometry. Both half-wave potentials and potential separations of electrochemical oxidation of TEMPO in these two electrolytes show differently. Electrocatalytic oxidation of ethylene glycol mediated by TEMPO was firstly reported here, it was observed the onset potential of this electrocatalytic oxidation reaction in dichloromethane solution is larger than that in carbonate buffer solution, moreover, electrocatalytic oxidation rate constant is calculated from chronoamperograms to be 1.63 Ã 103 L·molâ1·sâ1 in carbonate aqueous buffer solution, which is forty times as large as that in dichloromethane solution.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 4, 26 January 2017, Pages 2134-2138
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 4, 26 January 2017, Pages 2134-2138
نویسندگان
Wenbin Zhang, Zhixing Xiong, Zhangcai Zhang, Hang Gao,