کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9634221 | 463399 | 2005 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of adsorption processes on the CO2 electroreduction: An electrochemical mass spectrometry study
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
The reduction of CO2 in sulfuric and perchloric acid electrolytes on a polycrystalline Cu surface has been investigated, using the online electrochemical mass spectrometry method (EC/MS). Gaseous products, such as CH4, C2H4 and highly volatile products such as CH3OH, HCHO, are formed at overpotentials of hydrogen evolution reaction. The EC/MS results suggest that the reduction products formed depend on the presence of preadsorbed sulfate on the surface. The adsorbed anion from the electrolyte plays a role at the potential where HCHO formation occurs on copper. A mechanism for this process, based on electrocatalytic hydrogenation, is proposed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electroanalytical Chemistry - Volume 582, Issues 1â2, 15 August 2005, Pages 230-240
Journal: Journal of Electroanalytical Chemistry - Volume 582, Issues 1â2, 15 August 2005, Pages 230-240
نویسندگان
P. Dubé, G.M. Brisard,