کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6601737 1424071 2018 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Stability study of silver nanoparticles towards the halide electroreduction
ترجمه فارسی عنوان
بررسی پایداری نانوذرات نقره نسبت به الکترودهای احیاء هالید
کلمات کلیدی
الکتروتالیز، نانوذرات نقره، الکترو سنتز ارگانیک، فعال سازی باند کربن-هالوژن،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
The field of electrosynthesis has undergone a tremendous advancement in the past few decades by implementation of a catalyst at the nanoscale level. While significant knowledge on factors that influence the activity of specific reactions such as carbon-halogen (CX) bond activation has been gained, many questions regarding the stability and degradation of nanoparticles still remain unsolved. Through the combination of a three-folded advanced characterization approach that combines electrochemical, analytical and microscopic results we are for the first time able to map the degradation of nanoparticles for CX bond activation reaction. This methodology is exemplified on the stability study of the most active nanoparticles towards CX bond activation, namely Ag nanoparticles. Results indicate that under electrochemical operation conditions Ag nanoparticles degradation occurs via two mechanisms: (i) agglomeration/coalescence and (ii) electrochemical dissolution of nanoparticles in the electrolyte. Identification of these degradation mechanisms is a first step in the understanding and subsequently controlling the synthesis of active and sustainable catalyst towards industrial applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 286, 1 October 2018, Pages 123-130
نویسندگان
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