کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
40363 45851 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ethanol electro-oxidation using cadmium-doped cobalt/carbon nanoparticles as novel non precious electrocatalyst
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Ethanol electro-oxidation using cadmium-doped cobalt/carbon nanoparticles as novel non precious electrocatalyst
چکیده انگلیسی

Novel electrocatalyst based on non precious metals (Co and Cd) is introduced to be used as anode in the ethanol fuel cells. Cd-doped Cobalt nanoparticles encapsulated in graphite shell have been synthesized using simple sol–gel technique. The introduced electrocatalyst can be prepared from a sol–gel composed of cadmium acetate, cobalt acetate and poly(vinyl alcohol) based on the polycondensation possibility of the acetates. Grinding and calcination in Ar atmosphere of the prepared gel leads to produce Cd-doped Co nanoparticles encapsulated in a thin graphite layer. High current density (70 mA cm−2) and considerably low onset potential (∼585 mV vs. NHE) were obtained when the synthesized nanoparticles have been exploited as electrocatalyst for ethanol (concentration 1 M) oxidation in basic media (1 M KOH). Considering that the introduced nanoparticles composed of non precious metals and the obtained electrochemical results are satisfactory, the introduced study might open new avenues to the cobalt-based nanostructures to be used as novel electrocatalysts in the fuel cells applications.

Figure optionsDownload high-quality image (140 K)Download as PowerPoint slideHighlights
► The study introduces Co-mainly-based material as EOR electrocatalyst.
► Cd-doped Co nanoparticles encapsulated in graphite shell are introduced.
► The introduced NPs can be effectively used as electrocatalyst in ethanol oxidation.
► The introduced NPs reveal low onset potential and high current densities.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Catalysis A: General - Volume 455, 30 March 2013, Pages 193–198
نویسندگان
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