کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
220445 463333 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Platinum dispersed on silica nanoparticle as electrocatalyst for PEM fuel cell
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Platinum dispersed on silica nanoparticle as electrocatalyst for PEM fuel cell
چکیده انگلیسی

Colloidal silica has been employed as a support material to disperse Pt and develop Pt–SiO2 composites with electrocatalytic properties. The Pt–SiO2 particles of ratio 1:1 and 2:1 show superior performance towards oxygen reduction reaction (ORR) as these composite particles form an interconnected particle-network and maximize the available electrochemically active area. Upon increasing the Pt content we observe decreased activity as a result of aggregation of particles. The performance of Pt–SiO2 composite particles in H2-fuel cell are compared with Pt-black catalyst.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electroanalytical Chemistry - Volume 621, Issue 2, 15 September 2008, Pages 198–204
نویسندگان
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