کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6768671 | 512476 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrocatalytic activity of Pt-Pd electrocatalysts for the oxygen reduction reaction in proton exchange membrane fuel cells: Effect of supports
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Electrocatalytic activity of Pt-Pd electrocatalysts for the oxygen reduction reaction in proton exchange membrane fuel cells: Effect of supports Electrocatalytic activity of Pt-Pd electrocatalysts for the oxygen reduction reaction in proton exchange membrane fuel cells: Effect of supports](/preview/png/6768671.png)
چکیده انگلیسی
Pt-Pd electrocatalysts supported on different types of support including domestic Hicon Black (HB), multi-walled carbon nanotubes (MWCNT) and titania (TiO2) were prepared by a combined approach of impregnation and seeding, and compared to that prepared using the commercial Vulcan XC-72 (C). Their oxygen reduction reaction (ORR) activities in an acid electrolyte (0.5 M H2SO4) and in a single proton exchange membrane (PEM) fuel cell were evaluated. The type of support was found to affect the Pt-Pd electrocatalyst morphology and ORR activity. The Pt-Pd/C electrocatalyst had the smallest Pt particle size, better catalyst dispersion and a higher Pt:Pd M ratio compared to that of other types of supported Pt-Pd electrocatalysts. However, both in the acid solution and in a single PEM fuel cell, the ORR activities of the Pt-Pd/HB and Pt-Pd/CNT electrocatalysts were comparable to that of the Pt-Pd/C one. The ORR pathway of all supported Pt-Pd electrocatalysts were close to the four-electron pathway.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Renewable Energy - Volume 63, March 2014, Pages 205-211
Journal: Renewable Energy - Volume 63, March 2014, Pages 205-211
نویسندگان
Siripong Limpattayanate, Mali Hunsom,