کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
195156 459808 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Preparation and characterization of carbon-supported PtVFe electrocatalysts
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Preparation and characterization of carbon-supported PtVFe electrocatalysts
چکیده انگلیسی

This paper reports the results of an investigation of the preparation and characterization of carbon-supported ternary PtVFe electrocatalysts. The catalysts were prepared by assembly of pre-synthesized PtVFe nanoparticles onto carbon support. The size, composition, and metal loading on carbon support were controllable. The carbon-supported PtVFe nanoparticles were further processed by thermal treatment, which were optimized for achieving effective shell removal and alloy formation. The structure and morphology of the catalysts were characterized using several techniques, including TEM, DCP–AES, FT-IR, TGA, and XRD. The catalysts were also examined for their intrinsic kinetic activities towards oxygen reduction reaction (ORR). The results have shown that the ternary catalysts are highly active for electrocatalytic ORR. Implications of our findings to applications in fuel cell catalysis are also discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 51, Issue 23, 15 June 2006, Pages 4821–4827
نویسندگان
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