کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1620492 | 1005736 | 2010 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ni@Pt core–shell nanoparticles with enhanced catalytic activity for oxygen reduction reaction
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
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چکیده انگلیسی
Ni@Pt core–shell nanoparticles were synthesized by chemical reduction and sequential chemical deposition. The as-prepared nanoparticles were characterized by X-ray diffraction and high resolution transmission electron microscopy. Cyclic voltammetry and steady-state polarization measurements revealed that the Ni@Pt core–shell nanoparticles have much higher catalytic activity towards oxygen reduction than that of commercial BASF 20 wt Pt% catalyst. Ni@Pt core–shell nanoparticles only contain 16.7 at Pt%, therefore having a significantly reduced cost. Core–shell nanostructures could be a promising strategy to reduce the catalyst costs, but still maintain high catalytic reactivity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 503, Issue 1, 30 July 2010, Pages L1–L4
Journal: Journal of Alloys and Compounds - Volume 503, Issue 1, 30 July 2010, Pages L1–L4
نویسندگان
Guoxiu Wang, Huimin Wu, David Wexler, Huakun Liu, Oumarou Savadogo,