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
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Ni@Pt core–shell nanoparticles with enhanced catalytic activity for oxygen reduction reaction
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
نویسندگان
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