期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 42, 期 9, 页码 5958-5970出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2016.11.164
关键词
Oxygen reduction; Electrocatalysis; Pt nanoparticles; Carbon nanotubes; Composite catalysts; Magnetron sputtering
资金
- Estonian Ministry of Education and Research [IUT20-16, IUT2-24]
- EU through the European Regional Development Fund [TK141]
Platinum nanoparticles supported on acid-treated multi-walled carbon nanotubes (Pt/MWCNT) catalysts were prepared through magnetron sputtering of Pt. The prepared Pt/MWCNT composites were annealed at different temperatures to study heat-treatment effects on the particle size, surface morphology, and the oxygen reduction reaction (ORR) activity. High-resolution scanning electron microscopy (SEM) was used to study the surface morphology of Pt/MWCNT catalysts. For surface characterization, CO oxidation and cyclic voltammetry were performed in 0.1 M KOH and 0.05 M H2SO4 solutions. The ORR activity of the electrocatalysts annealed at different temperature was studied in these solutions using the rotating disk electrode (RDE) method and the results were compared to those of the commercial Pt/C catalysts. Specific activity for oxygen reduction on Pt/MWCNT catalysts was higher than that of Pt/C, however, the mass activity was lower due to a larger Pt particle size of Pt/MWCNT catalysts. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据