期刊
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
卷 18, 期 6, 页码 1545-1555出版社
SPRINGER
DOI: 10.1007/s10008-013-2377-8
关键词
Carbonization; Nanoparticles; Electrooxidation; Activity
资金
- Higher Education Commission (HEC) of Pakistan [20-1638/RD/09/2900]
Porous carbon (PC-900) was prepared by direct carbonization of porous metal-organic framework (MOF)-5 (Zn4O(bdc)(3), bdc = 1,4-benzenedicarboxylate) at 900 A degrees C. The carbon material was deposited with PtM (M = Fe, Ni, Co, and Cu (20 %) metal loading) nanoparticles using the polyol reduction method, and catalysts PtM/PC-900 were designed for direct ethanol fuel cells (DEFCs). However, herein, we are reporting PtFe/PC-900 catalyst combination which has exhibited superior performance among other options. This catalyst was characterized by powder XRD, high-resolution transmission electron microscopy (HRTEM), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), and selected area electron diffraction (SAED) technique. The electrocatalytic capability of the catalyst for ethanol electrooxidation was investigated using cyclic voltammetry and direct ethanol single cell testing. The results were compared with those of PtFe and Pt supported on Vulcan XC72 carbon catalysts (PFe/CX-72 and Pt/XC-72) prepared via the same method. It has been observed that the catalyst PtFe/PC-900 developed in this work showed an outstanding normalized activity per gram of Pt (6.8 mA/g Pt) and superior power density (121 mW/cm(2) at 90 A degrees C) compared to commercially available carbon-supported catalysts.
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