Electrooxidation of Ethylene Glycol and Glycerol on Pd-(Ni-Zn)/C Anodes in Direct Alcohol Fuel Cells
作者:Andrea Marchionni、Manuela Bevilacqua、Claudio Bianchini、Yan-Xin Chen、Jonathan Filippi、Paolo Fornasiero、Alessandro Lavacchi、Hamish Miller、Lianqin Wang、Francesco Vizza
DOI:10.1002/cssc.201200866
日期:2013.3
The electrooxidation of ethylene glycol (EG) and glycerol (G) has been studied: in alkaline media, in passive as well as active direct ethylene glycol fuel cells (DEGFCs), and in direct glycerol fuel cells (DGFCs) containing Pd‐(Ni‐Zn)/C as an anode electrocatalyst, that is, Pd nanoparticles supported on a Ni–Zn phase. For comparison, an anode electrocatalyst containing Pd nanoparticles (Pd/C) has
已经研究了乙二醇(EG)和甘油(G)的电氧化:在碱性介质中,在被动式和主动式直接乙二醇燃料电池(DEGFCs)中以及在包含Pd-(Ni)的直接甘油燃料电池(DGFCs)中-Zn)/ C作为阳极电催化剂,即负载在Ni-Zn相上的Pd纳米颗粒。为了进行比较,还研究了包含Pd纳米粒子(Pd / C)的阳极电催化剂。EG和G的氧化主要是在半电池中进行的。获得的结果突出了Pd-(Ni-Zn)/ C在峰值电流密度方面的出色电催化活性,对于EG和2150 A g (Pd)-1而言,峰值电流密度高达3300 A g (Pd)-1。膜电极组件(MEA)是使用Pd-(Ni-Zn)/ C阳极,专有的Fe-Co / C阴极和Tokuyama A-201阴离子交换膜制造的。MEA性能已在装有5 wt%EG和5 wt%G的水溶液的无源或有源电池中进行了评估。鉴于在20至80°C的温度范围内,Pd负载下获得的峰值功率密度从阳极上的低至1