摘要
The electrocatalytic properties of hydrogen storage alloy（HSA） MlNi3.65Co0.85Al0.3Mn0.3 substituting Pt as anode electrocatalyst of PEMFC was investigated. It is found that, after being optimized, the electrocatalytic abilities of the HSA is reasonably good, the current density of the HSA anode membrane and electrode assembly（MEA） reaches 168 mA/cm2 at 0.5 V and 232.4 mA/cm2 at 0.2 V, and its power density reaches the maximum value of 84 mW/cm2. The influence of operating temperature and hydrogen pressure on the electrocatalytic behavior of HSA anode MEA is also discussed. At 60 ℃ under 2.02×105 Pa H2, the HSA anode shows the best electrochemical properties.
The electrocatalytic properties of hydrogen storage alloy(HSA) MlNi_(3.65)Co_(0.85)Al_(0.3)Mn_(0.3) substituting Pt as anode electrocatalyst of PEMFC was investigated. It is found that, after being optimized, the electrocatalytic abilities of the HSA is reasonably good, the current density of the HSA anode membrane and electrode assembly(MEA) reaches 168 mA/cm^2 at 0.5 V and 232.4 mA/cm^2 at 0.2 V, and its power density reaches the maximum value of 84 mW/cm^2. The influence of operating temperature and hydrogen pressure on the electrocatalytic behavior of HSA anode MEA is also discussed. At 60 ℃ under 2.02×10~5 Pa H_2, the HSA anode shows the best electrochemical properties.
出处
《中国有色金属学会会刊：英文版》
CSCD
2005年第2期361-365,共5页
Transactions of Nonferrous Metals Society of China
关键词
储氢合金
镍钴锰合金
燃料电池
电化学性质
MlNiCoAlMn alloy
hydrogen storage alloy
fuel cell
anode
electrochemical property
