The experimental results show that the performance and limited current density of the PEMFC are enhanced with increasing operational temperature.
2
借助动态电位扫描分别研究了电流与施加电压的关系，极限电流与氧浓度的关系。
The relations between voltage and oxygen concentration of limiting current were investigated by dynamic scan, respectively.
3
极限电流密度的增大使阴极过电位增大，从而提高合金的形核速率，使沉积层晶粒的尺寸减小、显微硬度升高。
At the same time, the increase of over-potential results in the nucleating rate and the micro-hardness of deposits increasing, while the grain size deposits decreasing.
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