概述了气体扩散层中水和反应气的传质、GDL的双层结构、微孔层的“水管理”机制以及GDL的研究进展。
The mass transport of water and reactant gas in GDL, the two-layer structure of GDL and the "water management" mechanism of the micro-porous layer, and the research progress in GDL were reviewed.
讨论了质子交换膜燃料电池运行电流密度和温度、阴极和阳极加湿温度、气体扩散层孔隙率等参数对以上结果的影响。
The effect of the current density and fuel cell temperature, humidified temperature of cathode and anode, porosity of porous diffusion layer on the results mentioned above are discussed.
结果表明，炉管的氧化机理主要是金属离子穿过氧化物层的扩散并在氧化物—气体界面发生反应。
The results show that oxidizing mechanism of the heater tube is mainly diffusion of metal ion passing through oxide and its reaction at the oxide-gases boundary.
一定浓度的气体通过固体颗粒层扩散-反应时，其扩散深度的平方与扩散时间的比值为常数。
The ratio of the square of certain concentration gas diffusion depth and diffusion time is constant when it diffuses and reacts through the solids bed.
将气相生长碳纤维(VGCF)加入到锌空气电池空气电极催化层中，通过热压成型制备三相气体扩散电极。
Vapor grown carbon fiber (VGCF) was mixed in the catalyst layer of the air electrode for zinc-air battery, prepared by hot-pressing method.
将气相生长碳纤维(VGCF)加入到锌空气电池空气电极催化层中，通过热压成型制备三相气体扩散电极。
Vapor grown carbon fiber (VGCF) was mixed in the catalyst layer of the air electrode for zinc-air battery, prepared by hot-pressing method.
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