电解
耐久性
质子交换膜燃料电池
碱性水电解
电解水
电解质
工艺工程
制氢
聚合物电解质膜电解
催化作用
材料科学
化学
生化工程
计算机科学
工程类
电极
物理化学
生物化学
数据库
作者
Stefania Marini,Paolo Salvi,P. Nelli,Rachele Pesenti,M. Villa,Mario Berrettoni,Giovanni Zangari,Yohannes Kiros
标识
DOI:10.1016/j.electacta.2012.05.011
摘要
A short review on the fundamental and technological issues relevant to water electrolysis in alkaline and proton exchange membrane (PEM) devices is given. Due to price and limited availability of the platinum group metal (PGM) catalysts they currently employ, PEM electrolyzers have scant possibilities of being employed in large-scale hydrogen production. The importance and recent advancements in the development of catalysts without PGMs are poised to benefit more the field of alkaline electrolysis rather than that of PEM devices. This paper presents our original data which demonstrate that an advanced alkaline electrolyzer with performances rivaling those of PEM electrolyzers can be made without PGM and with catalysts of high stability and durability. Studies on the advantages/limitations of electrolyzers with different architectures do show how a judicious application of pressure differentials in a recirculating electrolyte scheme helps reduce mass transport limitations, increasing efficiency and power density.
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