ABSTRACT
Proton exchange membrane water electrolysis (PEMWE) technology is a high efficiency and clean route to extract H2 from pure water. As the converse process to the-state-of-the-art H2 fuel cell, PEMWE possess several merits including high energy conversion, zero emission, and the production of high purity H2. In order to push the technique into market with wider application, several issues including reduce the material cost, developing anti-corrosion current collectors, and further reducing the energy loss are imperative. In this chapter, we systemically reviewed the current status of PEMWE, comprising the basic theory and performance descriptors of the electrocatalysis process, the development of the anode and cathode materials, the membranes, the membrane electrode assembly, and the other cell components such as bipolar plate and etc. With these introductions, we hope to provide a clear picture to the readers about the scientific and technology issues that facing the PEMWE and provide guidance for future endeavors.
