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Hydrogen production by electrolysis

2020; Elsevier BV; Linguagem: Inglês

10.1016/b978-0-12-817384-8.00005-4

Jaromír Hnát, Martin Paidar, Karel Bouzek,

Hydrogen Storage and Materials

This chapter deals with hydrogen production by water electrolysis. It first presents a history of the development of water electrolysis technology. In the next part the focus is on the fundamentals of water electrolysis thermodynamics and the kinetic aspects of this process. Engineering aspects concerning the design of the electrolysis stack and the selection of system components are covered in a later part. The final part of this chapter provides a detailed description of water electrolysis technologies. Beside traditional technologies, that is, alkaline, and emerging water electrolysis technologies, that is, polymer electrolyte and high-temperature processes, chlor-alkali electrolysis of brine is also addressed. Although, in the latter case, hydrogen only represents a side product, it now produces the majority of hydrogen originating from water decomposition by electrolysis.