DEVELOPMENT AND DEMONSTRATION OF ALKALINE ELECTROLYTIC HYDROGEN PRODUCTION SYSTEMS BASED ON INORGANIC MEMBRANE ELECTROLYTE TECHNOLOGY
This report summarizes the experimental results obtained July 1980 to December 1982 in subprogramme "Production and Utilization of Hydrogen" of the 2nd research programme on Energy (1979-83) in confirmation of work from 1976 onwards. The major aim of the R & D programme is to optimize efficiency of electrical energy use and capital utilization for water electrolyses in order to minimize the hydrogen production cost. In electrolyser cell design this means: reducing cell voltage and increasing current density respectively, plus requirement of long life time for components. The newly developed IME technology uses a patented membrane, based on the inorganic ion exchanger polyantimonic acid (PAM). The catalytically activated electrodes are pressed against it and hydrogen is produced under pressure (up to 0.5 MPa) at current densities up to 12,500 Am -2- and temperatures not exceeding 120 degrees C. To obtain a further reduction in cell voltage, electrodes based on different types of electrocatalysts (iron and nickel sulphide) were investigated. An extensive study aimed at a fundamental understanding of the mechanism of the hydrogen evolution reaction on such electrodes was carried out. The membrane and electrodes were built together in electrolysis modules of the bipolar type, and optimisation of the unit cell design attempted, the performance of bipolar electrolysis multicell investigated.
Bibliographic Reference: EUR 9221 EN (1984) MF, 163 P., BFR 240, BLOW-UP COPY BFR 815, EUROFFICE, LUXEMBOURG, POB 1003
Availability: Can be ordered online
Record Number: 1989123076300 / Last updated on: 1987-01-01
Available languages: en