Community Research and Development Information Service - CORDIS

Abstract

In 1975, a R & D program on hydrogen production, storage and use was launched with the aim of clarifying the technical conditions and the prospects of hydrogen as an energy vector. Concerning storage the work concentrated on storage by metal hydrides, cryoadsorption and studies of large scale storage in cavities whereas "use" had as main issues material problems and chemical conversion of hydrogen and safety. The greatest part of the financial means was devoted to hydrogen production methods and in this context towards water electrolysis. Thermochemical water splitting; water electrolysis; improvement of alkaline water electrolysis had highest priorities, since in this field the fastest progress was to be expected. In a two-stage program new electrolyzer components and electrolyzer concepts respectively were developed from basic ideas and studies up to a proven state. Main improvements are highlighted by comparison with the current density voltage correlation of a conventional electrolyzer: Drastic decrease of internal resistance; development of thin (d < 0.5 mm) but nevertheless mechanically strong and corrosion resistant diaphragms; introduction of cheap cathodic and anodic electrocatalysts. This allows to predict a reduction in hydrogen price by 20%. Important innovations concerning diaphragms and electrocatalysis which emerged from the program are going to be put into commercial practice already now.

Additional information

Authors: WENDT H TECHNISCHE HOCHSCHULE DARMSTADT (GERMANY), TECHNISCHE HOCHSCHULE DARMSTADT (GERMANY)
Bibliographic Reference: SCIENTIFIC FORUM ON "CHEMISTRY IN THE SERVICE OF MANKIND", PARIS (FRANCE), JUNE 4-6, 1984 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 31619 ORA
Availability: Can be ordered online
Record Number: 1989123076400 / Last updated on: 1987-01-01
Category: PUBLICATION
Available languages: en