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New low to medium temperature electrolyte separation method and system for alkaline water electrolysis

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

9 Scopus citations

Abstract

A new electrolysis method of maintaining product gas separation by using fluid flow perpendicularly through porous electrodes rather than using a gas impermeable membrane has been developed. This eliminates the need for any type of membrane. Eliminating the need for a membrane in alkaline electrolysis allows the device to operate at temperatures above 120 °C, where most ion conducting membranes would degrade and fail. Operating at higher temperatures reduces the anode and cathode overpotentials substantially. The reduction in overpotentials allows non-platinum group metals to be used, while increasing the electrical efficiency at comparable current densities.

Original languageEnglish
Title of host publicationLow-Temperature Fuel Cells, Electrolyzers, and Redox Flow Cells
EditorsD. J. Jones, T. J. Schmidt, J. S. Herranz, H. A. Gasteiger, J. W. Fergus
PublisherElectrochemical Society Inc.
Pages133-137
Number of pages5
Edition3
ISBN (Electronic)9781607686842
DOIs
StatePublished - 2015
Event14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015; held as part of the Electrochemical Society, ECS Conference on Electrochemical Energy Conversion and Storage - Glasgow, United Kingdom
Duration: Jul 26 2015Jul 31 2015

Publication series

NameECS Transactions
Number3
Volume68
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Conference

Conference14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015; held as part of the Electrochemical Society, ECS Conference on Electrochemical Energy Conversion and Storage
Country/TerritoryUnited Kingdom
CityGlasgow
Period07/26/1507/31/15

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