elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

High Temperature Water Electrolysis Using Metal Supported Solid Oxide Electrolyser Cells (SOEC)

Schiller, Günter and Ansar, Asif and Lang, Michael and Patz, Olaf (2009) High Temperature Water Electrolysis Using Metal Supported Solid Oxide Electrolyser Cells (SOEC). Journal of Applied Electrochemistry, 39 (2), pp. 293-301. Springer. DOI: 10.1007/s10800-008-9672-6 ISSN 0021-891X (Print), 1572-8838 (online)

[img]
Preview
PDF
989kB

Abstract

Metal supported cells as developed according to the DLR SOFC concept by applying plasma deposition technologies were investigated for use as solid oxide electrolyser cells (SOEC) for high temperature steam electrolysis. Cells consisting of a porous ferritic steel support, a diffusion barrier layer, a Ni/YSZ hydrogen electrode, a YSZ electrolyte and a LSCF oxygen electrode were electrochemically characterised by means of i-V characteristics and electrochemical impedance spectroscopy measurements including a long-term test over 2000 hours. The cell voltage during electrolysis operation at a current density of -1.0 A cm-2 was 1.28 V at an operating temperature of 850 °C and 1.4 V at 800 °C. A long-term test run over 2000 hours with a steam content of 43% at 800 °C and a current density of -0.3 A cm-2 showed a degradation rate of 3.2% per 1000 hours. The impedance spectra revealed a significantly enhanced polarisation resistance during electrolysis operation compared to fuel cell operation which was mainly attributed to the hydrogen electrode.

Item URL in elib:https://elib.dlr.de/56580/
Document Type:Article
Title:High Temperature Water Electrolysis Using Metal Supported Solid Oxide Electrolyser Cells (SOEC)
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schiller, GünterUNSPECIFIEDUNSPECIFIED
Ansar, AsifUNSPECIFIEDUNSPECIFIED
Lang, MichaelUNSPECIFIEDUNSPECIFIED
Patz, OlafUNSPECIFIEDUNSPECIFIED
Date:February 2009
Journal or Publication Title:Journal of Applied Electrochemistry
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:39
DOI :10.1007/s10800-008-9672-6
Page Range:pp. 293-301
Publisher:Springer
ISSN:0021-891X (Print), 1572-8838 (online)
Status:Published
Keywords:High temperature steam electrolysis, metal supported cell, electrochemical performance, degradation behaviour
HGF - Research field:Energy
HGF - Program:Efficient Energy Conversion (old)
HGF - Program Themes:E BZ - Fuel cells (old)
DLR - Research area:Energy
DLR - Program:E BZ - Fuel cells
DLR - Research theme (Project):E - Hochtemperatur-Brennstoffzellen (old)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Electrochemical Energy Technology
Deposited By: Schiller, Dr.rer.nat. Günter
Deposited On:27 Jan 2009
Last Modified:31 Jul 2019 19:23

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.