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

Plasma sprayed oxygen electrode for solid oxide fuel cells and high temperature water electrolyzers

Ansar, Asif and Ilhan, Zeynep and Schiller, Günther and Patz, Olaf and Gregoire, Jean Baptiste (2007) Plasma sprayed oxygen electrode for solid oxide fuel cells and high temperature water electrolyzers. In: 2008 International Thermal Spray Conference. ASM International. ITSC 2008, 2008-06-02 - 2008-06-04, Maastricht, Netherlands.

[img] PDF - Registered users only
384kB

Abstract

Perovskite-type LSM and LSCF deposits were developed for oxygen electrode for solid oxide fuel cell and high temperature water electrolyzer by atmospheric plasma spraying (APS) using different feedstock powders. The deposits were tailored to exhibit high oxygen catalytic activity, oxygen surface exchange and diffusion rates, gas permeability and electronicionic conductivity. Deposits did not exhibit undesired secondary phases that may form in plasma. Promoting partial melting of the surface of the particles ensured interlayer cohesion and very porous deposit. In SOFC mode cells with LSCF cathodes operating at 800 °C had more than 700 mW/cm² power densities at 0.7 V, which was 35% better than that of cells with LSM cathode. When operating in electrolyzer mode at 800 °C the cells with LSCF oxygen electrode also proved significantly enhanced electrochemical performance compared to cells with LSM oxygen electrode. At a current density of 1 A/cm2 the voltage for water splitting was reduced to around 1.4 V at an operating temperature of 800 °C and to 1.28 V at 850 °C.

Item URL in elib:https://elib.dlr.de/50192/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Plasma sprayed oxygen electrode for solid oxide fuel cells and high temperature water electrolyzers
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ansar, AsifUNSPECIFIEDUNSPECIFIED
Ilhan, ZeynepUNSPECIFIEDUNSPECIFIED
Schiller, GüntherUNSPECIFIEDUNSPECIFIED
Patz, OlafUNSPECIFIEDUNSPECIFIED
Gregoire, Jean BaptisteUNSPECIFIEDUNSPECIFIED
Date:1 December 2007
Journal or Publication Title:2008 International Thermal Spray Conference
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Publisher:ASM International
Status:Published
Keywords:Perovskite, LSCF, LSM, SOFC, Plasma Spraying
Event Title:ITSC 2008
Event Location:Maastricht, Netherlands
Event Type:international Conference
Event Dates:2008-06-02 - 2008-06-04
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: Ilhan, Zeynep
Deposited On:16 Dec 2008
Last Modified:12 Dec 2013 20:26

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.