Ni/YSZ anode – Effect of pre-treatments on cell degradation and microstructures
▶ Decreased Ni/YSZ anode degradation upon OCV pre-treatment. ▶ Decreased Ni/YSZ anode degradation upon high temperature gas cleaning. ▶ Decreased Ni/YSZ anode degradation upon applying multilayer tape casting production. ▶ Preservation of Ni percolation network by pre-treatment of Ni/YSZ anode. Anod...
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| Veröffentlicht in: | Journal of power sources 2011-11, Vol.196 (21), p.8931-8941 |
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| container_title | Journal of power sources |
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| creator | Hauch, Anne Jørgensen, Peter Stanley Brodersen, Karen Mogensen, Mogens |
| description | ▶ Decreased Ni/YSZ anode degradation upon OCV pre-treatment. ▶ Decreased Ni/YSZ anode degradation upon high temperature gas cleaning. ▶ Decreased Ni/YSZ anode degradation upon applying multilayer tape casting production. ▶ Preservation of Ni percolation network by pre-treatment of Ni/YSZ anode.
Anode supported (Ni/YSZ–YSZ–LSM/YSZ) solid oxide fuel cells were tested and the degradation over hundreds of hours was monitored and analyzed by impedance spectroscopy. Test conditions were chosen to focus on the Ni/YSZ anode degradation and all tests were operated at 750
°C, a current density of 0.75
A
cm
−2. Oxygen was supplied to the cathode and the anode inlet gas mixture had a high p(H
2O)/p(H
2) ratio of 0.4/0.6. Commercially available gasses were applied. The effect of different types of pre-treatments on the Ni/YSZ electrode degradation during subsequent fuel cell testing was investigated. Pre-treatments included operating at OCV (4% and 40% H
2O in H
2) prior to fuel cell testing, cleaning of the inlet H
2 gas at 700
°C and processing the anode half cell via multilayer tape casting. Analyses of impedance spectra showed that the increase in the charge transfer reaction resistance in the Ni/YSZ (
R
Ni,TPB) was decreased to ¼ or less for the pre-treated and fuel cell tested cells when compared with a non-pre-treated reference tested cell; all operated at the same fuel cell test conditions. Scanning electron microscopy and image analyses for the non-pre-treated reference tested cell and selected pre-treated cells showed significant differences in the area fractions of percolating nickel both in the active anode and support layer. |
| doi_str_mv | 10.1016/j.jpowsour.2011.01.009 |
| format | Article |
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Anode supported (Ni/YSZ–YSZ–LSM/YSZ) solid oxide fuel cells were tested and the degradation over hundreds of hours was monitored and analyzed by impedance spectroscopy. Test conditions were chosen to focus on the Ni/YSZ anode degradation and all tests were operated at 750
°C, a current density of 0.75
A
cm
−2. Oxygen was supplied to the cathode and the anode inlet gas mixture had a high p(H
2O)/p(H
2) ratio of 0.4/0.6. Commercially available gasses were applied. The effect of different types of pre-treatments on the Ni/YSZ electrode degradation during subsequent fuel cell testing was investigated. Pre-treatments included operating at OCV (4% and 40% H
2O in H
2) prior to fuel cell testing, cleaning of the inlet H
2 gas at 700
°C and processing the anode half cell via multilayer tape casting. Analyses of impedance spectra showed that the increase in the charge transfer reaction resistance in the Ni/YSZ (
R
Ni,TPB) was decreased to ¼ or less for the pre-treated and fuel cell tested cells when compared with a non-pre-treated reference tested cell; all operated at the same fuel cell test conditions. Scanning electron microscopy and image analyses for the non-pre-treated reference tested cell and selected pre-treated cells showed significant differences in the area fractions of percolating nickel both in the active anode and support layer.</description><identifier>ISSN: 0378-7753</identifier><identifier>EISSN: 1873-2755</identifier><identifier>DOI: 10.1016/j.jpowsour.2011.01.009</identifier><identifier>CODEN: JPSODZ</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Anodes ; Applied sciences ; Current density ; Degradation ; Direct energy conversion and energy accumulation ; Electrical engineering. Electrical power engineering ; Electrical power engineering ; Electrochemical conversion: primary and secondary batteries, fuel cells ; Electrodes ; Energy ; Energy. Thermal use of fuels ; Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc ; Exact sciences and technology ; Fuel cells ; Gas cleaning ; Impurities ; Inlets ; Microstructure ; Multilayer tape casting ; Ni/YSZ ; Nickel ; Yttria stabilized zirconia</subject><ispartof>Journal of power sources, 2011-11, Vol.196 (21), p.8931-8941</ispartof><rights>2011 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c407t-de1a0e4fc6af2f2bc6b3954cbc40c1ed48d202aef40523f5231d98fc2d9816f43</citedby><cites>FETCH-LOGICAL-c407t-de1a0e4fc6af2f2bc6b3954cbc40c1ed48d202aef40523f5231d98fc2d9816f43</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jpowsour.2011.01.009$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>309,310,314,780,784,789,790,3550,23930,23931,25140,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=24497578$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Hauch, Anne</creatorcontrib><creatorcontrib>Jørgensen, Peter Stanley</creatorcontrib><creatorcontrib>Brodersen, Karen</creatorcontrib><creatorcontrib>Mogensen, Mogens</creatorcontrib><title>Ni/YSZ anode – Effect of pre-treatments on cell degradation and microstructures</title><title>Journal of power sources</title><description>▶ Decreased Ni/YSZ anode degradation upon OCV pre-treatment. ▶ Decreased Ni/YSZ anode degradation upon high temperature gas cleaning. ▶ Decreased Ni/YSZ anode degradation upon applying multilayer tape casting production. ▶ Preservation of Ni percolation network by pre-treatment of Ni/YSZ anode.
Anode supported (Ni/YSZ–YSZ–LSM/YSZ) solid oxide fuel cells were tested and the degradation over hundreds of hours was monitored and analyzed by impedance spectroscopy. Test conditions were chosen to focus on the Ni/YSZ anode degradation and all tests were operated at 750
°C, a current density of 0.75
A
cm
−2. Oxygen was supplied to the cathode and the anode inlet gas mixture had a high p(H
2O)/p(H
2) ratio of 0.4/0.6. Commercially available gasses were applied. The effect of different types of pre-treatments on the Ni/YSZ electrode degradation during subsequent fuel cell testing was investigated. Pre-treatments included operating at OCV (4% and 40% H
2O in H
2) prior to fuel cell testing, cleaning of the inlet H
2 gas at 700
°C and processing the anode half cell via multilayer tape casting. Analyses of impedance spectra showed that the increase in the charge transfer reaction resistance in the Ni/YSZ (
R
Ni,TPB) was decreased to ¼ or less for the pre-treated and fuel cell tested cells when compared with a non-pre-treated reference tested cell; all operated at the same fuel cell test conditions. Scanning electron microscopy and image analyses for the non-pre-treated reference tested cell and selected pre-treated cells showed significant differences in the area fractions of percolating nickel both in the active anode and support layer.</description><subject>Anodes</subject><subject>Applied sciences</subject><subject>Current density</subject><subject>Degradation</subject><subject>Direct energy conversion and energy accumulation</subject><subject>Electrical engineering. Electrical power engineering</subject><subject>Electrical power engineering</subject><subject>Electrochemical conversion: primary and secondary batteries, fuel cells</subject><subject>Electrodes</subject><subject>Energy</subject><subject>Energy. Thermal use of fuels</subject><subject>Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc</subject><subject>Exact sciences and technology</subject><subject>Fuel cells</subject><subject>Gas cleaning</subject><subject>Impurities</subject><subject>Inlets</subject><subject>Microstructure</subject><subject>Multilayer tape casting</subject><subject>Ni/YSZ</subject><subject>Nickel</subject><subject>Yttria stabilized zirconia</subject><issn>0378-7753</issn><issn>1873-2755</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNqFkMFOGzEQQC1EJULaX6h8QXDZZOz1rndvIAQFCVFVbQ_txXLsMXKUrIPtBfXWf-gf8iU4CnAs0tiWxm8840fIZwYzBqydL2fLTXhMYYwzDozNoAT0e2TCOllXXDbNPplALbtKyqY-IIcpLQEKKWFCvt36-a_vv6kegkX69PcfvXAOTabB0U3EKkfUeY1DTjQM1OBqRS3eRW119iWhB0vX3sSQchxNHiOmj-SD06uEn17OKfl5efHj_Kq6-frl-vzspjICZK4sMg0onGm1444vTLuo-0aYRbk2DK3oLAeu0QloeO3KYrbvnOFlZ60T9ZQc797dxHA_Yspq7dN2QD1gGJPqWQei7VteyJP_kkxKyTjrOBS03aHbL6WITm2iX-v4RzFQW9tqqV5tq61tBSWgL4VHLz10Mnrloh6MT2_VXIheNrIr3OmOw6LmwWNUyXgcDFofi3Zlg3-v1TMuupp8</recordid><startdate>20111101</startdate><enddate>20111101</enddate><creator>Hauch, Anne</creator><creator>Jørgensen, Peter Stanley</creator><creator>Brodersen, Karen</creator><creator>Mogensen, Mogens</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7SU</scope><scope>7TB</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>KR7</scope><scope>L7M</scope><scope>7ST</scope><scope>SOI</scope></search><sort><creationdate>20111101</creationdate><title>Ni/YSZ anode – Effect of pre-treatments on cell degradation and microstructures</title><author>Hauch, Anne ; Jørgensen, Peter Stanley ; Brodersen, Karen ; Mogensen, Mogens</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c407t-de1a0e4fc6af2f2bc6b3954cbc40c1ed48d202aef40523f5231d98fc2d9816f43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Anodes</topic><topic>Applied sciences</topic><topic>Current density</topic><topic>Degradation</topic><topic>Direct energy conversion and energy accumulation</topic><topic>Electrical engineering. Electrical power engineering</topic><topic>Electrical power engineering</topic><topic>Electrochemical conversion: primary and secondary batteries, fuel cells</topic><topic>Electrodes</topic><topic>Energy</topic><topic>Energy. Thermal use of fuels</topic><topic>Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc</topic><topic>Exact sciences and technology</topic><topic>Fuel cells</topic><topic>Gas cleaning</topic><topic>Impurities</topic><topic>Inlets</topic><topic>Microstructure</topic><topic>Multilayer tape casting</topic><topic>Ni/YSZ</topic><topic>Nickel</topic><topic>Yttria stabilized zirconia</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hauch, Anne</creatorcontrib><creatorcontrib>Jørgensen, Peter Stanley</creatorcontrib><creatorcontrib>Brodersen, Karen</creatorcontrib><creatorcontrib>Mogensen, Mogens</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Environmental Engineering Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Environment Abstracts</collection><collection>Environment Abstracts</collection><jtitle>Journal of power sources</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hauch, Anne</au><au>Jørgensen, Peter Stanley</au><au>Brodersen, Karen</au><au>Mogensen, Mogens</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Ni/YSZ anode – Effect of pre-treatments on cell degradation and microstructures</atitle><jtitle>Journal of power sources</jtitle><date>2011-11-01</date><risdate>2011</risdate><volume>196</volume><issue>21</issue><spage>8931</spage><epage>8941</epage><pages>8931-8941</pages><issn>0378-7753</issn><eissn>1873-2755</eissn><coden>JPSODZ</coden><abstract>▶ Decreased Ni/YSZ anode degradation upon OCV pre-treatment. ▶ Decreased Ni/YSZ anode degradation upon high temperature gas cleaning. ▶ Decreased Ni/YSZ anode degradation upon applying multilayer tape casting production. ▶ Preservation of Ni percolation network by pre-treatment of Ni/YSZ anode.
Anode supported (Ni/YSZ–YSZ–LSM/YSZ) solid oxide fuel cells were tested and the degradation over hundreds of hours was monitored and analyzed by impedance spectroscopy. Test conditions were chosen to focus on the Ni/YSZ anode degradation and all tests were operated at 750
°C, a current density of 0.75
A
cm
−2. Oxygen was supplied to the cathode and the anode inlet gas mixture had a high p(H
2O)/p(H
2) ratio of 0.4/0.6. Commercially available gasses were applied. The effect of different types of pre-treatments on the Ni/YSZ electrode degradation during subsequent fuel cell testing was investigated. Pre-treatments included operating at OCV (4% and 40% H
2O in H
2) prior to fuel cell testing, cleaning of the inlet H
2 gas at 700
°C and processing the anode half cell via multilayer tape casting. Analyses of impedance spectra showed that the increase in the charge transfer reaction resistance in the Ni/YSZ (
R
Ni,TPB) was decreased to ¼ or less for the pre-treated and fuel cell tested cells when compared with a non-pre-treated reference tested cell; all operated at the same fuel cell test conditions. Scanning electron microscopy and image analyses for the non-pre-treated reference tested cell and selected pre-treated cells showed significant differences in the area fractions of percolating nickel both in the active anode and support layer.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jpowsour.2011.01.009</doi><tpages>11</tpages></addata></record> |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Anodes Applied sciences Current density Degradation Direct energy conversion and energy accumulation Electrical engineering. Electrical power engineering Electrical power engineering Electrochemical conversion: primary and secondary batteries, fuel cells Electrodes Energy Energy. Thermal use of fuels Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc Exact sciences and technology Fuel cells Gas cleaning Impurities Inlets Microstructure Multilayer tape casting Ni/YSZ Nickel Yttria stabilized zirconia |
| title | Ni/YSZ anode – Effect of pre-treatments on cell degradation and microstructures |
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