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Development of plasma sprayed Ni/YSZ anodes for metal supported solidoxide fuel cells
Högskolan Väst, Institutionen för ingenjörsvetenskap, Avdelningen för avverkande och additativa tillverkningsprocesser (AAT). (PTW)ORCID-id: 0000-0002-4201-668x
Karlsruhe Institute of Technology, Germany.
Högskolan Väst, Institutionen för ingenjörsvetenskap, Avdelningen för avverkande och additativa tillverkningsprocesser (AAT). (PTW)ORCID-id: 0000-0002-9578-4076
Oerlikon Metco, Germany.
2017 (engelsk)Inngår i: Surface & Coatings Technology, ISSN 0257-8972, E-ISSN 1879-3347, Vol. 318, s. 178-189Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Solid oxide fuel cells (SOFCs) offer a promising technique for producing electricity by clean energy conversionthrough an electrochemical reaction of fuel and air. Plasma spraying could be a potential manufacturing routefor commercial SOFCs, as it provides a distinct advantage especially in case of metal supported cells (MSCs) byallowing rapid processing at relatively low processing temperatures preventing thus the degradation of themetallicsubstrate. The objective of this work was to develop nickel/yttria stabilised zirconia (Ni/YSZ) anodes withhigh porosity and homogeneous phase distribution by atmospheric plasma spraying forMSCs. Various feedstockmaterial approaches were explored in this study, both with single injection aswell as separate injection of differentfeedstock materials , and with and without the use of pore formers to create additional porosity. The advantagesand issues with each material route were investigated and discussed. It was shown that agglomerated Ni/YSZ/polyester feedstock material resulted in the best distribution of Ni and YSZ in the anodemicrostructurewithhomogeneous porosity. Subsequently, the Ni/YSZ/polyester material route with different amounts and size distributionsof polyester was chosen to develop anode symmetrical cells using a commercial zirconia sheet as supportfor electrochemical testing. The Ni/YSZ/polyester anode powder with 10 wt.% standard size polyesterexhibited the best electrochemical performance. The results show that plasma spraying of the agglomeratedNi/YSZ/polyester could be a promising route to achieve high performance and rapid production anodes withoutusing the carcinogenic nickel oxide.

sted, utgiver, år, opplag, sider
2017. Vol. 318, s. 178-189
Emneord [en]
Solid oxide fuel cells, Atmospheric plasma spraying, Metal supported cells, Ni/YSZ anode, Electrochemical testing, Pore formers
HSV kategori
Forskningsprogram
TEKNIK, Produktions- och materialteknik; Produktionsteknik
Identifikatorer
URN: urn:nbn:se:hv:diva-10046DOI: 10.1016/j.surfcoat.2016.09.014ISI: 000402356100021Scopus ID: 2-s2.0-84995403793OAI: oai:DiVA.org:hv-10046DiVA, id: diva2:1039576
Forskningsfinansiär
Knowledge Foundation, 20130189
Merknad

Available online 9 September 2016

Funders: the European Commission, 284522

Tilgjengelig fra: 2016-10-24 Laget: 2016-10-24 Sist oppdatert: 2019-05-23bibliografisk kontrollert

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Gupta, Mohit KumarMarkocsan, Nicolaie

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