Impregnation of Nanoparticle Scaffolds for Syngas-Fed Solid Oxide Fuel Cell Anodes | Zendy

Paul Boldrin | Zendy; Enrique RuizTrejo | Zendy; Christopher J. Tighe | Zendy; KeeChul Chang | Zendy; Jawwad A. Darr | Zendy; Nigel P. Brandon | Zendy

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Impregnation of Nanoparticle Scaffolds for Syngas-Fed Solid Oxide Fuel Cell Anodes

Author(s) -

Paul Boldrin,

Enrique RuizTrejo,

Christopher J. Tighe,

KeeChul Chang,

Jawwad A. Darr,

Nigel P. Brandon

Publication year - 2015

Publication title -

ecs transactions

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.235

H-Index - 52

eISSN - 1938-6737

pISSN - 1938-5862

DOI - 10.1149/06801.1219ecst

Subject(s) - materials science , sintering , solid oxide fuel cell , porosity , nanoparticle , syngas , anode , chemical engineering , scanning electron microscope , oxide , fabrication , microstructure , electrochemistry , hydrogen , electrode , nanotechnology , composite material , metallurgy , chemistry , medicine , alternative medicine , organic chemistry , engineering , pathology

© The Electrochemical Society.A strategy for fabrication of solid oxide fuel cell anodes with improved porosity and lower sintering temperatures by impregnation of nanoparticle-containing porous scaffolds of ceria-gadolinia (CGO) has been developed. The CGO scaffolds are fabricated using a screen-printed ink containing nanoparticles and commercial particles of CGO and polymeric pore formers. Scanning electron microscopy and in situ ultra-small angle X-ray scattering show that incorporation of nanoparticles increases the porosity by allowing a reduction in sintering temperature. Electrochemical characterisation of symmetrical cells shows that the cells sintered at 1000°C possess similar electrode polarisation compared to those sintered at 1300°C. Button cell testing showed that reducing the sintering temperature produced cells which perform better at 700°C and below in hydrogen, and performed better at all temperatures using syngas. This approach has the potential to allow the use of a wider range of nanomaterials, giving a finer control over microstructure

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