Development of a planar SOFC device using screen-printing technology

Rotureau, D.; Viricelle, Jean‐Paul; Pijolat, Christophe; Caillol, Noémie; Pijolat, Michèle

doi:10.1016/j.jeurceramsoc.2005.03.115

Cited by 79 publications

(48 citation statements)

References 9 publications

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“…This low performance is explained by the non-adequate microstructure of the anode, and not by the SCFC geometry. Effectively, a conventional device elaborated with the same materials, with electrodes on the opposite faces of the YSZ pellet exhibit a maximum power density similar to the SCFC one [5]. This result thus validates the SCFC concept.…”

Section: Ysz-supported Scfcsupporting

confidence: 72%

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Compatibility of screen-printing technology with micro-hotplate for gas sensor and solid oxide micro fuel cell development

Viricelle

Pijolat

Rivière

et al. 2006

Sensors and Actuators B: Chemical

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Screen-printing technology is widely used in the field of gas sensors and can also be used to fabricate electrodes for solid oxide fuel cell (SOFC). The compatibility of this technique with micro-hotplate is studied to produce micro sensors and micro SOFC. For sensors application, development of inks containing precursor of sensing element allows to decrease annealing temperature and to improve adhesion. For SOFC development, we investigated a new type of device named single-chamber fuel cell (SCFC) for which the fuel and the oxygen are mixed and in contact with both the anode and cathode. Such devices were firstly built at a millimeter scale using LSM for cathode, YSZ for electrolyte and Ni-YSZ cermet for anode. Two types of configuration were studied: SCFC developed on YSZ support with screen-printed electrodes, and SCFC entirely manufactured by screen-printing on a inert ceramic substrate made of alumina. Although weak power densities were measured, around 1 mW/cm 2 , the feasibility of SCFC was confirmed. Then, preliminary results concerning LSM cathode deposition on micro-hotplate were obtained. LSM layers annealed up to 800• C resist well to temperature cycling but exhibit low conductivity.

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Section: Ysz-supported Scfcsupporting

confidence: 72%

“…The inks were constituted of the initial powders, either LSM or a mixture of NiO and YSZ (50-50 wt%) with organic binder and solvent. The layers were annealed at 1200 • C during 2 h [5]. Then, two gold collectors were also deposited by screen-printing in the form of a grid (Fig.…”

Section: Ysz-supported Scfcmentioning

confidence: 99%

Compatibility of screen-printing technology with micro-hotplate for gas sensor and solid oxide micro fuel cell development

Viricelle

Pijolat

Rivière

et al. 2006

Sensors and Actuators B: Chemical

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“…Most significant and initial developments of SCFC devices were performed by T. Hibino and co-workers who proposed a review on SCFC in [1]. In the first developments of SCFC devices [2][3][4], materials used in conventional SOFC were used, namely YSZ for electrolyte, Ni-YSZ cermet anode and LSM (La 0.8 Sr 0.2 MnO 3 ) cathode. As for conventional SOFC, such materials are now more and more replaced in order to significantly reduce the operating temperature while increasing or, at least maintaining performances.…”

mentioning

confidence: 99%

Development of Single Chamber Solid Oxide Fuel Cells (SCFC)

et al. 2010

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International audienceSingle Chamber Solid Oxide Fuel Cells (SCFC) have been prepared using an electrolyte as support (Ce0.9Gd0.1O1.95 named GDC). Anode (Ni-GDC) and different cathodes (Sm0.5Sr0.5CoO3 (SSC), Ba0.5Sr0.5Co0.2Fe0.8O3 (BSCF) and La0.8Sr0.2MnO3 (LSM)) were placed on the same side of the electrolyte. All the electrodes were deposited using screen-printing technology. A gold collector was also deposited on the cathode to decrease the over-potential. The different materials and fuel cell devices were tested under propane/air mixture, after a preliminary treatment under hydrogen to reduce the as-deposited nickel oxide anode. The results show that SSC and BSCF cathodes are not stable in these conditions, leading to a very low open circuit voltage (OCV) of 150 mV. Although LSM material is not the more adequate cathode regarding its high catalytic activity towards hydrocarbon conversion, it has a better chemical stability than SSC and BSCF. Ni-GDC-LSM SCFC devices were elaborated and tested; an OCV of nearly 750 mV could be obtained with maximum power densities around 20 mW cm–2 at 620 °C, under air–propane mixture with C3H8/O2 ratio equal to 0.53

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“…Entre os métodos de fabricação mais empregados, cita-se spray pirólise [35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51][52], screen printing [53,54] e a deposição a vapor, física (PVD) ou química (CVD) [55], ou ainda uma combinação desses métodos [56]. Muitos trabalhos preparam uma camada por prensagem e a segunda camada por screen printing; por exemplo, eletrólito [27,31,35], eletrólito e catodo [32], ou eletrodos [33] por prensagem e as demais camadas por outras técnicas.…”

Section: Preparação Da Célula Unitáriaunclassified

Preparação e avaliação de célula a combustível do tipo PaCOS unitária com ânodo a base de níquel e cobalto

Silva¹,

Alencar²,

Fiúza³

et al. 2007

Matéria (Rio J.)

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RESUMOUma célula a combustível do tipo PACOS unitária foi preparada e avaliada na geração de energia elétrica, utilizando metano ou hidrogênio como combustível. O ânodo da célula foi sintetizado a partir do eletro-catalisador desenvolvido e testado nesse trabalho (CATAC). O CATAC foi preparado pela mistura mecânica da zircônia estabilizada com ítria (YSZ) com os precursores metálicos (nitrato de níquel e cobalto, em sua forma hexahidratado), adicionando-se 25% de ácido cítrico à massa total da mistura e por fim calcinado a 800°C por quatro horas em ar. O catalisador foi caracterizado por fluorescência de raios X (XRF) e espectroscopia foto-eletrônica de raios X (XPS), a qual não indicou interação eletrônica entre o cobalto e níquel; o teor metálico do CATAC foi de aproximadamente 35% em massa. O CATAC foi testado para a geração de hidrogênio a partir da reforma a vapor do metano, mostrando boa produtividade de hidrogênio a partir de 600ºC. A estrutura do ânodo/eletrólito/cátodo foi preparada por prensagem de uma camada de CATAC misturado com grafite, uma camada de YSZ puro, e uma camada de óxido misto de lantânio, estrôncio e manganês (LSM) e grafite. O conjunto foi então prensado e sinterizado a 1380°C por quatro horas. Nas superfícies do ânodo e cátodo foram fixadas telas de platina, com o auxílio de tinta de platina, sendo o conjunto aquecido a 1100°C. Todo o sistema foi colado a um reator de alumina utilizando cola cerâmica. Microscopias por MEV da estrutura mostraram eletrólito denso e eletrodos porosos, com um conjunto adequadamente sinterizado. A célula unitária foi testada utilizando metano ou hidrogênio como combustível, a três temperaturas de operação. A tensão variou inversamente proporcional com a corrente, quando o desempenho foi medido a 850 ou 950ºC e hidrogênio, mas manteve-se constante acima de cinco mV a 800ºC com metano. A célula unitária mostrou um desempenho satisfatório na geração de eletricidade tanto com metano quanto com hidrogênio como combustíveis. Palavras chaves:Rede Cooperativa, pilha a combustível, óxido sólido, catalisador, níquel, cobalto, YSZ. Synthesis and Evaluation of Solid Oxide Fuel Cell (SOFC) with Anode based on Nickel and Cobalt ABSTRACTA unitary solid oxide fuel cell (SOFC) was prepared and evaluated for the electric energy generation, using methane and hydrogen as fuel. The cell anode was made with the electro-catalyst developed and characterized in this work (CATAC). CATAC was prepared by the mechanical mixture of zirconia stabilized with ytria (YSZ) and the metallic precursors (nickel and cobalt nitrate, hexahydrated), adding 25% of citric acid to the total mass, and finally calcined at 800°C for four hours in air. The catalyst was characterized by X-ray fluorescence (XRF) and X-ray photo-electronic spectroscopy (XPS), which did not indicate any electronic interaction between nickel and cobalt; CATAC metal content was approximately 35% in mass. CATAC was tested for the hydrogen generation from methane vapor reforming, showing good productivity starting at 600ºC. The ...

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Development of a planar SOFC device using screen-printing technology

Cited by 79 publications

References 9 publications

Compatibility of screen-printing technology with micro-hotplate for gas sensor and solid oxide micro fuel cell development

Compatibility of screen-printing technology with micro-hotplate for gas sensor and solid oxide micro fuel cell development

Development of Single Chamber Solid Oxide Fuel Cells (SCFC)

Preparação e avaliação de célula a combustível do tipo PaCOS unitária com ânodo a base de níquel e cobalto

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