Wet powder spraying of a cermet anode for a planar solid oxide fuel cell system

Sammes, Nigel M.; Brown, Mark S.; Ratnaraj, R.

doi:10.1007/bf00633534

Cited by 15 publications

(4 citation statements)

References 4 publications

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“…A widely used deposition technique for the thin anode, electrolyte and cathode layers is screen printing. In some cases, vacuum slip casting [132], wet powder spraying [133], wet slurry printing [134] are also applied for the forming of anodes. For reducing cost, Siemens Power Generation has demonstrated a two-step process used to coat 100-150 m thick nickel/YSZ over the electrolyte layer.…”

Section: The Development Of Cost-effective Processing Technologies Fomentioning

confidence: 99%

Recent anode advances in solid oxide fuel cells

Sun

Stimming

2007

Journal of Power Sources

577

367

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Section: The Development Of Cost-effective Processing Technologies Fomentioning

confidence: 99%

Recent anode advances in solid oxide fuel cells

Sun

Stimming

2007

Journal of Power Sources

577

367

View full text Add to dashboard Cite

“…For porous structures the spray coating is a well-established method, and has been used for various coating layer depositions. [17,18] However, for SOFCs the electrolyte layer has to be gas tight to separate fuel and oxygen, and prevent an uncontrolled reaction. In this paper, the focus is on the preparation of dense electrolyte thin films on porous substrates using the spray coating method.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Doped Ceria Electrolyte Films for SOFCs by Spray Coating Method

Ding

Lin

Sato

et al. 2009

Journal of Dispersion Science and Technology

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Spray coating method is a cost-effective technique suitable for the preparation of uniform and large-area thin films. This article presents findings on the preparation of dense electrolyte thin films by spray coating method. Dense, crack-free Gd-doped CeO 2 (GDC) thin films with a thickness of approximately 2 mm were successfully prepared on porous NiO-GDC substrates. The influence of the dispersion of GDC nanopowders in susupension on the microstructure of the thin films was investigated. Results show that agglomeration of GDC nanopowders in suspension resulted in a porous microstructure and a densely packed microstructure was obtained for the film prepared from a well-dispersed suspension.

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“…Wet powder spraying has the potential to fulfill these requirements; it has been used as a processing technique to form porous gas electrodes. [8][9][10][11] A powder suspension is sprayed with a nozzle that forms droplets in a carrier gas flow. This process does not require as much binder as screen printing.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Gas Electrodes by Wet Powder Spraying of Binder‐Free Particle Suspensions Using a Pulse Injection Process

Oishi

Yoo

Davidson

2007

Journal of the American Ceramic Society

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A process for wet powder spraying of binder-free particle suspensions using pulse injection was devised for the fabrication of gas electrodes. The resulting deposited electrodes were found to have fine and uniformly distributed pores, to have good adhesion, and low interfacial resistance on electrolyte substrates. The uniformity of the layers was improved by decreasing the spray pulse to 0.05 s with a 1-s off period. Even without drying or any pre-treatments before firing, there was no cracking or delamination of the deposited layer. The deposited layer remained porous, crack-free, and well bound to the substrate after firing.

show abstract

Wet powder spraying of a cermet anode for a planar solid oxide fuel cell system

Cited by 15 publications

References 4 publications

Recent anode advances in solid oxide fuel cells

Recent anode advances in solid oxide fuel cells

Preparation of Doped Ceria Electrolyte Films for SOFCs by Spray Coating Method

Fabrication of Gas Electrodes by Wet Powder Spraying of Binder‐Free Particle Suspensions Using a Pulse Injection Process

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