Electrostatic spray deposition of Gd0.1Ce0.9O1.95 and La0.9Sr0.1Ga0.8Mg0.2O2.87 thin films

Taniguchi, Izumi; Landschoot, R.C. van; Schoonman, J.

doi:10.1016/s0167-2738(03)00149-8

Cited by 60 publications

(20 citation statements)

References 11 publications

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“…A wide range of chemical and physical parameters can be varied to tune the characteristics of the resultant structure, which can span from dense thin films to porous electrodes. [12][13][14] These parameters include solvent concentration, solution composition (affecting solution conductivity, surface tension and viscosity), temperature, gas flow rate, and spray geometry (e.g. tip-to-substrate path length, spraying direction).…”

Section: 8mentioning

confidence: 99%

Composite nanostructured solid-acid fuel-cell electrodes via electrospray deposition

et al. 2010

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Stable, porous, nanostructured composite electrodes were successfully fabricated via the inexpensive and scalable method of electrospray deposition, in which a dissolved solute is deposited onto a substrate using an electric field to drive droplet migration. The desirable characteristics of high porosity and high surface area were obtained under conditions that favored complete solvent evaporation from the electrospray droplets prior to contact with the substrate. Solid acid (CsH 2 PO 4 ) feature sizes of 100 nm were obtained from electrosprayed water-methanol solutions with 10 g L À1CsH 2 PO 4 and 5 g L À1 Pt catalyst particles suspended using polyvinylpyrrolidone (PVP). Alternative additives such as Pt on carbon and carbon-nanotubes (CNTs) were also successfully incorporated by this route, and in all cases the PVP could be removed from the electrode by oxygen plasma treatment without damage to the structure. In the absence of additives (Pt, Pt/C and CNTs), the feature sizes were larger, $300 nm, and the structure morphologically unstable, with significant coarsening evident after exposure to ambient conditions for just two days. Electrochemical impedance spectroscopy under humidified hydrogen at 240 C indicated an interfacial impedance of $1.5 U cm 2 for the Pt/CsH 2 PO 4 composite electrodes with a total Pt loading of 0.3 AE 0.2 mg cm À2. This result corresponds to a 30-fold decrease in Pt loading relative to mechanically milled electrodes with comparable activity, but further increases in activity and Pt utilization are required if solid acid fuel cells are to attain widespread commercial adoption.

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Section: 8mentioning

confidence: 99%

Composite nanostructured solid-acid fuel-cell electrodes via electrospray deposition

et al. 2010

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“…Very porous and regular structures were produced by Schoonman and coworkers [67] which sparked interest in this technique amongst the fuel cell community. Porous electrode films of LSCF [68,69], LSM [70], LSM/YSZ [71] and dense electrolyte films of YSZ [72][73][74][75] and CGO and LSGM [76] have been produced.…”

Section: Electrostatic Spray Deposition (Esd)mentioning

confidence: 99%

Thin films for micro solid oxide fuel cells

Beckel¹,

Bieberle‐Hütter²,

Harvey³

et al. 2007

Journal of Power Sources

318

174

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“…The production of monodisperse aerosols using electrospray has been thoroughly studied [52][53][54][55][56][57][58][59][60] and extensively applied [59,[61][62][63][64][65][66][67][68][69][70]. Loscertales [68,72] and the possibility of scale-up using multiple nozzles [72].…”

Section: Introductionmentioning

confidence: 99%