Advances in anodic alumina membranes thin film fuel cell: CsH2PO4 pore-filler as proton conductor at room temperature

The formation of dense thin films to obtain an intermediate temperature solid oxide fuel cell (IT-SOFC) that uses Ba(Ce1−xZrx)0.9Y0.1O3−α (BCZYO, x = 0, 0.3, 1) as the proton conductor was attempted on a dense Pd substrate at low sintering temperatures by the metalorganic deposition (MOD) method. A BaCe0.9Y0.1O3−α (BCYO) thin film (thickness 0.8 μm) was prepared by MOD and then annealed at 850°C on a Pd substrate with low heat resistance. However, there are problems such as the very low density of the BCYO film and the presence of a PdO interlayer between the film and the Pd substrate. The densification of the crystallized BCYO thin film, which is about 0.5-μm thick, was improved by introducing a UV-assisted MOD process. Rapid thermal annealing (RTA) eliminated the PdO interlayer. In addition, the formation of dense thin films of BCZYO was achieved by the same UV-MOD (RTA) method. Therefore, the successful application of UV-MOD (RTA) to the formation of BCZYO thin films at low sintering temperatures was established.

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Fuel Cell Performances of Bio-Membranes Made of Chitosan-Polyelectrolyte Thin Films and Nanowires into Anodic Alumina Membranes

ECS Meeting Abstracts ◽

10.1149/ma2011-02/4/219 ◽

2011 ◽

Keyword(s):

Thin Films ◽

Fuel Cell ◽

Anodic Alumina ◽

Alumina Membranes ◽

Polyelectrolyte Thin Films

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Room temperature operation of surface-conduction single chamber fuel cell using a novel inorganic electrolyte as proton conductor

IEEJ Transactions on Electrical and Electronic Engineering ◽

10.1002/tee.20318 ◽

2008 ◽

Vol 3 (5) ◽

pp. 593-595 ◽

Cited By ~ 1

Author(s):

Akiyoshi Nagata ◽

Hidehiko Nosaka ◽

Yutaro Yoshimura ◽

Takeshi Kimura

Keyword(s):

Fuel Cell ◽

Room Temperature ◽

Proton Conductor ◽

Single Chamber ◽

Inorganic Electrolyte ◽

Surface Conduction ◽

Room Temperature Operation

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Studies on Water in the Hydration Chamber of a Modified Electron Microscope

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100069715 ◽

1970 ◽

Vol 28 ◽

pp. 544-545

Author(s):

R. C. Moretz ◽

G. G. Hausner ◽

D. F. Parsons

Keyword(s):

Thin Film ◽

Thin Films ◽

Electron Microscope ◽

Steady State ◽

Room Temperature ◽

Small Mass ◽

Equilibrium Pressure ◽

Biological Objects ◽

Mechanical Pump ◽

Differential Pumping

Use of the electron microscope to examine wet objects is possible due to the small mass thickness of the equilibrium pressure of water vapor at room temperature. Previous attempts to examine hydrated biological objects and water itself used a chamber consisting of two small apertures sealed by two thin films. Extensive work in our laboratory showed that such films have an 80% failure rate when wet. Using the principle of differential pumping of the microscope column, we can use open apertures in place of thin film windows.Fig. 1 shows the modified Siemens la specimen chamber with the connections to the water supply and the auxiliary pumping station. A mechanical pump is connected to the vapor supply via a 100μ aperture to maintain steady-state conditions.

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Warm and freeze-fracture of cotton seed radicles

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100129206 ◽

1987 ◽

Vol 45 ◽

pp. 984-985

Author(s):

E. L. Vigil ◽

E. F. Erbe

Keyword(s):

Thin Film ◽

Water Vapor ◽

Fracture Surface ◽

Membrane Structure ◽

Room Temperature ◽

Freeze Fracture ◽

Longitudinal Axis ◽

Fracture Plane ◽

Cotton Seeds ◽

Condensed Water

In cotton seeds the radicle has 12% moisture content which makes it possible to prepare freeze-fracture replicas without fixation or cryoprotection. For this study we have examined replicas of unfixed radicle tissue fractured at room temperature to obtain data on organelle and membrane structure.Excised radicles from seeds of cotton (Gossyplum hirsutum L. M-8) were fractured at room temperature along the longitudinal axis. The fracture was initiated by spliting the basal end of the excised radicle with a razor. This procedure produced a fracture through the tissue along an unknown fracture plane. The warm fractured radicle halves were placed on a thin film of 100% glycerol on a flat brass cap with fracture surface up. The cap was rapidly plunged into liquid nitrogen and transferred to a freeze- etch unit. The sample was etched for 3 min at -95°C to remove any condensed water vapor and then cooled to -150°C for platinum/carbon evaporation.

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