Atomic Layer Deposition of Ceria-based Thin Films as Interlayer for Solid Oxide Fuel Cells

2019 ◽  
Vol 25 (2) ◽  
pp. 959-967 ◽  
Author(s):  
Zeng Fan ◽  
Fritz B. Prinz
Keyword(s):  
Thin Films ◽  
Fuel Cells ◽  
Atomic Layer Deposition ◽  
Solid Oxide Fuel Cells ◽  
Atomic Layer ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Layer Deposition

Atomic Layer Deposition of Cerium Oxide for Potential Use in Solid Oxide Fuel Cells

2013 ◽  
Vol 6 (1) ◽  
Author(s):  
Rachel R. Essex ◽  
J. I. Rossero ◽  
G. Jurisch ◽  
C.G. Takoudis
Keyword(s):  
Thin Films ◽  
Fuel Cells ◽  
Atomic Layer Deposition ◽  
Solid Oxide Fuel Cells ◽  
Cerium Oxide ◽  
Atomic Layer ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Layer Deposition ◽  
Potential Use

With the growing need for sustainable energy, solid oxide fuel cells are an attractive alternative for power generation since they are efficient and environmentally friendly. However, required high operating temperatures limit their widespread use. The two ways to reduce the operating temperature of solid oxide fuel cells is to decrease the thickness of the electrolyte and to use new materials that have lower ion resistivities. In this study, both methods were employed. Currently, yttrium stabilized zirconium is the material used in solid oxide fuel cells as the electrolyte, and in this study cerium oxide was examined to be a potential replacement. To decrease the thickness of the electrolyte, thin films production techniques can be used. One technique for making thin films is atomic layer deposition, also known as ALD, which uses alternating saturative surface reactions. ALD creates films that have good conformality, are pin-hole free, and thickness is easily controlled. In this study, the atomic layer deposition of cerium oxide was studied for potential use in solid oxide fuel cells as the electrolyte and anode. The optimum precursor temperature was found to be 130 °C and the water pulse length was found to be 55 ms. The ALD window, which is the temperature range of ideal ALD growth, was determined to be 210 to 280 °C, the surface was saturated when at least four plugs of precursor pulses were used in the procedure, and the growth was linear at 1.2 Å/cycle.

Behavior of La0.6sr 0.4Co0.2Fe0.2O3-  Cathode Powders Surface Modified by Atomic Layer Deposition for Solid Oxide Fuel Cells

2016 ◽  
Vol 75 (6) ◽  
pp. 195-202 ◽  
Author(s):  
J. F. Roeder ◽  
A. F. Zeberoff ◽  
P. C. Van Buskirk ◽  
A. Torabi ◽  
J. Barton ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Atomic Layer Deposition ◽  
Solid Oxide Fuel Cells ◽  
Atomic Layer ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Layer Deposition ◽  
Surface Modified

Tunability of Atomic Layer Deposition of Yttria-Stabilized Zirconium Oxide for use in Solid Oxide Fuel Cells

2013 ◽  
Vol 6 (1) ◽  
Author(s):  
A. Walter ◽  
R. Xu ◽  
G. Jursich ◽  
C.G. Takoudis
Keyword(s):  
Fuel Cells ◽  
Atomic Layer Deposition ◽  
Solid Oxide Fuel Cells ◽  
Photoelectron Spectroscopy ◽  
Zirconium Oxide ◽  
Atomic Layer ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Spectral Ellipsometry ◽  
Layer Deposition

Thin films of yttria-stabilized zirconium oxide (YSZ) were successfully deposited using atomic layer deposition (ALD) for use in solid oxide fuel cells (SOFCs). YSZ was deposited on p-Si(100) by ALD using Tris(isopropyl-cyclopentadienyl)yttrium [(iPrCp)3Y] and tris(dimethylamino)cyclopentadienylzirconim [ZyALD] as metal precursors and ozone as oxidant. The normalized ALD cycle ratio of yttria cycles / total cycles used in making these films was varied to investigate the tunability of this process. Spectral ellipsometry was used to measure the thickness of the films. X-ray photoelectron spectroscopy (XPS) analyses were used to evaluate the composition and binding environments of as-deposited YSZ films. The normalized cycle ratio and the yttrium atomic percentage (Y atoms / metal atoms) have a linear relationship with a strong correlation, implying excellent tunability for this process. The binding environment analyses determine the oxidation state of the metals and show that decreasing the cycle ratio decreases the extent of yttrium hydroxidation.

Improving solid oxide fuel cells with yttria-doped ceria interlayers by atomic layer deposition

2011 ◽  
Vol 21 (29) ◽  
pp. 10903 ◽  
Author(s):  
Zeng Fan ◽  
Cheng-Chieh Chao ◽  
Faraz Hossein-Babaei ◽  
Fritz B. Prinz
Keyword(s):  
Fuel Cells ◽  
Atomic Layer Deposition ◽  
Solid Oxide Fuel Cells ◽  
Atomic Layer ◽  
Solid Oxide ◽  
Doped Ceria ◽  
Oxide Fuel ◽  
Layer Deposition ◽  
Yttria Doped Ceria
Sign in / Sign up

Export Citation Format

Share Document