Sammes, N Tompsett, G Zhang, YJ Cartner, A Torrens, R
(CeO2)(1-x) (GdO1.5)(x) is a possible candidate as an electrolyte in a low temperature solid oxide fuel cell. This paper describes how Raman spectroscopy can be used to determine the structural changes observed with increasing Gd2O3 dopant concentration. The mechanical properties of (CeO2)(0.8) (GdO1.5)(0.2) were also determined. The 4-point bend s...
Torrens, RS Sammes, NM Tompsett, GA
The physical and electrical properties of (CeO2)(0.8)(GdO1.5)(0.2) have been examined using powders prepared from a number of different synthesis routes. Powders were synthesised using a modified co-precipitation reaction, a solid state reaction, and a commercial powder from a hydrothermal synthesis route. The powders synthesised via the solid stat...
Sammes, NM keppeler, f. michael na¨fe, helfried aldinger, fritz
This paper has examined the room-temperature mechanical properties of La0.8Sr0.2Ga1-xMgxO3-delta (x = 0.1-0.2) that was synthesized by using a solid-state technique. The modulus of rupture (MOR) was measured over the range of x = 0.1-0.2 and decreased as the B-site dopant content increased. At x = 0.15, for example, the MOR Was 139 +/- 17 MPa, wher...
Torrens, R Sammes, NM tompsett, g.a.
Ce(0.)8Gd(0.2-y)Pr(y)O(2-delta) (y = 0-0.05) and Ceo.8Gd0.2-ySmyO2-delta (y = 0-0.05) SOFC electrolyte materials were prepared using a reverse-strike co-precipitation method. The resulting powders were characterized using X-ray diffraction, Raman spectroscopy and electrochemical methods. XRD confirmed a single fluorite phase for all compositions. I...
Sammes, NM Du, Y Bove, R
Micro-tubular solid oxide fuel cells (SOFC) systems have many desirable characteristics compared to their planar counter-parts, however there are many obstacles and difficulties that must be met to achieve a successful and economically viable manufacturing process and stack design. Anode supported tubes provide an excellent platform for individual ...
Joo, JH Choi, GM
Yttria-stabilized zirconia (YSZ) thin films, 0.6-1.5 mu m, were deposited on Pt and sapphire substrates by a pulsed laser deposition (PLD) method. Their structural and transport properties have been studied by means of X-ray diffraction and electrical conductivity measurements. The in-plane and the perpendicular-to-plane conductivities (hereafter, ...
Sammes, NM Bove, R Du, YH
Microtubular solid oxide fuel cell systems have many desirable characteristics compared with their planar counterparts; however, there are many obstacles and difficulties that must be met to achieve a successful and economically viable manufacturing process and stack design. Anode-supported tubes provide an excellent platform for individual cells. ...
Zuo, Chendong Zha, Shaowu Liu, Meilin Hatano, Masaharu Uchiyama, Makoto
The composition of Ba (Zr0.1Ce0.7Y 0.2)O3-?? (BZCY7) in the barium-zirconium-cerium- yttrium (BZCY), that is used as an electrolyte for low-temperature solid-oxide fuel cells (SOFCs) is presented. SOFCs are very important due to its potential long-term stability and economical competitiveness for many al including residential and automotive. BZCY7 ...
Kim, Guntae Gross, Michael D. Wang, Wensheng Vohs, John M. Gorte, Raymond J.
The properties of solid oxide fuel cell (SOFC) anode functional layers prepared by impregnation of 1 wt % Pd and 10 wt % ceria into porous scaffolds of either Y0.04 Ce0.48 Zr0.48 O2 (CZY) or composites of La0.3 Sr0.7 Ti O3 (LST) and yttria-stabilized zirconia (YSZ) were examined to determine whether these scaffold materials would have sufficient el...
Kim, Sarah So, Jae-Hyun Lee, Dong-Jun Yang, Seung-Man
This work was supported by Samsung Electronics Co. Ltd. Partial support from Brain Korea 21 Program is also appreciated.