Dense and Low Oxygen Permeability Bilayer Ceramic Interconnect for Tubular Anode-Support Solid Oxide Cells

2020 ◽  
Author(s):  
Xin Yang ◽  
Peng Qiu ◽  
Nansheng Xu ◽  
Lichao Jia ◽  
Lei Alexander Zhang ◽  
...  
Keyword(s):  
Oxygen Permeability ◽  
Solid Oxide ◽  
Low Oxygen ◽  
Anode Support ◽  
Ceramic Interconnect

scholarly journals HYDROGELS FROM POLYACRYLIC ACID FOR REDUCTION OF BIOADHESION ON SILICONE CONTACT LENSES

2014 ◽  
Vol 5 (1) ◽  
Author(s):  
Zahida Ademović ◽  
Snježana Marić ◽  
Peter Kingshott ◽  
Zoran Iličković
Keyword(s):  
Surface Modification ◽  
Oxygen Permeability ◽  
Contact Lenses ◽  
Low Oxygen ◽  
Maldi Tof Ms ◽  
Maldi Tof ◽  
Angle Measurements ◽  
Contact Angle Measurements ◽  
Lysozyme Adsorption ◽  
Tof Ms

Contact lenses suffer from two limitations: low oxygen permeability and deposition of protein and lipids. In order to prevent bioadhesion, surface must be completely inert to all biological reactions. To achieve this, surface properties must be tailored. Also, to improve comfort, surface must be highly wettable and lubricous. In this paper the surface of silicone contact lenses was modified by plasma induced copolymerization of acrylic acid. A wettable surface was generated and in addition carboxyl groups that were created on the surface provided an ideal reactive platform for subsequent grafting of polyethylene glycol. Each surface modification step was analysed by XPS and contact angle measurements. Lysozyme adsorption on modified silicone contact lenses was analysed by surface-MALDI-ToF-MS and XPS. After incubation with lysozyme, surface-MALDI-TOF-MS and XPS analysis showed a reduction of adsorbed lysozyme on hydrogel modified contact lenses. Surface modification of silicone with PEG is a method for reduction of protein adsorption on contact lenses.

An All-Ceramic Interconnect for Use in Solid-Oxide Fuel Cell Stacks

MRS Bulletin ◽  
2005 ◽  
Vol 30 (8) ◽  
pp. 596-600 ◽  
Author(s):  
Thomas A. Morris ◽  
Eric A. Barringer ◽  
Steven C. Kung ◽  
Rodger W. McKain
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Cost Model ◽  
Electrical Current ◽  
High Volume ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Fuel Gas ◽  
All Ceramic ◽  
Ceramic Interconnect

AbstractThis article summarizes a unique approach in which all-ceramic interconnects are used in place of metal interconnects in solid-oxide fuel cell (SOFC) stacks. The approach combines advanced SOFC materials with the manufacturing technology and infrastructure established for multilayer ceramic (MLC) packaging for the microelectronics industry. The MLC interconnect is fabricated using multiple layers of yttria-stabilized zirconia (YSZ) tape, with each layer containing conductive vias to provide for electrical current flow through the interconnect. The all-ceramic interconnect design facilitates uniform distribution of air and fuel gas to the respective electrodes of adjacent cells. The multilayer interconnects are fabricated using traditional MLC manufacturing processes. A detailed description of the processes for fabricating the all-ceramic interconnect is presented.To aid in moving from prototype fabrication to commercialization of these fuel cell systems, a detailed cost model has been used as a roadmap for commercial stack development. Cost model projections are presented for three different interconnect footprint sizes. These projections show an SOFC stack cost of less than $150 per kilowatt for the optimized SOFC stack design produced at high volume.

Effect of nano-Al2O3 addition on mechanical durability of nickel-yttria stabilized zirconia anode support of solid oxide fuel cells

2018 ◽  
Vol 44 (12) ◽  
pp. 14824-14833 ◽  
Author(s):  
Muhammad Taqi Mehran ◽  
Muhammad Zubair Khan ◽  
Tak-Hyoung Lim ◽  
Seung-Bok Lee ◽  
Rak-Hyun Song
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Yttria Stabilized Zirconia ◽  
Oxide Fuel ◽  
Stabilized Zirconia ◽  
Al2o3 Addition ◽  
Mechanical Durability ◽  
Anode Support

Low temperature densification process of solid-oxide fuel cell electrolyte controlled by anode support shrinkage

RSC Advances ◽  
2011 ◽  
Vol 1 (5) ◽  
pp. 911 ◽  
Author(s):  
Toshio Suzuki ◽  
Toshiaki Yamaguchi ◽  
Koichi Hamamoto ◽  
Hirofumi Sumi ◽  
Yoshinobu Fujishiro
Keyword(s):  
Fuel Cell ◽  
Low Temperature ◽  
Solid Oxide Fuel Cell ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Densification Process ◽  
Anode Support

Fe/Mn-based Perovskite-Type Oxides with Excellent Oxygen Permeability and Reduction Tolerance

2004 ◽  
Vol 835 ◽  
Author(s):  
Yasutake Teraoka ◽  
Hironobu Shimokawa ◽  
Hajime Kusaba ◽  
Kazunari Sasaki
Keyword(s):  
Partial Oxidation ◽  
Synthesis Gas ◽  
Oxygen Permeability ◽  
Membrane Reactors ◽  
Permeation Flux ◽  
Low Oxygen ◽  
Reducing Atmosphere ◽  
A Site ◽  
Perovskite Type ◽  
Perovskite Type Structure

ABSTRACTA family of Co-free, Fe/Mn-based perovskite-type oxides, (Sr, A')(Fe, Mn)O3-δ (A'=La, Ba, Ca), was synthesized, and their oxygen permeability and phase stability in reducing atmosphere were investigated. The substitution of Mn at B site caused the decrease in oxygen permeability. As for the effect of A-site substitution, prominent promotion was observed by the substitution of Ba for 30% of Sr, and Ba0.3Sr0.7FeO3-δ was found to be one of most excellent oxygen permeable materials with the permeation flux of 3.0 cm3(STP) cm−2 min−1 at 900 °C. Reduction tolerance was evaluated by TG measurements in a 5%H2/N2 stream up to 1000 °C. After the TG measurements, crystal structures of La-Sr-Co-Fe-O and Sr-Fe-(Mn)-O perovskites were decomposed or transformed into low oxygen permeable phases, but the perovskite-type structure of Ba-Sr-Fe-(Mn)-O survived. The Fe/Mn-based perovskites with high oxygen permeability and exceeding reduction tolerance could be used as stable membrane materials for membrane reactors catalyzing NO-CH4 reaction and the partial oxidation of CH4 into synthesis gas.

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