Highly cost-effective and sulfur/coking resistant VOx-grafted TiO2 nanoparticles as an efficient anode catalyst for direct conversion of dry sour methane in solid oxide fuel cells

2015 ◽  
Vol 3 (47) ◽  
pp. 23973-23980 ◽  
Author(s):  
Alfonso Garcia ◽  
Ning Yan ◽  
Adrien Vincent ◽  
Anand Singh ◽  
Josephine M. Hill ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Metal Oxide ◽  
Solid Oxide Fuel Cells ◽  
Tio2 Nanoparticles ◽  
Methane Conversion ◽  
Cost Effective ◽  
Direct Conversion ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Anode Catalyst

In this work, we show that grafted metal oxide can be a highly cost-effective and active anode for solid oxide fuel cells for sour methane conversion.

Thin Film Solid Oxide Fuel Cells Deposited by Spray Pyrolysis

2010 ◽  
Vol 7 (2) ◽  
Author(s):  
Yongsong Xie ◽  
Roberto Neagu ◽  
Ching-Shiung Hsu ◽  
Xinge Zhang ◽  
Cyrille Decès-Petit ◽  
...  
Keyword(s):  
Thin Film ◽  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Spray Pyrolysis ◽  
Spray Deposition ◽  
Cost Effective ◽  
Solid Oxide ◽  
Electrochemical Performances ◽  
Oxide Fuel ◽  
Deposition Processes

Two techniques of spray pyrolysis, namely, electrostatic and pneumatic spray deposition, were used to deposit samaria-doped ceria (SDC) electrolyte and lanthanum strontium cobalt ferrite (LSCF) cathode on cermet or metal supported anodes for solid oxide fuel cells (SOFCs) operated at reduced temperature. The deposition processes, the properties of the deposited films, and the electrochemical performances of the fabricated cells are reported in this paper. The deposited SDC electrolytes were dense and gas-tight, and had good adhesion to the underlying anodes. The deposited LSCF cathode had a preferred morphology to facilitate the transport of oxygen gas and effective contact with the electrolyte. Button cell testing indicated that the SOFCs with electrolyte or cathode deposited by spray pyrolysis had good electrochemical performance. This study demonstrated that spray pyrolysis is a cost-effective process for fabricating thin film SOFCs, especially metal supported SOFCs.

Evaluation of molybdenum carbide as anode catalyst for proton-conducting hydrogen and ethane solid oxide fuel cells

2012 ◽  
Vol 15 (1) ◽  
pp. 81-84 ◽  
Author(s):  
Jian-Hui Li ◽  
Xian-Zhu Fu ◽  
Jing-Li Luo ◽  
Karl T. Chuang ◽  
Alan R. Sanger
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Molybdenum Carbide ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Anode Catalyst ◽  
Proton Conducting

Ni0.85La0.05Mg0.05Ce0.05Ox–δ Based Anode Catalyst for Biogas-Fueled Solid Oxide Fuel Cells

2017 ◽  
Vol 9 (9) ◽  
pp. 1653-1657
Author(s):  
Tuan Anh Trieu ◽  
Dimpul Konwar ◽  
Bang Ju Park ◽  
Hyon Hee Yoon
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Anode Catalyst

Preparation of La/Co/Ni-based anode catalyst for biogas-fueled solid oxide fuel cells

2015 ◽  
Vol 35 (1-4) ◽  
pp. 75-80 ◽  
Author(s):  
Ngoc Thi Quynh Nguyen ◽  
Tuan Anh Trieu ◽  
Hyon Hee Yoon
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Anode Catalyst

LSM Protective Coatings on Stainless Steel as Interconnects for Solid Oxide Fuel Cells

2014 ◽  
Vol 1644 ◽  
Author(s):  
Ryan Eriksen ◽  
Srikanth Gopalan ◽  
Sanjay Sampath ◽  
Yikai Chen
Keyword(s):  
Stainless Steel ◽  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
High Temperatures ◽  
Active Sites ◽  
Protective Coatings ◽  
Cost Effective ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
In Series

ABSTRACTOne of the major barriers to the adoption of solid oxide fuel cells (SOFCs) is the short lifetime of the fuel cell stacks. A stack consists of a number of cells in series separated by an interconnect. Due to the high temperatures necessary for SOFCs, typical commercial interconnects are ceramic. Great attention has been paid to decreasing the operating temperature of SOFCs in order to extend the life and decrease the cost of the stack. As operating temperatures decrease below 1000°C, alternative interconnect materials become viable. Stainless steel interconnects are more cost effective than ceramic interconnects but the high temperatures and the oxidizing environment of the cathode leads to the formation of a chromium oxide scale that increases the stack resistance. Chromium from the stainless steel can also enter the vapor phase and redeposit on the cathode thereby blocking the electrochemically active sites. One method to neutralize these effects is to coat the metallic interconnect in a ceramic such as La.8Sr.2MnO3 (LSM). The coating acts as a diffusion barrier both against chromium diffusing into the cathode and oxygen diffusing into the interconnect. In this study LSM has been deposited using plasma spray and tested in a dual atmosphere setup using impedance spectroscopy to analyze the performance of the coatings at various temperatures. The area specific resistance and chemical composition of the scale was examined in order to determine the affect of the LSM coating.

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