NOVEL COMPOSITE-BASED CATHODES FOR MOLTEN CARBONATE FUEL CELLS BY ELECTROCHEMICAL MULTICOMPONENT MODIFICATION

2011 ◽  
Vol 04 (04) ◽  
pp. 383-387 ◽  
Author(s):  
LI-JIANG CHEN ◽  
HAI-HUA LIU ◽  
XIAO-LING DONG ◽  
XIAO-PING HONG ◽  
YAN-RONG JIA ◽  
...  

A multicomponent modification on the surface of porous nickel with nanoparticles is conducted by an electrophoretic deposition (EPD) technique to prepare new composite-based cathodes for molten carbonate fuel cells (MCFCs). Two new ternary composite-based cathodes, (nano- LiCoO2-LiFeO2 )- Ni and (nano- LiCoO2-CeO2 )- Ni , are inclined to possess good morphology and homogeneous element distribution when prepared under moderate current density resulting from a medium deposition voltage and suspension pH value in this work. Both composite-based cathodes manifest excellent anti-deformation and anti-dissolution performances under conditions of a simulated MCFC startup stage and are thus expected to be useful for application in the MCFC industry.

2017 ◽  
Vol 42 (25) ◽  
pp. 16235-16243 ◽  
Author(s):  
Mihui Lee ◽  
Chang-Whan Lee ◽  
Hyung-Chul Ham ◽  
Jonghee Han ◽  
Sung Pil Yoon ◽  
...  

Author(s):  
K. Hemmes ◽  
M. Houwing ◽  
N. Woudstra

Direct carbon fuel cells (DCFCs) have great thermodynamic advantages over other high temperature fuel cells such as molten carbonate fuel cells (MCFCs) and solid oxide fuel cells. They can have 100% fuel utilization, no Nernst loss (at the anode), and the CO2 produced at the anode is not mixed with other gases and is ready for re-use or sequestration. So far, only studies have been reported on cell development. In this paper, we study the performance of a CO2-producing DCFC system model. The theoretically predicted advantages that are confirmed on a bench scale are also confirmed on a system level, except for the production of pure CO2. Net system efficiencies of around 78% were found for the developed system. An exergy analysis of the system shows where the losses in the system occur. If the cathode of the DCFC must be operated as a standard MCFC cathode, the required CO2 at the cathode is the reason why a large part of the pure CO2 from the anode is recycled and mixed with the incoming air and cannot be used directly for sequestration. Bench scale studies should be performed to test the minimum amount of CO2 needed at the cathode. This might be lower than in a standard MCFC operation due to the pure CO2 at the anode side that enhances diffusion toward the cathode.


2014 ◽  
Vol 63 ◽  
pp. 6517-6526 ◽  
Author(s):  
Maurizio Spinelli ◽  
Matteo C. Romano ◽  
Stefano Consonni ◽  
Stefano Campanari ◽  
Maurizio Marchi ◽  
...  

2017 ◽  
Vol 142 ◽  
pp. 1496-1501 ◽  
Author(s):  
Jarosław Milewski ◽  
Tomasz Wejrzanowski ◽  
Łukasz Szabłowski ◽  
Robert Baron ◽  
Arkadiusz Szczęśniak ◽  
...  

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