Synthesis of Ni/YSZ based anode and investigation of effect of PVA as pore-former upon porosity, microstructure and thermal behavior for potential use in solid oxide fuel cells (SOFCs)

Author(s):  
Mariah Batool ◽  
Maria Sattar ◽  
Ussama K. Barki ◽  
Zuhair S. Khan
2017 ◽  
Vol 78 (1) ◽  
pp. 1447-1456
Author(s):  
Rob James Turnbull ◽  
Neil Shearer ◽  
Callum Wilson

2015 ◽  
Vol 1087 ◽  
pp. 299-303
Author(s):  
Muhazri Abd Mutalib ◽  
Mohd Hafiz Dzarfan Othman ◽  
Madzlan Aziz ◽  
Mukhlis A. Rahman ◽  
Juhana Jaafar ◽  
...  

Solid oxide fuel cells (SOFCs) have been considered as a promising electricity-generation technology because of the relatively high efficiency in the conversion of chemical energy to electrical power. The cathode performance of solid oxide fuel cells (SOFC) depends substantially on its surface area, porosity and microstructure, and therefore the processing method used is very important in determining cathode performance. By optimizing the structural characteristic of the layer, the cathode performance during fuel cell performance can be fully maximized. Polyether ether ketone (PEEK) pore former was introduced in the processing method of cathode layer. The cathode layer was brush painted and sintered at 1200°C for 5 hours. TGA analysis is used to specify the sintering curve for the cathode layer. In addition, three point bending test is used to investigate the change in bending force with the addition of pore former. Characterization via FESEM allows inspection over the induced pore geometry and distribution along the layer. The study can produce a comprehensive structural analysis on the pore former addition in the precursor solution of the cathode layer for SOFC application.


2020 ◽  
Vol 11 (2) ◽  
pp. 132-139
Author(s):  
Nurul Ashikin Mohd Nazrul Aman ◽  
Andanastuti Muchtar ◽  
Masli Irwan Rosli ◽  
Nurul Akidah Baharuddin ◽  
Mahendra Rao Somalu ◽  
...  

2018 ◽  
Vol 268 ◽  
pp. 195-201 ◽  
Author(s):  
Miguel A. Laguna-Bercero ◽  
Amir R. Hanifi ◽  
Lucile Menand ◽  
Navjot K. Sandhu ◽  
Neil E. Anderson ◽  
...  

2019 ◽  
Vol 2019 (0) ◽  
pp. 0171
Author(s):  
Kohei Yamazaki ◽  
Masashi Kishimoto ◽  
Hiroshi Iwai ◽  
Motohiro Saito ◽  
Hideo Yoshida

Author(s):  
Rachel R. Essex ◽  
J. I. Rossero ◽  
G. Jurisch ◽  
C.G. Takoudis

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.


2011 ◽  
Vol 92 (2) ◽  
pp. 183-189 ◽  
Author(s):  
A. Díaz-Parralejo ◽  
E.M. Cuerda-Correa ◽  
A. Macías-García ◽  
M.A. Díaz-Díez ◽  
J. Sánchez-González

2020 ◽  
Author(s):  
Yidong Jiang ◽  
Wenfei Mo ◽  
Tianyu Cao ◽  
Yixiang Shi ◽  
Ningsheng Cai

Abstract Solid oxide fuel cells (SOFCs) with liquid antimony anodes (LAAs) are potential energy conversion technology for impurity-containing fuels. Atmospheric plasma spraying (APS) technology has become a promising LAA-SOFC preparation method because of its economy and convenience. In this paper, button SOFCs with different cathode materials and pore former ratio were prepared by the APS method and measured at 750℃. The effect of cathode structure on the electrochemical performance of the LAA-SOFCs was analyzed, and an optimized spraying method for LAA-SOFCs was developed. A tubular LAA-SOFC was prepared by the APS method based on the optimized spraying method and a peak power of 2.5 W was reached. The tubular cell was also measured at a constant current of 2 A for 20 hours and fed with a sulfur-containing fuel to demonstrate the impurity resistance and the long-term stability.


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