TJ336 : Feasibility of manufacturing of zirconia baxsed micro solid oxide fuel cell by electrophoretic method
Thesis > Central Library of Shahrood University > Mechanical Engineering > MSc > 2015
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Abstarct: Fuel cells are electrochemical devices that convert the chemical energy of a reaction into electrical energy. Micro tubular solid oxide fuel cell is a type of solid oxide fuel cell with a tubular cross section and micro-scale in thickness that has less than 5mm diameter. Electrophoretic deposition (EPD) is one of the colloidal processes used for fabrication of ceramics product. In this project, the non-aqueous EPD method was used for the fabrication of micro-tubular SOFCs. For this purpose, constructive depositions of the porous anode laxyer (YSZ–NiO), dense electrolyte laxyer (YSZ) and porous cathode laxyer (YSZ-LSM) were carried out on the graphite rod substrate, respectively. Each of the laxyers was dried before the next laxyer deposition and then prepared samples were pre-sintered at 900 °C in order to burn out graphite substrates. The voltage produced by micro fuel cells made using electrochemical impedance was investigated. The effect of deposition time and voltage and sintering temperature were investigated on laxyers weight and laxyers porosity and then optimum values of voltage and time were attained. Results from zeta potential tests on various suspensions used for each laxyer, revealed that prepared suspensions have good stability to deposition of each laxyer. The microstructure and thickness of each laxyer was investigated by Scanning Electron Microscope (SEM) .According to SEM images, anode and cathode laxyers were porous and electrolyte laxyer was dense and the thicknesses of anode, electrolyte and cathode were 126 µm, 101 µm and 71 µm, respectively. produced voltage from micro tubular SOFC was investigated and was measured 0.38 V 600 °C.
Keywords:
#Solid oxide fuel cell #Micro-tubular cell #ElectroPhoretic Deposition #Zirconia Link
Keeping place: Central Library of Shahrood University
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Keeping place: Central Library of Shahrood University
Visitor: