Pulsed constant voltage electrophoretic deposition of YSZ electrolyte coating on conducting porous Ni-YSZ cermet for SOFCs applications

被引:18
作者
Oskouyi, Omid Ekhlasi [1 ]
Shahmiri, Mohammad [1 ]
Maghsoudipour, Amir [2 ]
Hasheminiasari, Masood [1 ]
机构
[1] Iran Univ Sci & Technol, Sch Met & Mat Engn, Tehran, Iran
[2] Mat & Energy Res Ctr, Karaj, Iran
关键词
YSZ; Solid oxide fuel cell; Pulse width; Electrophoretic deposition; OXIDE FUEL-CELLS; ANODE MATERIALS; FILM; TEMPERATURE; PERFORMANCE; MICROSTRUCTURE; FABRICATION; NICKEL;
D O I
10.1016/j.jallcom.2019.01.166
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
In the present investigation, solid oxide fuel cells (SOFCs) electrolyte coatings of 8 mol% Y2O3 stabilized ZrO2 (YSZ) are applied on Ni-YSZ cermet fuel cell anode in ethanol by pulsed constant voltage-electrophoretic deposition (EPD). Press pressure and sintering temperature as two of the most effective parameters for NiO-YSZ composite fabrication are investigated. In order to create electrically conductive anodes, NiO-YSZ composite is reduced in H-2 atmosphere while its crystallinity being studied by X-ray diffraction (XRD). Pulsed constant voltage EPD process parameters such as pulse width, applied voltage and total deposition time are examined. The YSZ electrolyte film is sintered for 4 hat two different temperatures of 1300 and 1350 C. Optical microscope (OM) is used to study the surface quality of coating. Substrate morphology and the quality of YSZ electrolyte film are investigated by scanning electron microscope (SEM). Atomic force microscopy (AFM) is used to probe the surface roughness and the morphology of green and sintered coatings. Results show improved deposition yield by increasing applied voltage and total deposition time. Uniform and dense coating was deposited at voltage of 35 V, pulse width of 1 ms, 50% duty cycle and total deposition time of 6 min having the thickness and roughness of about 17 +/- 1 mu m and 166 +/- 5 nm, respectively. (C) 2019 Published by Elsevier B.V.
引用
收藏
页码:220 / 227
页数:8
相关论文
共 33 条
  • [1] Advanced anodes for high-temperature fuel cells
    Atkinson, A
    Barnett, S
    Gorte, RJ
    Irvine, JTS
    Mcevoy, AJ
    Mogensen, M
    Singhal, SC
    Vohs, J
    [J]. NATURE MATERIALS, 2004, 3 (01) : 17 - 27
  • [2] Application of constant current pulse to suppress bubble incorporation and control deposit morphology during aqueous electrophoretic deposition (EPD)
    Besra, L.
    Uchikoshi, T.
    Suzuki, T. S.
    Sakka, Y.
    [J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2009, 29 (10) : 1837 - 1845
  • [3] Electrophoretic deposition on non-conducting substrates: The case of YSZ film on NiO-YSZ composite substrates for solid oxide fuel cell application
    Besra, Laxmidhar
    Compson, Charles
    Liu, Meilin
    [J]. JOURNAL OF POWER SOURCES, 2007, 173 (01) : 130 - 136
  • [4] A review on fundamentals and applications of electrophoretic deposition (EPD)
    Besra, Laxmidhar
    Liu, Meilin
    [J]. PROGRESS IN MATERIALS SCIENCE, 2007, 52 (01) : 1 - 61
  • [5] Experimental verification of pH localization mechanism of particle consolidation at the electrode/solution interface and its application to pulsed DC electrophoretic deposition (EPD)
    Besra, Laxmidhar
    Uchikoshi, Tetsuo
    Suzuki, Tohru S.
    Sakka, Yoshio
    [J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2010, 30 (05) : 1187 - 1193
  • [6] Application of electrophoretic and electrolytic deposition techniques in ceramics processing
    Boccaccini, AR
    Zhitomirsky, I
    [J]. CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE, 2002, 6 (03) : 251 - 260
  • [7] Structure/performance relations for Ni/yttria-stabilized zirconia anodes for solid oxide fuel cells
    Brown, M
    Primdahl, S
    Mogensen, M
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2000, 147 (02) : 475 - 485
  • [8] Microstructure and performance of micro-tubular solid oxide fuel cells made by aqueous electrophoretic deposition
    Cherng, J. S.
    Wu, C. C.
    Chen, W. H.
    Yeh, T. H.
    [J]. CERAMICS INTERNATIONAL, 2013, 39 : S601 - S604
  • [9] Nanostructured zirconia thin film fabricated by electrophoretic deposition technique
    Das, Debasish
    Bagchi, Biswajoy
    Basu, Rajendra N.
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 693 : 1220 - 1230
  • [10] Fergus J., 2016, Solid oxide fuel cells: materials properties and performance