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Solution Preparation of Li(Co, Fe)O2 Coatings for Molten Carbonate Fuel Cell Components

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Abstract

An aqueous solution process has been used for dip coating onto substrates of 316L stainless steel. Coatings of LiCoO2, Li(Co0.5Fe0.5)O2 and LiFeO2 were applied and heat treated to 650°C for 3 hrs. Thermal analysis, X-ray diffraction analysis, and SEM analysis were carried out to characterize the microstructure of the coatings. Results showed that the coatings transformed from a gel to a porous, crystalline layer between 270 and 350°C. Microhardness measurements at low load (50 g) were used as an indication of the surface coverage. Samples subjected to 10 thermal cycles at 10°C/min to 650°C and back to ambient, to simulate use in a molten carbonate fuel cell, showed no decrease in microhardness.

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Authors and Affiliations

  1. Ceramic & Materials Engineering, Rutgers-the State University of New Jersey, 607 Taylor Road, Piscataway, NJ, 08854-8065, USA

    W. Chen & L.C. Klein

  2. Evercel, Inc., 3 Great Pasture Road, Danbury, CT, 06813-1305, USA

    C. Huang

Authors
  1. W. Chen
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  2. L.C. Klein
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  3. C. Huang
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Chen, W., Klein, L. & Huang, C. Solution Preparation of Li(Co, Fe)O2 Coatings for Molten Carbonate Fuel Cell Components. Journal of Sol-Gel Science and Technology 21, 203–211 (2001). https://doi.org/10.1023/A:1011234621460

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  • DOI: https://doi.org/10.1023/A:1011234621460

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