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Published in:
Analysis on Energy Efficiency and Optimization of HIsmelt Process Read chapter Read first chapter

2019 | OriginalPaper | Chapter

Electrophoretically Deposited Copper Manganese Spinel Coatings for Prevention of Chromium Poisoning in Solid Oxide Fuel Cells

Authors : Zhihao Sun, Srikanth Gopalan, Uday B. Pal, Soumendra N. Basu

Published in: Energy Technology 2019

Publisher: Springer International Publishing

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Abstract

Cr2O3 scales formed on ferritic steel interconnects in intermediate temperature solid oxide fuel cell (SOFC) stacks have the problem of Cr-poisoning that can deteriorate cell performance. Applying a protective coating on the surface of the interconnects is an effective strategy to solve this problem. (CuMn)3O4 spinel is a potential candidate-coating material. In this study, the performance of the CuMn1.8O4 at 750 °C, the conductivities of the reaction layer formed between the coating and Cr2O3 scale, and the reduction of Cr ion diffusivity in Ni-doped (CuMn)3O4 were explored. CuMn1.8O4 coatings were found to be good Cr diffusion barriers at 750 °C, with the coatings also acting as an excellent Cr getter. The conductivities of the reaction layer were found to be at least two orders of magnitude higher than that of Cr2O3, indicating the formation of the reaction layer is favorable compared to the thickening of the Cr2O3 scale at the coating/alloy interface. Ni-doped of (CuMn)3O4 decreased the diffusivity of Cr, making (CuMnNi)3O4 a promising candidate-coating material.

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previous chapter Comparison of Solar-Selective Absorbance Properties of TiN, TiNxOy, and TiO2 Thin Films
next chapter Observations on Accelerated Oxidation of a Ferritic Stainless Steel Under Dual Atmosphere Exposure Conditions
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Metadata
Title
Electrophoretically Deposited Copper Manganese Spinel Coatings for Prevention of Chromium Poisoning in Solid Oxide Fuel Cells
Authors
Zhihao Sun
Srikanth Gopalan
Uday B. Pal
Soumendra N. Basu
Copyright Year
2019
Book
Energy Technology 2019

Print ISBN: 978-3-030-06208-8

Electronic ISBN: 978-3-030-06209-5

Copyright Year: 2019

DOI
https://doi.org/10.1007/978-3-030-06209-5_27