Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5146436 | International Journal of Hydrogen Energy | 2017 | 8 Pages |
Abstract
The MnCu0.5Co1.5O4 spinel coating is proposed as a protective coating for SUS430 alloy to improve its oxidation resistance and prevent chromium vaporization. The coated alloy is exposed to dual atmosphere (Air/H2-3%H2O) at 750 °C for 200 h, exhibiting a stable spinel structure on the air side, but reduced to MnO, Cu and Co on the fuel side. The coating layer could maintain integrated and dense with a thickness of 13-14 μm. The experiment results shown that the MnCu0.5Co1.5O4 coating is an effective diffusion barrier that can inhibit oxidation and chromium vaporization of metallic interconnect. The relatively low amount of Cr deposition on LSM cathode on coated condition is considered associating with the stable electrochemical performance under current density of 400 mA cmâ2. The above results indicate that MnCu0.5Co1.5O4 spinel is a promising coating for interconnect alloy of solid oxide fuel cell.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Jun Li, Chunyan Xiong, Jin Li, Dong Yan, Jian Pu, Bo Chi, Li Jian,