NiFe2O4 Spinel Protection Coating for High-Temperature Solid Oxide Fuel Cell Interconnect Application

Irankhah, Reza; Raissi, Babak; Maghsoudipour, Amir; Irankhah, Abdullah; Ghashghai, Sasan

doi:10.1007/s11665-016-1949-z

Cited by 28 publications

(2 citation statements)

References 49 publications

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“…Different systems of binary spinels, including Mn-Co, Ni-Co, Ni-Fe, and Cu-Mn, have been evaluated and investigated as contact materials in previous reports [12][13][14][15]. The spinels typically possess reasonable conductivity and excellent Cr-blocking ability [16][17][18][19][20][21]. Furthermore, it has been demonstrated that the modification of the spinel by adding different dopants can contribute to better performance, such as electrical conductivity and CTE [22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Investigation of high‐entropy alloy derived spinel‐based layer for SOFC cathode‐side contact application

Yu,

Lin,

et al. 2024

Fuel Cells

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A simulated interconnect/contact/cathode/cathode support test cell is fabricated to investigate the effectiveness of the high‐entropy alloy as the contact material on the microstructure and the performance of the converted spinel‐based layer. Although the CuMnNiFeCo alloy powder is selected as the contact precursor, it showed good sinterability after sintering at 900°C for 2 h in air. The electrical performance of the contact layer is evaluated by the area‐specific resistance measurement, including isothermal exposure and thermal cycling. The compatibility of the contact layer with adjacent components is investigated through observing the cross‐sectional view of the test cell. Furthermore, the effectiveness of the contact layer in inhibiting Cr migration is also assessed.

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Section: Introductionmentioning

confidence: 99%

Investigation of high‐entropy alloy derived spinel‐based layer for SOFC cathode‐side contact application

Yu,

Lin,

et al. 2024

Fuel Cells

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“…Nickel ferrite spinels based on NiFe 2 O 4 are potentially a costeffective alternative and have recently been evaluated as both interconnect coatings and cathode-side contacts. [9][10][11][12][13][14] Although NiFe 2 O 4 and (Mn,Co) 3 O 4 based spinels have been widely studied, there are large discrepancies concerning their reported electrical properties at the SOFC operating temperatures. The conductivity of NiFe 2 O 4 has been reported to be as low as 0.05 S•cm −1 15 to as high as 15.6 S•cm −1 16 at 800 °C in air.…”

mentioning

confidence: 99%

Effect of Off-Stoichiometry on Electrical Conductivity in Ni-Fe and Mn-Co Spinel Systems

Chesson

Zhu

2020

J. Electrochem. Soc.

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This study seeks to clarify the effects of off-stoichiometry on the electrical conductivity of spinels in the (Ni,Fe) 3 O 4 and (Mn,Co) 3 O 4 systems. Spinels with the compositions Ni x Fe 3-x O 4 (where x = 0.85, 0.875, 0.9, 1.0, 1.05, and 1.15) and Mn x Co 3-x O 4 (where x = 1.0, 1.2, 1.35, 1.5, 1.75, and 2.0) were prepared using conventional solid-state process. Electrical conductivity measurements were taken between 500 °C and 800 °C using the 4-point DC method. The conductivity in Ni-Fe spinels increased with increasing Fe content. Similarly, the conductivity of Mn-Co spinels increased drastically with increasing Co content. The coefficients of thermal expansion (CTEs) of these samples were also evaluated. All the (Ni,Fe) 3 O 4 spinels were found to exhibit excellent CTE matching with prospective stack components. However, thermal expansion characteristics were highly dependent on the composition in the (Mn,Co) 3 O 4 system, and only a narrow range of compositions was well-matched in CTE with prospective stack components. The significant effect of cation off-stoichiometry and sample preparation on the electrical behavior of spinels was discussed as a possible explanation for the large discrepancies in reported conductivity values for both systems.

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Oxidation of Nickel-Coated AISI 430 Alloy: Effect of Pre-oxidation and Fe0.5Ni0.5 Inter-diffusion Layer

King

Mahapatra

2020

Oxid Met

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NiFe2O4 Spinel Protection Coating for High-Temperature Solid Oxide Fuel Cell Interconnect Application

Cited by 28 publications

References 49 publications

Investigation of high‐entropy alloy derived spinel‐based layer for SOFC cathode‐side contact application

Investigation of high‐entropy alloy derived spinel‐based layer for SOFC cathode‐side contact application

Effect of Off-Stoichiometry on Electrical Conductivity in Ni-Fe and Mn-Co Spinel Systems

Oxidation of Nickel-Coated AISI 430 Alloy: Effect of Pre-oxidation and Fe0.5Ni0.5 Inter-diffusion Layer

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