Stabilization of Ni-YSZ Anodes in Solid Oxide Fuel Cells using an ALD-Grown Aluminum Titanate Interlayer

Feng, Zhuoming; Hansen, Katherine; Bhandari, Harish B.; Vohs, John M.

doi:10.1149/2754-2734/ad38cd

Title: Stabilization of Ni-YSZ Anodes in Solid Oxide Fuel Cells using an ALD-Grown Aluminum Titanate Interlayer

Journal Article · 08 April 2024 · ECS Advances

DOI: https://doi.org/10.1149/2754-2734/ad38cd · OSTI ID:2337516

^[1];

^[2]; Bhandari, Harish B. ^[2];

^[3]

University of Pennsylvania, Philadelphia, PA (United States); Radiation Monitoring Devices (RMD)
Radiation Monitoring Device Inc., Watertown, MA (United States)
University of Pennsylvania, Philadelphia, PA (United States)

The effect of an Al₂TiO₅ (ALT) interlayer between Ni and YSZ on enhancing the thermal stability of Ni-YSZ solid oxide fuel cell was examined. Atomic layer deposition (ALD) was used to provide precise control of the structure and thickness of the ALT interlayer. The study's findings demonstrate that a 2 nm thick ALT interlayer deposited by ALD does not adversely affect the cell's ohmic resistance and effectively prevents Ni sintering and the loss of active area during high-temperature heat treatments. ALT layers thicker than 2 nm, although they enhanced Ni stability, were found to impede oxygen ion transport in the electrode and significantly increase the ohmic resistance of the cell, leading to a decline in performance.

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Research Organization:: Radiation Monitoring Devices (RMD) Inc., Watertown, MA (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE); USDOE Office of Science (SC)

Grant/Contract Number:: SC0022769

OSTI ID:: 2337516

Journal Information:: ECS Advances, Journal Name: ECS Advances Journal Issue: 2 Vol. 3; ISSN 2754-2734

Publisher:: IOP PublishingCopyright Statement

Country of Publication:: United States

Language:: English

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