Effect of nanostructured grains in co-sputtered Ni-GDC thin-film anode on methane conversion kinetics for low temperature solid oxide fuel cells operating on nearly dry methane

Choi, In Won; Yu, Wonjong; Ryu, Seungoh; Lee, Sanghoon; Won, Suk; Cho, Gu Young

doi:10.1016/j.ceramint.2021.12.092

Cited by 8 publications

(2 citation statements)

References 61 publications

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“…For electrochemical characterization, AAO-supported TF-SOFCs were placed in a custom-made test station at 500 °C. − Commercial ceramic-based sealant (Ceramabond 571, Aremco Products, Inc., USA) was used to separate fuel and ambient air at each electrode. Silver paste (597A, Aremco Products, Inc., USA) was applied to the anode side for current collection.…”

Section: Methodsmentioning

confidence: 99%

Nanocrystal Engineering of Thin-Film Yttria-Stabilized Zirconia Electrolytes for Low-Temperature Solid-Oxide Fuel Cells

Ryu,

Choi,

Kim

et al. 2023

ACS Appl. Mater. Interfaces

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Section: Methodsmentioning

confidence: 99%

Nanocrystal Engineering of Thin-Film Yttria-Stabilized Zirconia Electrolytes for Low-Temperature Solid-Oxide Fuel Cells

Ryu,

Choi,

Kim

et al. 2023

ACS Appl. Mater. Interfaces

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“…All SOFCs were electrochemically examined under the conditions of 500 °C, 100 sccm hydrogen for the anode, and ambient air for the cathode. Every cell was mounted on a custom-made test station and operated. − …”

Section: Experimental Detailsmentioning

confidence: 99%

A Self-Crystallized Nanofibrous Ni-GDC Anode by Magnetron Sputtering for Low-Temperature Solid Oxide Fuel Cells

Ryu

Hwang

Jeong

et al. 2023

ACS Appl. Mater. Interfaces

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The optimum composition ratio of the anode cermet (Ni-GDC) for solid oxide fuel cells (SOFCs) varies because the electron-collecting mechanism is different depending on its applications. A Co-sputtering method facilitates ratio control with sputtering power adjustment. However, there is a practical issue with fabricating anode cermet with various ratios attributed to the large sputtering yield gap of the metal target, Ni, and the ceramic target, gadolinia-doped ceria (GDC). Therefore, in this study, a Gd−Ce metal alloy was applied instead of GDC to match the sputtering rate with that of Ni, which enables a wide ratio range achievement. A thin film of Gd−Ce oxidized after deposition and successfully transformed to crystallized GDC under a SOFC operation environment. X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM) confirmed its crystallinity, and the film deposited with various power ratios was sputtered on the ScSZ electrolyte pellet to clarify the optimum Ni-GDC ratio for thin-film SOFCs. Last, the Ni-GDC was applied to anodized aluminum oxide (AAO)-supported SOFCs to maximize the performance. The performance change according to the thickness of Ni-GDC was identified, and the best performance among them was 638 mW/cm 2 at 500 °C.

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A review on the application of magnetron sputtering technologies for solid oxide fuel cell in reduction of the operating temperature

Pan,

Wang,

et al. 2024

International Journal of Hydrogen Energy

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Effect of nanostructured grains in co-sputtered Ni-GDC thin-film anode on methane conversion kinetics for low temperature solid oxide fuel cells operating on nearly dry methane

Cited by 8 publications

References 61 publications

Nanocrystal Engineering of Thin-Film Yttria-Stabilized Zirconia Electrolytes for Low-Temperature Solid-Oxide Fuel Cells

Nanocrystal Engineering of Thin-Film Yttria-Stabilized Zirconia Electrolytes for Low-Temperature Solid-Oxide Fuel Cells

A Self-Crystallized Nanofibrous Ni-GDC Anode by Magnetron Sputtering for Low-Temperature Solid Oxide Fuel Cells

A review on the application of magnetron sputtering technologies for solid oxide fuel cell in reduction of the operating temperature

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