Volume 8, Issue 9 2000350
Full Paper

Internal Reforming Solid Oxide Fuel Cell System Operating under Direct Ethanol Feed Condition

Mohamed A. Elharati

Mohamed A. Elharati

Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA, 99164 USA

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Martinus Dewa

Martinus Dewa

School of Mechanical and Materials Engineering, Washington State University, Pullman, WA, 99164 USA

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Qusay Bkour

Qusay Bkour

Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA, 99164 USA

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A. Mohammed Hussain

Corresponding Author

A. Mohammed Hussain

Technology Planning and Research Department, Nissan Technical Centre North America, Farmington Hills, MI, 48335 USA

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Yohei Miura

Yohei Miura

Nissan Research Centre, Nissan Motor Corporation Limited, Kanagawa, 237-8523 Japan

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Song Dong

Song Dong

Nissan Research Centre, Nissan Motor Corporation Limited, Kanagawa, 237-8523 Japan

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Yosuke Fukuyama

Yosuke Fukuyama

Nissan Research Centre, Nissan Motor Corporation Limited, Kanagawa, 237-8523 Japan

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Nilesh Dale

Nilesh Dale

Technology Planning and Research Department, Nissan Technical Centre North America, Farmington Hills, MI, 48335 USA

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Oscar G. Marin-Flores

Oscar G. Marin-Flores

Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA, 99164 USA

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Su Ha

Corresponding Author

Su Ha

Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA, 99164 USA

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First published: 27 June 2020
Citations: 19

Abstract

A button-typed single solid oxide fuel cell (SOFC) with an internal catalytic reforming layer is tested for direct-fed ethanol SOFC technology. This catalytic functional layer consists of 5 wt% Rh/CeZrO2 catalyst and is applied in front of conventional nickel–yttria–stabilized zirconia (Ni–YSZ) anode to convert the ethanol fuel (35 vol%) into a hydrogen-rich gas stream via the ethanol steam reforming reaction under harsh operating conditions for 24 h (steam-to-carbon [S/C] ratio = 3.1, 600 °C, and weight hourly space velocity [WHSV] of 176 h−1). The X-ray powder diffraction (XRD) analysis and transmission electron microscopy (TEM) images reveal highly dispersed Rh nanoparticles with an average size of 2 nm over CeZrO2 support. Unlike the button cell without the catalytic functional layer, the electrochemical performance of the button cell with the catalytic functional layer illustrates a high coking resistance while maintaining a good power density output. The proposed SOFC with the catalytic functional layer is a viable solution for future electric cars with bioethanol-fed SOFC technology.

Conflict of Interest

The authors declare no conflict of interest.

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