Ethanol internal reforming in solid oxide fuel cells: A path toward high performance metal-supported cells for vehicular applications

Dogdibegovic, Emir; Fukuyama, Yosuke; Tucker, Michael C.

doi:10.1016/j.jpowsour.2019.227598

Title: Ethanol internal reforming in solid oxide fuel cells: A path toward high performance metal-supported cells for vehicular applications

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Abstract

Internal reforming of ethanol fuel was explored on high-performance metal-supported solid oxide fuel cells (MS-SOFCs) with infiltrated catalysts. The hydrogen concentration and internal reforming effects were evaluated systematically with different fuels including: hydrogen, simulated reformate, anhydrous ethanol, ethanol water blend, and hydrogen-nitrogen mixtures. A simple infiltration of Ni reforming catalyst into 40 vol.% Ni-Sm_0.20Ce_0.80O_2-δ (Ni-SDCN₄₀) and fuel-side metal support leads to complete internal reforming, as validated by comparison to simulated reformate. The performance difference between hydrogen and fully-reformed ethanol is attributed entirely to decrease in hydrogen concentration. High peak power density was achieved for a range of conditions, for example 1.0 W cm^-2 at 650 °C in ethanol-water blend, and 1.4 W cm^-2 at 700 °C in anhydrous ethanol fuel. Initial durability tests with ethanol-water blend show promising stability for 100 hours at 700 °C and 0.7 V. Carbon is not deposited in the Ni-SDCN₄₀ anode during operation.

Authors:

Dogdibegovic, Emir ^[1]; Fukuyama, Yosuke ^[2];

^[1]

Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Nissan Motors Company, Ltd, Kanagawa (Japan)

Publication Date:: Thu Dec 12 00:00:00 EST 2019

Research Org.:: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Sponsoring Org.:: USDOE Advanced Research Projects Agency - Energy (ARPA-E); USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1578190

Alternate Identifier(s):: OSTI ID: 1579409

Grant/Contract Number:: AC02-05CH11231

Resource Type:: Accepted Manuscript

Journal Name:: Journal of Power Sources

Additional Journal Information:: Journal Volume: 449; Journal Issue: C; Journal ID: ISSN 0378-7753

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 25 ENERGY STORAGE; Solid oxide fuel cell; Metal-support; Infiltration; Ethanol internal reforming

Citation Formats


                    Dogdibegovic, Emir, Fukuyama, Yosuke, and Tucker, Michael C. Ethanol internal reforming in solid oxide fuel cells: A path toward high performance metal-supported cells for vehicular applications.  United States: N. p., 2019. 
Web.  doi:10.1016/j.jpowsour.2019.227598.

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                    Dogdibegovic, Emir, Fukuyama, Yosuke, & Tucker, Michael C. Ethanol internal reforming in solid oxide fuel cells: A path toward high performance metal-supported cells for vehicular applications.  United States.  https://doi.org/10.1016/j.jpowsour.2019.227598

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                    Dogdibegovic, Emir, Fukuyama, Yosuke, and Tucker, Michael C. Thu .  
"Ethanol internal reforming in solid oxide fuel cells: A path toward high performance metal-supported cells for vehicular applications".  United States.  https://doi.org/10.1016/j.jpowsour.2019.227598.  https://www.osti.gov/servlets/purl/1578190.

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@article{osti_1578190,

  title        = {Ethanol internal reforming in solid oxide fuel cells: A path toward high performance metal-supported cells for vehicular applications},

  author       = {Dogdibegovic, Emir and Fukuyama, Yosuke and Tucker, Michael C.},

  abstractNote = {Internal reforming of ethanol fuel was explored on high-performance metal-supported solid oxide fuel cells (MS-SOFCs) with infiltrated catalysts. The hydrogen concentration and internal reforming effects were evaluated systematically with different fuels including: hydrogen, simulated reformate, anhydrous ethanol, ethanol water blend, and hydrogen-nitrogen mixtures. A simple infiltration of Ni reforming catalyst into 40 vol.% Ni-Sm0.20Ce0.80O2-δ (Ni-SDCN40) and fuel-side metal support leads to complete internal reforming, as validated by comparison to simulated reformate. The performance difference between hydrogen and fully-reformed ethanol is attributed entirely to decrease in hydrogen concentration. High peak power density was achieved for a range of conditions, for example 1.0 W cm-2 at 650 °C in ethanol-water blend, and 1.4 W cm-2 at 700 °C in anhydrous ethanol fuel. Initial durability tests with ethanol-water blend show promising stability for 100 hours at 700 °C and 0.7 V. Carbon is not deposited in the Ni-SDCN40 anode during operation.},

  doi          = {10.1016/j.jpowsour.2019.227598},

  journal      = {Journal of Power Sources},

  number       = C,

  volume       = 449,

  place        = {United States},

  year         = {Thu Dec 12 00:00:00 EST 2019},

  month        = {Thu Dec 12 00:00:00 EST 2019}

}

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