Rational anode design for protonic ceramic fuel cells by a one-step phase inversion method

Gao, Jun; Meng, Yuqing; Hong, Tao; Kim, Sungkyu; Lee, Shiwoo; He, Kai; Brinkman, Kyle S.

doi:10.1016/j.jpowsour.2019.02.040

Title: Rational anode design for protonic ceramic fuel cells by a one-step phase inversion method

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Abstract

A one-step phase inversion method was applied to fabricate an optimized anode structure for protonic ceramic fuel cells (PCFCs). The phase inversion process utilized raw starting chemicals, instead of crystalline BaCe_0.7Z_r0.1Y_0.1Yb_0.1O_3-δ (BCZYYb) powder in an energy and time saving process. The resulting large and fingerlike pores exhibited enhanced performance as compared to the disordered pores produced by conventional preparation of anode structures using dry pressing methods. The electrochemical performance of the rational designed anode supported cell were 491, 402, 302 and 200 mW cm^-2 at 700, 650, 600 and 550 °C, respectively, which was nearly twice than the cell with dry pressing anode. An equivalent circuit modeling method was used to separate the anode polarization resistance from the single cell, confirming that the overall cell performance improvements were attributed to microstructural modifications of the anode by the phase inversion process. The one-step phase inversion method demonstrated great promise for improved processing of fuel cells and separation membranes.

Authors:

Gao, Jun ^[1]; Meng, Yuqing ^[1];

^[1]; Kim, Sungkyu ^[1]; Lee, Shiwoo ^[2]; He, Kai ^[1];

^[3]

Clemson Univ., SC (United States)
National Energy Technology Lab. (NETL), Morgantown, WV (United States); Leidos Researc hSUpport Team, Morgantown, WV (United States)
Clemson Univ., SC (United States); National Energy Technology Lab. (NETL), Morgantown, WV (United States)

Publication Date:: Wed Feb 20 00:00:00 EST 2019

Research Org.:: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)

Sponsoring Org.:: USDOE Office of Fossil Energy (FE)

OSTI Identifier:: 1571268

Alternate Identifier(s):: OSTI ID: 1636519

Grant/Contract Number:: 89243318CFE000003; 17-12798; SC0012704

Resource Type:: Accepted Manuscript

Journal Name:: Journal of Power Sources

Additional Journal Information:: Journal Volume: 418; Journal Issue: C; Journal ID: ISSN 0378-7753

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 25 ENERGY STORAGE

Citation Formats


                    Gao, Jun, Meng, Yuqing, Hong, Tao, Kim, Sungkyu, Lee, Shiwoo, He, Kai, and Brinkman, Kyle S. Rational anode design for protonic ceramic fuel cells by a one-step phase inversion method.  United States: N. p., 2019. 
Web.  doi:10.1016/j.jpowsour.2019.02.040.

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                    Gao, Jun, Meng, Yuqing, Hong, Tao, Kim, Sungkyu, Lee, Shiwoo, He, Kai, & Brinkman, Kyle S. Rational anode design for protonic ceramic fuel cells by a one-step phase inversion method.  United States.  https://doi.org/10.1016/j.jpowsour.2019.02.040

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                    Gao, Jun, Meng, Yuqing, Hong, Tao, Kim, Sungkyu, Lee, Shiwoo, He, Kai, and Brinkman, Kyle S. Wed .  
"Rational anode design for protonic ceramic fuel cells by a one-step phase inversion method".  United States.  https://doi.org/10.1016/j.jpowsour.2019.02.040.  https://www.osti.gov/servlets/purl/1571268.

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@article{osti_1571268,

  title        = {Rational anode design for protonic ceramic fuel cells by a one-step phase inversion method},

  author       = {Gao, Jun and Meng, Yuqing and Hong, Tao and Kim, Sungkyu and Lee, Shiwoo and He, Kai and Brinkman, Kyle S.},

  abstractNote = {A one-step phase inversion method was applied to fabricate an optimized anode structure for protonic ceramic fuel cells (PCFCs). The phase inversion process utilized raw starting chemicals, instead of crystalline BaCe0.7Zr0.1Y0.1Yb0.1O3-δ (BCZYYb) powder in an energy and time saving process. The resulting large and fingerlike pores exhibited enhanced performance as compared to the disordered pores produced by conventional preparation of anode structures using dry pressing methods. The electrochemical performance of the rational designed anode supported cell were 491, 402, 302 and 200 mW cm-2 at 700, 650, 600 and 550 °C, respectively, which was nearly twice than the cell with dry pressing anode. An equivalent circuit modeling method was used to separate the anode polarization resistance from the single cell, confirming that the overall cell performance improvements were attributed to microstructural modifications of the anode by the phase inversion process. The one-step phase inversion method demonstrated great promise for improved processing of fuel cells and separation membranes.},

  doi          = {10.1016/j.jpowsour.2019.02.040},

  journal      = {Journal of Power Sources},

  number       = C,

  volume       = 418,

  place        = {United States},

  year         = {Wed Feb 20 00:00:00 EST 2019},

  month        = {Wed Feb 20 00:00:00 EST 2019}

}

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