A highly active hybrid catalyst modified (La0.60Sr0.40)0.95Co0.20Fe0.80O3-δ cathode for proton conducting solid oxide fuel cells

doi:https://doi.org/10.1016/j.jpowsour.2018.03.058

Title: A highly active hybrid catalyst modified (La _0.60Sr _0.40) _0.95Co _0.20Fe _0.80O _3-δ cathode for proton conducting solid oxide fuel cells

Abstract

The sluggish reaction kinetics in the cathode usually leads to considerable cathode polarization resistance, hindering the development of proton conducting solid oxide fuel cells (H-SOFCs) operated at intermediate temperatures (400–650 °C). In this paper, to address this problem, for the first time, a novel hybrid catalyst consisting of PrNi _0.5Mn _0.5O ₃ and PrOx is impregnated in the (La _0.60Sr _0.40) _0.95Co _0.20Fe _0.80O _3-δ (LSCF) cathode of H-SOFCs, resulting in significant enhancement of the cathode reaction kinetics. Single cells with impregnated LSCF cathode and BaZr _0.8Y _0.2O ₃ (BZY) electrolyte yield a maximum power density (MPD) of 0.198 W cm ^-2 at 600 °C, more than doubled of that with blank LSCF cathode (0.083 W cm ^-2). ECR and EIS studies reveal that the hybrid catalyst can substantially accelerate the oxygen-ion transfer and oxygen dissociation-absorption processes in the cathode, resulting in significantly lower polarization resistance and higher MPD. In addition, the hybrid catalyst possesses good chemical and microstructural stability at 600 °C. Consequently, the single cells with impregnated LSCF cathode show excellent durability. Finally, this study shows that the impregnation of this novel hybrid catalyst in the cathode could be a promising approach to improve the performance and stabilitymore » of H-SOFCs.« less

Authors:

^[1]; Tao, Zetian ^[2]; Hong, Tao ^[3]; Wang, Xiaoming ^[4]; Chen, Fanglin ^[1]

Univ. of South Carolina, Columbia, SC (United States). Dept. of Mechanical Engineering
Univ. of South Carolina, Columbia, SC (United States). Dept. of Mechanical Engineering; Yancheng Inst. of Technology (China). Jiangsu Collaborative Innovation Center for Ecological Building Materials and Environmental Protection Equipments
Clemson Univ., SC (United States). Dept. of Materials Science and Engineering
Univ. of South Carolina, Columbia, SC (United States). Dept. of Mechanical Engineering; Zhejiang Normal Univ., Jinhua (China). College of Engineering

Publication Date:: 2018-04-06

Research Org.:: Univ. of South Carolina, Columbia, SC (United States); Yancheng Inst. of Technology (China); Zhejiang Normal Univ., Jinhua (China)

Sponsoring Org.:: USDOE Office of Fossil Energy (FE); National Natural Science Foundation of China (NNSFC); Zhejiang Provincial Natural Science Foundation of China

OSTI Identifier:: 1432994

Grant/Contract Number:: FE0031176; 21406190; LY15E020006

Resource Type:: Journal Article: Accepted Manuscript

Journal Name:: Journal of Power Sources

Additional Journal Information:: Journal Volume: 389; Journal ID: ISSN 0378-7753

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE; solid oxide fuel cells; proton conducting ceramics; LSCF; impregnation

Citation Formats


                    Lei, Libin, Tao, Zetian, Hong, Tao, Wang, Xiaoming, and Chen, Fanglin. A highly active hybrid catalyst modified (La0.60Sr0.40)0.95Co0.20Fe0.80O3-δ cathode for proton conducting solid oxide fuel cells.  United States: N. p., 2018. 
        Web.  doi:10.1016/j.jpowsour.2018.03.058.

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                    Lei, Libin, Tao, Zetian, Hong, Tao, Wang, Xiaoming, & Chen, Fanglin. A highly active hybrid catalyst modified (La0.60Sr0.40)0.95Co0.20Fe0.80O3-δ cathode for proton conducting solid oxide fuel cells.  United States.  https://doi.org/10.1016/j.jpowsour.2018.03.058

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                    Lei, Libin, Tao, Zetian, Hong, Tao, Wang, Xiaoming, and Chen, Fanglin. Fri .  
        "A highly active hybrid catalyst modified (La0.60Sr0.40)0.95Co0.20Fe0.80O3-δ cathode for proton conducting solid oxide fuel cells".  United States.  https://doi.org/10.1016/j.jpowsour.2018.03.058.  https://www.osti.gov/servlets/purl/1432994.

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@article{osti_1432994,

  title        = {A highly active hybrid catalyst modified (La0.60Sr0.40)0.95Co0.20Fe0.80O3-δ cathode for proton conducting solid oxide fuel cells},

  author       = {Lei, Libin and Tao, Zetian and Hong, Tao and Wang, Xiaoming and Chen, Fanglin},

  abstractNote = {The sluggish reaction kinetics in the cathode usually leads to considerable cathode polarization resistance, hindering the development of proton conducting solid oxide fuel cells (H-SOFCs) operated at intermediate temperatures (400–650 °C). In this paper, to address this problem, for the first time, a novel hybrid catalyst consisting of PrNi0.5Mn0.5O3 and PrOx is impregnated in the (La0.60Sr0.40)0.95Co0.20Fe0.80O3-δ (LSCF) cathode of H-SOFCs, resulting in significant enhancement of the cathode reaction kinetics. Single cells with impregnated LSCF cathode and BaZr0.8Y0.2O3 (BZY) electrolyte yield a maximum power density (MPD) of 0.198 W cm-2 at 600 °C, more than doubled of that with blank LSCF cathode (0.083 W cm-2). ECR and EIS studies reveal that the hybrid catalyst can substantially accelerate the oxygen-ion transfer and oxygen dissociation-absorption processes in the cathode, resulting in significantly lower polarization resistance and higher MPD. In addition, the hybrid catalyst possesses good chemical and microstructural stability at 600 °C. Consequently, the single cells with impregnated LSCF cathode show excellent durability. Finally, this study shows that the impregnation of this novel hybrid catalyst in the cathode could be a promising approach to improve the performance and stability of H-SOFCs.},

  doi          = {10.1016/j.jpowsour.2018.03.058},

  url          = {https://www.osti.gov/biblio/1432994},
  journal      = {Journal of Power Sources},

  issn         = {0378-7753},

  number       = ,

  volume       = 389,

  place        = {United States},

  year         = {2018},

  month        = {4}

}

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https://doi.org/10.1016/j.jpowsour.2018.03.058

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Works referencing / citing this record:

Progress Report on Proton Conducting Solid Oxide Electrolysis Cells
journal, July 2019

Lei, Libin; Zhang, Jihao; Yuan, Zhihao
Advanced Functional Materials, Vol. 29, Issue 37
https://doi.org/10.1002/adfm.201903805

Tuning the defects of the triple conducting oxide BaCo 0.4 Fe 0.4 Zr 0.1 Y 0.1 O 3−δ perovskite toward enhanced cathode activity of protonic ceramic fuel cells
journal, January 2019

Ren, Rongzheng; Wang, Zhenhua; Xu, Chunming
Journal of Materials Chemistry A, Vol. 7, Issue 31
https://doi.org/10.1039/c9ta04335g

Progress Report on Proton Conducting Solid Oxide Electrolysis Cells
journal, July 2019

Lei, Libin; Zhang, Jihao; Yuan, Zhihao
Advanced Functional Materials, Vol. 29, Issue 37
https://doi.org/10.1002/adfm.201903805

Tuning the defects of the triple conducting oxide BaCo 0.4 Fe 0.4 Zr 0.1 Y 0.1 O 3−δ perovskite toward enhanced cathode activity of protonic ceramic fuel cells
journal, January 2019

Ren, Rongzheng; Wang, Zhenhua; Xu, Chunming
Journal of Materials Chemistry A, Vol. 7, Issue 31
https://doi.org/10.1039/c9ta04335g

Effect of Infiltration of Barium Carbonate Nanoparticles on the Electrochemical Performance of La0.6Sr0.4Co0.2Fe0.8O3−δ Cathodes for Protonic Ceramic Fuel Cells
journal, August 2018

Gao, Jun; Meng, Yuqing; Lee, Shiwoo
JOM, Vol. 71, Issue 1
https://doi.org/10.1007/s11837-018-3098-3

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Similar Records

Title: A highly active hybrid catalyst modified (La 0.60Sr 0.40) 0.95Co 0.20Fe 0.80O 3-δ cathode for proton conducting solid oxide fuel cells

Abstract

Citation Formats

Progress Report on Proton Conducting Solid Oxide Electrolysis Cells journal, July 2019

Tuning the defects of the triple conducting oxide BaCo 0.4 Fe 0.4 Zr 0.1 Y 0.1 O 3−δ perovskite toward enhanced cathode activity of protonic ceramic fuel cells journal, January 2019

Progress Report on Proton Conducting Solid Oxide Electrolysis Cells journal, July 2019

Tuning the defects of the triple conducting oxide BaCo 0.4 Fe 0.4 Zr 0.1 Y 0.1 O 3−δ perovskite toward enhanced cathode activity of protonic ceramic fuel cells journal, January 2019

Effect of Infiltration of Barium Carbonate Nanoparticles on the Electrochemical Performance of La0.6Sr0.4Co0.2Fe0.8O3−δ Cathodes for Protonic Ceramic Fuel Cells journal, August 2018

Title: A highly active hybrid catalyst modified (La _0.60Sr _0.40) _0.95Co _0.20Fe _0.80O _3-δ cathode for proton conducting solid oxide fuel cells

Progress Report on Proton Conducting Solid Oxide Electrolysis Cells
journal, July 2019

Tuning the defects of the triple conducting oxide BaCo 0.4 Fe 0.4 Zr 0.1 Y 0.1 O 3−δ perovskite toward enhanced cathode activity of protonic ceramic fuel cells
journal, January 2019

Progress Report on Proton Conducting Solid Oxide Electrolysis Cells
journal, July 2019

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journal, August 2018