A Highly Efficient and Robust Nanofiber Cathode for Solid Oxide Fuel Cells

Yu Chen; Yunfei Bu; Yanxiang Zhang; Ruiqiang Yan; Dong Ding; Bote Zhao; Seonyoung Yoo; Dai Dang; Renzong Hu; Chenghao Yang; Meilin Liu

doi:10.1002/aenm.201601890

A Highly Efficient and Robust Nanofiber Cathode for Solid Oxide Fuel Cells

Yu Chen
, Yunfei Bu
, Yanxiang Zhang
, Ruiqiang Yan
, Dong Ding
, Bote Zhao
, Seonyoung Yoo
, Dai Dang
, Renzong Hu
, Chenghao Yang
, Meilin Liu^*

^*Corresponding author for this work

Georgia Institute of Technology
Harbin Institute of Technology
South China University of Technology

Research output: Contribution to journal › Article › peer-review

200 Scopus citations

Abstract

Improving the performance of solid oxide fuel cells (SOFC) at intermediate temperatures has been a great challenge for the development of a new generation of cheap and durable IT-SOFC. A unique cell design consisting of a Ni-BaZr_0.1Ce_0.7Y_0.1Yb_0.1O_3-Δ anode a Gd-doped ceria electrolyte and a La_0.6Sr_0.4Co_0.2Fe_0.8O₃ (LSCF) fiber cathode to show a high-performance low-temperature SOFC. When evaluated in both symmetrical and single cells the LSCF nanofiber-based cathodes show smaller activation energy and lower polarization resistance for oxygen reduction reaction (ORR) than the nano-LSCF powder. The improvement in ORR kinetics can be attributed to the unique electrode architecture that assists efficient mass/charge transport. Additionally the geometric modelling and simulation indicates that thinner and longer fibers are more efficient in facilitating both mass and charge transport.

Original language	English
Journal	Advanced Energy Materials
Volume	7
Issue number	6
DOIs	https://doi.org/10.1002/aenm.201601890
State	Published - 22 Mar 2017
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

ORR
electrospinning
fuel cells
nanofibers

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10.1002/aenm.201601890

Cite this

@article{65883e48270840be9fe96db807cc4b0c,

title = "A Highly Efficient and Robust Nanofiber Cathode for Solid Oxide Fuel Cells",

abstract = "Improving the performance of solid oxide fuel cells (SOFC) at intermediate temperatures has been a great challenge for the development of a new generation of cheap and durable IT-SOFC. A unique cell design consisting of a Ni-BaZr0.1Ce0.7Y0.1Yb0.1O3-Δ anode a Gd-doped ceria electrolyte and a La0.6Sr0.4Co0.2Fe0.8O3 (LSCF) fiber cathode to show a high-performance low-temperature SOFC. When evaluated in both symmetrical and single cells the LSCF nanofiber-based cathodes show smaller activation energy and lower polarization resistance for oxygen reduction reaction (ORR) than the nano-LSCF powder. The improvement in ORR kinetics can be attributed to the unique electrode architecture that assists efficient mass/charge transport. Additionally the geometric modelling and simulation indicates that thinner and longer fibers are more efficient in facilitating both mass and charge transport.",

keywords = "ORR, electrospinning, fuel cells, nanofibers",

author = "Yu Chen and Yunfei Bu and Yanxiang Zhang and Ruiqiang Yan and Dong Ding and Bote Zhao and Seonyoung Yoo and Dai Dang and Renzong Hu and Chenghao Yang and Meilin Liu",

year = "2017",

month = mar,

day = "22",

doi = "10.1002/aenm.201601890",

language = "英语",

volume = "7",

journal = "Advanced Energy Materials",

issn = "1614-6832",

publisher = "John Wiley and Sons Inc",

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}

TY - JOUR

T1 - A Highly Efficient and Robust Nanofiber Cathode for Solid Oxide Fuel Cells

AU - Chen, Yu

AU - Bu, Yunfei

AU - Zhang, Yanxiang

AU - Yan, Ruiqiang

AU - Ding, Dong

AU - Zhao, Bote

AU - Yoo, Seonyoung

AU - Dang, Dai

AU - Hu, Renzong

AU - Yang, Chenghao

AU - Liu, Meilin

PY - 2017/3/22

Y1 - 2017/3/22

N2 - Improving the performance of solid oxide fuel cells (SOFC) at intermediate temperatures has been a great challenge for the development of a new generation of cheap and durable IT-SOFC. A unique cell design consisting of a Ni-BaZr0.1Ce0.7Y0.1Yb0.1O3-Δ anode a Gd-doped ceria electrolyte and a La0.6Sr0.4Co0.2Fe0.8O3 (LSCF) fiber cathode to show a high-performance low-temperature SOFC. When evaluated in both symmetrical and single cells the LSCF nanofiber-based cathodes show smaller activation energy and lower polarization resistance for oxygen reduction reaction (ORR) than the nano-LSCF powder. The improvement in ORR kinetics can be attributed to the unique electrode architecture that assists efficient mass/charge transport. Additionally the geometric modelling and simulation indicates that thinner and longer fibers are more efficient in facilitating both mass and charge transport.

AB - Improving the performance of solid oxide fuel cells (SOFC) at intermediate temperatures has been a great challenge for the development of a new generation of cheap and durable IT-SOFC. A unique cell design consisting of a Ni-BaZr0.1Ce0.7Y0.1Yb0.1O3-Δ anode a Gd-doped ceria electrolyte and a La0.6Sr0.4Co0.2Fe0.8O3 (LSCF) fiber cathode to show a high-performance low-temperature SOFC. When evaluated in both symmetrical and single cells the LSCF nanofiber-based cathodes show smaller activation energy and lower polarization resistance for oxygen reduction reaction (ORR) than the nano-LSCF powder. The improvement in ORR kinetics can be attributed to the unique electrode architecture that assists efficient mass/charge transport. Additionally the geometric modelling and simulation indicates that thinner and longer fibers are more efficient in facilitating both mass and charge transport.

KW - ORR

KW - electrospinning

KW - fuel cells

KW - nanofibers

UR - https://www.scopus.com/pages/publications/85002741872

U2 - 10.1002/aenm.201601890

DO - 10.1002/aenm.201601890

M3 - 文章

AN - SCOPUS:85002741872

SN - 1614-6832

VL - 7

JO - Advanced Energy Materials

JF - Advanced Energy Materials

IS - 6

ER -

A Highly Efficient and Robust Nanofiber Cathode for Solid Oxide Fuel Cells

Abstract

UN SDGs

Keywords

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