Electrochemical properties of electrospinning-fabricated layered perovskite used in cathode materials for a low temperature-operating solid oxide fuel cell

被引：8

作者：

Jin, Sangbeom ^{[1
]}

Choi, Won Seok ^{[2
]}

Baek, Seung-Wook ^{[3
]}

Shin, Tae Ho ^{[4
]}

Park, Jun-Young ^{[5
]}

Kim, Jung Hyun ^{[1
,6
]}

机构：

[1] Hanbat Natl Univ, Dept Adv Mat Sci & Engn, 125 Dongseo Daero, Daejeon 34158, South Korea

[2] Hanbat Natl Univ, Dept Elect Engn, 125 Dongseo Daero, Daejeon 34158, South Korea

[3] KRISS, Ctr Energy Mat Metrol, Div Ind Metrol, 267 Gajeong Ro, Daejeon 34113, South Korea

[4] KICET, Div Energy & Environm, 101 Soho Ro, Jinju Si 52851, Gyeongsangnam D, South Korea

[5] Sejong Univ, Dept Nanotechnol & Adv Mat Engn, HMC, 209 Neungdong Ro, Seoul 05006, South Korea

[6] Univ St Andrews, Sch Chem, St Andrews KY16 9ST, Fife, Scotland

来源：

THIN SOLID FILMS | 2018年 / 660卷

基金：

新加坡国家研究基金会;

关键词：

Low temperature-operating solid oxide fuel cell; Cathode; Electrospinning; Fiber; Microstructure; Electrical conductivity; Area specific resistances; NANOFIBERS; FIBERS; LN=PR; GD;

D O I：

10.1016/j.tsf.2018.04.020

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, the microstructural and electrochemical properties of linear type nanofibers obtained by adding SmBa0.5Sr0.5Co2O5+d (SBSCO) layered perovskite oxide were investigated for use as cathode materials in a low temperature-operating solid oxide fuel cell. Linear type SBSCO fiber and Ce0.9Gd0.1O2-d coated SBSCO-fiber were fabricated using the electrospinning process. It was confirmed that the area specific resistance (0.75 Omega cm(2)) of the obtained SBSCO-fiber cathode was much lower than that (1.25 Omega cm(2)) of a powder-type SBSCO cathode at 550 degrees C. The result shows that the SBSCO fiber cathode exhibits lower polarization resistance in low temperature ranges than the powder SBSCO cathode materials do. A significantly lower activation energy (0.76 eV) was observed in fiber SBSCO cathode than in the nanostructured La0.8Sr0.2Co0.2Fe0.8O3-d ones which were used as control at 1.53 eV.

引用

页码：663 / 671

页数：9

共 19 条

[1] Application of titania fibers obtained by electrospinning in photocatalytic degradation of methyl orange [J].

Alves, Annelise K. ;

Berutti, Felipe A. ;

Bergmann, Carlos P. .

JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING, 2009, 44 (09) :835-840

[2] Analysis of the oxygen reduction process on SOFC composite electrodes [J].

Barbucci, A ;

Viviani, M ;

Panizza, M ;

Delucchi, M ;

Cerisola, G .

JOURNAL OF APPLIED ELECTROCHEMISTRY, 2005, 35 (04) :399-403

[3]

Erqing Z., 2013, INT J HYDROGEN ENERG, V38, P6821

[4] Polymer nanofibers assembled by electrospinning [J].

Frenot, A ;

Chronakis, IS .

CURRENT OPINION IN COLLOID & INTERFACE SCIENCE, 2003, 8 (01) :64-75

[5] Fabrication of La0.2Sr0.8Co0.8Fe0.2O3-δ mesoporous membranes on porous supports from polymeric precursors [J].

Jin, WQ ;

Li, SG ;

Huang, P ;

Xu, NP ;

Shi, J .

JOURNAL OF MEMBRANE SCIENCE, 2000, 170 (01) :9-17

[6] Optimization of Sr content in layered SmBa1-xSrxCo2O5+δ perovskite cathodes for intermediate-temperature solid oxide fuel cells [J].

Jun, Areum ;

Kim, Junyoung ;

Shin, Jeeyoung ;

Kim, Guntae .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2012, 37 (23) :18381-18388

[7] Electrochemical Investigation of Composite Cathodes with SmBa0.5Sr0.5Co2O5+δ Cathodes for Intermediate Temperature-Operating Solid Oxide Fuel Cell [J].

Kim, Jung Hyun ;

Cassidy, Mark ;

Irvine, John T. S. ;

Bae, Joongmyeon .

CHEMISTRY OF MATERIALS, 2010, 22 (03) :883-892

[8] Advanced Electrochemical Properties of LnBa0.5Sr0.5Co2O5+δ (Ln=Pr, Sm, and Gd) as Cathode Materials for IT-SOFC [J].

Kim, Jung Hyun ;

Cassidy, Mark ;

Irvine, John T. S. ;

Bae, Joongmyeon .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2009, 156 (06) :B682-B689

[9] Nano-Composite Ni-Gd0.1Ce0.9O1.95 Anode Functional Layer for Low Temperature Solid Oxide Fuel Cells [J].

Lee, Jin Goo ;

Park, Myeong Geun ;

Hyun, Sang-Hoon ;

Shul, Yong Gun .

ELECTROCHIMICA ACTA, 2014, 129 :100-106

[10] Tailoring gadolinium-doped ceria-based solid oxide fuel cells to achieve 2Wcm-2 at 550°C [J].

Lee, Jin Goo ;

Park, Jeong Ho ;

Shul, Yong Gun .

NATURE COMMUNICATIONS, 2014, 5

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