Exsolution of nano metal particle on anode for increased performance at low temperature operation

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Spinel oxide (CuFe2O4) has been studied as anode for solid oxide fuel cells. Although CuFe2O4 spinel structure was decomposed by reduction atmosphere observed by SEM-EDX, TEM-EDX and XRD, the decomposed CuFe2O4 became metallic phase with the exsolved nano size alloy particles, which were composite of Cu rich Cu-Fe and Fe rich Fe-Cu metal on anode. According to power generation properties, alloy anode formed from CuFe2O4 showed the maximum power density (MPD) of 611 mW/cm2 at 1073 K and 101 mW/cm2 at 873 K. Comparing to Ni-Fe (9:1 wt.%) alloy anode, alloy anode from CuFe2O4 reduction showed significantly decreased anodic polarization resistance, which was measured by impedance spectroscope and so high power density was assigned to nano alloy particles.

Original languageEnglish
Title of host publicationSolid Oxide Fuel Cells 16, SOFC 2019
EditorsK. Eguchi, S. C. Singhal
PublisherElectrochemical Society Inc.
Pages1915-1922
Number of pages8
Edition1
ISBN (Electronic)9781607688747
DOIs
Publication statusPublished - Jan 1 2019
Event16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019 - Kyoto, Japan
Duration: Sep 8 2019Sep 13 2019

Publication series

NameECS Transactions
Number1
Volume91
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Conference

Conference16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019
CountryJapan
CityKyoto
Period9/8/199/13/19

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Fingerprint Dive into the research topics of 'Exsolution of nano metal particle on anode for increased performance at low temperature operation'. Together they form a unique fingerprint.

  • Cite this

    Kang, B. S., Takagaki, A., & Ishihara, T. (2019). Exsolution of nano metal particle on anode for increased performance at low temperature operation. In K. Eguchi, & S. C. Singhal (Eds.), Solid Oxide Fuel Cells 16, SOFC 2019 (1 ed., pp. 1915-1922). (ECS Transactions; Vol. 91, No. 1). Electrochemical Society Inc.. https://doi.org/10.1149/09101.1915ecst