Enhanced electrochemical performance of aluminum and cobalt doped La0.5Sr0.5MnO3 composite oxide anode for direct C3H8 oxidation SOFC

A. M.K. Bahrain, T. Ishihara

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

Abstract

Direct utilization of hydrocarbon fuel for solid oxide fuel cells (SOFC) is a challenge due to anode poisoning and severe coke formation which may lead to total anode deactivation. Perovskite has been extensively studied as a replacement for the traditional Ni-based anode due to its high tolerance to hydrocarbon fuel as well as its remarkable tailored properties. Due to the complicated nature of direct hydrocarbon oxidation in SOFC, the requirement for a suitable anode is often beyond the capabilities of the current material. Here we examine Al and Co doped La0.5Sr0.5MnO3 (LSMAC), a coke tolerant perovskite which is mixed with either Sr0.94Ti0.9Nb0.1O3 (STN), Ce0.8Gd0.2O2 (GDC), Ce0.6Mn0.3Fe0.1O2 (CMF), La0.6Sr0.4Fe0.9Mn0.1O3 (LSFM) or La0.9Sr0.1Ga0.8Mg0.2O3 (LSGM) to be evaluated as composite anodes for solid oxide fuel cells under direct utilization of dry C3H8 fuel. Whilst LSMAC mixed with STN demonstrated remarkable power density improvement over LSMAC from 533 to 831?mW/cm2 in direct C3H8 fuel at 1173?K, drastic decrease is shown when operating at lower temperature. Instead, we report enhanced electrochemical performance from composite LSMAC-GDC at lower temperature owing to faster kinetic reaction and preserved microstructure under reducing environment.

Original languageEnglish
Title of host publication4th Electronic and Green Materials International Conference 2018, EGM 2018
EditorsMuhammad Mahyiddin Ramli, Voon Chun Hong, Liu Wei-Wen, Mohamad Faris Mohamad Fathil, Siti Salwa Mat Isa, Nur Syakimah Ismail
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735417717
DOIs
Publication statusPublished - Dec 6 2018
Event4th Electronic and Green Materials International Conference 2018, EGM 2018 - Bandung, Indonesia
Duration: Jul 27 2018Jul 28 2018

Publication series

NameAIP Conference Proceedings
Volume2045
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other4th Electronic and Green Materials International Conference 2018, EGM 2018
CountryIndonesia
CityBandung
Period7/27/187/28/18

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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