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Near Surface Studies on the Role of Graphene Oxide in the Carbon Species Activities in IT-SOFC Cathode Materials

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Abstract:

Active roles of carbon species in solid oxide fuel cell (SOFC) cathode was simulated by adding graphene oxide (GO) into Ba0.5Sr0.5Co0.2Fe0.8 (BSCF) materials prepared by sol-gel method. The mixture was heated up to intermediate temperature SOFC range (650 - 850°C) for a period of 5 hours. A depth-profiling measurement by x-ray photoelectron spectroscopy (XPS) technique was carried out to analyse the carbon species activities at near surface of BSCF cathode. A depth-profiling analysis indicated that the graphene oxide bond components are retained under the cathode surface and does not affected the formation of carbonate phases in BSCF cathode.

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Periodical:

Materials Science Forum (Volume 1010)

Pages:

321-326

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.1010.321

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Online since:

September 2020

Authors:

Darus Murizam*, N.M.N. Azira, Muhammad Asri Idris, Nur Farhana Mohd Yunos

Keywords:

Carbon, Cathode, IT-SOFC

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© 2020 Trans Tech Publications Ltd. All Rights Reserved

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