Journal Article

FZJ-2015-07470

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Oxidation and Reduction Kinetics of Iron and Iron Based Alloys Used as Storage Materials in High Temperature Battery

Niewolak, L. (Corresponding author)FZJ* ; Zurek, J.FZJ* ; Menzler, N. H.FZJ* ; Grüner, D.FZJ* ; Quadakkers, W. J.FZJ*

2015
Elsevier Science Amsterdam [u.a.]

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Please use a persistent id in citations: doi:10.1179/0960340914Z.00000000080

Abstract: The background of the present studies relates to the development of a novel high temperature energy storage system based on a solid oxide cell. The energy is stored in a metal/metal oxide system which is part of the fuel side of the cell. The aim of the present study was to evaluate the suitability of pure iron and iron based model alloys as possible energy storage material for this type of high temperature battery system at a service temperature of 800°C. For this purpose the oxidation and reduction behaviour of iron in Ar–H2–(H2O) environments has been examined. The reduction process in Ar–2%H2 of the wüstite scale formed on pure iron in Ar–H2–H2O was hampered by the formation of a continuous, gas tight metallic iron layer on its surface. Possible approaches to increase oxidation and reduction kinetics by optimised alloy compositions for the Fe storage are discussed.

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Contributing Institute(s):

1. Werkstoffstruktur und -eigenschaften (IEK-2)
2. Werkstoffsynthese und Herstellungsverfahren (IEK-1)

Research Program(s):

1. 111 - Efficient and Flexible Power Plants (POF3-111) (POF3-111)

Appears in the scientific report 2015

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Database coverage:
Current Contents - Engineering, Computing and Technology ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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