Journal Article

FZJ-2017-01267

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Energy-filtered environmental transmission electron microscopy for the assessment of solid-gas reactions at elevated temperature:NiO/YSZ-H$_{2}$ as a case study

Jeangros, Q. (Corresponding author) ; Hansen, T. ; Wagner, J. B. ; Dunin-Borkowski, R.FZJ* ; Hébert, C. ; van Herle, J. ; Hessler - Wyser, A.

2016
Elsevier Science Amsterdam

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Please use a persistent id in citations: doi:10.1016/j.ultramic.2016.06.005

Abstract: A novel approach, which is based on the analysis of sequences of images recorded using energy-filtered transmission electron microscopy and can be used to assess the reaction of a solid with a gas at elevated temperature, is illustrated for the reduction of a NiO/ceramic solid oxide fuel cell anode in 1.3 mbar of H2. Three-window elemental maps and jump-ratio images of the O K edge and total inelastic mean free path images are recorded as a function of temperature and used to provide local and quantitative information about the reaction kinetics and the volume changes that result from the reaction. Under certain assumptions, the speed of progression of the reaction front in all three dimensions is obtained, thereby providing a three-dimensional understanding of the reaction.

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Contributing Institute(s):

1. Mikrostrukturforschung (PGI-5)
2. Physik Nanoskaliger Systeme (ER-C-1)

Research Program(s):

1. 143 - Controlling Configuration-Based Phenomena (POF3-143) (POF3-143)

Appears in the scientific report 2016

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Database coverage:
; BIOSIS Previews ; Current Contents - Life Sciences ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; NCBI Molecular Biology Database ; Nationallizenz ; No Authors Fulltext ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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