%0 Conference Paper
%A Hofmann, G.
%A Rochet, A.
%A Baier, S.
%A Casapu, M.
%A Ritter, S.
%A Wilde, F.
%A Ogurreck, M.
%A Beckmann, F.
%A Grunwaldt, J-D
%T Ageing Effects on Exhaust Gas Catalysts: Microscopic Changes Captured by X-Ray Tomography
%J Journal of physics / Conference Series
%V 499
%N conference 1 
%@ 1742-6596
%C Bristol
%I IOP Publ.
%M DESY-2014-02743
%B Journal of Physics: Conference Series
%P 012017
%D 2014
%X In this work we examine the different aspects of catalyst ageing with effects ranging from the nano to the macro scale. Underlining the general importance of combining different characterisation techniques, like transmission electron microscopy (TEM), X-ray absorption spectroscopy (XAS) and X-ray diffraction (XRD) for the nanoscale, we focus on the application of X-ray absorption micro-computed tomography (micro-CT) to capture macroscopic changes in the um to mm scale. Two series of tomographic measurements were carried out: (i) investigation of three differently treated samples by collecting one channel from a fresh, a conditioned and an aged monolith and (ii) examination of one single coated honeycomb channel with 4 wt
%B International Congress on X-Ray Optics and Microanalysis
%C 2 Sep 2013 - 6 Sep 2013, Hamburg (Germany)
Y2 2 Sep 2013 - 6 Sep 2013
M2 Hamburg, Germany
%F PUB:(DE-HGF)8 ; PUB:(DE-HGF)16
%9 Contribution to a conference proceedingsJournal Article
%U <Go to ISI:>//WOS:000338041300017
%R 10.1088/1742-6596/499/1/012017
%U https://bib-pubdb1.desy.de/record/168942