% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @ARTICLE{NilssonPingel:842561, author = {NilssonPingel, Torben and Fouladvand, Sheedeh and Heggen, Marc and Dunin-Borkowski, Rafal and Jäger, Wolfgang and Westenberger, Peter and Phifer, Daniel and McNeil, Jace and Skoglundh, Magnus and Grönbeck, Henrik and Olsson, Eva}, title = {{T}hree-{D}imensional {P}robing of {C}atalyst {A}geing on {D}ifferent {L}ength {S}cales: {A} {C}ase {S}tudy of {C}hanges in {M}icrostructure and {A}ctivity for {CO} {O}xidation of a {P}t-{P}d/{A}l 2 {O} 3 {C}atalyst}, journal = {ChemCatChem}, volume = {9}, number = {18}, issn = {1867-3880}, address = {Weinheim}, publisher = {WILEY-VCH Verlag}, reportid = {FZJ-2018-00780}, pages = {3544 - 3553}, year = {2017}, abstract = {The effects of thermal treatment on the microstructure of a Pt–Pd/Al2O3 oxidation catalyst and its activity for CO oxidation have been studied. The microstructural analysis was performed by using several high-resolution electron microscopy techniques such as STEM, FIB/SEM slice $\&$ view, SEM and EDX. A combination of these analytic techniques and advanced TEM specimen preparation allowed for three-dimensional probing at different length scales, avoiding the random character of conventionally crushed powder specimens owing to site specificity. A core–shell distribution of Pt–Pd nanoparticles within the alumina support particles, with enlarged nanoparticles (≈1.5 to 40 nm) present in the shell and small nanoparticles (<1.5 nm) in the core, was revealed in the untreated catalyst. A more uniform spatial distribution developed during thermal treatment at 700 °C or higher with larger nanoparticles forming in the core. Accompanying measurements of the catalytic activity for CO oxidation showed the detrimental effect of sintering of the small nanoparticles on the reaction rate and apparent activation energy of the reaction.}, cin = {ER-C-1}, ddc = {540}, cid = {I:(DE-Juel1)ER-C-1-20170209}, pnm = {143 - Controlling Configuration-Based Phenomena (POF3-143)}, pid = {G:(DE-HGF)POF3-143}, typ = {PUB:(DE-HGF)16}, UT = {WOS:000411499300014}, doi = {10.1002/cctc.201700479}, url = {https://juser.fz-juelich.de/record/842561}, }