J
Jakob Birkedal Wagner
Researcher at Technical University of Denmark
Publications - 226
Citations - 10084
Jakob Birkedal Wagner is an academic researcher from Technical University of Denmark. The author has contributed to research in topics: Nanowire & Catalysis. The author has an hindex of 51, co-authored 221 publications receiving 8579 citations. Previous affiliations of Jakob Birkedal Wagner include Odense University & Lund University.
Papers
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Journal ArticleDOI
Atom-Resolved Imaging of Dynamic Shape Changes in Supported Copper Nanocrystals
Poul L. Hansen,Jakob Birkedal Wagner,Stig Helveg,Jens R. Rostrup-Nielsen,Bjerne S. Clausen,Henrik Topsøe +5 more
TL;DR: In situ transmission electron microscopy is used to obtain atom-resolved images of copper nanocrystals on different supports, which are catalysts for methanol synthesis and hydrocarbon conversion processes for fuel cells.
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Atomic-Resolution in Situ Transmission Electron Microscopy of a Promoter of a Heterogeneous Catalyst
Thomas Willum Hansen,Jakob Birkedal Wagner,Poul Hansen,Søren Dahl,Haldor F A Topsoe,Claus J. H. Jacobsen +5 more
TL;DR: In the most active ruthenium catalyst for ammonia synthesis known so far, the barium promoter is shown to be located in two different phases in the catalyst, suggesting increased activity is suggested to be related to a two-dimensional barium-oxygen overlayer on the r Ruthenium crystals.
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Optical properties of rotationally twinned InP nanowire heterostructures.
Jiming Bao,David C. Bell,Federico Capasso,Jakob Birkedal Wagner,Thomas Mårtensson,Johanna Trägårdh,Lars Samuelson +6 more
TL;DR: A technique so that both transmission electron microscopy and microphotoluminescence can be performed on the same semiconductor nanowire over a large range of optical power, thus allowing us to directly correlate structural and optical properties of rotationally twinned zinc blende InP nanowires.
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Giant, level-dependent g factors in InSb nanowire quantum dots.
Henrik Nilsson,Philippe Caroff,Claes Thelander,Marcus Larsson,Jakob Birkedal Wagner,Lars-Erik Wernersson,Lars Samuelson,Hongqi Xu +7 more
TL;DR: The measurements show that the quantum levels of the InSb quantum dots have giant g factors, with absolute values up to approximately 70, the largest value ever reported for semiconductor quantum dots, which indicates that considerable contributions from the orbital motion of electrons are preserved in the measured InB nanowire quantum dots.
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Strain mapping in free-standing heterostructured wurtzite InAs/InP nanowires
Magnus Larsson,Jakob Birkedal Wagner,Mathias Wallin,Paul Håkansson,Linus Fröberg,Lars Samuelson,L. Reine Wallenberg +6 more
TL;DR: In this paper, the strain distribution in heterostructured wurtzite InAs/InP nanowires is measured by a peak finding technique using high resolution transmission electron microscopy images.