Articles tagged "in-situ"

The 16th European Microscopy Congress 2016
Electrical transport-induced transformations in filled carbon nanotubes imaged in situ by scanning-transmission electron microscopy
Juan G Lozano (1), Zabeada Aslam (1), Rebecca J Nicholls (1), Antal A Koos (1), Frank Dillon (1), Michael Sarahan (2), Peter D Nellist (1), Nicole Grobert (1)
1. Department of Materials, University of Oxford, Oxford, Royaume Uni 2. SuperSTEM Laboratory, STFC Daresbury, Daresbury, Royaume Uni
Fe-filled CNTs have been proposed as perfect candidates for a large and varied number of applications, ranging from the biological to optoelectronics or memory storage…
The 16th European Microscopy Congress 2016
The Determining Role of Solution Chemistry in Radiation-Induced Nanoparticles Synthesis in the STEM
Patricia Abellan (1), Ilke Arslan (2), Naila Al Hasan (2), Nigel D. Browning (2), James E. Evans (2), Jay W. Grate (2), Ayman M. Karim (3), Ivan T. Lucas (4), Trevor H. Moser (5), Lucas R. Parent (6), Chiwoo Park (7), Taylor J. Woehl (8)
1. SuperSTEM Laboratory, Daresbury, Royaume Uni 2. Pacific Northwest National Laboratory, Richland, Etats-Unis 3. Virginia Polytechnic Institute and State University, Blacksburg, Etats-Unis 4. UPMC University Paris 06, Paris, France 5. Michigan Technological University, Houghton, Etats-Unis 6. University of California - San Diego, San Diego, Etats-Unis 7. Florida State University, Tallahassee, Etats-Unis 8. National Institute of Standards and Technology, Boulder, Etats-Unis
In the last decades, radiolytic synthesis routes have exploited the chemical effects of the absorption of high-energy radiation on precursor solutions, to form nanostructures by…
The 16th European Microscopy Congress 2016
In-situ propagation of Al in germanium nanowires observed by transmission electron microscopy
Khalil EL HAJRAOUI (1), Eric Robin (2), Miguel Lopez-Haro (3), Clemens Zeiner (4), Florian Brunbauer (4), Sébastian Kral (4), Alois Lugstein (4), Jean-Luc Rouvière (2), Martien Den Hertog (1)
1. Institut Néel, Université Grenoble Alpes, CNRS , Grenoble, France 2. INAC / SP2M, Université Grenoble Alpes, CEA, Grenoble, France 3. Inorganic chemistry department, University of Cadiz, Cadiz, Espagne 4. Institute for solid state electronics, University of Technology, Vienna, Autriche
Semiconductor nanowires (NWs) are promising candidates for many device applications ranging from electronics and optoelectronics to energy conversion and spintronics. However, typical NW devices are…
The 16th European Microscopy Congress 2016
Electron Microscopy of Copper Nanoparticle Growth
Christian F. Elkjær (1, 2), Roy van den Berg (3), Cedric J Gommes (4), Ib Chorkendorff (2), Jens Sehested (1), Petra E. de Jongh (3), Krijn P. de Jong (3), S Helveg (1)
1. Haldor Topsøe A/S, Kgs. Lyngby, Danemark 2. CINF, Technical University of Denmark, Kgs. Lyngby, Danemark 3. Inorganic Chemistry and Catalysis, Utrecht University, Utrecht, Pays-Bas 4. Department of Chemical Engineering, University of Liège, Liêge, Belgique
Understanding processes leading to the formation of nanoparticles is of utmost importance for tailoring their size, shape and spatial arrangements, which are crucial for the…
The 16th European Microscopy Congress 2016
In-Situ ESTEM Observations of Asymmetric Oxidation and Reduction in Copper Nanoparticles
Alec LaGrow (1, 2), Michael Ward (1, 2), David Lloyd (1, 2), Edward Boyes (1, 2, 3), Pratibha Gai (1, 2, 4)
1. The York JEOL Nanocentre, University of York, York, Royaume Uni 2. Department of Physics, University of York, York, Royaume Uni 3. Department of Electronics, University of York, York, Royaume Uni 4. Department of Chemistry, University of York, York, Royaume Uni
A fundamental understanding of the oxidation and corrosion mechanisms of metals is of critical importance to improving their performance in catalysis, and other industrial applications.1…
The 16th European Microscopy Congress 2016
Developments in unconventional dark field TEM for characterising nanocatalyst systems
Gnanavel Thirunavukkarasu (1, 2), Michael R Ward (1, 2), Pratibha L Gai (1, 2, 3), Edward D Boyes (1, 2, 4)
1. The York JEOL Nanocentre, University of York, York, Royaume Uni 2. Department of Physics, University of York, York, Royaume Uni 3. Department of Chemistry, University of York, York, Royaume Uni 4. Department of Electronics, University of York, York, Royaume Uni
Recent methods of dark field TEM are being explored to extent the information and frequency of data capture in dynamic in-situ experiments on nanocatalyst systems…
The 16th European Microscopy Congress 2016
Graphene-supported microwell liquid cell for in situ studies in TEM and SEM
Andreas Hutzler (1), Robert Branscheid (2), Michael P. M. Jank (3), Lothar Frey (1, 3), Erdmann Spiecker (2)
1. Chair of Electron Devices (LEB), Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Allemagne 2. Insitute of Micro- and Nanostructure Research and Center for Nanoanalysis and Electron Microscopy (CENEM), Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Allemagne 3. Fraunhofer Institute for Integrated Systems and Device Technology (IISB), Erlangen, Allemagne
Liquid cell transmission electron microscopy (LCTEM) is used for in situ investigations of dynamic nanoparticulate processes in aqueous and nonaqueous solutions. In contrast to complementary…
The 16th European Microscopy Congress 2016
In-situ atomic scale studies of ammonia synthesis over ruthenium nanocatalysts
Robert Mitchell (1), Edward Boyes (2), Pratibha Gai (1)
1. Departments of Chemistry, Physics and York JEOL Nanocentre, University of York, York, Royaume Uni 2. Departments of Electronics, Physics and York JEOL Nanocentre, University of York, York, Royaume Uni
Ammonia is an important chemical for the production of fertilisers and in chemical synthesis. Catalyst materials are employed to improve the rate of formation of…
The 16th European Microscopy Congress 2016
In situ TEM observation of electromigration in Ni nanobridges
Tatiana Kozlova (1), Henny W. Zandbergen (1)
1. HREM, Kavli Institute of Nanoscience, Delft University of Technology, Delft, Pays-Bas
Using in situ scanning transmission electron microscopy (STEM) (FEI Titan microscope operating at 300 keV), a microelectromechanical system (MEMS) chip and a dedicated biasing and heating…
The 16th European Microscopy Congress 2016
Behaviour of platinum nanoparticles under reducing and oxidising conditions using ESTEM
Michael Ward (1, 2), Ed Boyes (1, 3, 2), Pratibha Gai (1, 4, 2)
1. Department of Physics, University of York, York, Royaume Uni 2. York Nanocentre, University of York, York, Royaume Uni 3. Department of Electronics, University of York, York, Royaume Uni 4. Department of Chemistry, University of York, York, Royaume Uni
Platinum nanoparticles are well-known to be catalytically active in a wide variety of important chemical processes including hydrogen fuel cells 1 and diesel oxidation catalysts…