Thermally Induced Diffusion and Restructuring of Iron Triade (Fe, Co, Ni) Nanoparticles Passivated by Several Layers of Gold

Autor: Ferdinand Hofer, Wolfgang Ernst, Ricardo Fernández-Perea, Martin Schnedlitz, Andreas W. Hauser, Maximilian Ingo Lasserus, Daniel Knez, María Pilar de Lara-Castells

Publikováno v: The Journal of Physical Chemistry. C, Nanomaterials and Interfaces
Digital.CSIC. Repositorio Institucional del CSIC
Universidad Pontificia Comillas ICAI-ICADE

9 pags., 5 figs., 3 tabs.
The temperature-induced structural changes of Fe−, Co−, and Ni−Au core−shell nanoparticles with diameters around 5 nm are studied via atomically resolved transmission electron microscopy. We observe structural t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68b480b112c53cbd3789b7096d04a9a1
https://zenodo.org/record/8001630

Vanadium(V) oxide clusters synthesized by sublimation from bulk under fully inert conditions

Autor: Wolfgang Ernst, Andreas W. Hauser, Florian Lackner, Martin Schnedlitz, Maximilian Ingo Lasserus, Roman Messner

Publikováno v: Chemical Science

While laser ablation in combination with electron impact mass spectroscopy yield numerous fragments and reaction products, helium-mediated mass analysis reveals the sublimation from bulk in units of (V2O5)2.
Oxide nanoparticles in the size range

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d8d1615c1a2ca5b49fb7378c2b94ed2f
https://doi.org/10.1039/c8sc05699d

Stability of Core–Shell Nanoparticles for Catalysis at Elevated Temperatures: Structural Inversion in the Ni–Au System Observed at Atomic Resolution

Autor: Martin Schnedlitz, Ralf Meyer, Daniel Knez, Andreas W. Hauser, Wolfgang Ernst, Maximilian Ingo Lasserus, Ferdinand Hofer

Publikováno v: Chemistry of Materials. 30:1113-1120

We present in situ transmission electron microscopy (TEM) studies of nanoscale Ni–Au core–shell particles on heatable TEM grids. The bimetallic clusters, grown fully inert within superfluid helium nanodroplets to avoid any template or solvent eff

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::657ed4bb62bb16d7623ffafd5044dd9b
https://doi.org/10.1021/acs.chemmater.7b05075

Synthesis of nanosized vanadium(v) oxide clusters below 10 nm

Autor: Maximilian, Lasserus, Daniel, Knez, Florian, Lackner, Martin, Schnedlitz, Roman, Messner, Daniel, Schennach, Gerald, Kothleitner, Ferdinand, Hofer, Andreas W, Hauser, Wolfgang E, Ernst

Publikováno v: Physical chemistry chemical physics : PCCP. 21(37)

Vanadium oxide clusters with a mean diameter below 10 nm are investigated by high resolution Scanning Transmission Electron Microscopy (STEM), Electron Energy Loss Spectroscopy (EELS) and UV-vis absorption spectroscopy. The clusters are synthesised b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::d74ca11032c0da2b2b634adf3ba55b93
https://pubmed.ncbi.nlm.nih.gov/31528952

Thermally induced breakup of metallic nanowires: experiment and theory

Autor: Wolfgang Ernst, Daniel Knez, Ferdinand Hofer, Andreas W. Hauser, Maximilian Ingo Lasserus, Martin Schnedlitz

Publikováno v: Physical Chemistry Chemical Physics. 19:9402-9408

We present time-resolved transmission electron microscopy studies of the degradation of Au, Ag, Cu and Ni nanowires deposited on a heated support. The wires are grown under fully inert conditions in superfluid helium droplets and deposited onto amorp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0fb24a37b6d11d310f9d97f896da6be5
https://doi.org/10.1039/c7cp00463j