Adsorption of oleic acid on magnetite facets

Autor: Marcus Creutzburg, Mine Konuk, Steffen Tober, Simon Chung, Björn Arndt, Heshmat Noei, Robert H. Meißner, Andreas Stierle

Publikováno v: Communications Chemistry, Vol 5, Iss 1, Pp 1-9 (2022)

Metal oxide nanoparticles functionalized by organic molecules are important building blocks for nanocomposites. Here, the authors study the adsorption of oleic acid on magnetite (001) and (111) surfaces experimentally by SXRD, LEED, FT-IRRAS and XRR,

Externí odkaz: https://doaj.org/article/52ae832c15be4bb3bdbcd597627b83f9

Observation of iron diffusion in the near-surface region of magnetite at 470 K

Autor: Steffen Tober, Marcus Creutzburg, Björn Arndt, Konstantin Krausert, Stefan Mattauch, Alexandros Koutsioubas, Sabine Pütter, Amir Syed Mohd, Lukas Volgger, Herbert Hutter, Heshmat Noei, Vedran Vonk, Dieter Lott, Andreas Stierle

Publikováno v: Physical Review Research, Vol 2, Iss 2, p 023406 (2020)

Experiments are reported, which allow us to quantify the near-surface cation diffusion in (001) oriented Fe_{3}O_{4} single crystals at temperatures between 470 and 770 K. Thin homoepitaxial films of magnetite, grown using isotopically labeled ^{57}F

Externí odkaz: https://doaj.org/article/211d5cf6249b4f5c8696cc62c8a2d3b3

Water and Atomic Hydrogen Adsorption on Magnetite (001)

Autor: Elin Grånäs, Alina Vlad, Björn Arndt, Marcus Creutzburg, Andreas Stierle, Heshmat Noei, Konstantin Krausert, Sergey Volkov

Publikováno v: The Journal of Physical Chemistry C. 123:26662-26672

We investigated structural changes of the magnetite (001) surface upon exposure to water vapor at pressures up to 10 mbar as well as upon exposure to atomic hydrogen using surface X-ray diffraction, scanning tunneling microscopy, infrared spectroscop

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::151d54fa18037e6aaa7add11d722daea
https://doi.org/10.1021/acs.jpcc.9b07160

Order–disorder phase transition of the subsurface cation vacancy reconstruction on Fe 3 O 4 (001)

Autor: Jan Hulva, Michael Schmid, Elin Grånäs, Björn Arndt, Friedrich Esch, Konstantin Krausert, Marcus Creutzburg, Andreas Stierle, Barbara A. J. Lechner, Gareth S. Parkinson, Vedran Vonk, Alexander Bourgund

Publikováno v: Physical Chemistry Chemical Physics
Physical chemistry, chemical physics 22(16), 8336-8343 (2020). doi:10.1039/D0CP00690D

Physical chemistry, chemical physics 22(16), 8336 - 8343 (2020). doi:10.1039/D0CP00690D
We present surface X-ray diffraction and fast scanning tunneling microscopy results to elucidate the nature of the surface phase transition on magnetite (001

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa1a5376c3157206d918756ff2ffb5bb

Surface structure of magnetite (111) under oxidizing and reducing conditions

Autor: Kai Sellschopp, Heshmat Noei, Gregor Vonbun-Feldbauer, Vedran Vonk, Björn Arndt, Robert Gleißner, Andreas Stierle, Marcus Creutzburg

Publikováno v: 'Journal of Physics Condensed Matter ', vol: 34, pages: 164003-1-164003-10 (2022)
Journal of physics / Condensed matter 34(16), 164003 (2022). doi:10.1088/1361-648X/ac4d5a special issue: "Physical and Chemical Properties of Reducible Oxides"
Journal of physics. Condensed matter 34 (16): 164003 (2022-02-22)

Journal of physics / Condensed matter 34(16), 164003 (2022). doi:10.1088/1361-648X/ac4d5a special issue: "Physical and Chemical Properties of Reducible Oxides"
We report on differences in the magnetite (111) surface structure when prepared under

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::00345e814df2604d0f0c8f35945538a3
https://epn-library.esrf.fr/flora/jsp/index_view_direct_anonymous.jsp?record=doc:PUB_ESRF:59442