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Open AccessArticle

Controlling the Amorphous and Crystalline State of Multinary Alloy Nanoparticles in An Ionic Liquid

1
Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Straße 1, 40237 Düsseldorf, Germany
2
Werkstoffe der Mikrotechnik, Institut für Werkstoffe, Fakultät für Maschinenbau, Ruhr-Universität Bochum, Universitätsstr.150, D-44801 Bochum, Germany
3
Analytical Chemistry – Center for Electrochemical Sciences (CES), Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstr. 150, D-44780 Bochum, Germany
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work
Nanomaterials 2018, 8(11), 903; https://doi.org/10.3390/nano8110903
Received: 15 October 2018 / Revised: 30 October 2018 / Accepted: 1 November 2018 / Published: 4 November 2018
Controlling the amorphous or crystalline state of multinary Cr-Mn-Fe-Co-Ni alloy nanoparticles with sizes in the range between ~1.7 nm and ~4.8 nm is achieved using three processing routes. Direct current sputtering from an alloy target in the ionic liquid 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide leads to amorphous nanoparticles as observed by high-resolution transmission electron microscopy. Crystalline nanoparticles can be achieved in situ in a transmission electron microscope by exposure to an electron beam, ex situ by heating in vacuum, or directly during synthesis by using a high-power impulse magnetron sputtering process. Growth of the nanoparticles with respect to the amorphous particles was observed. Furthermore, the crystal structure can be manipulated by the processing conditions. For example, a body-centered cubic structure is formed during in situ electron beam crystallization while longer ex situ annealing induces a face-centered cubic structure. View Full-Text
Keywords: multinary alloy nanoparticle; ionic liquid; dc sputtering; HiPIMS sputtering; nanoparticle growth; in situ TEM multinary alloy nanoparticle; ionic liquid; dc sputtering; HiPIMS sputtering; nanoparticle growth; in situ TEM
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MDPI and ACS Style

Garzón-Manjón, A.; Meyer, H.; Grochla, D.; Löffler, T.; Schuhmann, W.; Ludwig, A.; Scheu, C. Controlling the Amorphous and Crystalline State of Multinary Alloy Nanoparticles in An Ionic Liquid. Nanomaterials 2018, 8, 903. https://doi.org/10.3390/nano8110903

AMA Style

Garzón-Manjón A, Meyer H, Grochla D, Löffler T, Schuhmann W, Ludwig A, Scheu C. Controlling the Amorphous and Crystalline State of Multinary Alloy Nanoparticles in An Ionic Liquid. Nanomaterials. 2018; 8(11):903. https://doi.org/10.3390/nano8110903

Chicago/Turabian Style

Garzón-Manjón, Alba; Meyer, Hajo; Grochla, Dario; Löffler, Tobias; Schuhmann, Wolfgang; Ludwig, Alfred; Scheu, Christina. 2018. "Controlling the Amorphous and Crystalline State of Multinary Alloy Nanoparticles in An Ionic Liquid" Nanomaterials 8, no. 11: 903. https://doi.org/10.3390/nano8110903

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