Growth of Pt-Ni Nanoparticles of Different Composition using Electrodeposition and Characterization of Their Magnetic Properties

• Authors: M. Kožejová , D. Hložná , Y. Hua Liu , K. Ráczová , E. Čižmár , M. Orendáč , V. Komanický
• Languages of publication: EN

Abstracts

EN

We prepared Pt₃Ni and PtNi₃ nanoparticles of various sizes on conductive and atomically smooth highly oriented pyrolytic graphite surfaces using potentiostatic electrodeposition. We can control the size of electrodeposited nanoparticles and their density on the surface by changing the deposition time. The morphology of nanoparticles was determined by scanning electron microscopy. PtNi₃ particles have spherical shape, while Pt₃Ni particles have more irregular shape. Composition of particles was confirmed by energy dispersive spectroscopy. We have measured magnetic properties of both systems with 100 s preparation time, superparamagnetic behavior was observed in PtNi₃ nanoparticles with blocking temperature T_{B}=225 K.

Keywords

EN

75.75.+a; 75.75.Fk; 82.45.Qr; 68.37.Hk

Discipline

• 82.45.Qr: Electrodeposition and electrodissolution(see also 81.15.Pq Electrodeposition, electroplating in materials science)
• 68.37.Hk: Scanning electron microscopy (SEM) (including EBIC)
• 75.75.Fk: Domain structures in nanoparticles

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2017
• Volume: 131
• Issue: 4
• Pages: 839-841

Dates

published

2017-04

Contributors

author

M. Kožejová

• Institute of Physics, Faculty of Sciences, P.J. Safarik University, Park Angelinum 9, 041 54 Košice, Slovakia

author

D. Hložná

• Institute of Physics, Faculty of Sciences, P.J. Safarik University, Park Angelinum 9, 041 54 Košice, Slovakia

author

Y. Hua Liu

• Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA

author

K. Ráczová

• Institute of Physics, Faculty of Sciences, P.J. Safarik University, Park Angelinum 9, 041 54 Košice, Slovakia

author

E. Čižmár

• Institute of Physics, Faculty of Sciences, P.J. Safarik University, Park Angelinum 9, 041 54 Košice, Slovakia

author

M. Orendáč

• Institute of Physics, Faculty of Sciences, P.J. Safarik University, Park Angelinum 9, 041 54 Košice, Slovakia

author

V. Komanický

• Institute of Physics, Faculty of Sciences, P.J. Safarik University, Park Angelinum 9, 041 54 Košice, Slovakia

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Identifiers

DOI

10.12693/APhysPolA.131.839