Thermal properties of Ag@Ni core-shell nanoparticles

J 2020

Thermal properties of Ag@Ni core-shell nanoparticles

VYKOUKAL, Vít, František ZELENKA, Jiří BURŠÍK, Tomáš KÁŇA, Aleš KROUPA et. al.

Basic information

Original name

Thermal properties of Ag@Ni core-shell nanoparticles

Authors

VYKOUKAL, Vít (203 Czech Republic, belonging to the institution), František ZELENKA (203 Czech Republic, belonging to the institution), Jiří BURŠÍK (203 Czech Republic), Tomáš KÁŇA (203 Czech Republic), Aleš KROUPA (203 Czech Republic) and Jiří PINKAS (203 Czech Republic, guarantor, belonging to the institution)

Edition

Computer Coupling of Phase Diagrams and Thermochemistry, Oxford, Pergamon-Elsevier Science Ltd, 2020, 0364-5916

Other information

Language

English

Type of outcome

Article in a journal

Field of Study

10402 Inorganic and nuclear chemistry

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

is not subject to a state or trade secret

References:

URL

Impact factor

Impact factor: 2.017

RIV identification code

RIV/00216224:14310/20:00114383

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.1016/j.calphad.2020.101741

UT WoS

000535967900007

Keywords in English

Melting point depression; CALPHAD; Phase diagram; Nanoparticles; Core-shell; Transmission electron microscopy

Abstract

V originále

We synthesized Ag@Ni core-shell nanoparticles by the solvothermal hot injection method and characterized them as for their shape and size by dynamic light scattering (DLS), small-angle X-ray scattering (SAXS), and transmission electron microscopy (TEM). We previously demonstrated their core-shell structure by scanning transmission electron microscopy with energy dispersive spectroscopy (STEM-EDS). The silver/nickel phase diagram was calculated by the CALPHAD method, and the melting points of 10, 15, and 20 nm silver nanoparticles were predicted at 930.2, 940.7, and 946.0 degrees C, respectively. We took advantage of the nickel shell to avoid silver sintering and to confirm the calculated melting point depression (MPD). The results obtained from the differential scanning calorimetry (DSC) experiments revealed the melting points of 11-15 nm nanoparticles at 944-949 degrees C in agreement with calculated values.

Links

GA17-15405S, research and development project

Name: Pokročilé experimentální a teoretické přístupy k fázovým diagramům nanoslitin se zahrnutím vlivu velikosti částic

Investor: Czech Science Foundation

LQ1601, research and development project

Name: CEITEC 2020 (Acronym: CEITEC2020)

Investor: Ministry of Education, Youth and Sports of the CR

90042, large research infrastructures

Name: CESNET II

90127, large research infrastructures

Name: CIISB II

Citovat

VYKOUKAL, Vít, František ZELENKA, Jiří BURŠÍK, Tomáš KÁŇA, Aleš KROUPA and Jiří PINKAS. Thermal properties of Ag@Ni core-shell nanoparticles. Computer Coupling of Phase Diagrams and Thermochemistry. Oxford: Pergamon-Elsevier Science Ltd, 2020, vol. 69, JUN 2020, p. 1-8. ISSN 0364-5916. Available from: https://dx.doi.org/10.1016/j.calphad.2020.101741.

@article{1686665,
   author = {Vykoukal, Vít and Zelenka, František and Buršík, Jiří and Káňa, Tomáš and Kroupa, Aleš and Pinkas, Jiří},
   article_location = {Oxford},
   article_number = {JUN 2020},
   doi = {http://dx.doi.org/10.1016/j.calphad.2020.101741},
   keywords = {Melting point depression; CALPHAD; Phase diagram; Nanoparticles; Core-shell; Transmission electron microscopy},
   language = {eng},
   issn = {0364-5916},
   journal = {Computer Coupling of Phase Diagrams and Thermochemistry},
   title = {Thermal properties of Ag@Ni core-shell nanoparticles},
   url = {http://dx.doi.org/10.1016/j.calphad.2020.101741},
   volume = {69},
   year = {2020}
}

TY  - JOUR
ID  - 1686665
AU  - Vykoukal, Vít - Zelenka, František - Buršík, Jiří - Káňa, Tomáš - Kroupa, Aleš - Pinkas, Jiří
PY  - 2020
TI  - Thermal properties of Ag@Ni core-shell nanoparticles
JF  - Computer Coupling of Phase Diagrams and Thermochemistry
VL  - 69
IS  - JUN 2020
SP  - 1-8
EP  - 1-8
PB  - Pergamon-Elsevier Science Ltd
SN  - 03645916
KW  - Melting point depression
KW  - CALPHAD
KW  - Phase diagram
KW  - Nanoparticles
KW  - Core-shell
KW  - Transmission electron microscopy
UR  - http://dx.doi.org/10.1016/j.calphad.2020.101741
L2  - http://dx.doi.org/10.1016/j.calphad.2020.101741
N2  - We synthesized Ag@Ni core-shell nanoparticles by the solvothermal hot injection method and characterized them as for their shape and size by dynamic light scattering (DLS), small-angle X-ray scattering (SAXS), and transmission electron microscopy (TEM). We previously demonstrated their core-shell structure by scanning transmission electron microscopy with energy dispersive spectroscopy (STEM-EDS). The silver/nickel phase diagram was calculated by the CALPHAD method, and the melting points of 10, 15, and 20 nm silver nanoparticles were predicted at 930.2, 940.7, and 946.0 degrees C, respectively. We took advantage of the nickel shell to avoid silver sintering and to confirm the calculated melting point depression (MPD). The results obtained from the differential scanning calorimetry (DSC) experiments revealed the melting points of 11-15 nm nanoparticles at 944-949 degrees C in agreement with calculated values.
ER  -

VYKOUKAL, Vít, František ZELENKA, Jiří BURŠÍK, Tomáš KÁŇA, Aleš KROUPA and Jiří PINKAS. Thermal properties of Ag@Ni core-shell nanoparticles. \textit{Computer Coupling of Phase Diagrams and Thermochemistry}. Oxford: Pergamon-Elsevier Science Ltd, 2020, vol.~69, JUN 2020, p.~1-8. ISSN~0364-5916. Available from: https://dx.doi.org/10.1016/j.calphad.2020.101741.

Přehled o publikaci