Solvothermal hot injection synthesis of core-shell AgNi
nanoparticles

J 2019

Solvothermal hot injection synthesis of core-shell AgNi nanoparticles

VYKOUKAL, Vít, Jiří BURŠÍK, Pavla ROUPCOVÁ, D.A. CULLEN, Jiří PINKAS et. al.

Základní údaje

Originální název

Solvothermal hot injection synthesis of core-shell AgNi nanoparticles

Autoři

VYKOUKAL, Vít (203 Česká republika, domácí), Jiří BURŠÍK (203 Česká republika), Pavla ROUPCOVÁ (203 Česká republika), D.A. CULLEN (840 Spojené státy) a Jiří PINKAS (203 Česká republika, garant, domácí)

Vydání

Journal of Alloys and Compounds, Švýcarsko, Elsevier, 2019, 0925-8388

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10402 Inorganic and nuclear chemistry

Stát vydavatele

Švýcarsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 4.650

Kód RIV

RIV/00216224:14310/19:00107202

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1016/j.jallcom.2018.08.082

UT WoS

000449486300045

Klíčová slova anglicky

Nanostructured materials; Metals and alloys; Chemical synthesis; Energy-dispersive X-ray spectroscopy; Magnetic measurements; Transmission electron microscopy

Štítky

CF SAXS

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 11. 10. 2024 12:07, Ing. Marie Švancarová

Anotace

V originále

Silver-nickel core-shell nanoparticles (NP) were prepared by solvothermal hot injection synthesis by simultaneous thermolysis/reduction of AgNO3 and Ni(acac)(2) precursors in the hot mixture of octadecene and oleylamine. Oleylamine decreases decomposition temperature of AgNO3 to that of Ni(acac)(2) thus ensuring favorable reaction conditions. The prepared AgNi NPs with different Ag/Ni ratios were completely characterized. Dynamic light scattering (DLS) and small angle X-ray scattering (SAXS) were used for particle size characterization of as-prepared AgNi colloids. There is no dependence of the particle size (13-21 nm by SAXS) on the Ag/Ni stoichiometric ratio, but the ultraviolet-visible spectroscopy (UV-vis) reveals that the intensity of the surface plasmon (SPR) decreases with increasing Ni content. Transmission electron microscopy (TEM) verified the results of DLS and SAXS and showed spherical nanoparticle shape. Distribution of individual elements in the nanoparticles was mapped by high resolution scanning transmission electron microscopy and energy dispersive X-ray spectroscopy (STEM-EDS) and revealed their core-shell structure where an Ag nucleus is covered by a thin amorphous Ni layer. Upon heating to 400 degrees C, Ni crystallization is substantiated by appearance of diffractions in the high-temperature X-ray powder diffractograms (HT-XRD) and of a magnetic moment. Ultimate phase separation was proven by scanning electron microscopy and energy dispersive X-ray analysis (SEM-EDS) in samples heated to 1000 degrees C. The reaction course and nanoparticle formation studied by DLS, UV-vis, and Ag and Ni elemental analyses reveal an initial Ag seed formation with subsequent Ni overlayer deposition after 180 s. (C) 2018 Elsevier B.V. All rights reserved.

Návaznosti

GA17-15405S, projekt VaV

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

Investor: Grantová agentura ČR, Pokročilé experimentální a teoretické přístupy k fázovým diagramům nanoslitin se zahrnutím vlivu velikosti částic

LD11046, projekt VaV

Název: Fázové diagramy nanoslitin, jejich výpočty a ověření. (Akronym: PHADINANOAL)

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Fázové diagramy nanoslitin, jejich výpočty a ověření.

LQ1601, projekt VaV

Název: CEITEC 2020 (Akronym: CEITEC2020)

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, CEITEC 2020

90043, velká výzkumná infrastruktura

Název: CIISB

Citovat

VYKOUKAL, Vít, Jiří BURŠÍK, Pavla ROUPCOVÁ, D.A. CULLEN a Jiří PINKAS. Solvothermal hot injection synthesis of core-shell AgNi nanoparticles. Journal of Alloys and Compounds. Švýcarsko: Elsevier, 2019, roč. 770, JAN, s. 377-385. ISSN 0925-8388. Dostupné z: https://dx.doi.org/10.1016/j.jallcom.2018.08.082.

@article{1474698,
   author = {Vykoukal, Vít and Buršík, Jiří and Roupcová, Pavla and Cullen, D.A. and Pinkas, Jiří},
   article_location = {Švýcarsko},
   article_number = {JAN},
   doi = {http://dx.doi.org/10.1016/j.jallcom.2018.08.082},
   keywords = {Nanostructured materials; Metals and alloys; Chemical synthesis; Energy-dispersive X-ray spectroscopy; Magnetic measurements; Transmission electron microscopy},
   language = {eng},
   issn = {0925-8388},
   journal = {Journal of Alloys and Compounds},
   title = {Solvothermal hot injection synthesis of core-shell AgNi nanoparticles},
   url = {http://dx.doi.org/10.1016/j.jallcom.2018.08.082},
   volume = {770},
   year = {2019}
}

TY  - JOUR
ID  - 1474698
AU  - Vykoukal, Vít - Buršík, Jiří - Roupcová, Pavla - Cullen, D.A. - Pinkas, Jiří
PY  - 2019
TI  - Solvothermal hot injection synthesis of core-shell AgNi nanoparticles
JF  - Journal of Alloys and Compounds
VL  - 770
IS  - JAN
SP  - 377-385
EP  - 377-385
PB  - Elsevier
SN  - 09258388
KW  - Nanostructured materials
KW  - Metals and alloys
KW  - Chemical synthesis
KW  - Energy-dispersive X-ray spectroscopy
KW  - Magnetic measurements
KW  - Transmission electron microscopy
UR  - http://dx.doi.org/10.1016/j.jallcom.2018.08.082
L2  - http://dx.doi.org/10.1016/j.jallcom.2018.08.082
N2  - Silver-nickel core-shell nanoparticles (NP) were prepared by solvothermal hot injection synthesis by simultaneous thermolysis/reduction of AgNO3 and Ni(acac)(2) precursors in the hot mixture of octadecene and oleylamine. Oleylamine decreases decomposition temperature of AgNO3 to that of Ni(acac)(2) thus ensuring favorable reaction conditions. The prepared AgNi NPs with different Ag/Ni ratios were completely characterized. Dynamic light scattering (DLS) and small angle X-ray scattering (SAXS) were used for particle size characterization of as-prepared AgNi colloids. There is no dependence of the particle size (13-21 nm by SAXS) on the Ag/Ni stoichiometric ratio, but the ultraviolet-visible spectroscopy (UV-vis) reveals that the intensity of the surface plasmon (SPR) decreases with increasing Ni content. Transmission electron microscopy (TEM) verified the results of DLS and SAXS and showed spherical nanoparticle shape. Distribution of individual elements in the nanoparticles was mapped by high resolution scanning transmission electron microscopy and energy dispersive X-ray spectroscopy (STEM-EDS) and revealed their core-shell structure where an Ag nucleus is covered by a thin amorphous Ni layer. Upon heating to 400 degrees C, Ni crystallization is substantiated by appearance of diffractions in the high-temperature X-ray powder diffractograms (HT-XRD) and of a magnetic moment. Ultimate phase separation was proven by scanning electron microscopy and energy dispersive X-ray analysis (SEM-EDS) in samples heated to 1000 degrees C. The reaction course and nanoparticle formation studied by DLS, UV-vis, and Ag and Ni elemental analyses reveal an initial Ag seed formation with subsequent Ni overlayer deposition after 180 s. (C) 2018 Elsevier B.V. All rights reserved.
ER  -

VYKOUKAL, Vít, Jiří BURŠÍK, Pavla ROUPCOVÁ, D.A. CULLEN a Jiří PINKAS. Solvothermal hot injection synthesis of core-shell AgNi nanoparticles. \textit{Journal of Alloys and Compounds}. Švýcarsko: Elsevier, 2019, roč.~770, JAN, s.~377-385. ISSN~0925-8388. Dostupné z: https://dx.doi.org/10.1016/j.jallcom.2018.08.082.

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