Detailed Information on Publication Record
2014
Ag-Cu Colloid Synthesis: Bimetallic Nanoparticle Characterisation and Thermal Treatment
SOPOUŠEK, Jiří, Jiří PINKAS, Pavel BROŽ, Jiří BURŠÍK, Vít VYKOUKAL et. al.Basic information
Original name
Ag-Cu Colloid Synthesis: Bimetallic Nanoparticle Characterisation and Thermal Treatment
Name in Czech
Syntéza koloidu Ag-Cu: Charakteristika a tepelné vlastnosti bimetalických nanočástic
Authors
SOPOUŠEK, Jiří (203 Czech Republic, guarantor, belonging to the institution), Jiří PINKAS (203 Czech Republic, belonging to the institution), Pavel BROŽ (203 Czech Republic, belonging to the institution), Jiří BURŠÍK (203 Czech Republic), Vít VYKOUKAL (203 Czech Republic, belonging to the institution), David ŠKODA (203 Czech Republic, belonging to the institution), Aleš STÝSKALÍK (203 Czech Republic, belonging to the institution), Ondřej ZOBAČ (203 Czech Republic, belonging to the institution), Jan VŘEŠŤÁL (203 Czech Republic, belonging to the institution), Aleš HRDLIČKA (203 Czech Republic, belonging to the institution) and Jan ŠIMBERA (203 Czech Republic, belonging to the institution)
Edition
Journal of Nanomaterials, USA, Hindawi Publishing Corporation, 2014, 1687-4110
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10403 Physical chemistry
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 1.644
RIV identification code
RIV/00216224:14310/14:00073585
Organization unit
Faculty of Science
UT WoS
000334754000001
Keywords (in Czech)
Nanočástice; DSC; SAXS; KEMS; electronové microskopie; HRTEM; CALPHAD; stříbro; měď
Keywords in English
Nanoparticle; DSC; SAXS; KEMS; electron microscopy; HRTEM; CALPHAD; silver; copper
Tags
International impact, Reviewed
Změněno: 8/2/2018 08:07, Mgr. Aleš Hrdlička, Ph.D.
V originále
The Ag-Cu bimetallic colloidal nanoparticles (NPs) were prepared by solvothermal synthesis from metalloorganic precursors in a mixture of organic solvents. The nanoparticles were characterized by dynamic light scattering (DLS) and small angle X-ray scattering (SAXS). The properties of metallic core and organic shell of the nanoparticles were studied by direct inlet probe mass spectrometry (DIP/MS), Knudsen effusion mass spectrometry (KEMS), double-pulse laser-induced breakdown spectroscopy (DPLIBS), and differential scanning calorimetry (DSC). The transmission electron microscopy (TEM) and scanning electron microscopy (SEM) were used for particle characterization before and after thermal analysis. The experiment yielded results that were for AgCu nanoparticles for the first time. The detected liquidus temperature has been compared with the prediction obtained from calculation of the phase diagram of Ag-Cu nanoalloy. The experimental results show that of near-eutectic composition AgCu nanoparticles possess the fcc crystal lattice. Surprisingly, spinodal decomposition was not observed inside the AgCu nanoparticles at temperatures up to 230C. The depression of the eutectic AgCu melting point was calculated but not observed. The eutectic AgCu microparticles are formed before melting.
In Czech
Ag-Cu bimetalické koloidní nanočástice (NPs) byly připraveny solvotermální syntézou z metalických prekurzorů ve směsi organických rozpouštědel. Nanočástice byly charakterizovány metodami: DLS a SAXS. Vlastnosti kovového jádra a stabilizační obálky z organických látek byly studovány metodou přímého vstupu do hmotnostního spektrometru (DIP/MS), Knutsenovou hmotnostní spektrometrií (KEMS), double -pulse laserovou spektroskopií (DPLIBS) a diferenční skenovací kalorimetrií (DSC). Transmisní elektronová mikroskopie (TEM) a řádkovací elektronová mikroskopie (SEM) byly použity pro charakterizaci částic před a po termické analýze. Teplota likvidu zjištěna experimentálně byla srovnávána s predikcí fázového diagramu Ag-Cu nanoslitiny. Experimentální výsledky ukázaly téměř eutektické složení a fcc krystalovou mřížku AgCu NPs. Překvapivě, spinodální rozklad nanočástic nebyl pozorován při teplotách do 230C.
Links
| ED1.1.00/02.0068, research and development project |
| ||
| GA14-12653S, research and development project |
| ||
| LD11046, research and development project |
|