On thermal stability of nanocrystalline Ag–Cu-S powders
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F21%3A00119517" target="_blank" >RIV/00216224:14310/21:00119517 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/68081723:_____/21:00543783 RIV/00216305:26620/21:PU142062
Výsledek na webu
<a href="https://link.springer.com/article/10.1007%2Fs11051-021-05244-y" target="_blank" >https://link.springer.com/article/10.1007%2Fs11051-021-05244-y</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s11051-021-05244-y" target="_blank" >10.1007/s11051-021-05244-y</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
On thermal stability of nanocrystalline Ag–Cu-S powders
Popis výsledku v původním jazyce
The nanocrystalline semiconducting compounds based on the AgCuS system are considered as low-cost candidates of thermoelectric materials with improved thermal stability. The nanocrystalline Ag–Cu—S powders were prepared from metal nitrates and sulphur powder in tetraethylene glycol (TEG) solvent by reductive agent NaBH4. The crystallite sizes of the observed phases were in the range between 60 and 80 nm. The chemical compositions of the as-received samples were analysed by the ICP-AES method and their phase compositions were evaluated by XRPD. The investigation was supplemented by DSC and in situ HTXRD thermal analysis. A more detailed in situ experiment was performed for a sample containing ternary phases. The nucleation and growth of silver micro-wires were first observed on the substrate involving ternary phases at isothermal heat treatment. The formation of silver wires and semi-conductive ternary thermoelectric phase (stromayerite τ3) is explained by observed phase transformation. The obtained results are complemented by microscopy (LM, SEM, TEM).
Název v anglickém jazyce
On thermal stability of nanocrystalline Ag–Cu-S powders
Popis výsledku anglicky
The nanocrystalline semiconducting compounds based on the AgCuS system are considered as low-cost candidates of thermoelectric materials with improved thermal stability. The nanocrystalline Ag–Cu—S powders were prepared from metal nitrates and sulphur powder in tetraethylene glycol (TEG) solvent by reductive agent NaBH4. The crystallite sizes of the observed phases were in the range between 60 and 80 nm. The chemical compositions of the as-received samples were analysed by the ICP-AES method and their phase compositions were evaluated by XRPD. The investigation was supplemented by DSC and in situ HTXRD thermal analysis. A more detailed in situ experiment was performed for a sample containing ternary phases. The nucleation and growth of silver micro-wires were first observed on the substrate involving ternary phases at isothermal heat treatment. The formation of silver wires and semi-conductive ternary thermoelectric phase (stromayerite τ3) is explained by observed phase transformation. The obtained results are complemented by microscopy (LM, SEM, TEM).
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10403 - Physical chemistry
Návaznosti výsledku
Projekt
Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2021
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of Nanoparticle Research
ISSN
1388-0764
e-ISSN
1572-896X
Svazek periodika
23
Číslo periodika v rámci svazku
7
Stát vydavatele periodika
NL - Nizozemsko
Počet stran výsledku
14
Strana od-do
„138“
Kód UT WoS článku
000668540800001
EID výsledku v databázi Scopus
2-s2.0-85109016317