2019
Morphology Control in AgCu Nanoalloy Synthesis by Molecular Cu(I) Precursors
VYKOUKAL, Vít, Vitezslav HALASTA, Michal BABIAK, Jiří BURŠÍK, Jiří PINKAS et. al.Základní údaje
Originální název
Morphology Control in AgCu Nanoalloy Synthesis by Molecular Cu(I) Precursors
Autoři
VYKOUKAL, Vít (203 Česká republika, domácí), Vitezslav HALASTA (203 Česká republika), Michal BABIAK (703 Slovensko, domácí), Jiří BURŠÍK (203 Česká republika) a Jiří PINKAS (203 Česká republika, garant, domácí)
Vydání
Inorganic Chemistry, Washington, American Chemical Society, 2019, 0020-1669
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10402 Inorganic and nuclear chemistry
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.825
Kód RIV
RIV/00216224:14310/19:00108075
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000498288300031
Klíčová slova anglicky
AgCu; Nanoalloy; Synthesis; Precursor; Nanoparticles
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 29. 3. 2020 19:11, Mgr. Marie Šípková, DiS.
Anotace
V originále
As nanoparticle preparation methods employing bottom-up procedures rely on the use of molecular precursors, the chemical composition and bonding of these precursors have a decisive effect on nanoparticle formation and their resulting morphology and properties. We synthesized the Cu(I) complexes [Cu(PPh3)(2) (bea)] (1, bea = benzoate) and [Cu(PPh3)(3) (Hphta)] (2, phta = phthalate) by reducing the corresponding Cu(II) mono- and dicarboxylates with triphenylphosphine. We characterized 1 and 2 by single-crystal X-ray diffraction analysis, elemental analyses, infrared and nuclear magnetic resonance spectroscopy, and mass spectrometry and obtained complete information about their structures in the solid state and in solution. Also, we examined their thermal stability in oleylamine and determined their decomposition temperatures to be used as the minimal reaction temperature in metal nanoparticle synthesis. The complexes 1 and 2 differ in the number of reducing PPh 3 ligands and the strength of carboxylate bonding to the Cu(I) center. Therefore, we employed them in combination with [Ag(NH2C12H25)(2)]NO3 as molecular precursors in the solvothermal hot injection synthesis of AgCu nanoalloys in oleylamine and demonstrated their influence on the elemental distribution, phase composition, particle size distribution, shape, morphology, and optical properties of the resulting nanoparticles. The nanoalloy particles from the benzoate complex 1 were oblate and polydisperse and exhibited two surface plasmons at 393 and 569 nm, which is caused by their Janus-type structure. The nanoparticles prepared from the phthalate complex 2 were round and monodisperse and exhibited one plasmon at 413 nm, as they formed an AgCu solid solution with a random distribution of the elements in a particle.
Návaznosti
GA17-15405S, projekt VaV |
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LM2015041, projekt VaV |
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LM2015043, projekt VaV |
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LQ1601, projekt VaV |
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