Informace o publikaci

Molecular precursors for morphology control in AgCu nanoalloys

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Rok publikování 2018
Druh Konferenční abstrakty
Popis Nanoparticles preparation by bottom-up methods depends strongly on molecular precursors and the type and nature of the precursors have a decisive effect on their formation and properties. For example, Cu, Ag, and AgCu nanoparticles display surface plasmon resonances which are closely connected with their size, shape, and morphology. We synthetized several new copper precursors by reduction of Cu(II) salts of carboxylic acids by triphenylphosphine. The molecular structures of new precursors were completely characterized by single crystal X-ray diffraction analyses. We examined also chemical, spectroscopic, and thermal properties of prepared precursors. AgCu alloy nanoparticles were prepared by solvothermal hot-injection technique from precursors based on Cu(I) complexes. Nanoparticles were characterized by various techniques and influence of precursor structure on the final size, shape, morphology, and optical properties was demonstrated. We showed that our synthetic route provides either Janus-type or solid-solution AgCu nanoparticles. Acknowledgements. The results of this research have been acquired within the CEITEC 2020 (LQ1601) project with financial contribution made by the MEYS CR within special support paid from the National Program for Sustainability II funds and by the Czech Science Foundation (GA 17-15405S). CIISB research infrastructure project LM2015043 funded by MEYS CR is gratefully acknowledged for the financial support of the measurements at the CF X-ray Diffraction and Bio-SAXS and at the CF Cryo-electron Microscopy and Tomography CEITEC MU
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