Ms. Tatev Khachatryan Profile

Tatev Khachatryan

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Proceedings Article | 5 March 2011 Paper

Raman spectra of nickel-carbon nanocomposites

Armen Mirzakhanyan, Aram Manukyan, George Badalyan, Tatevik Khachatryan, Olga Maslova, Yurii Yuzyuk, Lusegen Bugaev, Eduard Sharoyan

Proceedings Volume 7998, 79981B (2011) https://doi.org/10.1117/12.890940

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By using the solid-phase pyrolysis of phthalocyanines the nickel-carbon nanocomposites have been synthesized. The composition, structure, and morphology of samples were investigated by scanning electron microscopy and Raman spectroscopy. The first-order Raman shifts of prepared materials were measured with laser excitation at 514.5 nm in the frequency range from 900 to 2000 cm^-1. It is shown that the degree of graphitization in nanocomposites essentially depends on the pyrolysis temperature. By analyzing the intensity ratio of Raman D- and G-bands the mean sizes of graphitic nanocrystallites in prepared samples were estimated.

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