Mechanochemical Synthesis, Structure, and Catalytic Activity of Ni-Cu, Ni-Fe, and Ni-Mo Alloys in the Preparation OF Carbon Nanofibers During the Decomposition of Chlorohydrocarbons

I. V. Mishakov, N. V. Kutaev, Yu I. Bauman, Yu V. Shubin, A. P. Koskin, A. N. Serkova, A. A. Vedyagin

Результат исследования: Научные публикации в периодических изданияхстатья

Аннотация

A series of Ni-M (M = Cu, Fe, Mo)-based alloys is synthesized using mechanochemical alloying of metal powders. The phase composition and structure of Ni-M samples are analyzed by powder X-ray diffraction. The catalytic activity of Ni-M B is studied in the synthesis of carbon nanofibers (CNFs) by decomposing a C2H4Cl2/H2/Ar mixture at 600 °C. It is shown that as a result of the interaction of alloys with the reaction medium, their rapid disintegration occurs with the formation of active particles catalyzing the growth of CNFs. The highest yield (22.2 g(CNF)/g(Ni)) is obtained for Ni-Mo alloy (in 2 h). The structural and morphological features of carbon materials are investigated. SEM and TEM data indicate the formation of carbon fibers with a pronounced segmented structure. The specific surface of the carbon material is 250–400 m2/g.

Язык оригиналаанглийский
Страницы (с-по)769-779
Число страниц11
ЖурналJournal of Structural Chemistry
Том61
Номер выпуска5
DOI
СостояниеОпубликовано - 1 мая 2020

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