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
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Translated
|
| Journal |
Journal of Structural Chemistry
ISSN: 0022-4766
, E-ISSN: 1573-8779
|
| Output data |
Year: 2020,
Volume: 61,
Number: 5,
Pages: 769–779
Pages count
: 11
DOI:
10.1134/S0022476620050133
|
| Tags |
carbon nanofibers, nickel alloys, mechanochemical alloying, 1,2-dichloroethane, carbon erosion, segmented fibers |
| Authors |
Mishakov I.V.
1,2
,
Kutaev N.V.
3
,
Bauman Yu.I.
1
,
Shubin Yu.V.
2,4
,
Koskin A.P.
1
,
Serkova A.N.
1
,
Vedyagin A.A.
1
|
| Affiliations |
| 1 |
Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
|
| 2 |
Novosibirsk State University, Novosibirsk, Russia
|
| 3 |
Research Complex, Technical Support Center, Novosibirsk, Russia
|
| 4 |
Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
|
|
Funding (2)
|
1
|
Federal Agency for Scientific Organizations
|
0303-2016-0014
|
|
2
|
Russian Foundation for Basic Research
|
18-29-19053
|
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.