Synthesis and Structure of NiCu and NiAl Electroexplosive Nanoparticles for Production of Carbon Nanofibers
Full article
| Common |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Journal |
Powder Technology
ISSN: 0032-5910
|
| Output data |
Year: 2023,
Volume: 415,
Article number
: 118164,
Pages count
: 12
DOI:
10.1016/j.powtec.2022.118164
|
| Tags |
Powder; Nanoparticles; Microparticles; Nickel-based alloys; Exploding wires; Carbon nanofibers |
| Authors |
Pervikov A.V.
1,2
,
Pustovalov A.V.
1,3
,
Afonnikova S.D.
1
,
Bauman Y.I.
1
,
Mishakov I.V.
1
,
Vedyagin A.A.
1
|
| Affiliations |
| 1 |
Boreskov Institute of Catalysis SB RAS, Novosibirsk, Russia
|
| 2 |
Institute of Strength Physics and Materials Science SB RAS, Tomsk, Russia
|
| 3 |
National Research Tomsk Polytechnic University, Tomsk, Russia
|
|
Funding (1)
|
1
|
Russian Science Foundation
|
22-13-00406
|
The nanoparticles consisting of Ni with Cu (6–27 at.%) and Al (6–24 at.%) were produced by a joint electrical explosion of dissimilar wires for the first time. Their specific surface area ranges from 7.7 to 12.8 m2/g and from 3.6 to 7.1 m2/g for NiCu and NiAl, respectively. The crystal structure of nanoparticles corresponds to solid solutions. The samples were studied in the catalytic pyrolysis of C2-C4 hydrocarbons with the production of carbon nanofibers (CNFs). It was found that the addition of Al and Cu in concentrations up to 20 at.% leads to a significant increase in productivity of Ni-based catalyst. Thus, the specific yield of CNF (YC) was increased by almost 4 times for the NiAl series (from 8.7 to 32 g/gNi, sample Ni91Al9); the addition of Cu raised the carbon yield value by 14 times (YC = 123 g/gNi, sample Ni85Cu15).