Research output: Contribution to journal › Article › peer-review
Structure of carbon nanoparticles synthesized by adiabatic compression of acetylene and their application in supercapacitors. / Fedoseeva, Yu V.; Popov, K. M.; Pozdnyakov, G. A. et al.
In: Journal of Structural Chemistry, Vol. 58, No. 6, 01.11.2017, p. 1196-1204.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Structure of carbon nanoparticles synthesized by adiabatic compression of acetylene and their application in supercapacitors
AU - Fedoseeva, Yu V.
AU - Popov, K. M.
AU - Pozdnyakov, G. A.
AU - Yakovlev, V. N.
AU - Sen’kovskiy, B. V.
AU - Bulusheva, L. G.
AU - Okotrub, A. V.
PY - 2017/11/1
Y1 - 2017/11/1
N2 - The work reports the study of the structure of carbon nanoparticles prepared by the pyrolysis of heliumdiluted acetylene under adiabatic compression in a piston reactor. At a pushing gas pressure of 0.5 MPa, 0.7 MPa, and 0.9 MPa the reaction gas was heated to temperatures of 400 °C, 600 °C, and 750 °C. By transmission electron microscopy it is found that carbon nanoparticles have a spherical shape and their size varies from 20 nm to 60 nm. The structural features of carbon nanoparticles are determined from the X-ray photoelectron spectroscopy data and the analysis of the near-edge X-ray absorption fine structure spectroscopy. Carbon nanoparticles prepared at a pushing gas pressure of 0.5 MPa have an amorphous structure and consist of hydrogenated carbon with impurities of polycyclic aromatic fragments. At a stronger compression ratio, carbon nanoparticles with a layered structure consisting mainly of sp2 hybridized carbon atoms are formed. The capacitance behavior and electrochemical impedance of carbon nanoparticle-based supercapacitors are compared.
AB - The work reports the study of the structure of carbon nanoparticles prepared by the pyrolysis of heliumdiluted acetylene under adiabatic compression in a piston reactor. At a pushing gas pressure of 0.5 MPa, 0.7 MPa, and 0.9 MPa the reaction gas was heated to temperatures of 400 °C, 600 °C, and 750 °C. By transmission electron microscopy it is found that carbon nanoparticles have a spherical shape and their size varies from 20 nm to 60 nm. The structural features of carbon nanoparticles are determined from the X-ray photoelectron spectroscopy data and the analysis of the near-edge X-ray absorption fine structure spectroscopy. Carbon nanoparticles prepared at a pushing gas pressure of 0.5 MPa have an amorphous structure and consist of hydrogenated carbon with impurities of polycyclic aromatic fragments. At a stronger compression ratio, carbon nanoparticles with a layered structure consisting mainly of sp2 hybridized carbon atoms are formed. The capacitance behavior and electrochemical impedance of carbon nanoparticle-based supercapacitors are compared.
KW - acetylene pyrolysis
KW - adiabatic compression
KW - carbon nanoparticles
KW - NEXAFS
KW - XPS
KW - STORAGE
KW - NANOTUBES
KW - NANOSTRUCTURES
UR - http://www.scopus.com/inward/record.url?scp=85036581497&partnerID=8YFLogxK
U2 - 10.1134/S002247661706018X
DO - 10.1134/S002247661706018X
M3 - Article
AN - SCOPUS:85036581497
VL - 58
SP - 1196
EP - 1204
JO - Journal of Structural Chemistry
JF - Journal of Structural Chemistry
SN - 0022-4766
IS - 6
ER -
ID: 9648497