Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Fe–Mo and Co–Mo Catalysts with Varying Composition for Multi-Walled Carbon Nanotube Growth. / Kazakova, Mariya A.; Kuznetsov, Vladimir L.; Bokova-Sirosh, Sofia N. и др.
в: Physica Status Solidi (B) Basic Research, Том 255, № 1, 1700260, 01.01.2018.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Fe–Mo and Co–Mo Catalysts with Varying Composition for Multi-Walled Carbon Nanotube Growth
AU - Kazakova, Mariya A.
AU - Kuznetsov, Vladimir L.
AU - Bokova-Sirosh, Sofia N.
AU - Krasnikov, Dmitry V.
AU - Golubtsov, Georgiy V.
AU - Romanenko, Anatoliy I.
AU - Prosvirin, Igor P.
AU - Ishchenko, Arcadiy V.
AU - Orekhov, Andrey S.
AU - Chuvilin, Andrey L.
AU - Obraztsova, Elena D.
PY - 2018/1/1
Y1 - 2018/1/1
N2 - The formation of active component of Fe–Mo and Co–Mo catalysts for carbon nanotube growth with variable Mo content is studied with in situ XRD, XPS, and STEM&EDX. The activation of bimetallic Fe–Mo catalysts under the growth conditions leads to the formation of Fe–Mo alloy particles in contrast to Co-containing catalysts in which active alloy incorporates only a small portion of Mo (<2–3 at.%). The stable carbide formation for these systems is not detected. The effect of Mo content in Fe–Mo and Co–Mo catalysts on the properties of MWCNTs is additionally investigated using the Raman spectroscopy in combination with measurements of the temperature dependence of conductivity. It is shown that MWCNT defectiveness depends on the active component composition for both Fe–Mo and Co–Mo catalysts. The current carrier concentration for the MWCNTs grown on Fe–Mo catalysts slightly increases with the Mo content. The opposite effect is observed for the tubes grown on Co–Mo catalysts, showing a decrease in the current carrier concentration with the increase of Mo concentration.
AB - The formation of active component of Fe–Mo and Co–Mo catalysts for carbon nanotube growth with variable Mo content is studied with in situ XRD, XPS, and STEM&EDX. The activation of bimetallic Fe–Mo catalysts under the growth conditions leads to the formation of Fe–Mo alloy particles in contrast to Co-containing catalysts in which active alloy incorporates only a small portion of Mo (<2–3 at.%). The stable carbide formation for these systems is not detected. The effect of Mo content in Fe–Mo and Co–Mo catalysts on the properties of MWCNTs is additionally investigated using the Raman spectroscopy in combination with measurements of the temperature dependence of conductivity. It is shown that MWCNT defectiveness depends on the active component composition for both Fe–Mo and Co–Mo catalysts. The current carrier concentration for the MWCNTs grown on Fe–Mo catalysts slightly increases with the Mo content. The opposite effect is observed for the tubes grown on Co–Mo catalysts, showing a decrease in the current carrier concentration with the increase of Mo concentration.
KW - defective structure
KW - Fe-Mo and Co-Mo bimetallic catalyst
KW - multi-walled carbon nanotubes
KW - Pechini method
KW - ACTIVATION
KW - CHEMICAL-VAPOR-DEPOSITION
KW - MOLYBDENUM
KW - DECOMPOSITION
KW - NANOSTRUCTURES
KW - MASS-PRODUCTION
KW - NANOPARTICLES
KW - HYDROGEN
KW - METHANE
KW - SELECTIVITY
UR - http://www.scopus.com/inward/record.url?scp=85040795671&partnerID=8YFLogxK
U2 - 10.1002/pssb.201700260
DO - 10.1002/pssb.201700260
M3 - Article
AN - SCOPUS:85040795671
VL - 255
JO - Physica Status Solidi (B): Basic Research
JF - Physica Status Solidi (B): Basic Research
SN - 0370-1972
IS - 1
M1 - 1700260
ER -
ID: 9444574