Effect of in-plane size of MoS2 nanoparticles grown over multilayer graphene on the electrochemical performance of anodes in Li-ion batteries

L. G. Bulusheva, V. O. Koroteev, S. G. Stolyarova, A. L. Chuvilin, P. E. Plyusnin, Yu V. Shubin, O. Y. Vilkov, Xiaohong Chen, Huaihe Song, A. V. Okotrub

Результат исследований: Научные публикации в периодических изданияхстатья

4 Цитирования (Scopus)

Выдержка

Electrochemical performance of MoS2/graphene materials in Li-ion batteries is strongly dependent on the structure of individual components and their coupling in the hybrid. We present a comparative study of the materials produced by annealing of amorphous MoS3 deposited on the surface of multilayer graphene flakes at 500 °C, 800 °C, and 1000 °C in vacuum. X-ray photoelectron spectroscopy confirmed a transformation of MoS3 to MoS2 at these conditions. High-resolution transmission electron microscopy and Raman scattering showed a growth of in-plane size of MoS2 nanocrystals with a raise of annealing temperature. Electrochemical tests detected a gradual decrease of the specific capacity of the MoS2/graphene materials prepared at 500 and 800 °C and a stable performance for the material synthesized at 1000 °C even at high current densities. Based on the initial discharge-charge profiles, we associate this effect with in-plane size of MoS2 nanocrystals, which should decompose more easily when the size is small, due to the interaction of lithium with edge sulfur atoms.

Язык оригиналаанглийский
Страницы (с-по)45-53
Число страниц9
ЖурналElectrochimica Acta
Том283
DOI
СостояниеОпубликовано - сен 2018

Отпечаток

Graphite
Graphene
Anodes
Multilayers
Nanoparticles
Nanocrystals
Annealing
High resolution transmission electron microscopy
Lithium
Sulfur
Raman scattering
Current density
X ray photoelectron spectroscopy
Vacuum
Atoms
Lithium-ion batteries
Temperature

Предметные области Scopus

  • Химическая технология (все)
  • Электрохимия

Цитировать

Bulusheva, L. G., Koroteev, V. O., Stolyarova, S. G., Chuvilin, A. L., Plyusnin, P. E., Shubin, Y. V., ... Okotrub, A. V. (2018). Effect of in-plane size of MoS2 nanoparticles grown over multilayer graphene on the electrochemical performance of anodes in Li-ion batteries. Electrochimica Acta, 283, 45-53. https://doi.org/10.1016/j.electacta.2018.06.134
Bulusheva, L. G. ; Koroteev, V. O. ; Stolyarova, S. G. ; Chuvilin, A. L. ; Plyusnin, P. E. ; Shubin, Yu V. ; Vilkov, O. Y. ; Chen, Xiaohong ; Song, Huaihe ; Okotrub, A. V. / Effect of in-plane size of MoS2 nanoparticles grown over multilayer graphene on the electrochemical performance of anodes in Li-ion batteries. В: Electrochimica Acta. 2018 ; Том 283. стр. 45-53.
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abstract = "Electrochemical performance of MoS2/graphene materials in Li-ion batteries is strongly dependent on the structure of individual components and their coupling in the hybrid. We present a comparative study of the materials produced by annealing of amorphous MoS3 deposited on the surface of multilayer graphene flakes at 500 °C, 800 °C, and 1000 °C in vacuum. X-ray photoelectron spectroscopy confirmed a transformation of MoS3 to MoS2 at these conditions. High-resolution transmission electron microscopy and Raman scattering showed a growth of in-plane size of MoS2 nanocrystals with a raise of annealing temperature. Electrochemical tests detected a gradual decrease of the specific capacity of the MoS2/graphene materials prepared at 500 and 800 °C and a stable performance for the material synthesized at 1000 °C even at high current densities. Based on the initial discharge-charge profiles, we associate this effect with in-plane size of MoS2 nanocrystals, which should decompose more easily when the size is small, due to the interaction of lithium with edge sulfur atoms.",
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Bulusheva, LG, Koroteev, VO, Stolyarova, SG, Chuvilin, AL, Plyusnin, PE, Shubin, YV, Vilkov, OY, Chen, X, Song, H & Okotrub, AV 2018, 'Effect of in-plane size of MoS2 nanoparticles grown over multilayer graphene on the electrochemical performance of anodes in Li-ion batteries', Electrochimica Acta, том. 283, стр. 45-53. https://doi.org/10.1016/j.electacta.2018.06.134

Effect of in-plane size of MoS2 nanoparticles grown over multilayer graphene on the electrochemical performance of anodes in Li-ion batteries. / Bulusheva, L. G.; Koroteev, V. O.; Stolyarova, S. G.; Chuvilin, A. L.; Plyusnin, P. E.; Shubin, Yu V.; Vilkov, O. Y.; Chen, Xiaohong; Song, Huaihe; Okotrub, A. V.

В: Electrochimica Acta, Том 283, 09.2018, стр. 45-53.

Результат исследований: Научные публикации в периодических изданияхстатья

TY - JOUR

T1 - Effect of in-plane size of MoS2 nanoparticles grown over multilayer graphene on the electrochemical performance of anodes in Li-ion batteries

AU - Bulusheva, L. G.

AU - Koroteev, V. O.

AU - Stolyarova, S. G.

AU - Chuvilin, A. L.

AU - Plyusnin, P. E.

AU - Shubin, Yu V.

AU - Vilkov, O. Y.

AU - Chen, Xiaohong

AU - Song, Huaihe

AU - Okotrub, A. V.

PY - 2018/9

Y1 - 2018/9

N2 - Electrochemical performance of MoS2/graphene materials in Li-ion batteries is strongly dependent on the structure of individual components and their coupling in the hybrid. We present a comparative study of the materials produced by annealing of amorphous MoS3 deposited on the surface of multilayer graphene flakes at 500 °C, 800 °C, and 1000 °C in vacuum. X-ray photoelectron spectroscopy confirmed a transformation of MoS3 to MoS2 at these conditions. High-resolution transmission electron microscopy and Raman scattering showed a growth of in-plane size of MoS2 nanocrystals with a raise of annealing temperature. Electrochemical tests detected a gradual decrease of the specific capacity of the MoS2/graphene materials prepared at 500 and 800 °C and a stable performance for the material synthesized at 1000 °C even at high current densities. Based on the initial discharge-charge profiles, we associate this effect with in-plane size of MoS2 nanocrystals, which should decompose more easily when the size is small, due to the interaction of lithium with edge sulfur atoms.

AB - Electrochemical performance of MoS2/graphene materials in Li-ion batteries is strongly dependent on the structure of individual components and their coupling in the hybrid. We present a comparative study of the materials produced by annealing of amorphous MoS3 deposited on the surface of multilayer graphene flakes at 500 °C, 800 °C, and 1000 °C in vacuum. X-ray photoelectron spectroscopy confirmed a transformation of MoS3 to MoS2 at these conditions. High-resolution transmission electron microscopy and Raman scattering showed a growth of in-plane size of MoS2 nanocrystals with a raise of annealing temperature. Electrochemical tests detected a gradual decrease of the specific capacity of the MoS2/graphene materials prepared at 500 and 800 °C and a stable performance for the material synthesized at 1000 °C even at high current densities. Based on the initial discharge-charge profiles, we associate this effect with in-plane size of MoS2 nanocrystals, which should decompose more easily when the size is small, due to the interaction of lithium with edge sulfur atoms.

KW - Bridge disulfides

KW - DFT calculations

KW - Li-ion batteries

KW - MoS/Graphene hybrids

KW - NEXAFS C K-Edge

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U2 - 10.1016/j.electacta.2018.06.134

DO - 10.1016/j.electacta.2018.06.134

M3 - Article

AN - SCOPUS:85049088368

VL - 283

SP - 45

EP - 53

JO - Electrochimica Acta

JF - Electrochimica Acta

SN - 0013-4686

ER -