Research output: Contribution to journal › Article › peer-review
High-Pressure High-Temperature Synthesis of MoS2/Holey Graphene Hybrids and Their Performance in Li-Ion Batteries. / Stolyarova, Svetlana G.; Kanygin, Mikhail A.; Koroteev, Victor O. et al.
In: Physica Status Solidi (B) Basic Research, Vol. 255, No. 1, 1700262, 01.01.2018.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - High-Pressure High-Temperature Synthesis of MoS2/Holey Graphene Hybrids and Their Performance in Li-Ion Batteries
AU - Stolyarova, Svetlana G.
AU - Kanygin, Mikhail A.
AU - Koroteev, Victor O.
AU - Shubin, Yury V.
AU - Smirnov, Dmitry A.
AU - Okotrub, Alexander V.
AU - Bulusheva, Lyubov G.
PY - 2018/1/1
Y1 - 2018/1/1
N2 - Hybrids of holey graphene (HG) and MoS2 have been prepared by a treatment of few-layered HG and amorphous MoS3, taken in a weight ratio of ≈5 and ≈10%, at 100 bar and 600 °C under vacuum. A study of the products by electron microscopy, X-ray diffraction, Raman scattering, and X-ray photoelectron spectroscopy has detected coating of graphene stacks by thin MoS2 layers. The near-edge X-ray absorption fine structure spectroscopy has revealed a covalent bonding between MoS2 and HG components. A hybrid with 5 wt.% of MoS2 showed a better rate capability for Li-ion intercalation/deintercalation as compared to the isolated HG and a hybrid with a higher MoS2 loading. Owing to the electrochemical impedance spectroscopy measurements, this was attributed to a faster charge transport in the hybrid with the thin MoS2 coating.
AB - Hybrids of holey graphene (HG) and MoS2 have been prepared by a treatment of few-layered HG and amorphous MoS3, taken in a weight ratio of ≈5 and ≈10%, at 100 bar and 600 °C under vacuum. A study of the products by electron microscopy, X-ray diffraction, Raman scattering, and X-ray photoelectron spectroscopy has detected coating of graphene stacks by thin MoS2 layers. The near-edge X-ray absorption fine structure spectroscopy has revealed a covalent bonding between MoS2 and HG components. A hybrid with 5 wt.% of MoS2 showed a better rate capability for Li-ion intercalation/deintercalation as compared to the isolated HG and a hybrid with a higher MoS2 loading. Owing to the electrochemical impedance spectroscopy measurements, this was attributed to a faster charge transport in the hybrid with the thin MoS2 coating.
KW - electrochemical impedance spectroscopy
KW - graphene
KW - Li-ion batteries
KW - MoS
KW - NEXAFS
KW - X-ray photoelectron spectroscopy
KW - STORAGE
KW - MoS2
KW - MOS2
KW - GRAPHITE
KW - ANODES
KW - SHEETS
KW - LITHIUM-ION
KW - FOAM
UR - http://www.scopus.com/inward/record.url?scp=85040790563&partnerID=8YFLogxK
U2 - 10.1002/pssb.201700262
DO - 10.1002/pssb.201700262
M3 - Article
AN - SCOPUS:85040790563
VL - 255
JO - Physica Status Solidi (B): Basic Research
JF - Physica Status Solidi (B): Basic Research
SN - 0370-1972
IS - 1
M1 - 1700262
ER -
ID: 12100414