Preparation of three-dimensional nanosheet-based molybdenum disulfide nanotubes as anode materials for lithium storage

Abstract

MoS2 nanotubes constructed with nanosheets obtained by a facile solvothermal method using the MoO3 nanorod precursor show excellent lithium-ion storage performances.

Uniform Yolk–Shell MoS2@Carbon Microsphere Anodes for High‐Performance Lithium‐Ion Batteries

“…All four curves show two characteristic peaks at 381 and 405 cm −1 , which correspond to the E 1 2g and A 1 g vibration modes of MoS 2 , respectively (Figure ). The E 1 2g mode reflects the in‐plane displacement of Mo and S atoms, whereas the A 1 g vibration mode involves the out‐of‐plane symmetric displacement of S atoms along the c axis . Note that H 2 O 2 etching significantly reduces the intensity of the two peaks because of the decreased MoS 2 contents.…”

“…The E 1 2g mode reflects the in-plane displacemento fM oa nd Sa toms, whereas the A 1 g vibration mode involves the out-of-plane symmetric displacement of Sa toms along the c axis. [2,37,38] Note that H 2 O 2 etching significantly reduces the intensity of the two peaks because of the decreased MoS 2 contents. Additionally,t he Ramans pectra of all four curvesd isplay two similarb road peaks around 1371 (D-band) and 1608 cm À1 (G-band), two typical characteristicso f carbon materials.…”

Template‐Free Synthesis of Hierarchical Composite Nanotubes with Superior Lithium and Sodium Storage Performance

“…Solid carbon nanofibers (see Figure a,b) were prepared by electrospinning, the solution of PVP and ammonium molybdate (see Figure S3(a), Supporting Information), followed by annealing in argon (see Figure a). Finally, as shown in Figure b, MoS 2 /C nanofibers were formed by hydrothermal vulcanization . Solid nanofibers were also obtained from cerium nitrate and PVP precursors by the electrospinning method (see Figure S3(b), Supporting Information).…”

General approach for preparing sandwich-structured metal sulfide@reduced graphene oxide as highly reversible Li-ion battery anode

“…X-ray diffraction (XRD) peaks ( Figure S5a) are assigned to the hexagonal MoS 2 (JCPDS card no. 37-1492) [20]. In Raman spectra ( Figure S5b), the peaks at 1346 and 1599 cm −1 are indexed to the D and G bands of graphene, respectively; whereas the peaks at 377.1 and 404.3 cm −1 are assigned to the E 1 2g and A 1g modes of the MoS 2 crystal, respectively [21].…”

“…In Raman spectra ( Figure S5b), the peaks at 1346 and 1599 cm −1 are indexed to the D and G bands of graphene, respectively; whereas the peaks at 377.1 and 404.3 cm −1 are assigned to the E 1 2g and A 1g modes of the MoS 2 crystal, respectively [21]. In addition, Figure S6a shows the survey XPS spectrum of the MoS 2 @rGO, in which the signals of Mo (Mo 3d 5/2 , 3d 3/2 ) and S (S 2p) are detected [20,22]. From the N 2 adsorption-desorption isotherm ( Figure S7), a distinct hysteresis loop can be identified, indicating a mesoporous structure.…”