Hybrid Nanostructures of MoS2/Sisal Fiber Tubular Carbon as Anode Material for Lithium ion Batteries

Abstract

Environmentally friendly and low-cost MoS 2 /sisal fiber tubular carbon (MoS 2 /SFTC) nanohybrids have been prepared via a facile hydrothermal-anneal strategy, in which the tubular biomass carbon derived from natural sisal fibers as a conductive base. The as-prepared nanohybrids are characterized by Raman spectra, XRD, XPS, FESEM, TEM and EDS. It is shown that the sisal fiber tubular carbons with nanowrinkles and nanofolds were uniformly coated with vertical MoS 2 nanosheets on the surface. As an anode material for lithium ion batteries, the MoS 2 /SFTC nanohybrids possess an excellent cycling performance, superior rate capability and high reversible capacity. A reversible specific capacity of 437.2 mA h g -1 is maintained after 50 cycles at the current density of 50 mA g -1 . Even at a high current density of 2000 mA g -1 , the reversible specific capacity could be retained at 241.1 mA h g -1 . The superior electrochemical performance of the MoS 2 /SFTC nanohybrids can be attributed to the synergistic effects of uniform vertical MoS 2 nanosheets and conductive SFTC nanostructures.

Self-supporting network-structured MoS2/heteroatom-doped graphene as superior anode materials for sodium storage

“…As shown in Fig. 2B, four peaks appeared at about 533.4 eV, 532.4 eV, 531.6 eV, and 530.6 eV in O 1s, which are identified as combining energy peaks of O–CO, O–C, OC, and O–H, 40–42 respectively. In the case of C 1s, four peaks at the binding energies of about 289.1 eV, 286.1 eV, 285.0 eV, and 284.4 eV in Fig.…”

Sulfur-Rich (NH4)2Mo3S13 as a Highly Reversible Anode for Sodium/Potassium-Ion Batteries

“…As illustrated in Figure S12, the (NH 4 ) 2 Mo 3 S 13 has a higher capacity than pure MoS 2. , In addition, the discharge capacity curves first decreased and then increased and eventually stabilized. The mechanism for storing Na + in the (NH 4 ) 2 Mo 3 S 13 anode will be studied in detail later.…”

Boosting the Initial Coulomb Efficiency of Sisal Fiber-Derived Carbon Anode for Sodium Ion Batteries by Microstructure Controlling

“…The tubular sisal fiber carbon was prepared based on the methods used in our previous work [22], and the preparation process is as follows:…”

“…Among many studies, it was found that the hard carbon derived from cellulose-rich sisal fibers, with the advantages of low cost, green, and sustainable bioresource, exhibits excellent electrochemical performance when used as an anode for LIBs. The main focus of our previous work was to modulate the structure of sisal fibers using chemical activation and calcination methods, and to obtain sisal fiber carbon with various morphologies and structures [22][23][24] (its chemical activation reagents were KOH and HCl). Generally, the ICE of hard carbon can be effectively improved by controlling the defect concentration and specific surface area [25], but developing appropriate structures to ensure structural stability and high Coulombic efficiency, without affecting the electrolyte-electrolyte interface behavior, remains a challenge.…”