Gaoyao JIN, Haichuan HE, Jie WU, Mengyuan ZHANG, Yajuan LI, Younian LIU. Cobalt-doped Hollow Carbon Framework as Sulfur Host for the Cathode of Lithium Sulfur Battery [J]. Journal of Inorganic Materials, 2021, 36(2): 203
- Journal of Inorganic Materials
- Vol. 36, Issue 2, 203 (2021)
. Schematic illustration for the synthesis steps of hollow Co/C composite and its effect for the resulting electrode
. (a) XRD pattern, (b) Raman spectrum, (c) XPS spectrum and (d) N2 adsorption/desorption isotherm of Co/C-700 with insert in (d) showing pore size distribution
. XRD pattern of UWC-700
. (a) TGA curve of Co/C-700 in air and (b) XRD pattern of the final product
. (a, b) TEM, (c) high-resolution TEM (HRTEM) images and (d) EDS elemental mappings (Co, C and O) of Co/C-700
. N2 adsorption/desorption isotherms (a) and pore size distributions (b) of UWC-700 and HEC-700
. SEM image of Co/C-700
. XRD pattern (a) and SEM image (b) of HEC-700
. TGA curves of S@Co/C-700 and S@HEC-700 under N2 atmosphere
. XPS spectrum of S@Co/C-700 composite
. High resolution XPS spectra of Co/C-700(a) C1s; (b) O1s; (c) Co2p
. High resolution XPS spectra for S@Co/C-700 composites
. Photograph of static adsorption test of HEC-700 and Co/C-700 after standing for 1 h
. Multi-cycle CV curves of Co/C-700 based symmetric cells at 1 mV∙s-1 (a) and increased rates (b), and multi-cycle CV curves of HEC-700 at 1 mV∙s-1 (c) and increased rates (d)
. CV curves of (a) Co/C-700 and (b) HEC-700 based symmetric cells with and without 0.2 mol∙L-1 Li2S6 at 1 mV∙s-1; (c) CV curves and (d) EIS plots of S@Co/C-700 and S@HEC-700 electrodes
. (a) Rate capabilities at various rates from 0.5C to 10C and (b) cycling stabilities at 1C for S@Co/C-700 and S@HEC-700 electrodes
. Voltage profiles of S@HEC-700 (a) and S@Co/C-700 (b) electrodes at various rates from 0.5C to 10C
. (a) Cycling stabilities of S@Co/C-700 and S@HEC-700 electrodes at 2C ; (b) Cycling performance of S@Co/C-700 at 5C and 10C
| |||||||||||||||||||||||||||
Table 1.
BET surface area and pore volume distribution of UWC-700, Co/C-700 and HEC-700
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20