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Nanomaterials 2019, 9(1), 84; https://doi.org/10.3390/nano9010084

Moss-Derived Mesoporous Carbon as Bi-Functional Electrode Materials for Lithium–Sulfur Batteries and Supercapacitors

1
The State Key Laboratory of Refractories and Metallurgy, and Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan 430081, China
2
Hefei Guoxuan High-Tech Power Energy Co., Ltd., 599 Daihe Road, Hefei 230000, China
3
ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, Institute of Innovative Materials (AIIM), Innovation Campus, University of Wollongong, Wollongong 2500, Australia
*
Authors to whom correspondence should be addressed.
Received: 16 December 2018 / Revised: 1 January 2019 / Accepted: 6 January 2019 / Published: 10 January 2019
(This article belongs to the Special Issue Nanostructured Porous Carbon based 3D Architectures)
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Abstract

In this work, we reported a moss-derived biomass porous carbon (MPC) as a bi-functional electrode material for both the lithium–sulfur battery and the supercapacitor. The MPC was prepared from a high-temperature calcination procedure using the moss as the carbonaceous precursor. Using NaOH, the MPC was activated to give a mesoporous structure with a high specific surface area (1057.1 m2 g−1) and large pore volume (0.72 cm3 g−1). When it was used as the cathode material in lithium–sulfur batteries, the MPC material realized a sulfur loading and exhibited a remarkably improved electrochemical performance, i.e., a high discharge capacity of 1070 mAh g−1 at 0.1 C. This activated MPC also worked well as a capacitive electrode in supercapacitors, demonstrating a high specific capacitance of 332 F g−1 (scan rate of 1.0 A g−1) and a high capacity retention > 97% in a long-term cycle of 1000 charge/discharges. This work demonstrated a facile method for the utilization of activated waste biomass material for future clean energy applications. View Full-Text
Keywords: moss; biomass derived carbon; lithium–sulfur batteries; supercapacitors moss; biomass derived carbon; lithium–sulfur batteries; supercapacitors
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Lei, W.; Liu, H.; Xiao, J.; Wang, Y.; Lin, L. Moss-Derived Mesoporous Carbon as Bi-Functional Electrode Materials for Lithium–Sulfur Batteries and Supercapacitors. Nanomaterials 2019, 9, 84.

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