Journal
ELECTROCHIMICA ACTA
Volume 335, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2020.135642
Keywords
Waste litchi shells; Mesoporous carbon materials; Biomass; Diffusion coefficient; Zinc ion batteries
Categories
Funding
- Shandong Province Natural Science Foundation [ZR2012EMM009, ZR2018MEM012]
- Foundation of State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences) [ZZ20190107]
- Foundation of Key Laboratory of Pulp and Paper Science and Technology of Ministry of Education/Shandong Province of China [KF201602]
- Scientific Research Foundation for the Returned Overseas Scholars in Jinan [20100406]
- National Training Program of Innovation and Entrepreneurship for Undergraduates [201610431033, 201810431008]
- Qilu University of Technology International Cooperation Fund [QLUTGJHZ2018025]
- National Natural Science Foundations of China [31971605, 31570566, 31500489, 51403111, 51503107]
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Biomass-derived mesoporous carbon materials (MCMs) with high specific surface area and pore volume were prepared from waste litchi shells using KOH activation method. Furthermore, the Mn3O4 particles were designed to coat the homemade MCM4 (W-MCMS W-KOH = 1 : 4), which exhibited enhanced electrochemical behavior as cathode materials for aqueous zinc ion batteries (AZIBs). In addition, the diffusion coefficient of Zn2+ was calculated by cyclic voltammetry, revealing that the electrochemical process of a cell is affected by Zn2+ ions diffusion. The batteries exhibited an excellent cyclic performance through the effective synergy between Mn3O4 and MCM4, which provides a feasible scheme for the development of low-cost and eco-friendly cathode materials for AZIBs. (C) 2020 Elsevier Ltd. All rights reserved.
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