Biomass-derived mesoporous carbons materials coated by α-Mn3O4 with ultrafast zinc-ion diffusion ability as cathode for aqueous zinc ion batteries. (1st March 2020)

• Record Type: Journal Article
• Authors: Gao, Qing-Li; Li, Dong-Shuai; Liu, Xue-Min; Wang, Yi-Fan; Liu, Wei-Liang; Ren, Man-Man; Kong, Fan-Gong; Wang, Shou-Juan; Zhou, Ru-Cong
• Is Part Of: Electrochimica acta. Volume 335(2020)
• Publication Date: 2020-03-01
• Subjects: Waste litchi shells -- Mesoporous carbon materials -- Biomass -- Diffusion coefficient -- Zinc ion batteries; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2020.135642
• Languages: English
• ISSNs: 0013-4686

Abstract

Abstract: 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 Mn3 O4 particles were designed to coat the homemade MCM4 ( W M C M s : W K O H = 1 : 4 ), which exhibited enhanced electrochemical behavior as cathode materials for aqueous zinc ion batteries (AZIBs). In addition, the diffusion coefficient of Zn 2+ was calculated by cyclic voltammetry, revealing that the electrochemical process of a cell is affected by Zn 2+ ions diffusion. The batteries exhibited an excellent cyclic performance through the effective synergy between Mn3 O4 and MCM4, which provides a feasible scheme for the development of low-cost and eco-friendly cathode materials for AZIBs.