Highly conductive manganese sesquioxide/Nitrogen-doped reduced graphene oxide composite for aqueous rechargeable zinc-ion batteries cathode

被引:1
|
作者
Yu, Hao [1 ]
Sun, Junru [1 ]
Wang, Zirui [1 ]
Ren, Manman [1 ]
Yang, Zhizhou [1 ]
Liu, Weiliang [1 ]
Yao, Jinshui [1 ]
Zhang, Changbin [2 ]
Zhao, Hui [1 ,3 ]
机构
[1] Qilu Univ Technol, Energy Res Inst,Shandong Acad Sci, Sch Mat Sci & Engn, State Key Lab Biobased Mat & Green Papermaking, Jinan 250353, Peoples R China
[2] Chinese Acad Sci, Res Ctr Eco Environm Sci, Beijing 100085, Peoples R China
[3] Sichuan Univ, Sch Chem Engn, State Key Lab Polymer Mat Engn, Chengdu 610065, Peoples R China
关键词
Zinc-ion batteries; Manganese sesquioxide; Nitrogen-doped reduced graphene oxide; Cathode; HIGH-CAPACITY; ANODE; MN2O3; MICROSPHERES; MECHANISM; DIOXIDE; LIFE; MNO2;
D O I
10.1007/s10971-023-06201-y
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Compared to lithium-ion batteries, aqueous rechargeable zinc-ion batteries (ZIBs) are of interest for their high safety and low cost. Manganese-based oxide materials as an attractive cathode candidate for ZIBs However, the low conductivity of manganese oxide materials leads to poor electrochemical performance. Herein, manganese sesquioxide/Nitrogen-doped reduced graphene oxide (Mn2O3/N-rGO) composite has been synthesized by hydrothermal method. The Mn2O3/N-rGO composite as ZIBs cathode material provides high electrical conductivity, which facilitates charge transfer and improves the overall electrochemical performance. The electrode provides 222.3mAh g(-1) of high reversible capacity with a current density of 100mAg(-1). A robust cycle stability with over 90% of initial capacity retained and 98% coulombic efficiency was observed following 500 cycles. Its excellent electrochemical behavior can be explained by the higher electrical conductivity, faster Zn2+ transfer, and stronger structural stability of N-rGO. In addition, the energy storage mechanism of H+ and Zn2+ coinsertion was also tentatively studied, which provides inspiration for future design and research on high-performance manganese-based materials cathodes of ZIBs. [GRAPHICS] .
引用
收藏
页码:660 / 668
页数:9
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