Fe3O4/N-doped carbon and MnO/N-doped carbon composites prepared from manganese ore tailings as high-performance anode materials for sodium-ion batteries

被引：0
作者：
Xu, Wenhan [1 ]
Li, Yanwei [1 ,2 ]
Zhu, Zhenghong [2 ]
Li, Yiqian [2 ]
Huang, Bin [2 ]
Yang, Jianwen [2 ]
Xiao, Shunhua [2 ]
Yao, Jinhuan [2 ]
机构：
[1] Guilin Univ Technol, Coll Mat Sci & Engn, Guilin 541004, Peoples R China
[2] Guilin Univ Technol, Coll Chem & Bioengn, Guilin 541004, Peoples R China
来源：
JOURNAL OF ENERGY STORAGE | 2025年 / 131卷
关键词：
Manganese ore tailings; Circular economy; Sodium-ion batteries; MnO; Energy storage and conversion; Fe3O4; GRAPHENE OXIDE COMPOSITE; LITHIUM-ION; FACILE SYNTHESIS; HIGH-CAPACITY; LI-ION; FE3O4; NANORODS; STORAGE; NANOSPHERES; NANOTUBES;
D O I：
10.1016/j.est.2025.117597
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Efficient and rational use of manganese ore tailings is valuable to environmental protection and economic development. Herein, the Fe3O4/nitrogen-doped carbon (Fe3O4/C) and MnO/nitrogen-doped carbon (MnO/C) composites are synthesized by a two-step precipitation process with manganese ore tailings as the Fe resources. The sodium storage properties of the two composites as anodes were investigated in depth. The C and MnO/C exhibit outstanding cyclic performance of 251.6 and 412.5 mAh g-1 after 1000 and 500 0.5 A g-1, respectively. Even at 5.0 A g-1, the Fe3O4/C and MnO/C still deliver specific capacities of 147.2 320.5 mAh g-1, respectively. Compared with pure Fe3O4 and MnO, the improved sodium storage performance Fe3O4/C and MnO/C composites can be attributed to the introduction of the N-doped carbon matrix. This matrix not only mitigates the agglomeration of metal oxide nanoparticles but also enhances the electrical ductivity of the composites. Moreover, it promotes the reactivation of Fe3O4/C and MnO/C electrodes repeated cycling. This work gives guidance for the high-value utilization of manganese ore tailings fabrication of high-performance metal oxide anodes for sodium-ion batteries.
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页数：12
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