化工新型材料

化工新型材料 ›› 2020, Vol. 48 ›› Issue (10) : 197-200. DOI: 10.19817/j.cnki.issn 1006-3536.2020.10.042

科学研究

三维Fe₂O₃纳米材料的设计合成及电化学性能研究

党丽赟, 赵海鹏, 雷佑安, 李节, 麻梦雅, 杨航, 罗雪博

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Designing synthesis and electrochemical performance of 3D Fe₂O₃ nanomaterial

Dang Liyun, Zhao Haipeng, Lei Youan, Li Jie, Ma Mengya, Yang Hang, Luo Xuebo

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摘要

以硝酸铁、磷酸二氢钾为原料,通过溶剂热法制备出三维Fe₂O₃(三氧化二铁)纳米材料。采用扫描电子显微镜、透射电子显微镜、X射线衍射仪对Fe₂O₃纳米材料的微观形貌、物相结构进行了分析。结果表明:Fe₂O₃纳米材料为六方相晶体结构,结晶性能良好,其三维纳米盘状结构由粒径较小的晶粒堆砌而成。电化学性能测试结果显示,三维Fe₂O₃纳米材料具有良好的锂离子电池循环稳定性,循环100圈后,放电比容量仍高达800.5mAh/g,高放电比容量与材料稳定的三维纳米盘状结构有关。

Abstract

3D Fe₂O₃ nanomaterial was synthesized via solvent-thermal method using ferric nitrate and monopotassium phosphate as raw materials.Then SEM,TEM and XRD analysis were applied to research microscopic morphology and structure of the products.The results were as follows:Fe₂O₃ nanomaterial was pure Fe₂O₃ with rhombohedral hexahedron crystal structure and high crystallity.The 3D structure was constructed with little nanoparticles.Results of electrochemical performance test showed that Fe₂O₃ nanomaterial had excellent lithium ion battery cyclic stability.And the discharge capacity was 800.5mAh/g after 100 cycles.The steady electrochemical performance attributed to stable 3D nanoplate structure.

关键词

负极材料 / 锂离子电池 / 溶剂热法 / 电化学性能

Key words

anode material / Li-ion battery / solvent-thermal method / electrochemical performance

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三维Fe₂O₃纳米材料的设计合成及电化学性能研究[J]. 化工新型材料, 2020, 48(10): 197-200 DOI:10.19817/j.cnki.issn 1006-3536.2020.10.042

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