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[1]聂薇a,b,田丰a,等.稻壳基多孔硬碳的制备及其储钠性能研究[J].有色金属科学与工程,2019,(05):10-16.
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稻壳基多孔硬碳的制备及其储钠性能研究(/HTML)
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《有色金属科学与工程》[ISSN:1674-9669/CN:36-1311/TF]

卷:
期数:
2019年05期
页码:
10-16
栏目:
出版日期:
2019-09-20

文章信息/Info

Title:
Preparation and sodium-storing property of rice husk-based porous hard carbon NIE Weia,b ,TIAN Fenga,b , YUAN Zhiqianga,b ,XU Jiamina,b ,LIU XIAO LIN a,b , ZHONG Shengwena,b
作者:
聂薇ab田丰ab袁志强ab许家敏ab刘小林ab钟盛文ab
(江西理工大学,a.材料科学与工程学院;b.江西省动力电池及其材料重点实验室,江西赣州 341000 )
Author(s):
-
(a. School of Materials Science and Engineering; b. Jiangxi Key Laboratory of Power Battery and Materials,Jiangxi University of Science and Technology, Ganzhou 341000,China)
关键词:
稻壳氢氧化钾水热法电化学性能
分类号:
TF111.52;TM912.2
DOI:
-
文献标志码:
A
摘要:
用稻壳做原料,不同浓度的氢氧化钾溶液做活化剂,采用水热法制备钠离子电池硬碳负极材料。利用X射线衍射(XRD)、扫描电子显微镜(SEM)、比表面积测试系统(BET)和电池性能测试系统,对其结构 、形貌和电化学性能进行表征。研究结果表明,用2mol/L浓度的氢氧化钾做活化剂制备的多孔碳材料(RHPC-1-2)具有37.6336 m2/g的高比面积且存在大量的微孔和中孔。RHPC-1-2材料具有高的可逆比容量为285mAh/g和初始库伦效率为72%。RHPC-1-2材料表现出优异的循环性能,在100mAg-1电流密度下,首次循环放电比容量为204mAh/g,循环100次后容量仍有200 mAh/g,容量几乎没有衰减。RHPC-1-2材料也表现出优异的倍率性能,在25mA/g、50mA/g、100mA/g、200mA/g和500mA/g电流密度下放电比容量分别是265mAh/g、247mAh/g、213mAh/g、170mAh/g和112mAh/g,当电流密度又是25 mA/g时,RHPC-1-2材料的放电比容量几乎没有下降。

参考文献/References:

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更新日期/Last Update: 2019-06-26