多孔碳纳米片的合成及在钠离子电池中的应用

本文以氯化钠为硬模板、硝酸镍为金属源、葡萄糖为碳源,在氮气气氛中于750 o C通过一步热解法合成嵌镍碳纳米片,然后经酸处理得到多孔碳纳米片.通过扫描电镜（SEM）、透射电镜（TEM）、拉曼光谱（Raman）和比表面积测定（BET）表征多孔碳纳米片的形貌和结构.结果显示,多孔碳纳米片孔分布均匀,孔径大小均一,具有较大的比表面积（约340 m2·g（-1））.经过酸处理后,碳材料的石墨化程度降低.电化学测试表明,电极在100 m A·g（-1）电流密度下,经过200周循环放电后比容量可维持在309.4 m Ah·g（-1）,甚至在1000 m A·g（-1）的大电流下其放电比容量仍然可达到173...

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Published in电化学 Vol. 21; no. 6; pp. 548 - 553
Main Author 张京飞 陆静 杨晓宇 黄韵迪 徐林 孙冬梅 唐亚文
Format Journal Article
LanguageChinese
Published 23.12.2015
Subjects
多孔碳纳米片
热解法
负极材料
钠离子电池
Online AccessGet full text
ISSN1006-3471
2993-074X
DOI10.13208/j.electrochem.150846

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Abstract 本文以氯化钠为硬模板、硝酸镍为金属源、葡萄糖为碳源,在氮气气氛中于750 o C通过一步热解法合成嵌镍碳纳米片,然后经酸处理得到多孔碳纳米片.通过扫描电镜（SEM）、透射电镜（TEM）、拉曼光谱（Raman）和比表面积测定（BET）表征多孔碳纳米片的形貌和结构.结果显示,多孔碳纳米片孔分布均匀,孔径大小均一,具有较大的比表面积（约340 m2·g（-1））.经过酸处理后,碳材料的石墨化程度降低.电化学测试表明,电极在100 m A·g（-1）电流密度下,经过200周循环放电后比容量可维持在309.4 m Ah·g（-1）,甚至在1000 m A·g（-1）的大电流下其放电比容量仍然可达到173 m Ah·g（-1）,表现出良好的循环稳定性和倍率性能,在钠离子电池负极材料方面具有潜在的应用前景.
AbstractList 本文以氯化钠为硬模板、硝酸镍为金属源、葡萄糖为碳源,在氮气气氛中于750 o C通过一步热解法合成嵌镍碳纳米片,然后经酸处理得到多孔碳纳米片.通过扫描电镜（SEM）、透射电镜（TEM）、拉曼光谱（Raman）和比表面积测定（BET）表征多孔碳纳米片的形貌和结构.结果显示,多孔碳纳米片孔分布均匀,孔径大小均一,具有较大的比表面积（约340 m2·g（-1））.经过酸处理后,碳材料的石墨化程度降低.电化学测试表明,电极在100 m A·g（-1）电流密度下,经过200周循环放电后比容量可维持在309.4 m Ah·g（-1）,甚至在1000 m A·g（-1）的大电流下其放电比容量仍然可达到173 m Ah·g（-1）,表现出良好的循环稳定性和倍率性能,在钠离子电池负极材料方面具有潜在的应用前景.
Author 张京飞 陆静 杨晓宇 黄韵迪 徐林 孙冬梅 唐亚文
AuthorAffiliation 南京师范大学化学与材料科学学院、江苏省新型动力电池重点实验室,江苏南京210023
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DocumentTitleAlternate Synthesis of Porous Carbon Nanosheets for Application in Sodium-Ion Battery
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Notes Owning to high abundance of sodium, its relatively low cost, similar chemical properties to lithium and very suitable redox potential of E~0（Na＋/Na） =-2.71 V versus SHE which is only 0.3 V above that of lithium, rechargeable sodium ion batteries hold much promise as potential alternatives to current lithium ion batteries for energy storage applications. Carbon material is regarded as the most promising anode candidate for sodium ion battery. Particularly, carbon nanosheet with porous structure and high conductivity is expected to have improved sodium ion storage properties. In this paper, we present a two-step pyrolysis-based method for facile synthesis of porous carbon nanosheets with high capacity as anode in sodium ion battery. In this method, sodium chloride was selected as a hard template, nickel nitrate as the metal source and glucose as the carbon source with pyrolysis temperature of 750 °C in nitrogen atmosphere. The first obtained is Ni-incorporated carbon nanosheets which were refluxed with dilute h
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PublicationTitle 电化学
PublicationTitleAlternate Electrochemistry
PublicationYear 2015
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Snippet 本文以氯化钠为硬模板、硝酸镍为金属源、葡萄糖为碳源,在氮气气氛中于750 o...
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StartPage 548
SubjectTerms 多孔碳纳米片
热解法
负极材料
钠离子电池
Title 多孔碳纳米片的合成及在钠离子电池中的应用
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