Hollow Carbon Nanoparticles of Tunable Size and Wall Thickness by Hydrothermal Treatment of α-Cyclodextrin Templated by F127 Block Copolymers
Hollow Carbon Nanoparticles of Tunable Size and Wall Thickness by Hydrothermal Treatment of α-Cyclodextrin Templated by F127 Block Copolymers
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DOI：
10.1021/cm303513y
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发表时间：
2013-02
影响因子：
8.6
通讯作者：
Zhengchun Yang;Yu Zhang;Junhua Kong;Siew Yee Wong;Xu Li;John Wang
中科院分区：
文献类型：
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作者：
Zhengchun Yang;Yu Zhang;Junhua Kong;Siew Yee Wong;Xu Li;John Wang
基于α-环糊精与聚环氧乙烷形成超分子结构的策略，以Pluronic F127为软模板剂，采用水热法制备了尺寸和形貌可控的空心碳纳米颗粒。由此衍生的中空碳纳米颗粒被证明表现出优异的亲水行为。它们的尺寸和壁厚可以通过调节α-环糊精与F127的比例来调节。在氩气中在900 °C下热解后，中空碳纳米颗粒表现出中孔/微孔碳壁，当用作锂离子电池中的阳极时，其具有>400 m2/g的比表面积和>450 mAh/g的高充电比容量。
On the basis of the strategy of forming supermolecular structure between α-cyclodextrin and poly(ethylene oxide), a facile synthesis process has been successfully developed for producing hollow carbon nanoparticles of controllable size and morphology by hydrothermal treatment of α-cyclodextrin in the presence of Pluronic F127 as a soft template. The hollow carbon nanoparticles thus derived are demonstrated to exhibit excellent hydrophilic behavior. Their sizes and wall thicknesses can be tuned by adjusting the ratio of α-cyclodextrin to F127. After pyrolysis at 900 °C in argon gas, the hollow carbon nanoparticles exhibit a meso-/microporous carbon wall with specific surface area of >400 m2/g and a high specific charge capacity of >450 mAh/g when employed as an anode in a lithium ion battery.