Size-controllable templates for the synthesis of porous carbon with tunable pore configurations

Size-controllable templates for the synthesis of porous carbon with tunable pore configurations
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用于合成具有可调孔结构的多孔碳的尺寸可控模板

DOI:
10.1016/j.matlet.2016.03.062
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发表时间:
2016-07
期刊:
Material letters
影响因子:
--
通讯作者:
Shaohua Wu
Shaohua Wu
中科院分区:
其他
文献类型:
--
作者:
Fei Sun;Jihui Gao;Xin Liu;Yuqi Yang;Shaohua Wu

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采用胶体法制备了微孔炭(MPC)和层状多孔炭(HPC),并用相同的碳源和孔板对其进行了精确设计。正硅酸乙酯在酸性条件下的水解和缩合反应得到了具有高度微孔结构的MPC,其比表面积为2068Fg−1,孔体积为0.99Gcm3g−1,而在碱性条件下反应生成的碳具有层次化的多孔结构,比表面积为1051Fg−1,孔体积为0.8cm3g−1。MPC也被证明是一种很有前途的超级电容器候选材料,在0.5A Gg−1和50A Gg−1时,MPC的比容量分别为287F−1和152F−1。
Microporous carbon (MPC) and hierarchically porous carbon (HPC) were precisely designed by a colloidal process using the same carbon source and pore template. Tetraethyl orthosilicate (TEOS) hydrolysis and condensation reaction under acid condition yields the MPC featuring a highly microporous structure with BET surface area of 2068 m2g−1and pore volume of 0.99 cm3g−1while the reaction under alkaline condition makes the resulting carbon with hierarchically porous structure (HPC), giving a surface area of 1051 m2g−1and pore volume of 0.8 cm3g−1. MPC is also proved to be a promising candidate for supercapacitors with a high capacitance of 287 F g−1at 0.5 A g−1and 152 F g−1at 50 A g−1.
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