Facile sol-gel method combined with chemical vapor deposition for mesoporous few-layer carbon

Facile sol-gel method combined with chemical vapor deposition for mesoporous few-layer carbon
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简便的溶胶-凝胶法结合化学气相沉积介孔少层碳

DOI:
10.1016/j.carbon.2016.10.093
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发表时间:
2017-02
期刊:
影响因子:
10.9
通讯作者:
Huang Fuqiang
Huang Fuqiang
中科院分区:
材料科学2区
文献类型:
--
作者:
Qian Meng;Xu Feng;Bi Hui;Lin Tianquan;Huang Fuqiang

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碳材料具有高比表面积、多级孔结构和高导电性等特点,在储能领域具有广阔的应用前景。本文采用镁干凝胶与化学气相沉积相结合的方法合成了具有高比表面积、独特的纳米孔结构和良好电子导电性的介孔少层碳(1-4层)。这种碳材料显示出独特的3 nm立方孔结构,并确保了具有高比表面积(2085 m2/g)的高电导率。在前驱体中加入苯甲醇有利于高温石墨化,进一步提高了样品的导电性。这种介孔少层碳表现出242 F g− 1的超级电容器比电容,并且在10,000次循环中保持稳定。该方法为制备三维介孔少层炭储能材料提供了一种简便的方法。
Carbon materials show promising application on energy storage due to high specific area, hierarchical porous structure and high electrical conductivity. Here mesoporous few-layer carbon (1–4 layer) with high specific surface area, unique nanoporous structure and good electron conductivity is synthesized via facile magnesium xerogels combined with chemical vapor deposition. This carbon material shows a unique 3 nm cubic pore structure and ensured great electrical conductivity with high specific area (2085 m2/g). We also find that adding benzyl alcohol in the precursor is in favor of the graphitization at high temperature and it can improve electrical conductivity of the sample further. This mesoporous few-layer carbon exhibits a specific capacitance of 242 F g−1for supercapacitors and it is stable over 10,000 cycles. The method provides a facile way to synthesize three dimensional mesoporous few-layer carbon for energy storages.
新型石墨烯纳米多孔整体材料可实现出色的能量存储
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