Construction of Dual‐Mesoporous Carbon Fibers Via Coassembly for Supercapacitors,Physica Status Solidi (A) - Applications and Materials Science

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Construction of Dual‐Mesoporous Carbon Fibers Via Coassembly for Supercapacitors
Physica Status Solidi (A) - Applications and Materials Science Pub Date : 2020-10-20 , DOI: 10.1002/pssa.202000365
Juan Du ₁ , Haijun Lv ₁ , Yifeng Yu ₁ , Aibing Chen _{1,

2}

Affiliation

Mesoporous carbon fiber (MCF) has shown great application prospects in the field of electrochemical energy storage due to its large specific surface area, large draw ratio, fast electron transfer ability, and good cycle stability. Herein, the dual‐mesoporous carbon fibers (DMCF) is prepared via a coassembly process with phenolic resin oligomers as carbon precursors, sodium silicate (silica precursor) as an assistant, and cetyltrimethylammonium bromide and pluronic F127 as templates. The silica and F127 micelles provide mesoporous sizes of 3.8 and 2.6 nm, respectively. The obtained DMCF has fibrous morphology, high specific surface area, and double mesoporous structure. Compared with carbon fibers with a single pore distribution, DMCF exhibits an excellent specific capacitance of 264 F g⁻¹ at 0.5 A g⁻¹ and shows good cycle stability as an electrode material in supercapacitors, demonstrating the enormous potential of DMCF in energy‐storage applications.

中文翻译：

通过超级电容器的共组装构造双中孔碳纤维

中孔碳纤维（MCF）由于其比表面积大，拉伸比大，电子传递能力快，循环稳定性好等优点，在电化学储能领域具有广阔的应用前景。在此，双中碳碳纤维（DMCF）是通过以酚醛树脂低聚物为碳前体，硅酸钠（二氧化硅前体）为助剂，十六烷基三甲基溴化铵和普朗尼克F127为模板的共组装工艺制备的。二氧化硅和F127胶束的介孔尺寸分别为3.8和2.6 nm。所获得的DMCF具有纤维形态，高比表面积和双介孔结构。与具有单孔分布的碳纤维相比，DMCF在0.5 A g时具有264 F g ^-1的出色比电容^-1并显示出良好的循环稳定性，作为超级电容器中的电极材料，证明了DMCF在储能应用中的巨大潜力。

更新日期：2020-12-04

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