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首页> 外文期刊>Cellulose >A facile approach to prepare biomass-derived activated carbon hollow fibers from wood waste as high-performance supercapacitor electrodes
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A facile approach to prepare biomass-derived activated carbon hollow fibers from wood waste as high-performance supercapacitor electrodes

机译：一种易于制备生物质衍生的活性炭中空纤维的方法，从木材废料中作为高性能超级电容器电极

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摘要

In this paper, several activated carbon hollow fibers (ACHF) with high surface area of similar to 1873 m(2) g(-1) were prepared from wood waste by liquefaction, half-curing and one-step activation methods. Scanning electron microscopy, Nitrogen gas adsorption-desorption and X-ray photoelectron spectroscopy have been used to characterize the morphology, the structure and the composition of ACHF. Results show added wood charcoal had a noticeable influence on the pore structure and electrochemical performance of ACHF. Electrochemical investigation measurements show that ACHF exhibit an outstanding specific capacitance (295 F g(-1) at 0.5 A g(-1)), excellent rate performance (73.8% capacitance retention at 20 A g(-1)), high energy density (7.8 W h kg(-1)) and high capacitance retention of 99.5% over 10,000 charge-discharge cycles. Moreover, the multiple heteroatoms (N, P) from wood liquefaction have a synergistic effect on electrochemical properties of ACHF. These results indicate the present method is promising for the preparation of biomass-derived activated carbon hollow fibers from agricultural and forestry waste in the application of supercapacitors.
机译：本文以木材废料为原料，采用液化、半固化和一步活化的方法制备了高比表面积类似于1873m（2）g（-1）的活性炭中空纤维。利用扫描电子显微镜、氮气吸附-脱附和X射线光电子能谱对ACHF的形貌、结构和组成进行了表征。结果表明，添加木炭对ACHF的孔结构和电化学性能有显著影响。电化学研究测量表明，ACHF在0.5Ag（-1）下表现出优异的比电容（295 F g（-1）），在20Ag（-1）下表现出优异的速率性能（73.8%的电容保持率），在10000次充放电循环中表现出高能量密度（7.8 W h kg（-1））和99.5%的高电容保持率。此外，木材液化产生的多个杂原子（N，P）对ACHF的电化学性能具有协同效应。这些结果表明，本方法有望用于从农林废弃物中制备生物量衍生的活性炭中空纤维，并应用于超级电容器。

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  • 来源
    《Cellulose》 |2018年第8期|共13页
  • 作者

    Ma Xiaojun; Ding Chenfeng; Li Dongna; Wu Mingyue; Yu Yunhua;

  • 作者单位

    Tianjin Univ Sci &

    Technol Dept Wood Sci &

    Technol Tianjin 300222 Peoples R China;

    Beijing Univ Chem Technol Coll Mat Sci &

    Engn State Key Lab Organ Inorgan Composites Beijing 100029 Peoples R China;

    Tianjin Univ Sci &

    Technol Dept Wood Sci &

    Technol Tianjin 300222 Peoples R China;

    Tianjin Univ Sci &

    Technol Dept Wood Sci &

    Technol Tianjin 300222 Peoples R China;

    Beijing Univ Chem Technol Coll Mat Sci &

    Engn State Key Lab Organ Inorgan Composites Beijing 100029 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 有机化学;
  • 关键词

    Wood waste; Activated carbon hollow fibers; Supercapacitors; Half-curing; Liquefaction;

    机译：木材废料;活性炭中空纤维;超级电容器;半固化;液化;

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