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Electrospun porous carbon nanofibers derived from bio-based phenolic resins as free-standing electrodes for high-performance supercapacitors

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Frontiers of Chemical Science and Engineering 2023年第5期17卷 504-515页

作者： Yongsheng Zhang Xiaomeng Yang Jinpan Bao Hang Qian Dong Sui Jianshe Wang Chunbao Charles Xu Yanfang Huang School of Chemical Engineering Zhengzhou UniversityZhengzhou 450001China School of Chemistry and Chemical Engineering Luoyang Normal UniversityLuoyang 471934China Department of Chemical and Biochemical Engineering Western UniversityLondonN6A 3K7Canada

Phenolic resins were employed to prepare electrospun porous carbon nanofibers with a high specific surface area as free-standing electrodes for high-performance ***,the sustainable development of conventional phenolic resin has been challenged by petroleum-based phenol and *** with abundant phenolic hydroxyl groups is the main non-petroleum resource that can provide renewable aromatic ***,lignin,phenol,and furfural were used to synthesize bio-based phenolic resins,and the activated carbon nanofibers were obtained by electrospinning and one-step carbonization *** transform infrared and differential scanning calorimetry were used to characterize the structural and thermal *** results reveal that the apparent activation energy of the curing reaction is 89.21 kJ·mol–1 and the reaction order is *** activated carbon nanofibers show a uniform diameter,specific surface area up to 1100 m^(2)·g^(-1),and total pore volume of 0.62 cm^(3)·g^(-1).The electrode demonstrates a specific capacitance of 238 F·g^(-1)(0.1 A·g^(-1))and good rate *** symmetric supercapacitor yields a high energy density of 26.39 W·h·kg^(-1)at 100 W·kg^(-1)and an excellent capacitance retention of 98%after 10000 *** results confirm that the activated carbon nanofiber from bio-based phenolic resins can be applied as electrode material for high-performance supercapacitors.

关键词： lignin bio-based phenolic resins electrospinning activated carbon nanofibers supercapacitors

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Characteristic Assessment of Stabilized Polyacrylonitrile Nanowebs for the Production of activated carbon Nano-Sorbents

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Chinese Journal of Polymer Science 2014年第4期32卷 449-457页

作者： S.Rafiei B.Noroozi Sh.Arbab A.K.Haghi Department of Textile Engineering University of Guilan

Polyacrylonitrile （PAN） nanofibers with average diameter of 300 nm were produced by electro-spinning. The nanofibers were stabilized at different temperatures in the range of 180-270 ℃in several duration times and heating rates. Fourier transforms infrared （FTIR） spectroscopy, differential scanning calorimetry （DSC） and X-ray diffraction （XRD） analyzing techniques were employed to measure the extent of stabilization reaction. By all procedures, the ranges of temperature and duration time recommended were about 250-270 ℃ and 1-2 h, respectively. Increasing the activation temperature from 800 ℃ to 1200 ℃ caused porosity and pore volume development up to 60% and 0.532 cm3/g, respectively. Pore width of all samples was calculated to be about 0.7 nm confirming micro-pore structure of the produced PAN based activated carbon nanofibers. Comparing dye adsorption for different adsorbents including chitin and granular activated carbon （GAC） showed the highest efficiency for the produced activated carbon nanofibers （ACNFs）.

关键词： Polyacrylonitrile Electro-spinning Stabilization activated carbon nanofibers Adsorbent.

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维普期刊数据库

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Preparation of metal oxide doped ACNFs and their adsorption performance for low concentration SO_2

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International Journal of Minerals,Metallurgy and Materials 2013年第11期20卷 1102-1106页

作者： Hong-quan Yu Yan-bo Wu Tie-ben Song Yue Li Yu Shen College of Environmental and Chemical Engineering Dalian Jiaotong University

Metal oxide （TiO2 or Co304） doped activated carbon nanofibers （ACNFs） were prepared by electrospinning. These nanofibers were characterized by X-ray diffraction （XRD）, scanning electron microscopy （SEM）, and Brunner- Emmett-Teller method （BET）. The results show that the average diameters of ACNFs were within the range of 200-500 nm, and the lengths were several tens of micrometers. The specific surface areas were 1146.7 m2/g for TiO2-doped ACNFs and 1238.5 m2/g for Co304-doped ACNFs, respectively. The electrospun nanofibers were used for adsorption of low concentration sulfur dioxide （SO2）. The results showed that the adsorption rates of these ACNFs increased with an increase in SO2concentration. When the SO2 concentration was 1.0 μg/mL, the adsorption rates of TiO2-doped ACNFs and Co3Oa-doped ACNFs were 66.2% and 67.1%, respectively. The adsorption rate also increased as the adsorption time increased. When the adsorption time was 40 min, the adsorption rates were 67.6% and 69.0% for TiO2-doped ACNFs and Co304-doped ACNFs, respectively. The adsorption rate decreased as the adsorption temperature increased below 60℃, while it increased as the adsorption temperature increased to more than 60℃.

关键词： activated carbon nanofibers metal oxides electrospinning adsorption sulfur dioxide

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