Filled and Hollow Carbon Nanofibers by Coaxial Electrospinning of Alcell Lignin without Binder Polymers

ABSTRACTElectro-hydro-dynamic (EHD) compound jets, with diameters in the micro and nanometric size range, from conical menisci of two co-flowing liquids, is a consolidated platform for the production of nanofibers with inner structure, in a process so-called coaxial electrospinning or co-electrospinning. In contrast to other multi-step template based procedures, the EHD methodology is much more simple and general since, firstly, a solid template is needless and, secondly, the process is seldom affected by the chemistry of the liquids. This gentle process allows selecting the liquid precursors depending on the application sought for the nanofibers. Here, we review different products obtained by this EHD technique: (1) solid and hollow carbon nanofibers from different precursors (polyacrylonitrile, polyvinylpyrrolidone and lignin), (2) nanofibers of biocompatible polymers encapsulating liquids in the form of beads, (3) spinning nanofibers of alginate and (4) in-fiber encapsulation of active microgels.

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Highly active Fe7S8 encapsulated in N-doped hollow carbon nanofibers for high-rate sodium-ion batteries

Journal of Energy Chemistry ◽

10.1016/j.jechem.2020.05.011 ◽

2021 ◽

Vol 53 ◽

pp. 26-35 ◽

Cited By ~ 5

Author(s):

Chengzhi Zhang ◽

Donghai Wei ◽

Fei Wang ◽

Guanhua Zhang ◽

Junfei Duan ◽

...

Keyword(s):

Carbon Nanofibers ◽

Sodium Ion ◽

High Rate ◽

Sodium Ion Batteries ◽

Highly Active ◽

Hollow Carbon

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Soft-templated synthesis of mesoporous carbon nanospheres and hollow carbon nanofibers

Applied Surface Science ◽

10.1016/j.apsusc.2013.06.072 ◽

2013 ◽

Vol 282 ◽

pp. 862-869 ◽

Cited By ~ 15

Author(s):

Youliang Cheng ◽

Tiehu Li ◽

Changqing Fang ◽

Maorong Zhang ◽

Xiaolong Liu ◽

...

Keyword(s):

Carbon Nanofibers ◽

Mesoporous Carbon ◽

Carbon Nanospheres ◽

Templated Synthesis ◽

Hollow Carbon

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Sulfur-impregnated N-doped hollow carbon nanofibers as cathode for lithium-sulfur batteries

Materials Letters ◽

10.1016/j.matlet.2017.08.083 ◽

2017 ◽

Vol 209 ◽

pp. 505-508 ◽

Cited By ~ 13

Author(s):

Xiaoyan Li ◽

Nianqing Fu ◽

Jizhao Zou ◽

Xierong Zeng ◽

Yuming Chen ◽

...

Keyword(s):

Carbon Nanofibers ◽

Lithium Sulfur Batteries ◽

Hollow Carbon ◽

Lithium Sulfur

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Molybdenum Carbide‐Embedded Multichannel Hollow Carbon Nanofibers as Bifunctional Catalysts for Water Splitting

Chemistry - An Asian Journal ◽

10.1002/asia.201901815 ◽

2020 ◽

Vol 15 (13) ◽

pp. 1957-1962 ◽

Cited By ~ 2

Author(s):

Changchun Ji ◽

Guang Yang ◽

P. Robert Ilango ◽

Junnan Song ◽

Deshuang Yu ◽

...

Keyword(s):

Water Splitting ◽

Carbon Nanofibers ◽

Molybdenum Carbide ◽

Bifunctional Catalysts ◽

Hollow Carbon

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Nitrogen and sulfur co-doped hollow carbon nanofibers decorated with sulfur doped anatase TiO2 with superior sodium and lithium storage properties

Journal of Alloys and Compounds ◽

10.1016/j.jallcom.2016.11.004 ◽

2017 ◽

Vol 695 ◽

pp. 1743-1752 ◽

Cited By ~ 18

Author(s):

Fanqun Li ◽

Wenwen Liu ◽

Yanqing Lai ◽

Furong Qin ◽

Lei Zou ◽

...

Keyword(s):

Carbon Nanofibers ◽

Anatase Tio2 ◽

Lithium Storage ◽

Hollow Carbon ◽

Storage Properties ◽

Co Doped

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Processing-Mechanical Property Relationship of Hollow and Porous Carbon Fibers Fabricated by Coaxial Electrospinning

Volume 2: Materials; Joint MSEC-NAMRC-Manufacturing USA ◽

10.1115/msec2018-6598 ◽

2018 ◽

Author(s):

Yijun Chen ◽

Jizhe Cai ◽

James G. Boyd ◽

Mohammad Naraghi

Keyword(s):

Mechanical Property ◽

Carbon Fibers ◽

Mechanical Performance ◽

Fiber Surface ◽

High Strength ◽

Hollow Fibers ◽

Coaxial Electrospinning ◽

Solid Shell ◽

Porous Shell ◽

Hollow Carbon

High strength hollow carbon fibers with both porous and solid shell were fabricated by a combination of coaxial electrospinning and emulsion electrospinning. In the coaxial electrospinning, a Polyacrylonitrile (PAN)/ Poly(methyl methacrylate) (PMMA)/Dimethylformamide (DMF) emulsion was used to form the porous shell and a PAN/DMF solution was used to form the solid shell. Fiber surface and cross-section morphology was studied by scanning electron microscope (SEM). Mechanical property of the hollow fibers was characterized by single fiber tensile test using microelectromechanical system devices (MEMS). The effect of pores on mechanical performance of the hollow fibers was studied. Hollow carbon fibers with porous and solid shell both showed a brittle fracture behavior. The modulus and strength of the hollow carbon fibers with solid shell was ∼ 76.1 GPa and 2.04 GPa, respectively. For the hollow carbon fibers with porous shell, the porosity led to ∼ 35 % reduction in strength. The porous fibers with the mediocre strength measured here open new horizons for combining structural functionality with energy storage, in so-called structural batteries.

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