Carbon Nanofibers Decorated with Poly(furfuryl alcohol)-Derived Carbon Nanoparticles and Tetraethylorthosilicate-Derived Silica Nanoparticles

Langmuir ◽  
2011 ◽  
Vol 27 (23) ◽  
pp. 14627-14631 ◽  
Author(s):  
Y. Zhang ◽  
A. L. Yarin
Keyword(s):  
Silica Nanoparticles ◽  
Carbon Nanofibers ◽  
Carbon Nanoparticles ◽  
Furfuryl Alcohol

Effects of Dipping Pretreatment on the Flame Deposition of Carbon Nanostructure on the Low Carbon Steel Substrate

2013 ◽  
Vol 734-737 ◽  
pp. 2269-2272
Author(s):  
Hong Mei Zhu ◽  
Shu Mei Lei ◽  
Tong Chun Kuang
Keyword(s):  
Nitric Acid ◽  
Carbon Steel ◽  
Acid Solution ◽  
Carbon Nanofibers ◽  
Carbon Nanoparticles ◽  
Steel Substrate ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Carbon Nanostructure ◽  
Flame Method

In this paper, a low carbon steel was used as the substrate to prepare the carbon nanostructural materials by the oxygen-acetylene flame method. The experimental results show that the composite products including nodular carbon nanoparticles and amorphous carbon were obtained on the substrate after a mechanical polishing pretreatment. Comparatively, the short tubular carbon nanofibers with the diameter of around 100 nm were deposited on the substrate pretreated by dipping in the concentrated nitric acid solution. The possible mechanism for the growth of such carbon nanofibers was discussed.

scholarly journals Carbon Nanofibers from Carbon Nanotubes by 1.2 keVAr+Sputtering at Room Temperature

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Shuang-Xi Xue ◽  
Qin-Tao Li ◽  
Xian-Rui Zhao ◽  
Qin-Yi Shi ◽  
Zhi-Gang Li ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotubes ◽  
Carbon Nanofibers ◽  
Carbon Nanoparticles ◽  
Room Temperature ◽  
Ion Irradiation ◽  
Transmission Electron ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Carbon Nanowires

Multi-walled carbon nanotubes (MWCNTs) were irradiated by 1.2 keV Ar ion beams for 15–60 min at room temperature with current density of 60 µA/cm2. The morphology and microstructure are investigated by scanning electron microscopy, transmission electron microscopy and Raman spectroscopy. The results show that carbon nanofibers are achieved after 60 min ion irradiation and the formation of carbon nanofibers proceeds through four periods, carbon nanotubes—amorphous carbon nanowires—carbon nanoparticles along the tube axis—conical protrusions on the nanoparticles surface—carbon nanofibers from the conical protrusions.

scholarly journals Preparation of Porous Carbon Nanofibers with Tailored Porosity for Electrochemical Capacitor Electrodes

Materials ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 729 ◽  
Author(s):  
Jisu Kim ◽  
Youn-Ji Heo ◽  
Jin-Yong Hong ◽  
Sung-Kon Kim
Keyword(s):  
Silica Nanoparticles ◽  
Carbon Nanofibers ◽  
Porous Carbon ◽  
High Performance ◽  
Weight Ratio ◽  
Electrochemical Capacitor ◽  
Electrochemical Performances ◽  
Porous Carbon Electrodes ◽  
Charge Discharge

Porous carbon electrodes that accumulate charges at the electrode/electrolyte interface have been extensively investigated for use as electrochemical capacitor (EC) electrodes because of their great attributes for driving high-performance energy storage. Here, we report porous carbon nanofibers (p-CNFs) for EC electrodes made by the formation of a composite of monodisperse silica nanoparticles and polyacrylonitrile (PAN), oxidation/carbonization of the composite, and then silica etching. The pore features are controlled by changing the weight ratio of PAN to silica nanoparticles. The electrochemical performances of p-CNF as an electrode are estimated by measuring cyclic voltammetry and galvanostatic charge/discharge. Particularly, the p-CNF electrode shows exceptional areal capacitance (13 mF cm−2 at a current of 0.5 mA cm−2), good rate-retention capability (~98% retention of low-current capacitance), and long-term cycle stability for at least 5000 charge/discharge cycles. Based on the results, we believe that this electrode has potential for use as high-performance EC electrodes.

Preparation of mesoporous carbon nanofibers from the electrospun poly(furfuryl alcohol)/poly(vinyl acetate)/silica composites

RSC Advances ◽  
2014 ◽  
Vol 4 (40) ◽  
pp. 21089 ◽  
Author(s):  
Jingyi Shen ◽  
Meijing Wang ◽  
Yi-nan Wu ◽  
Fengting Li
Keyword(s):  
Vinyl Acetate ◽  
Carbon Nanofibers ◽  
Furfuryl Alcohol ◽  
Mesoporous Carbon

Electrospun carbon nanofibers embedded with MOF-derived N-doped porous carbon and ZnO quantum dots for asymmetric flexible supercapacitors

2021 ◽  
Author(s):  
Zhen Li ◽  
Jingting Bu ◽  
Chenying Zhang ◽  
Lingli Cheng ◽  
Dengyu Pan ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Carbon Nanofibers ◽  
Porous Carbon ◽  
Carbon Nanoparticles ◽  
Flexible Supercapacitors ◽  
Zno Quantum Dots ◽  
Hierarchical Carbon

Hierarchical carbon nanofibers are embedded with MOF-derived N-doped porous carbon nanoparticles and decorated with ZnO quantum dots via a co-spinning method.

Encapsulation of Sn@carbon Nanoparticles in Bamboo-like Hollow Carbon Nanofibers as an Anode Material in Lithium-Based Batteries

2009 ◽  
Vol 48 (35) ◽  
pp. 6485-6489 ◽  
Author(s):  
Yan Yu ◽  
Lin Gu ◽  
Chunlei Wang ◽  
Abirami Dhanabalan ◽  
Peter A. van Aken ◽  
...  
Keyword(s):  
Anode Material ◽  
Carbon Nanofibers ◽  
Carbon Nanoparticles ◽  
Hollow Carbon

scholarly journals Surface Modification of Carbon Nanofibers and Graphene Platelets Mixtures by Plasma Polymerization of Propylene

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Carlos Andrés Covarrubias-Gordillo ◽  
Florentino Soriano-Corral ◽  
Carlos Alberto Ávila-Orta ◽  
Victor Javier Cruz-Delgado ◽  
María Guadalupe Neira-Velázquez ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Raman Spectroscopy ◽  
Carbon Nanofibers ◽  
Plasma Polymerization ◽  
Carbon Nanoparticles ◽  
Average Particle Size ◽  
Average Particle ◽  
Transmission Electron ◽  
Graphene Platelets

Carbon nanofibers (CNFs), graphene platelets (GPs), and their mixtures were treated by plasma polymerization of propylene. The carbon nanoparticles (CNPs) were previously sonicated in order to deagglomerate and increase the surface area. Untreated and plasma treated CNPs were analyzed by dynamic light scattering (DLS), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, and thermogravimetric analysis (TGA). DLS analysis showed a significant reduction of average particle size, due to the sonication pretreatment. Plasma polymerized propylene was deposited on the CNPs surface; the total amount of polymerized propylene was from 4.68 to 6.58 wt-%. Raman spectroscopy indicates an increase in the sp3 hybridization of the treated samples, which suggest that the polymerized propylene is grafted onto the CNPs.

scholarly journals Thermally Stable High-Contrast Iridescent Structural Colours from Silica Colloidal Crystal Doped with Monodisperse Spherical Black Carbon Particles as Maverick

2021 ◽  
Author(s):  
Kosuke Nakamae ◽  
Nanami Hano ◽  
Hirotaka Ihara ◽  
Makoto Takafuji
Keyword(s):  
Silica Nanoparticles ◽  
Black Carbon ◽  
Conjugated Polymer ◽  
Carbon Nanoparticles ◽  
Colloidal Crystal ◽  
Average Diameter ◽  
High Contrast ◽  
Polymer Particles ◽  
Carbon Particles ◽  
Silica Colloidal Crystal

Monodisperse black carbon nanoparticles (average diameter: 272 and 511 nm) are prepared by carbonization of monodisperse spherical π-conjugated polymer particles. Meanwhile, silica nanoparticles of different sizes are prepared by conventional...

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