Chemical Modification of Carbon Nanofibers with Plasma of Acrylic Acid

Neira‐Velázquez, María Guadalupe; Hernández‐Hernández, Ernesto; Ramos-deValle, L. F.; Ávila‐Orta, Carlos A.; Perera-Mercado, Yibran; Solís-Rosales, Silvia G.; González‐Morones, Pablo; Ponce, Arturo; Ávalos-Borja, M.; Narro-Céspedes, Rosa Idalia; Bartolo‐Pérez, P.

doi:10.1002/ppap.201200122

Cited by 15 publications

(8 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A plasma polymerization reactor, reported by NeiraVelázquez et al [27], was used for the surface modification of the CNPs. The plasma treatment was carried out as follows: 2 g of CNPs was introduced in the glass reactor and the system was put under vacuum.…”

Section: Methodsmentioning

confidence: 99%

“…New chemical groups, such as C-O, grafted on the CNTs surface, and a reduction of the sp 2 -hybridization were observed [26]. Neira-Velázquez et al achieved the deposition of ultrathin polyacrylic acid film on the CNFs surface, and, according to the Raman results, it might be presumed that this nanofilm could be covalently bonded on the surface of nanofiber [27]. However, a slight decrease in the sp 2 hybridization was observed after the plasma treatment, which, on the other hand, indicated that polymerized gases such as acrylic acid tend to produce a coating without significantly affecting the surface structure of the substrate.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

Covarrubias-Gordillo¹,

Soriano‐Corral²,

Ávila‐Orta³

et al. 2017

Journal of Nanomaterials

Self Cite

View full text Add to dashboard Cite

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 sp 3 hybridization of the treated samples, which suggest that the polymerized propylene is grafted onto the CNPs.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Covarrubias-Gordillo¹,

Soriano‐Corral²,

Ávila‐Orta³

et al. 2017

Journal of Nanomaterials

Self Cite

View full text Add to dashboard Cite

show abstract

“…Our previous studies have shown that in the case of carbon nanotubes lowtemperature plasma treatment introduces changes to surface free energy and its components [19]. In the past years, several attempts were made to adapt lowtemperature plasma to the modification of filler surface [20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35]. However, there is general lack of work reporting an application of this technique to plasma grafting of coupling agents on the surface of MWCNT filler.…”

Section: Introductionmentioning

confidence: 99%

Low-temperature plasma modification of carbon nanofillers for improved performance of advanced rubber composites

et al. 2019

View full text Add to dashboard Cite

In modern polymer industry, there still is a room for new generations of fillers capable of enhancing the performance of composite materials. Currently, much effort is being put into a process of improving mechanical properties of elastomer materials. In this work, multiwalled carbon nanotubes (MWCNTs) and graphene nanoplatelets (GnPs) were modified with silane, titanate, or zirconate using plasma treatment, in order to apply them as fillers for styrene/butadiene rubber. Following its modification, filler surface was analyzed: Surface free energy (SFE) was measured with tensiometry, and micromorphology and chemical composition were studied with scanning electron microscopy-energy-dispersive spectroscopy (SEM-EDS), while elemental composition and bonding were assessed with X-ray photoelectron spectroscopy (XPS) and time-of-flight secondary ion mass spectrometry (ToF-SIMS). Low-temperature oxygen plasma activation of MWCNT fillers leads to a significant increase in the SFE polar component, with the same effect being much weaker for GnP fillers. Grafting silanes, zirconates, and titanates on activated filler surface results in a decrease in SFE polar component-surface oxygen-containing active groups react with silane/zirconate/titanate molecules. Fillers modified in this way exhibit different micromorphology and surface chemical composition what is revealed with the SEM-EDS, ToF-SIMS, and XPS techniques. As the ultimate step, either MWCNT or GnP rubber nanocomposites were manufactured using the modified fillers with their mechanical properties and cross-link density being studied. Filler modification resulted in substantial changes both in composite performance, and in its cross-linking density. In the case of modified filler containing composites, improved tensile strength and elongation at break were observed.

show abstract

“…The XPS C1 spectrum of CNF reveals that the sample is sufficiently reduced (Figure B). When a regular untreated CNF is examined, the C/O ratio can reach as high as 35 . For CNF that ratio is about 17; meaning that CNF has enough oxygen groups to be dispersed in water while maintaining its electrical conductivity.…”

Section: Resultsmentioning

confidence: 99%

All-carbon hybrids for high performance supercapacitors

et al. 2018

View full text Add to dashboard Cite

Summary A hybrid nanostructure with partially reduced graphene oxide (rGO) and carbon nanofibers (CNFs) was fabricated and used as supercapacitor electrodes. A straightforward, environmentally friendly, and low‐cost microwave‐assisted reduction process was developed for the synthesis of rGO/CNF hybrid structures. The fabricated supercapacitor devices showed a specific capacitance of 95.3 F g−1 and a superior long‐term cycling stability. A capacitance retention of more than 97% after 11 000 galvanostatic charge discharge cycles was obtained. These and other results reported in this paper indicate that high‐rate, all‐carbon, rGO/CNF hybrid nanostructures are highly promising supercapacitor electrode materials.

show abstract

Chemical Modification of Carbon Nanofibers with Plasma of Acrylic Acid

Cited by 15 publications

References 34 publications

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

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

Low-temperature plasma modification of carbon nanofillers for improved performance of advanced rubber composites

All-carbon hybrids for high performance supercapacitors

Contact Info

Product

Resources

About