A post-oxidation strategy for the synthesis of graphene/carbon nanotube-supported polyaniline nanocomposites as advanced supercapacitor electrodes

RSC Advances ◽  
2015 ◽  
Vol 5 (31) ◽  
pp. 24599-24606 ◽  
Author(s):  
Dechao Lv ◽  
Jiali Shen ◽  
Gengchao Wang
Keyword(s):  
Carbon Nanotube ◽  
Interfacial Polymerization ◽  
Graphene Nanosheets ◽  
Multi Walled Carbon Nanotube ◽  
Sulfonated Graphene

A post-oxidation strategy was proposed to synthesize sulfonated graphene nanosheets/carboxylated multi-walled carbon nanotube-supported PANI (sGNS/cMWCNT@PANI) hierarchical nanocomposites by an interfacial polymerization as advanced supercapacitor electrodes.

Grafting of Polyaniline onto the Surface of Amino-Functionalized Multi-Walled Carbon Nanotube via Interfacial Polymerization

2009 ◽  
Vol 1240 ◽  
Author(s):  
In-yup Jeon ◽  
Jong-beom Baek
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotube ◽  
Interfacial Polymerization ◽  
Analytical Techniques ◽  
Cyclic Voltammogram ◽  
X Ray Diffraction ◽  
Cycle Times ◽  
Transmission Electron ◽  
Multi Walled Carbon Nanotube ◽  
Ft Ir

AbstractThe mixture of polyaniline (PANi) and PANi grafted multi-walled carbon nanotube (PANi-g-MWNT) was prepared by two step reaction sequences. MWNT was first functionalized with 4-aminobenzoic acid via “direct” Firedel-Crafts acylation in polyphosphoric acid (PPA)/phosphorous pentoxide (P2O5) medium to afford aminobenzoyl-functionalized MWNT (AF-MWNT). Then, aniline was polymerized via in-situ static interfacial polymerization in H2O/CH2Cl2 in the presence of AF-MWNT in organic phase to yield the mixture of PANi and PANi-g-MWNT. The mixture was characterized with a various analytical techniques such as Fourier transform infrared spectroscopy (FT-IR), wide angle x-ray diffraction (WAXD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), cyclic voltammogram (CV). Even after dedoping, the mixture displayed semimetallic conductivity (4.9 S/cm). The capacitance of the mixture was also greatly enhanced and its capacitance decay with respect to cycle times was significantly reduced.

scholarly journals Photoluminescent Properties of Hydroxyapatite and Hydroxyapatite/Multi-Walled Carbon Nanotube Composites

Crystals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 832
Author(s):  
Edna X. Figueroa-Rosales ◽  
Javier Martínez-Juárez ◽  
Esmeralda García-Díaz ◽  
Daniel Hernández-Cruz ◽  
Sergio A. Sabinas-Hernández ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Hexagonal Phase ◽  
Precipitation Method ◽  
X Ray Diffraction ◽  
X Ray ◽  
Multi Walled Carbon Nanotube ◽  
Nanotube Composites ◽  
Carbon Nanotube Composites ◽  
Co Precipitation ◽  
Functionalized Mwcnts

Hydroxyapatite (HAp) and hydroxyapatite/multi-walled carbon nanotube (MWCNT) composites were obtained by the co-precipitation method, followed by ultrasound-assisted and microwave radiation and thermal treatment at 250 °C. X-ray diffraction (XRD) confirmed the presence of a hexagonal phase in all the samples, while Fourier-transform infrared (FTIR) spectroscopy elucidated the interaction between HAp and MWCNTs. The photoluminescent technique revealed that HAp and the composite with non-functionalized MWCNTs present a blue luminescence, while the composite with functionalized MWCNTs, under UV-vis radiation shows an intense white emission. These findings allowed presentation of a proposal for the use of HAp and HAp with functionalized MWCNTs as potential materials for optoelectronic and medical applications.

Adsorption performance of multi-walled carbon nanotube-SiO2 adsorbent for toluene

2021 ◽  
Vol 49 (6) ◽  
pp. 861-872
Author(s):  
Wei LIU ◽  
Zhuang LI ◽  
Shao-peng ZHANG ◽  
Wei-wei JIAN ◽  
Dan-zhu MA
Keyword(s):  
Carbon Nanotube ◽  
Adsorption Performance ◽  
Multi Walled Carbon Nanotube
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