Computational Investigation of Enhanced Properties in Functionalized Carbon Nanotube Doped Polyvinyl Alcohol Gel Electrolyte Systems

2021 ◽  
Author(s):  
Emine S. Karaman ◽  
Somenath Mitra ◽  
Joshua Young
Keyword(s):  
Carbon Nanotubes ◽  
Thermal Stability ◽  
Carbon Nanotube ◽  
Ionic Conductivity ◽  
Polyvinyl Alcohol ◽  
Mechanical Strength ◽  
Computational Investigation ◽  
Functionalized Carbon Nanotubes ◽  
Gel Electrolytes ◽  
Enhanced Properties

Recently, functionalized carbon nanotubes (fCNTs) were shown to increase the mechanical strength, thermal stability, and ionic conductivity in polyvinyl alcohol (PVA) based gel electrolytes (GE) for Zn ion batteries. However,...

Metal catalyst residues in carbon nanotubes decrease the thermal stability of carbon nanotube/silicone composites

Carbon ◽  
2011 ◽  
Vol 49 (13) ◽  
pp. 4138-4148 ◽  
Author(s):  
Zhuo Li ◽  
Wei Lin ◽  
Kyoung-Sik Moon ◽  
Stewart J. Wilkins ◽  
Yagang Yao ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Thermal Stability ◽  
Carbon Nanotube ◽  
Metal Catalyst ◽  
Thermal Stability Of

Poly(3-aminophenylboronic acid)-functionalized carbon nanotubes-based chemiresistive sensors for detection of sugars

The Analyst ◽  
2014 ◽  
Vol 139 (12) ◽  
pp. 3077-3082 ◽  
Author(s):  
Sushmee Badhulika ◽  
Chaker Tlili ◽  
Ashok Mulchandani
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Boronic Acid ◽  
Functionalized Carbon Nanotubes ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Enzymatic Sensor ◽  
Aminophenylboronic Acid ◽  
Poly Aniline

A poly(aniline boronic acid) (PABA)-functionalized single-walled carbon nanotube (SWNT) non-enzymatic sensor was developed for the detection of saccharides.

SINGLE WALL BAMBOO SHAPED CARBON NANOTUBE: A MOLECULAR DYNAMICS AND ELECTRONIC STUDY

2006 ◽  
Vol 17 (02) ◽  
pp. 187-196 ◽  
Author(s):  
OSMAN BARIŞ MALCIOĞLU ◽  
EMRE TAŞCI ◽  
ŞAKİR ERKOÇ
Keyword(s):  
Carbon Nanotubes ◽  
Molecular Dynamics ◽  
Thermal Stability ◽  
Carbon Nanotube ◽  
Electronic Properties ◽  
Coordination Number ◽  
Structural Model ◽  
Molecular Dynamics Method ◽  
Molecular Electronic ◽  
Dynamics Method

Thermal stability and molecular electronic properties of a single walled, bamboo shaped carbon nanotube has been investigated. Molecular dynamics method is applied to investigate thermal stability, and electronic properties are calculated at the Extended Huckel level. Although bamboo shaped carbon nanotubes observed in experimental literature are multi-walled, it is shown that the suggested structural model in this work, which is single-walled, is also both thermodynamically and energetically stable. Bamboo shape of the model investigated is due to periodical coronene-like spacers. The resultant structure is compartmented, having geometrical aberrations in the vicinity of spacers. There is no degradation in the average coordination number. The geometrical aberrations in the vicinity of spacers is due to curvature induced by the pentagons of the resultant geometry.

Designing dual-functionalized carbon nanotubes with high blood–brain-barrier permeability for precise orthotopic glioma therapy

2019 ◽  
Vol 48 (5) ◽  
pp. 1569-1573 ◽  
Author(s):  
Yuanyuan You ◽  
Ni Wang ◽  
Lizhen He ◽  
Changzheng Shi ◽  
Dong Zhang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Blood Brain Barrier ◽  
Cell Penetrating Peptide ◽  
Functionalized Carbon Nanotubes ◽  
Multi Walled Carbon Nanotube ◽  
Brain Barrier Permeability ◽  
Cell Penetrating ◽  
A Cell ◽  
Orthotopic Glioma

Herein we synthesize a cell penetrating peptide- and cancer-targeted molecule-functionalized multi-walled carbon nanotube for precise orthotopic glioma therapy.

scholarly journals Effect of Loading and Functionalization of Carbon Nanotube on the Performance of Blended Polysulfone/Polyethersulfone Membrane during Treatment of Wastewater Containing Phenol and Benzene

Membranes ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 54 ◽  
Author(s):  
Mabusha S. Rameetse ◽  
Oluseyi Aberefa ◽  
Michael O. Daramola
Keyword(s):  
Thermal Stability ◽  
Carbon Nanotube ◽  
Mechanical Strength ◽  
Petroleum Industry ◽  
Absorption Capacity ◽  
Synthetic Wastewater ◽  
Separation Performance ◽  
Blended Polymer ◽  
And Performance ◽  
Pes Membrane

In this study, a carbon nanotube (CNT)-infused blended polymer membrane was prepared and evaluated for phenol and benzene removal from petroleum industry wastewater. A 25:75 (by weight %) blended polysulfone/polyethersulfone (PSF/PES) membrane infused with CNTs was prepared and tested. The effect of functionalization of the CNTs on the quality and performance of the membrane was also investigated. The membranes were loaded with CNTs at different loadings: 0.5 wt. %, 1 wt. %, 1.5 wt. % pure CNTs (pCNTs) and 1 wt. % functionalized CNTs (fCNTs), to gain an insight into the effect of the amount of CNT on the quality and performance of the membranes. Physicochemical properties of the as-prepared membranes were obtained using scanning electron microscopy (SEM) for morphology, Raman spectroscopy for purity of the CNTs, Fourier transform infrared (FTIR) for surface chemistry, thermogravimetric analysis (TGA) for thermal stability, atomic force microscopy (AFM) for surface nature and nano-tensile analysis for the mechanical strength of the membranes. The performance of the membrane was tested with synthetic wastewater containing 20 ppm of phenol and 20 ppm of benzene using a dead-end filtration cell at a pressure ranging from 100 to 300 kPa. The results show that embedding CNTs in the blended polymer (PSF/PES) increased both the porosity and water absorption capacity of the membranes, thereby resulting in enhanced water flux up to 309 L/m2h for 1.5 wt. % pCNTs and 326 L/m2h for 1 wt. % functionalized CNT-loaded membrane. Infusing the polysulfone/polyethersulfone (PSF/PES) membrane with CNTs enhanced the thermal stability and mechanical strength. Results from AFM indicate enhanced hydrophilicity of the membranes, translating in the enhancement of anti-fouling properties of the membranes. However, the % rejection of membranes with CNTs decreased with an increase in pCNTs concentration and pressure, while it increased the membrane with fCNTs. The % rejection of benzene in the pCNTs membrane decreased with 13.5% and 7.55% in fCNT membrane while phenol decreased with 55.6% in pCNT membrane and 42.9% in the FCNT membrane. This can be attributed to poor CNT dispersion resulting in increased pore sizes observed when CNT concentration increases. Optimization of membrane synthesis might be required to enhance the separation performance of the membranes.

Eco-friendly polyvinyl alcohol/cellulose nanofiber–Li+ composite separator for high-performance lithium-ion batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (100) ◽  
pp. 97912-97920 ◽  
Author(s):  
Chuanting Liu ◽  
Ziqiang Shao ◽  
Jianquan Wang ◽  
Chengyi Lu ◽  
Zhenhua Wang
Keyword(s):  
Thermal Stability ◽  
Ionic Conductivity ◽  
Polyvinyl Alcohol ◽  
Lithium Ion Batteries ◽  
High Performance ◽  
Lithium Ion ◽  
Cellulose Nanofiber ◽  
Composite Separator

A PVA/CNF–Li composite separator presented excellent porosity, ionic conductivity, electrolyte wettability, thermal stability and remarkable cycling ability.

Preparation and characterization of polyvinyl alcohol/carbon nanotube (PVA/CNT) conductive nanofibers

2012 ◽  
Vol 32 (6-7) ◽  
pp. 407-413 ◽  
Author(s):  
Ozcan Koysuren
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Conductivity ◽  
Carbon Nanotube ◽  
Polyvinyl Alcohol ◽  
Specific Capacitance ◽  
Electrode Surface ◽  
Electrospinning Process ◽  
Morphology Analysis ◽  
Highly Porous

Abstract The aim of this study was to prepare polyvinyl alcohol/carbon nanotube (PVA/CNT) conductive nanofibers by the electrospinning process. Prior to composite preparation, carbon nanotubes are dispersed homogeneously in N-methyl-2-pyrrolidone (NMP) and mixed with a PVA solution. A series of PVA/CNT films and nanofibers with various CNT compositions are prepared. Electrical conductivity and specific capacitance of spin-coated PVA/CNT films and electrospun PVA/CNT fibers increase with an increase in CNT content. Electrospun PVA/CNT nanofibers with a larger electrode surface result in a higher specific capacitance when compared with spin-coated PVA/CNT films. According to the morphology analysis, homogeneous and highly porous PVA/CNT mats containing 50–300 nm diameter nanofibers are obtained by the electrospinning process.

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