scholarly journals A facile method to align carbon nanotubes on polymeric membrane substrate

2013 ◽  
Vol 3 (1) ◽  
Author(s):  
Haiyang Zhao ◽  
Zhijun Zhou ◽  
Hang Dong ◽  
Lin Zhang ◽  
Huanlin Chen ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Polymeric Membrane ◽  
Align Carbon Nanotubes

Gas Permeation Properties of Multiwalled Carbon Nanotubes on Polyether Block Amide (Pebax-1657)/Polyethersulfone(PES) Blend Mixed Matrix Membrane for CO2/CH4 Separation

2020 ◽  
Vol 307 ◽  
pp. 258-263
Author(s):  
Nabilah Fazil ◽  
Hilmi Mukhtar ◽  
Dzeti Farhah Mohshim ◽  
Rizwan Nasir
Keyword(s):  
Carbon Nanotubes ◽  
Gas Permeability ◽  
Gas Permeation ◽  
Superior Performance ◽  
Polymeric Membrane ◽  
Mixed Matrix Membrane ◽  
Inversion Method ◽  
Separation Performance ◽  
Mixed Matrix ◽  
Multiwalled Carbon

Mixed matrix membrane (MMM), a developing research area, is a membrane formed by incorporating fillers in the polymeric membrane to enhance gas separation performance. In this study, MMMs comprised of blend rubbery block copolymers of polyether block amide (Pebax-1657) with a glassy polyethersulfone (PES) polymer and multi-walled carbon nanotubes (MWCNTs) were synthesized by dry phase inversion method and explored further by gas permeability test. Pebax-1657/PES/MWCNTs membrane resulted in an increased permeability as well as CO2/CH4 selectivity. The Pebax-1657/PES polymer blend MMM with 10wt% of MWCNTs has shown the most superior performance of CO2 permeability, CH4 permeability and CO2/CH4 selectivity in comparison with the pure Pebax-1657 resulted in 66.3% and 11.6% difference respectively.

Novel approach to align carbon nanotubes for planar type devices

2008 ◽  
Author(s):  
D. Pribat ◽  
M. Gowtham ◽  
C. Cojocaru ◽  
B. Marquardt ◽  
A. Q. L. Quang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Novel Approach ◽  
Align Carbon Nanotubes

A novel approach to align carbon nanotubes via water-assisted shear stretching

2018 ◽  
Vol 164 ◽  
pp. 1-7 ◽  
Author(s):  
Yingying Yu ◽  
Changhao Zhao ◽  
Qingwen Li ◽  
Jianying Li ◽  
Yuntian Zhu
Keyword(s):  
Carbon Nanotubes ◽  
Novel Approach ◽  
Align Carbon Nanotubes

Novel Method: Coral Like Structure of Align Carbon Nanotubes (A-CNTs) on Porous Silicon Template (PSiT) without Catalyst; Green Approach

2011 ◽  
Vol 364 ◽  
pp. 222-227 ◽  
Author(s):  
N.A. Asli ◽  
Abu Bakar Suriani ◽  
Muhammad Salleh Shamsudin ◽  
S.F.M. Yusop ◽  
Mohamad Rusop Mahmood ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Porous Silicon ◽  
Low Cost ◽  
Chemical Vapor ◽  
Electrochemical Anodization ◽  
Degree Of Crystallinity ◽  
Metal Catalyst ◽  
Novel Technique ◽  
Novel Method ◽  
Align Carbon Nanotubes

Align Carbon Nanotubes (A-CNTs) is very promising materials and offer attractive applications especially in opto-emission devices and nanoelectronic. Normally CNTs prepared by catalytic chemical vapor deposition using various types of template such as alumina, quartz, silicon and glass template. In this paper, Novel method was introduced to prepare A-CNTs which is combination between immersion and evaporation method. The align CNTs were successfully growth on Porous Silicon template (PSiT) without catalyst. Camphor oil is used as precursor and evaporation temperature is at 800 °C. The PSiT was prepared by photo-electrochemical anodization method. The surface morphology of PSiT layer and A-CNTs were studied using Field Emission Scanning Electron Microscope (FESEM).While Raman spectroscopy will be carried out to study the degree of crystallinity or graphitization of A-CNTs. The growth mechanism will be discussed in this paper. Stubby A-CNTs was successfully growth with 30 nm diameter and 250 nm length on PSiT without metal catalytic process. Meanwhile, this novel technique was found that PSiT is an ideal template for growing A-CNTs without metal catalyst assisted. This novel technique was capable to obtained carbon nanotubes without metal catalyst assisted and improves their purity of product with low cost.

scholarly journals Inactivation of Bacteria by Electric Current in the Presence of Carbon Nanotubes Embedded Within a Polymeric Membrane

2014 ◽  
Vol 175 (2) ◽  
pp. 666-676 ◽  
Author(s):  
Anna Zhu ◽  
Harris K. Liu ◽  
Feng Long ◽  
Erzheng Su ◽  
Alexander M. Klibanov
Keyword(s):  
Carbon Nanotubes ◽  
Electric Current ◽  
Polymeric Membrane ◽  
Inactivation Of Bacteria

scholarly journals Metal nanoparticle–carbon nanotubes hybrid catalysts immobilized in a polymeric membrane for the reduction of 4-nitrophenol

2019 ◽  
Vol 1 (4) ◽  
Author(s):  
Vicente Esquivel-Peña ◽  
Julio Bastos-Arrieta ◽  
María Muñoz ◽  
Lucia Mora-Tamez ◽  
Nadia M. Munguía-Acevedo ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Metal Nanoparticle ◽  
Polymeric Membrane ◽  
Hybrid Catalysts

The Structural Properties of Carbon Nanotubes Grown on Porous Silicon-Based Materials by Thermal Chemical Vapor Deposition Method

2013 ◽  
Vol 686 ◽  
pp. 28-32 ◽  
Author(s):  
Fadzilah Suhaimi Husairi ◽  
S.A.M. Zobir ◽  
Mohamad Rusop ◽  
Saifolah Abdullah
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Chemical Vapor Deposition ◽  
Porous Silicon ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Thermal Chemical Vapor Deposition ◽  
Micro Raman Spectroscopy ◽  
Porous Silicon Substrate ◽  
Align Carbon Nanotubes

In this paper, carbon nanotubes on porous silicon substrate were developed in order to get high quality nanotubes for various kind of application. CNTs were deposited on porous silicon nanostructures (PSiN) at 750 0C on porous silicon by using double-furnace thermal chemical vapor deposition technique. Align carbon nanotubes with diameters of 15 to 30 nm were successfully synthesized on a porous silicon substrate. In this system, carbon nanotubes were grown directly on the p-type porous silicon surface at 750 0C for a total time of 30 minutes. The samples were characterized using field emission scanning electron microscopy and micro-Raman spectroscopy. Align carbon nanotubes (ACNTs) bundle with uniform diameter (~20 nm) were found grown on porous silicon at certain area. Based on micro-Raman spectroscopy result, the peak of silicon at ~520 nm and peak of carbon nanotube (around 1 300 to 1 600 nm) was detected.

Liquid-Free Approach for Alignment of CNTs Bundles via Electrostatic Field

2013 ◽  
Vol 785-786 ◽  
pp. 463-466
Author(s):  
Xin Guang Xu ◽  
Zheng Gang Zhou
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotubes ◽  
Scanning Electron Microscopy ◽  
Electrostatic Field ◽  
Ambient Environment ◽  
Align Carbon Nanotubes ◽  
Film Substrate ◽  
Scanning Electron

A liquid-free approach was developed to align carbon nanotubes (CNTs) bundles composed of oriented CNTs. Electrostatic field was applied to the CNTs bundles at ambient environment. The proper dispersion and alignment of CNTs bundles was confirmed by scanning electron microscopy (SEM). Vertically alignment feature of CNTs bundles with one end embedded in film substrate could be observed. An analysis of the polarization-driven force between electrodes is considered to explain the CNTs bundles aligning process.

The Structural Properties of Carbon Nanotubes Grown on Porous Silicon-Based Materials by Thermal Chemical Vapor Deposition Method

2013 ◽  
Vol 667 ◽  
pp. 477-481
Author(s):  
F.S. Husairi ◽  
S.A.M. Zobir ◽  
Mohamad Rusop Mahmood ◽  
Saifollah Abdullah
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Chemical Vapor Deposition ◽  
Porous Silicon ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Thermal Chemical Vapor Deposition ◽  
Micro Raman Spectroscopy ◽  
Porous Silicon Substrate ◽  
Align Carbon Nanotubes

In this paper, carbon nanotubes on porous silicon substrate were developed in order to get high quality nanotubes for various kind of application. CNTs were deposited on porous silicon nanostructures (PSiN) at 750 0C on porous silicon by using double-furnace thermal chemical vapor deposition technique. Align carbon nanotubes with diameters of 15 to 30 nm were successfully synthesized on a porous silicon substrate. In this system, carbon nanotubes were grown directly on the p-type porous silicon surface at 750 0C for a total time of 30 minutes. The samples were characterized using field emission scanning electron microscopy and micro-Raman spectroscopy. Align carbon nanotubes (ACNTs) bundle with uniform diameter (~20 nm) were found grown on porous silicon at certain area. Based on micro-Raman spectroscopy result, the peak of silicon at ~520 nm and peak of carbon nanotube (around 1 300 to 1 600 nm) was detected.

Supramolecular electrospun nanofibers with high conductivity at ultra-low carbon nanotube content

2016 ◽  
Vol 4 (23) ◽  
pp. 5207-5213 ◽  
Author(s):  
Chih-Chia Cheng ◽  
Yeh-Sheng Wang ◽  
Jem-Kun Chen ◽  
Duu-Jong Lee
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Conductivity ◽  
Carbon Nanotube ◽  
Electrospun Nanofibers ◽  
High Conductivity ◽  
Supramolecular Polymers ◽  
Low Carbon ◽  
High Electrical Conductivity ◽  
Align Carbon Nanotubes

Supramolecular polymers can be used to manipulate and align carbon nanotubes (CNTs) in a nanofiber matrix, resulting in high electrical conductivity at ultra-low CNT content.

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