Multi-walled carbon nanotube-based carbon/carbon composites with three-dimensional network structures

Nanoscale ◽  
2013 ◽  
Vol 5 (13) ◽  
pp. 6181 ◽  
Author(s):  
Yuguang Jin ◽  
Yingying Zhang ◽  
Qiang Zhang ◽  
Rufan Zhang ◽  
Peng Li ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Three Dimensional ◽  
Carbon Composites ◽  
Network Structures ◽  
Dimensional Network ◽  
Multi Walled Carbon Nanotube

scholarly journals In Vitro and In Vivo Evaluation of a Three-Dimensional Porous Multi-Walled Carbon Nanotube Scaffold for Bone Regeneration

Nanomaterials ◽  
2017 ◽  
Vol 7 (2) ◽  
pp. 46 ◽  
Author(s):  
Manabu Tanaka ◽  
Yoshinori Sato ◽  
Mei Zhang ◽  
Hisao Haniu ◽  
Masanori Okamoto ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Bone Regeneration ◽  
Three Dimensional ◽  
In Vivo Evaluation ◽  
Multi Walled Carbon Nanotube

Highly sensitive compression sensors using three-dimensional printed polydimethylsiloxane/carbon nanotube nanocomposites

2019 ◽  
Vol 30 (8) ◽  
pp. 1216-1224 ◽  
Author(s):  
Mohammad Charara ◽  
Mohammad Abshirini ◽  
Mrinal C Saha ◽  
M Cengiz Altan ◽  
Yingtao Liu
Keyword(s):  
Carbon Nanotubes ◽  
Electron Microscope ◽  
Carbon Nanotube ◽  
Scanning Electron Microscope ◽  
Three Dimensional ◽  
Multi Walled Carbon Nanotube ◽  
Highly Sensitive ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Scanning Electron

This article presents three-dimensional printed and highly sensitive polydimethylsiloxane/multi-walled carbon nanotube sensors for compressive strain and pressure measurements. An electrically conductive polydimethylsiloxane/multi-walled carbon nanotube nanocomposite is developed to three-dimensional print compression sensors in a freestanding and layer-by-layer manner. The dispersion of multi-walled carbon nanotubes in polydimethylsiloxane allows the uncured nanocomposite to stand freely without any support throughout the printing process. The cross section of the compression sensors is examined under scanning electron microscope to identify the microstructure of nanocomposites, revealing good dispersion of multi-walled carbon nanotubes within the polydimethylsiloxane matrix. The sensor’s sensitivity was characterized under cyclic compression loading at various max strains, showing an especially high sensitivity at lower strains. The sensing capability of the three-dimensional printed nanocomposites shows minimum variation at various applied strain rates, indicating its versatile potential in a wide range of applications. Cyclic tests under compressive loading for over 8 h demonstrate that the long-term sensing performance is consistent. Finally, in situ micromechanical compressive tests under scanning electron microscope validated the sensor’s piezoresistive mechanism, showing the rearrangement, reorientation, and bending of the multi-walled carbon nanotubes under compressive loads, were the main reasons that lead to the piezoresistive sensing capabilities in the three-dimensional printed nanocomposites.

Degradation of mefenamic acid using magnetic multi-walled carbon nanotube as a novel particle electrode in a three-dimensional electro-Fenton process

2020 ◽  
Vol 185 ◽  
pp. 152-167
Author(s):  
Mohammad Reza Zare ◽  
Nezamaddin Mengelizadeh ◽  
Hamidreza Pourzamani ◽  
Yaghoub Hajizadeh ◽  
Heidar Mohammadi ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Mefenamic Acid ◽  
Three Dimensional ◽  
Fenton Process ◽  
Multi Walled Carbon Nanotube

Preparation and Electroactivity of Pt Catalysts on Unzipped Multi-Walled Carbon Nanotube and Graphene Oxide

2020 ◽  
Vol 20 (8) ◽  
pp. 4998-5001
Author(s):  
JinWon Lee ◽  
Sungwook Chung ◽  
Seok Kim
Keyword(s):  
Graphene Oxide ◽  
Carbon Nanotube ◽  
3D Structure ◽  
Carbon Composite ◽  
Carbon Composites ◽  
High Catalytic Activity ◽  
Carbon Supports ◽  
Multi Walled Carbon Nanotube ◽  
Ft Ir ◽  
Enhanced Surface

We synthesize the Pt-carbon composite which is composed of unzipped multi-walled carbon nanotube (UMWCNT) and graphene oxide (GO). Graphite and multi-walled carbon nanotube (MWCNT) are oxidized by same method that modified Hummer’s method for making GO and UMWCNT. 3D structure could be prepared by polyol process which contains simultaneously reduction GO and UMWCNT. The electrochemical and morphological property of Pt-carbon composites was investigated by Fourier Transform Infrared spectroscopy (FT-IR), Field Emission Scanning Electron Microscopy (FE-SEM), and Cyclic Voltammetry (CV). These results show that Pt-rGO/UMWCNT (8:2) hybrids exhibited high catalytic activity due to the enhanced surface area of carbon supports.

scholarly journals Electroactive graphene-multi-walled carbon nanotube hybrid supported impedimetric immunosensor for the detection of human cardiac troponin-I

RSC Advances ◽  
2015 ◽  
Vol 5 (92) ◽  
pp. 74994-75003 ◽  
Author(s):  
Shobhita Singal ◽  
Avanish K. Srivastava ◽  
Sanjay Dhakate ◽  
Ashok M. Biradar ◽  
Rajesh Rajesh
Keyword(s):  
Carbon Nanotube ◽  
Glassy Carbon ◽  
Cardiac Troponin ◽  
Troponin I ◽  
Electrochemical Impedance ◽  
Three Dimensional ◽  
Carbon Electrode ◽  
Multi Walled Carbon Nanotube ◽  
Impedimetric Immunosensor ◽  
Impedance Immunosensor

We report a sensitive and stable electrochemical impedance immunosensor prepared with electroactive three-dimensional graphene-multi-walled carbon nanotube hybrid deposited on a glassy carbon electrode.

scholarly journals A Cleanable Self-Assembled Nano-SiO2/(PTFE/PEI)n/PPS Composite Filter Medium for High-Efficiency Fine Particulate Filtration

Materials ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 7853
Author(s):  
Yan Luo ◽  
Zhongyun Shen ◽  
Zhihao Ma ◽  
Hongfeng Chen ◽  
Xiaodong Wang ◽  
...  
Keyword(s):  
Composite Material ◽  
Three Dimensional ◽  
Filter Material ◽  
Filtration Efficiency ◽  
Filter Medium ◽  
Network Structures ◽  
Fine Particulate ◽  
Dimensional Network ◽  
Composite Filter ◽  
Particulate Filtration

A silicon dioxide/polytetrafluoroethylene/polyethyleneimine/polyphenylene sulfide (SiO2/PTFE/PEI/PPS) composite filter medium with three-dimensional network structures was fabricated by using PPS nonwoven as the substrate which was widely employed as a cleanable filter medium. The PTFE/PEI bilayers were firstly coated on the surfaces of the PPS fibers through the layer-by-layer self-assembly technique ten times, followed by the deposition of SiO2 nanoparticles, yielding the SiO2/(PTFE/PEI)10/PPS composite material. The contents of the PTFE component were easily controlled by adjusting the number of self-assembled PTFE/PEI bilayers. As compared with the pure PPS nonwoven, the obtained SiO2/(PTFE/PEI)10/PPS composite material exhibits better mechanical properties and enhanced wear, oxidation and heat resistance. When employed as a filter material, the SiO2/(PTFE/PEI)10/PPS composite filter medium exhibited excellent filtration performance for fine particulate. The PM2.5 (particulate matter less than 2.5 μm) filtration efficiency reached up to 99.55%. The superior filtration efficiency possessed by the SiO2/(PTFE/PEI)10/PPS composite filter medium was due to the uniformly modified PTFE layers, which played a dual role in fine particulate filtration. On the one hand, the PTFE layers not only increase the specific surface area and pore volume of the composite filter material but also narrow the spaces between the fibers, which were conducive to forming the dust cake quickly, resulting in intercepting the fine particles more efficiently than the pure PPS filter medium. On the other hand, the PTFE layers have low surface energy, which is in favor of the detachment of dust cake during pulse-jet cleaning, showing superior reusability. Thanks to the three-dimensional network structures of the SiO2/(PTFE/PEI)10/PPS composite filter medium, the pressure drop during filtration was low.

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