The Influence of Reaction Temperature on the Size of the Catalyst Nano-particle and the Carbon Nanotube Diameter Distributions

2008 ◽  
Author(s):  
Enkeleda Dervishi ◽  
Zhongrui Li ◽  
Fumiya Watanabe ◽  
Yang Xu ◽  
Viney Saini ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Reaction Temperature ◽  
Nano Particle ◽  
Diameter Distributions

The Effects of Reaction Temperature on the Morphology and the Quality of the Carbon Nanotube - Silica Microparticles

2016 ◽  
Vol 1133 ◽  
pp. 467-470
Author(s):  
Raja Nor Othman ◽  
Arthur N. Wilkinson
Keyword(s):  
Carbon Nanotube ◽  
Reaction Temperature ◽  
Vapour Deposition ◽  
Chemical Vapour ◽  
Growth Conditions ◽  
Growth Time ◽  
Hybrid Particles ◽  
Spherical Silica ◽  
Silica Microparticles

Carbon nanotube has been successfully grafted on the surface of spherical silica gel via floating-catalyst chemical vapour deposition method. The growth conditions were set to be 3 hours growth time and 5 wt. % of ferrocene catalyst (dissolved in toluene) injected into the furnace at a rate of 0.04 ml/min. It was found that the reaction temperature of 760°C yields the best quality hybrid particles. Decreasing and increasing the reaction temperature resulted in the formation of product that consists of thicker tubes, higher defects as analysed by Raman, as well as least carbon formation.

Temperature-Dependent Charge Transport in Polymer-Sorted Semiconducting Carbon Nanotube Networks with Different Diameter Distributions

2018 ◽  
Vol 122 (34) ◽  
pp. 19886-19896 ◽  
Author(s):  
Maximilian Brohmann ◽  
Marcel Rother ◽  
Stefan P. Schießl ◽  
Eduard Preis ◽  
Sybille Allard ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Charge Transport ◽  
Temperature Dependent ◽  
Carbon Nanotube Networks ◽  
Diameter Distributions

Study on Antistatic Modification of Carbon Nanotube on Silk Fabric

2013 ◽  
Vol 821-822 ◽  
pp. 51-54 ◽  
Author(s):  
Yu Chun Jiang ◽  
Li Man Chen ◽  
Xun Huang ◽  
Hua Ping Zeng ◽  
Jun Liang Zhang ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Carbon Nanotube ◽  
Reaction Time ◽  
Reaction Temperature ◽  
Ph Value ◽  
Adsorption Property ◽  
Silk Fabric ◽  
Antistatic Property ◽  
New Type ◽  
Silk Fabrics

Carbon nanotube is a new type of nanoscale materials, which has excellent adsorption property and electrical conductivity. In this paper, silk fabrics were antistatic modified by adsorption of carbon nanotube. The results indicate that the optimum modified conditions are summed up as follows: quality ratio of carbon nanotube and silk fabric is 1:5, pH value is 4, reaction temperature is 95°C and reaction time is 1.5 h. The antistatic property of silk fabric which modified by carbon nanotube is obviously improved.

Influence of the reaction temperature on the oxygen reduction reaction on nitrogen-doped carbon nanotube catalysts

2015 ◽  
Vol 249 ◽  
pp. 236-243 ◽  
Author(s):  
Lai Truong-Phuoc ◽  
Cuong Duong-Viet ◽  
Won-Hui Doh ◽  
Antoine Bonnefont ◽  
Izabela Janowska ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reaction Temperature ◽  
Reduction Reaction ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon

Asymmetric Carbon Nanotube Dimers for Novel Sensing Applications

2021 ◽  
Vol 35 (11) ◽  
pp. 1320-1321
Author(s):  
Sumitra Dey ◽  
Ahmed Hassan
Keyword(s):  
Carbon Nanotube ◽  
Field Distribution ◽  
Electromagnetic Coupling ◽  
Nano Particles ◽  
Computational Experiments ◽  
Nano Particle ◽  
Relative Location ◽  
Sensing Applications ◽  
The Difference ◽  
Asymmetric Carbon

In this work, we study the use of asymmetric carbon nanotube (CNT) dimers for the contactless detection of foreign nano-particles. Asymmetric CNT dimers create a unique field distribution, through the electromagnetic coupling, which in turn generates two distinct resonances representing the bonding and anti-bonding modes. The presence of a foreign nano-particle (NP) in the vicinity of the CNT dimer perturbs the dimer’s field distribution and causes the bonding and anti-bonding resonances to shift by unequal amounts depending on the NP location. By studying the difference in the shift of the bonding and the anti-bonding resonances, we show that the NP relative location can be reconstructed. The computational experiments performed in this work show how asymmetric CNT dimers can be used for novel sensing applications.

Effect of Nano-Particle Filler Type on the Piezoresistance of Polyethylene Composites

2011 ◽  
Author(s):  
Reza Rizvi ◽  
Brendan Cochrane ◽  
Elaine Biddiss ◽  
Hani Naguib
Keyword(s):  
Electrical Conductivity ◽  
Carbon Nanotube ◽  
Cyclic Loading ◽  
Stress Relaxation ◽  
Time Dependence ◽  
Percolation Threshold ◽  
Nano Particle ◽  
Melt Blending ◽  
Single Wall Carbon ◽  
Different Types

This study examines the piezoresistive behavior of polyethylene (PE) composites containing different types of nano-particle fillers. The fillers investigated are single-wall carbon nanotube (SWNT), multi-wall carbon nanotube (MWNT) and graphene nanoplatelets (GNP), which were dispersed in PE through melt blending in concentrations ranging between 0.5–10 wt%. The lowest percolation threshold and highest electrical conductivity was found for SWNT composites, followed by MWNT and GNP. The piezoresistance of the nano-particle-PE composites was investigated and a negative piezoresistance behavior was observed signifying a reducing mean inter-particulate distance in the composites. The highest sensitivity was exhibited by MWNT and SWNT composites at compositions closer to the percolation threshold. The time dependence of piezoresistivity was also investigated through stress relaxation and cyclic loading experiments.

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