scholarly journals Effect of diatomaceous earth on thermoelectric elements using multi-walled carbon nanotubes

2018 ◽  
Vol 3 (4) ◽  
pp. 5-8
Author(s):  
Keyword(s):  
Power Generation ◽  
Carbon Nanotube ◽  
Diatomaceous Earth ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Thermoelectric Devices ◽  
Multi Walled Carbon Nanotube ◽  
Multi Walled Carbon Nanotubes ◽  
Generation Capacity ◽  
Walled Carbon Nanotubes

Thermoelectric power generation is one of the expected new renewable energy in the future. However, the power generation capacity of thermoelectric devices is poor. In this research, we focused on utilizing diatomaceous earth to improve the performance of thermoelectric devices because it has low thermal conductivity. Our thermoelectric devices based on multi-walled carbon nanotube and diatomaceous earth have improved the open-circuit voltage about 30% compared with the conventional thermoelectric devices based on multi-walled carbon nanotube only.

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.

Self-assembly fabrication of a graphene/multi-walled carbon nanotube hybrid material for suppressing potential heat radiation and toxic effluent

RSC Advances ◽  
2015 ◽  
Vol 5 (125) ◽  
pp. 103365-103372 ◽  
Author(s):  
Lei Liu ◽  
Dong Wang ◽  
Yuan Hu
Keyword(s):  
Carbon Nanotubes ◽  
Aqueous Solution ◽  
Graphene Oxide ◽  
Carbon Nanotube ◽  
Hybrid Material ◽  
Self Assembly ◽  
Heat Radiation ◽  
Multi Walled Carbon Nanotube ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Negative graphene oxide was combined with positive chitosan-modified multi-walled carbon nanotubes in aqueous solution and then thermally reduced to fabricate a multi-walled carbon nanotube/graphene (MWCNT/G) hybrid material.

The “click-on-tube” approach for the production of efficient drug carriers based on oxidized multi-walled carbon nanotubes

2016 ◽  
Vol 4 (21) ◽  
pp. 3823-3831 ◽  
Author(s):  
Stefano Fedeli ◽  
Alberto Brandi ◽  
Lorenzo Venturini ◽  
Paola Chiarugi ◽  
Elisa Giannoni ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Drug Delivery ◽  
Carbon Nanotube ◽  
Drug Delivery System ◽  
Delivery System ◽  
Drug Carriers ◽  
Multi Walled Carbon Nanotube ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Straightforward Approach

An efficient drug delivery system through a straightforward approach to multi-walled carbon nanotube decoration.

scholarly journals Coordination matrix/signal amplifier strategy for simultaneous electrochemical determination of cadmium(ii), lead(ii), copper(ii), and mercury(ii) ions based on polyfurfural film/multi-walled carbon nanotube modified electrode

RSC Advances ◽  
2017 ◽  
Vol 7 (45) ◽  
pp. 28556-28563 ◽  
Author(s):  
Jianzhi Huang ◽  
Silan Bai ◽  
Guoqing Yue ◽  
Wenxue Cheng ◽  
Lishi Wang
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Modified Electrode ◽  
Electrochemical Determination ◽  
Multi Walled Carbon Nanotube ◽  
Signal Amplifier ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Coordination matrix/signal amplifier strategy for simultaneous electrochemical determination of cadmium(ii), lead(ii), copper(ii) and mercury(ii) ions based on polyfurfural film/multi-walled carbon nanotubes modified electrode.

Multi-walled carbon nanotubes composited with nanomagnetite for anodes in lithium ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (10) ◽  
pp. 7237-7244 ◽  
Author(s):  
Xiaoyu Li ◽  
Hongbo Gu ◽  
Jiurong Liu ◽  
Huige Wei ◽  
Song Qiu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Lithium Ion ◽  
Multi Walled Carbon Nanotube ◽  
Multi Walled Carbon Nanotubes ◽  
20 Nm ◽  
Walled Carbon Nanotubes ◽  
Annealing Method

The multi-walled carbon nanotube (MWNT) nanocomposites with homogenously anchored nanomagnetite of 10–20 nm prepared by a hydrothermal-annealing method exhibit excellent performances as anode materials for lithium ion batteries.

Electrochemical enantiorecognition of tryptophan enantiomers based on a multi-walled carbon nanotube–hydroxyethyl chitosan composite film

2017 ◽  
Vol 9 (35) ◽  
pp. 5149-5155 ◽  
Author(s):  
Zhenliang Li ◽  
Zunli Mo ◽  
Ruibin Guo ◽  
Shujuan Meng ◽  
Ruijuan Wang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Composite Film ◽  
Electrochemical Sensor ◽  
Tryptophan Enantiomers ◽  
Multi Walled Carbon Nanotube ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Chitosan Composite

A novel chiral electrochemical sensor based on hydroxyethyl chitosan (HECS) covalently binding with the carboxylic multi-walled carbon nanotubes (MWCNT–COOH) was fabricated for discrimination of tryptophan (Trp) enantiomers.

Polypyrrole with a functionalized multi-walled carbon nanotube hybrid nanocomposite: a new and efficient nitrite sensor

2018 ◽  
Vol 42 (5) ◽  
pp. 3748-3757 ◽  
Author(s):  
Abraham Daniel Arulraj ◽  
Ellairaja Sundaram ◽  
Vairathevar Sivasamy Vasantha ◽  
Bernaurdshaw Neppolian
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Sodium Dodecyl Sulfate ◽  
Conducting Polymers ◽  
Sodium Dodecyl ◽  
Hybrid Nanocomposite ◽  
Multi Walled Carbon Nanotube ◽  
Dodecyl Sulfate ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

This study mainly focuses on the electrochemical-assisted synthesis of conducting polymers such as polypyrrole (PPy) with sodium dodecyl sulfate (SDS) as a surfactant and supported with functionalized multi-walled carbon nanotubes (f-MWCNTs).

Ultrasonic enhanced synthesis of multi-walled carbon nanotube supported Pt–Co bimetallic nanoparticles as catalysts for the oxygen reduction reaction

RSC Advances ◽  
2015 ◽  
Vol 5 (41) ◽  
pp. 32685-32689 ◽  
Author(s):  
Shaofang Fu ◽  
Guohai Yang ◽  
Yazhou Zhou ◽  
Horng-Bin Pan ◽  
Chien M. Wai ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Bimetallic Nanoparticles ◽  
Reduction Reaction ◽  
Multi Walled Carbon Nanotube ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Ultrasonic enhanced synthesis of multi-walled carbon nanotubes supported Pt–Co bimetallic nanoparticles as catalysts for oxygen reduction reaction.

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