In-Plane Thermoelectric Generator of Carbon Nanotube Membrane Driven by Thermal Gas Flow

2012 ◽  
Vol 217-219 ◽  
pp. 226-229 ◽  
Author(s):  
Jiang Lei Lu ◽  
Guang Long Wang ◽  
Lian Feng Sun ◽  
Feng Qi Gao ◽  
Jian Hui Chen ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Output Voltage ◽  
Gas Flow ◽  
Thermoelectric Generator ◽  
Chemical Vapor ◽  
Chemical Vapor Deposition Method ◽  
Cold Side ◽  
Maximal Output ◽  
Novel Method ◽  
Catalyst Chemical Vapor Deposition

The in-plane thermoelectric generator (TEG) was ingeniously designed when the thermal gas flowed over the carbon nanotube (CNT) membrane at the modest speed of a few meters per second. It was composed of the glass substrate, aurum electrodes and CNT membrane synthesized by a floating catalyst chemical vapor deposition method. In the air under atmospheric pressure, the experimental results showed that the maximal output voltage could reach 1.7 mV. It related not only with the temperature difference between the hot-side and cold-side, but also the temperature gradient of the CNT membrane which was closely dependent on the velocity and temperature of the gas flow. The multi-physical power mechanism was applied to interpret the energy conversion, which included the coupling relation of the fluid dynamics, heat transmission and Seebeck effect. This novel method could effectively enhance the output voltage, extend the applied range of TEG and had a fine prospect.

Garment-Integrated Thermoelectric Generator Arrays for Wearable Body Heat Harvesting

2021 ◽  
Author(s):  
Linden K. Allison ◽  
Trisha Andrew
Keyword(s):  
Conducting Polymer ◽  
Room Temperature ◽  
Thermoelectric Generator ◽  
Chemical Vapor ◽  
Healthy Person ◽  
Thermoelectric Device ◽  
Chemical Vapor Deposition Method ◽  
Body Sensors ◽  
Fabric Surface ◽  
Body Heat

Abstract Wearable thermoelectric generator arrays have the potential to use waste body heat to power on-body sensors and create, for example, self-powered health monitoring systems. In this work, we demonstrate that a surface coating of a conducting polymer poly(3,4-ethylenedioxythiophene) (PEDOT-Cl), created on one face of a wool felt using a chemical vapor deposition method was able to manifest a Seebeck voltage when subjected to a temperature gradient. The wool felt devices can produce voltage outputs of up to 120 mV when measured on a human body. Herein, we present a strategy to create arrays of polymer-coated fabric thermopiles and to integrate such arrays into familiar garments that could become a part of a consumer’s daily wardrobe. Using wool felt as the substrate fabric onto which the conducting polymer coating is created allowed for a higher mass loading of the polymer on the fabric surface and shorter thermoelectric legs, as compared to our previous iteration. Six or eight of these PEDOT-Cl coated wool felt swatches were sewed onto a backing/support fabric and interconnected with silver threads to create a coupled array, which was then patched onto the collar of a commercial three-quarter zip jacket. The observed power output from a six-leg array while worn by a healthy person at room temperature (ΔT = 15 °C) was 2 µW, which is the highest value currently reported for a polymer thermoelectric device measured at room temperature.

scholarly journals High throughput production of single-wall carbon nanotube fibres independent of sulfur-source

Nanoscale ◽  
2019 ◽  
Vol 11 (39) ◽  
pp. 18483-18495 ◽  
Author(s):  
Adarsh Kaniyoor ◽  
John Bulmer ◽  
Thurid Gspann ◽  
Jenifer Mizen ◽  
James Ryley ◽  
...  
Keyword(s):  
Chemical Vapor Deposition ◽  
Carbon Nanotube ◽  
High Throughput ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Sulfur Source ◽  
Single Wall Carbon Nanotube ◽  
Single Wall Carbon ◽  
Catalyst Chemical Vapor Deposition

Rapidly jetting precursors in floating catalyst chemical vapor deposition produces monodisperse, metallic single-wall carbon nanotube fibres, irrespective of sulfur source.

A Welding Method for Carbon Nanotubes

2010 ◽  
Vol 160-162 ◽  
pp. 737-742 ◽  
Author(s):  
J.W. Zhang ◽  
Zhen Luo ◽  
Y.L. Li ◽  
J.D. Zhu ◽  
J. Hao
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Chemical Vapor ◽  
Optical Microscope ◽  
Weld Strength ◽  
Chemical Vapor Deposition Method ◽  
Welding Method ◽  
Close Proximity ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

A simple and reliable welding method was developed to weld carbon nanotubes with the power supply here. The carbon nanotubes were synthesized chemical vapor deposition method and Multi-walled carbon nanotubes was uesd here. Firstly, apply less than 5 V voltages between carbon nanotubes when they were in close proximity under direct view of optical microscope. Then, let carbon nanotube contact with each other and increase the external voltage to 7–8V until carbon nanotube was attached to the end of the other, the two carbon nanotube join into a carbon nanotube. Furthermore, some experiments were implemented to analyze the reliability, the images of the weld joint and the weld strength all indicted this method were reliable.

Preparation and characterization of SiC@CNT coaxial nanocables using CNTs as a template

CrystEngComm ◽  
2014 ◽  
Vol 16 (41) ◽  
pp. 9697-9703 ◽  
Author(s):  
Xiaoxia Qi ◽  
Guangmei Zhai ◽  
Jian Liang ◽  
Shufang Ma ◽  
Xuguang Liu ◽  
...  
Keyword(s):  
Chemical Vapor Deposition ◽  
Carbon Nanotube ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Chemical Vapor Deposition Method ◽  
Deposition Method ◽  
One Dimensional ◽  
Coaxial Nanocables

Novel one-dimensional SiC@carbon nanotube (CNT) coaxial nanocables have been successfully fabricated by using a carbothermal chemical vapor deposition method.

Controlled synthesis of quasi-one-dimensional boron nitride nanostructures

2007 ◽  
Vol 22 (10) ◽  
pp. 2809-2816 ◽  
Author(s):  
Dai-Ming Tang ◽  
Chang Liu ◽  
Hui-Ming Cheng
Keyword(s):  
Boron Nitride ◽  
Catalyst Concentration ◽  
Structural Characteristics ◽  
Chemical Vapor ◽  
Growth Conditions ◽  
Chemical Vapor Deposition Method ◽  
One Dimensional ◽  
Experimental Parameters ◽  
Bn Nanostructures ◽  
Catalyst Chemical Vapor Deposition

A floating catalyst chemical vapor deposition method was developed for the synthesis of quasi-one-dimensional (1D) boron nitride (BN) nanostructures. By carefully tuning the experimental parameters such as growth temperature, floating catalyst concentration, and boron precursor, high quality 1D BN nanostructures including nanotubes, nanobamboos, and nanowires were selectively produced. The microstructures of the obtained 1D BN nanomaterials were characterized, and it was found that the nanostructures are composed of hexagonal BN phase with (002) planes stacking in different manners. A growth mechanism of the BN nanostructures was proposed based on the analysis of their structural characteristics and growth conditions.

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