Desorption Studies on Hydrogenated Single Walled Carbon Nanotubes Functionalized with Borane (BH3)

2013 ◽  
Vol 678 ◽  
pp. 185-188
Author(s):  
Duraisamy Silambarasan ◽  
Velappa Jayaraman Surya ◽  
Veerapandy Vasu ◽  
Kombiah Iyakutti
Keyword(s):  
Carbon Nanotubes ◽  
Single Walled Carbon Nanotubes ◽  
Hydrogen Fuel Cells ◽  
Single Walled Carbon ◽  
Temperature Range ◽  
Solution Cast ◽  
Entire Amount ◽  
Walled Carbon Nanotubes ◽  
Solution Cast Method ◽  
Hydrogen Storage Medium

In this work, desorption of hydrogen from hydrogenated single walled carbon nanotubes (SWCNTs) functionalized with borane is discussed. A hydrogen storage medium based on SWCNTs functionalized with borane is designed. The SWCNTs are functionalized with borane (BH3) using LiBH4 as the precursor by solution cast method. The functionalized samples are hydrogenated. A storage capacity of 1.5 wt.% is obtained just above room temperature (50°C). The hydrogenated and dehydrogenated samples are characterized using FTIR and Raman studies. The thermogravimetry/differential thermal analysis (TG/DTA) results reveal that the entire amount of (1.5 wt.%) stored hydrogen is released in the temperature range 100 - 150°C. This temperature range is suitable for hydrogen fuel cells used for vehicular applications.

Purity Evaluation of Single-Walled Carbon Nanotubes Using Thermogravimetric Analysis

2013 ◽  
Vol 51 (2) ◽  
pp. 137-144
Author(s):  
Naesung Lee ◽  
Jeung Choon Goak ◽  
Tae Yang Kim ◽  
Jongwan Jung ◽  
Young-Soo Seo ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Thermogravimetric Analysis ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Purity Evaluation ◽  
Walled Carbon Nanotubes

Hybrid Bioactive Hydrogels Containing Single-Walled Carbon Nanotubes Covalently Integrated via Strain-Promoted Azide-Alkyne Cycloaddition

2012 ◽  
Vol 2 (2) ◽  
pp. 200-209 ◽  
Author(s):  
Jurgen Bachl ◽  
Thimo Huber ◽  
Dennis Kuhbeck ◽  
Eva-Maria Schon ◽  
Gabriele Brunner ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

scholarly journals Thermoelectric Properties of Thin Films from Sorted Single-Walled Carbon Nanotubes

Materials ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 3808 ◽  
Author(s):  
Blazej Podlesny ◽  
Bogumila Kumanek ◽  
Angana Borah ◽  
Ryohei Yamaguchi ◽  
Tomohiro Shiraki ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Thermoelectric Properties ◽  
Large Scale ◽  
Single Walled Carbon Nanotubes ◽  
Parent Material ◽  
Free Standing ◽  
Two Phase ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes ◽  
Aqueous Two Phase Extraction

Single-walled carbon nanotubes (SWCNTs) remain one of the most promising materials of our times. One of the goals is to implement semiconducting and metallic SWCNTs in photonics and microelectronics, respectively. In this work, we demonstrated how such materials could be obtained from the parent material by using the aqueous two-phase extraction method (ATPE) at a large scale. We also developed a dedicated process on how to harvest the SWCNTs from the polymer matrices used to form the biphasic system. The technique is beneficial as it isolates SWCNTs with high purity while simultaneously maintaining their surface intact. To validate the utility of the metallic and semiconducting SWCNTs obtained this way, we transformed them into thin free-standing films and characterized their thermoelectric properties.

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