Simultaneous Detection of Dopamine and Uric Acid on Indium Tin Oxides Modified with Cost-effective Gas-phase Synthesized Single Walled Carbon Nanotubes

2017 ◽  
Vol 29 (8) ◽  
pp. 1925-1933 ◽  
Author(s):  
Md. Mohibul Islam Khan ◽  
Geun Woo Baek ◽  
Kyuwon Kim ◽  
Hyuck-In Kwon ◽  
Sung Hun Jin
Keyword(s):  
Carbon Nanotubes ◽  
Uric Acid ◽  
Gas Phase ◽  
Simultaneous Detection ◽  
Cost Effective ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Tin Oxides ◽  
Walled Carbon Nanotubes

Noncovalent functionalization of pristine CVD single-walled carbon nanotubes with 3d metal(II) phthalocyanines by adsorption from the gas phase

2018 ◽  
Vol 436 ◽  
pp. 1123-1133 ◽  
Author(s):  
Vladimir A. Basiuk ◽  
Laura J. Flores-Sánchez ◽  
Victor Meza-Laguna ◽  
José Ocotlán Flores-Flores ◽  
Lauro Bucio-Galindo ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Gas Phase ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Noncovalent Functionalization ◽  
Walled Carbon Nanotubes

Modelling gas-phase synthesis of single-walled carbon nanotubes on iron catalyst particles

Carbon ◽  
2008 ◽  
Vol 46 (3) ◽  
pp. 422-433 ◽  
Author(s):  
Matthew Celnik ◽  
Richard West ◽  
Neal Morgan ◽  
Markus Kraft ◽  
Anna Moisala ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Gas Phase ◽  
Iron Catalyst ◽  
Single Walled Carbon Nanotubes ◽  
Phase Synthesis ◽  
Single Walled Carbon ◽  
Gas Phase Synthesis ◽  
Walled Carbon Nanotubes

Optical properties of single-walled carbon nanotubes filled with CuCl by gas-phase technique

2014 ◽  
Vol 251 (12) ◽  
pp. 2466-2470 ◽  
Author(s):  
Pavel V. Fedotov ◽  
Alexander A. Tonkikh ◽  
Ekaterina A. Obraztsova ◽  
Albert G. Nasibulin ◽  
Esko I. Kauppinen ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Optical Properties ◽  
Gas Phase ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

scholarly journals Negatively-Doped Single-Walled Carbon Nanotubes Decorated with Carbon Dots for Highly Selective NO2 Detection

Nanomaterials ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2509
Author(s):  
Namsoo Lim ◽  
Jae-Sung Lee ◽  
Young Tae Byun
Keyword(s):  
Carbon Nanotubes ◽  
Gas Sensors ◽  
Cost Effective ◽  
Single Walled Carbon Nanotubes ◽  
X Ray Diffraction ◽  
Single Walled Carbon ◽  
Sensor Applications ◽  
Transmission Electron ◽  
P Type ◽  
Walled Carbon Nanotubes

In this study, we demonstrated a highly selective chemiresistive-type NO2 gas sensor using facilely prepared carbon dot (CD)-decorated single-walled carbon nanotubes (SWCNTs). The CD-decorated SWCNT suspension was characterized using transmission electron microscopy (TEM), X-ray diffraction (XRD), and UV-visible spectroscopy, and then spread onto an SiO2/Si substrate by a simple and cost-effective spray-printing method. Interestingly, the resistance of our sensor increased upon exposure to NO2 gas, which was contrary to findings previously reported for SWCNT-based NO2 gas sensors. This is because SWCNTs are strongly doped by the electron-rich CDs to change the polarity from p-type to n-type. In addition, the CDs to SWCNTs ratio in the active suspension was critical in determining the response values of gas sensors; here, the 2:1 device showed the highest value of 42.0% in a sensing test using 4.5 ppm NO2 gas. Furthermore, the sensor selectively responded to NO2 gas (response ~15%), and to other gases very faintly (NO, response ~1%) or not at all (CO, C6H6, and C7H8). We propose a reasonable mechanism of the CD-decorated SWCNT-based sensor for NO2 sensing, and expect that our results can be combined with those of other researches to improve various device performances, as well as for NO2 sensor applications.

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