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Carbon nanotubes (CNTs) are used in HCl sensors because their electrical properties change when exposed to gas molecules like HCl, allowing them to detect it through changes in electrical conductivity
. These sensors work by using CNTs as a conducting channel between two electrodes; the adsorption of HCl gas on the CNT surface causes a change in conductance, which is then measured as the sensor's response. CNTs are particularly suited for this role due to their high surface area, excellent electrical conductivity, and sensitivity to chemical doping, which can be caused by gas adsorption. How CNT-based HCl sensors work
- Device structure: A common design is a chemiresistive sensor, where a layer of CNTs is placed as a conducting channel between two electrodes.
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Scholarly articles for carbon nanotube in HCL sensor | |
… and Self-Welded Multiwalled Carbon Nanotubes - Tabib-Azar - Cited by 25 … for the electronic detection of hydrogen chloride - Bekyarova - Cited by 33 A carbon nanotube sensor array for sensitive gas … - Lu - Cited by 176 | |
Carbon nanocone as an electronic sensor for HCl gas
ScienceDirect.com
https://www.sciencedirect.com › article › abs › pii
ScienceDirect.com
https://www.sciencedirect.com › article › abs › pii
by E Vessally2016Cited by 77 — Potential application of a carbon nanocone (CNC) as a sensor for HCl molecules is studied. · Sensitivity of CNC does not significantly increases by conventional ...
Carbon Nanotube Chemical Sensors - PMC - PubMed Central
National Institutes of Health (.gov)
https://pmc.ncbi.nlm.nih.gov › articles › PMC6399066
National Institutes of Health (.gov)
https://pmc.ncbi.nlm.nih.gov › articles › PMC6399066
by V Schroeder2018Cited by 1169 — This review is a comprehensive description of the parameters that give rise to the sensing capabilities of CNT-based sensors and the application of CNT-based ...
Sensitive NH3OH and HCl Gas Sensors Using Self- ...
IEEE Xplore
https://ieeexplore.ieee.org › document
IEEE Xplore
https://ieeexplore.ieee.org › document
by M Tabib-Azar2005Cited by 25 — Self-aligned and self-welded multi-walled carbon nanotubes were grown for the first time using a metal-catalyzed chemical vapor deposition technique between ...
Gas Sensors Based on Coated and Doped Carbon ...
NASA Technology Transfer (.gov)
https://technology.nasa.gov › patent › top2-112
NASA Technology Transfer (.gov)
https://technology.nasa.gov › patent › top2-112
NASA scientists came up with an innovative method for gas detection by coating or doping the SWCNTs with suitable materials.
Chemically Engineered Single-Walled Carbon Nanotube ...
ResearchGate
https://www.researchgate.net › publication › 41850753...
ResearchGate
https://www.researchgate.net › publication › 41850753...
Aug 6, 2025 — The results showed that when HCl was present, the resistivity of CNT-COOC 5 H 4 N lms decreased, making them suitable for HCl chemical sensors.
Carbon Nanotubes Used in HCL Sensor
Hongwu International Group Ltd
https://www.hwnanomaterial.com › carbon-nanotubes-u...
Hongwu International Group Ltd
https://www.hwnanomaterial.com › carbon-nanotubes-u...
Therefore, carbon nanotubes can be used as raw materials for hydrogen chloride sensors, which can be converted into sensors with high sensitivity and ...
Hydrogen Sensing with Diameter- and Chirality-Sorted ...
ACS Publications
https://pubs.acs.org › doi
ACS Publications
https://pubs.acs.org › doi
by M Ganzhorn2011Cited by 77 — Nanoscale transistors based on semiconducting single-walled carbon nanotubes (s-SWNTs) are known to operate as Schottky barrier field-effect transistors (SB- ...
Carbon Nanotube-Based Chemiresistive Sensors
MDPI
https://www.mdpi.com › ...
MDPI
https://www.mdpi.com › ...
by R Tang2017Cited by 209 — This review mainly focuses on carbon nanotube (CNT)-based chemiresistive sensors. We first describe the properties of CNTs and the structure of CNT ...
A high-sensitivity hydrogen gas sensor based on carbon ...
Taylor & Francis Online
https://www.tandfonline.com › ... › Volume 7, Issue 1
Taylor & Francis Online
https://www.tandfonline.com › ... › Volume 7, Issue 1
by AM Al-Diabat2021Cited by 22 — In this study, an inexpensive simple method for the fabrication of efficient hydrogen (H 2 ) gas sensor based on carbon nanotubes (CNTs) was presented.
Actuator-driven, purge-free formaldehyde gas sensor ...
ChemRxiv
https://chemrxiv.org › engage › chemrxiv › article-details
ChemRxiv
https://chemrxiv.org › engage › chemrxiv › article-details
by S Ishihara2025Cited by 1 — Actuator-driven, purge-free formaldehyde gas sensor based on single-walled carbon nanotubes. ... The sensor is composed of an HCHO→HCl ...
