Effect of HCl and H2SO4 Dilutant on Emeraldine Gas Sensor for Ammonia—Numerical Model
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F22%3A00360369" target="_blank" >RIV/68407700:21230/22:00360369 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1109/LSENS.2022.3210400" target="_blank" >https://doi.org/10.1109/LSENS.2022.3210400</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/LSENS.2022.3210400" target="_blank" >10.1109/LSENS.2022.3210400</a>
Alternative languages
Result language
angličtina
Original language name
Effect of HCl and H2SO4 Dilutant on Emeraldine Gas Sensor for Ammonia—Numerical Model
Original language description
Polyaniline changes its resistivity in the presence of various gas molecules, and therefore, it is currently studied for its deployment as a gas sensor, sensitivity to very small gas concentrations (lower than 1 ppm), selectivity to ammonia, nitrogen dioxide, or hydrogen, and long-term stability for thousands of voltage cycles. The preparation of this polymer is low cost using a very low pH environment where the polyaniline variety emeraldine base can be preceded to emeraldine salt, using hydrochloric acid, sulfuric acid, and others. After oxidative polymerization in the presence of an ammonium peroxidisulfate catalytic converter, the rest of the acid can be washed out. The effect of different acids on the final product emeraldine salt gas sensor conductivity was studied. One 32-mer-long polymer of emeraldine salt was simulated using QuantumATK as an electrical device, and its I-V characteristic was computed for pure polyaniline and polyaniline polluted by hydrochloric acid and sulfuric acid ions. The pollution concentration was 3 ppm. The results show that the resistance of polluted PANI increased a little for both acids. The results were compared with the recently published experimental data showing good accordance with them. The dilutants raise the resistance of the sensors, making them slightly less sensitive.
Czech name
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Czech description
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Classification
Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
<a href="/en/project/EF16_019%2F0000778" target="_blank" >EF16_019/0000778: Center for advanced applied science</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
IEEE Sensors Letters
ISSN
2475-1472
e-ISSN
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Volume of the periodical
2022
Issue of the periodical within the volume
10
Country of publishing house
US - UNITED STATES
Number of pages
4
Pages from-to
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UT code for WoS article
000866505500004
EID of the result in the Scopus database
2-s2.0-85139442159