Highly Sensitive Ammonia Gas Sensor Based on MWCNTs Saturated Fe2O3Nanograins
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F25%3A43932965" target="_blank" >RIV/60461373:22340/25:43932965 - isvavai.cz</a>
Výsledek na webu
<a href="https://pubs.acs.org/doi/10.1021/acs.langmuir.5c02458?ref=PDF" target="_blank" >https://pubs.acs.org/doi/10.1021/acs.langmuir.5c02458?ref=PDF</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.langmuir.5c02458" target="_blank" >10.1021/acs.langmuir.5c02458</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Highly Sensitive Ammonia Gas Sensor Based on MWCNTs Saturated Fe2O3Nanograins
Popis výsledku v původním jazyce
Ammonia has a wide range of applications in various branches of industry and technology; the detection of its low concentrations is a preventive method for ambient air quality pollution and a useful method for noninvasive diagnosis of kidney disease by monitoring in exhaled human breath. In this work, a high-performance ammonia sensor based on the Fe<inf>2</inf>O<inf>3</inf>/MWCNTs (multiwalled carbon nanotubes) material was produced by applying the e-beam deposition method. The morphology, composition, and chemical state of the Fe<inf>2</inf>O<inf>3</inf>/MWCNTs material were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX), Raman spectroscopy (Raman), Fourier transform infrared (FTIR) spectroscopy, and X-ray photoelectron spectroscopy (XPS). The gas-sensing behavior of the sensor to various concentrations of NH<inf>3</inf>was measured at 200 °C, representing excellent gas response and sophisticated performance parameters. The low detection limit of the Fe<inf>2</inf>O<inf>3</inf>/MWCNTs sensor was 3 ppm of NH<inf>3</inf>, corresponding to the response value of 2.7. The promising values of the response and recovery times (40 and 25 s) confirmed the high speed of ammonia detection. Thus, the suggested Fe<inf>2</inf>O<inf>3</inf>/MWCNTs material that is sensitive to low concentrations of NH<inf>3</inf>can be successfully used in a new generation of ammonia alarm systems. © 2025 The Authors. Published by American Chemical Society
Název v anglickém jazyce
Highly Sensitive Ammonia Gas Sensor Based on MWCNTs Saturated Fe2O3Nanograins
Popis výsledku anglicky
Ammonia has a wide range of applications in various branches of industry and technology; the detection of its low concentrations is a preventive method for ambient air quality pollution and a useful method for noninvasive diagnosis of kidney disease by monitoring in exhaled human breath. In this work, a high-performance ammonia sensor based on the Fe<inf>2</inf>O<inf>3</inf>/MWCNTs (multiwalled carbon nanotubes) material was produced by applying the e-beam deposition method. The morphology, composition, and chemical state of the Fe<inf>2</inf>O<inf>3</inf>/MWCNTs material were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX), Raman spectroscopy (Raman), Fourier transform infrared (FTIR) spectroscopy, and X-ray photoelectron spectroscopy (XPS). The gas-sensing behavior of the sensor to various concentrations of NH<inf>3</inf>was measured at 200 °C, representing excellent gas response and sophisticated performance parameters. The low detection limit of the Fe<inf>2</inf>O<inf>3</inf>/MWCNTs sensor was 3 ppm of NH<inf>3</inf>, corresponding to the response value of 2.7. The promising values of the response and recovery times (40 and 25 s) confirmed the high speed of ammonia detection. Thus, the suggested Fe<inf>2</inf>O<inf>3</inf>/MWCNTs material that is sensitive to low concentrations of NH<inf>3</inf>can be successfully used in a new generation of ammonia alarm systems. © 2025 The Authors. Published by American Chemical Society
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10403 - Physical chemistry
Návaznosti výsledku
Projekt
—
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2025
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
LANGMUIR
ISSN
0743-7463
e-ISSN
1520-5827
Svazek periodika
41
Číslo periodika v rámci svazku
39
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
14
Strana od-do
26614-26627
Kód UT WoS článku
001582734100001
EID výsledku v databázi Scopus
2-s2.0-105017975271