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September 29, 2025LangmuirOpen Access

Highly Sensitive Ammonia Gas Sensor Based on MWCNTs Saturated Fe2O3 Nanograins

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Authors

MAM. S. AleksanyanASArtak SayuntsGSGevorg Shahkhatuni

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Overview

This research demonstrates a gas sensor that detects low ammonia levels in air, highlighting its potential for environmental and medical applications.

Key Points

  • The sensor shows a low detection limit of 3 ppm of ammonia, indicating excellent sensitivity.
  • Response and recovery times were noted at 40s and 25s, respectively, confirming rapid ammonia detection.
  • Characterization methods included SEM, TEM, and EDX, revealing the material's morphology and composition.
  • The use of Fe2O3/MWCNTs suggests enhanced performance for future ammonia alarm systems.

Cite This Study

Aleksanyan et al. (2025) studied this question.

synapsesocial.com/papers/68da58d1c1728099cfd10daahttps://doi.org/10.1021/acs.langmuir.5c02458
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