An ultra-sensitive ammonia sensor based on a quartz crystal microbalance using nanofibers overlaid with carboxylic group-functionalized MWCNTs
Ahmad Hasan As’ari, Rizky Aflaha, Laila Katriani, Ahmad Kusumaatmaja, Iman Santoso, Rike Yudianti, Kuwat Trıyana
Abstract
over a concentration range of 1.5-7.5 ppm, and a detection limit of 50 ppb. Additionally, the sensor exhibits a rapid response time of only 14 s, excellent selectivity against other gases, such as acetic acid, formaldehyde, methanol, ethanol, propanol, benzene, toluene, and xylene, and good stability in daily use. These characteristics make the sensor a promising tool for real-time ammonia detection in diverse applications.
Topics & Concepts
Quartz crystal microbalanceNanofiberQuartzAmmoniaCarboxylic acidMaterials scienceChemical engineeringCrystal (programming language)Polymer chemistryNanotechnologyChemistryOrganic chemistryComposite materialAdsorptionComputer scienceEngineeringProgramming languageGas Sensing Nanomaterials and SensorsAcoustic Wave Resonator TechnologiesAdvanced Chemical Sensor Technologies