Au-modified α-Fe<sub>2</sub>O<sub>3</sub> nanoparticles for ultrasensitive isopropanol detection
Lexian Sang, Yun Wang, Shan Sun, Yi Tian, Yunying Xie, Fuchao Jia, Tong Zhou, Guangchao Yin, Fazhe Sun, Xiaomei Wang
Abstract
The Au-modified α-Fe 2 O 3 was prepared using facile microwave-assisted method. The sensor based on 7% mol Au-modified α-Fe 2 O 3 presented the highest sensitivity. Electron transfer from Au NPs to α-Fe 2 O 3 increases the number of oxygen-active species.
Topics & Concepts
ChemistryNanoparticleElectron transferAnalytical Chemistry (journal)Sensitivity (control systems)MicrowaveNuclear chemistryNanotechnologyPhotochemistryChromatographyQuantum mechanicsEngineeringElectronic engineeringMaterials sciencePhysicsGas Sensing Nanomaterials and SensorsAnalytical Chemistry and SensorsAdvanced Chemical Sensor Technologies