Application of V2O5 screen printed sensor for acetone

Vanadium pentoxide has gathered significant attention among transition metal oxide semiconductors over the years due to its applications in various fields. It is a non-stoichiometric and promising material for gas sensing, optoelectronic, microelectronic and electrochemical devices. Vanadium pentoxide has excellent properties including good thermoelectric characteristics, strong chemical and thermal durability, wide optical band gap and multiple valences. These properties make it an excellent choice for the fabrication of innovative electronic devices and functional materials that can work in their intended conditions. Acetone is a hazardous and easily ignited gas that finds extensive applications as a solvent, chemical intermediary, medication and cosmetic. There are several volatile organic compounds (VOCs) inhaled by the people. Acetone is the most volatile of the VOCs and is frequently utilized in industries and laboratories as an organic solvent or chemical intermediary. The normal range of acetone for human breathing is 300ppb – 900ppb. The excess inhalation causes biliousness, indolence and drowsiness of the nervous system as well as irritation of the eyes and respiratory system. The majority of acetone detection methods rely on table top instruments like Mass Spectrometry with Gas Chromatography or Proton Transfer Reaction which are bulky and costly too. In view of this, the present work is focused to detect acetone via chemo-resistive sensing method. We have fabricated screen printed Vanadium pentoxide electrode to sense acetone. The sensitivity was found to be increased with gas concentration. This shows that vanadium pentoxide could be good sensor for acetone detection. The advantage of this sensor is its ease of operation and economy for large scale utilization.