Titania Prepared by Ball Milling: Its Characterization and Application as Liquefied Petroleum Gas Sensor

TL;DR

This study develops a TiO2-based LPG sensor prepared by ball milling, characterizes its properties, and evaluates its sensitivity, response time, and reproducibility, demonstrating its potential for gas detection applications.

Contribution

The paper introduces a novel LPG sensor using ball-milled TiO2, with detailed characterization and performance evaluation, highlighting its high sensitivity and reproducibility.

Findings

Sensitivity of ~11 at 5 vol.% LPG

Response time ~100 seconds

Reproducibility within 91%

Abstract

Present paper reports the LPG sensing of TiO2 obtained through ball milling. The milled powder was characterized by XRD, TEM and UV-visible spectroscopy. Further the ball milled powder was compressed in to pellet using hydraulic press. This pellet was investigated with the exposure of LPG. Variations in resistance with exposure of LPG to the sensing pellet were recorded. The sensitivity of the sensor was ~ 11 for 5 vol.% of LPG. Response and recovery times of the sensor were ~ 100 and 250 sec. The sensor was quite sensitive to LPG and results were found reproducible within 91%.