Jump to main content
Jump to site search


Highly efficient novel carbon monoxide gas sensor based on bismuth ferrite nanoparticles for environmental monitoring

Author affiliations

Abstract

Creation of novel functionality in materials is always fascinating for researchers/scientists. Bismuth ferrite (BFO), a well known multiferroics material with simultaneous magnetic and electric order, is promising for spintronics and memory devices. Herein, we were able to demonstrate for the first time very good carbon monoxide (CO) sensing capability of bismuth ferrite (BFO) nanoparticles prepared through a simple sol–gel technique. Morphological/structural characterization was performed using various standard sophisticated modern probes, which confirms the formation of single phase BFO nanoparticles. The sensing properties of BFO nanoparticles towards CO was tested for concentrations in the range of 5 ppm–30 ppm at different temperatures (between 270 °C to 450 °C). Very good response (Rg/Ra) of around 2.12 towards 30 ppm CO at an operating temperature of 350 °C was observed. The as-prepared sensors exhibited rapid response and recovery time of around 25 s and 13 s, respectively, for sensing 30 ppm CO. In addition, the sensors are selective, highly reproducible and remain quite stable for almost 150 days, which is required for device application. A plausible mechanism has been proposed to explain the CO sensing behaviour of the BFO nanoparticles. On the basis of the observed sensing properties we believe that a BFO nanoparticle-based sensor could be a suitable alternative to conventional oxide-based sensors having various difficulties.

Graphical abstract: Highly efficient novel carbon monoxide gas sensor based on bismuth ferrite nanoparticles for environmental monitoring

Back to tab navigation

Publication details

The article was received on 13 Mar 2018, accepted on 26 Mar 2018 and first published on 27 Mar 2018


Article type: Paper
DOI: 10.1039/C8NJ01237G
Citation: New J. Chem., 2018, Advance Article
  •   Request permissions

    Highly efficient novel carbon monoxide gas sensor based on bismuth ferrite nanoparticles for environmental monitoring

    S. Chakraborty and M. Pal, New J. Chem., 2018, Advance Article , DOI: 10.1039/C8NJ01237G

Search articles by author

Spotlight

Advertisements