Sub PPM detection of NO2 using strontium doped bismuth ferrite nanostructures

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F23%3A63567118" target="_blank" >RIV/70883521:28610/23:63567118 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2072-666X/14/3/644" target="_blank" >https://www.mdpi.com/2072-666X/14/3/644</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/mi14030644" target="_blank" >10.3390/mi14030644</a>

Result language

angličtina

Original language name

Sub PPM detection of NO2 using strontium doped bismuth ferrite nanostructures

Original language description

The present work investigates the NO2 sensing properties of acceptor-doped ferrite perovskite nanostructures. The Sr-doped BiFeO3 nanostructures were synthesized by a salt precursor-based modified pechini method and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS). The synthesized materials were drop coated to fabricate chemoresistive gas sensors, delivering a maximum sensitivity of 5.2 towards 2 ppm NO2 at 260 degrees C. The recorded values of response and recovery time are 95 s and 280 s, respectively. The sensor based on Bi0.8Sr0.2FeO3-delta (BSFO) that was operated was shown to have a LOD (limit of detection) as low as 200 ppb. The sensor proved to be promising for repeatability and selectivity measurements, indicating that the Sr doping Bismuth ferrite could be a potentially competitive material for sensing applications. A relevant gas-sensing mechanism is also proposed based on the surface adsorption and reaction behavior of the material.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

21001 - Nano-materials (production and properties)

Project

<a href="/en/project/EF16_028%2F0006243" target="_blank" >EF16_028/0006243: The Development of Capacity for Research and Development of TBU in Zlín</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Micromachines

ISSN

2072-666X

e-ISSN

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Volume of the periodical

14

Issue of the periodical within the volume

3

Country of publishing house

CH - SWITZERLAND

Number of pages

14

Pages from-to

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UT code for WoS article

000958562600001

EID of the result in the Scopus database

2-s2.0-85151997299