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Development of enhanced 3D flower like Gd doped NiO (GNO) based LPG gas sensor

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Title Development of enhanced 3D flower like Gd doped NiO (GNO) based LPG gas sensor
 
Creator Sengottaiyan
Pichumani, Moorthi
 
Subject Gadolinium
LPG gas sensor
NiO
Rare earth
 
Description 205-210
The Liquefied Petroleum Gas (LPG) sensing properties of pure NiO and Gd doped NiO nanoparticles (Gd - 1%, 3%, and
5%) have been prepared by polyol method and student. The prepared nanoparticles have been characterized by X-ray
diffraction (XRD), Field emission scanning electron microscopy (FESEM), Transmission electron microscopy (TEM),
Ultraviolet-visible spectroscopy, X-ray Photoelectron spectroscopy to study the structural, morphological, optical properties
and electronic state of the prepared nanoparticles. XRD reveals that NiO nanoparticles have average crystallite size of about
12 - 26 nm and 3D flower like morphology with 2 - 3 μm size was recorded and TEM images reveals the presence of quasi
spherical particles with nanosheets of thickness about 20 - 30 nm range. Optical absorption is found to be in UV region and
bandgap energy in the range 3 - 3.6 eV. XPS confirms the presence Ni2+, Ni3+ ions, Gd3+ ions and presence of two oxygen
species lattice oxygen and adsorbed oxygen. LPG sensing properties have been studied in detail for both pure NiO and GNO
nanoparticles (1%, 3%, 5% Gd doped NiO) and it demonstrate that doped Gd enhance the sensitivity response LPG gas at
operating temperature range 160°C to 260°C
 
Date 2023-03-17T10:03:00Z
2023-03-17T10:03:00Z
2023-03
 
Type Article
 
Identifier 0975-0991 (Online); 0971-457X (Print)
http://nopr.niscpr.res.in/handle/123456789/61558
https://doi.org/10.56042/ijct.v30i2.63383
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJCT Vol.30(2) [March 2023]