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Sāngli, India

Bangale S.V.,Metal Oxide Research | Patil D.R.,Bulk and Nano Materials Research Laboratory | Bamane S.R.,Metal Oxide Research
Sensors and Transducers | Year: 2011

Semiconductive nanometer-size material ZnFe 2O 4 was synthesized by a solution combustion reaction of inorganic reagents of Zn(NO 3) 3. 6H 2O, Fe(NO 3)3.9H 2O and Urea as a fuel. The process was a convenient, environment friendly, inexpensive and efficient preparation method for the ZnFe 2O 4 nanomaterial. Effects of the calcining temperature on the phase constituents characterized by TG-DTA, X-ray diffraction (XRD) was used to confirm the material structure, The as-prepared samples were further characterized by scanning electron microscopy (SEM) equipped with energydispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM). To depict the crystallite microstructure. Conductance responses of the nanocrystalline ZnFe 2O 4 thick film were measured by exposing the film to reducing gases like Acetone, Ethanol, Ammonia (NH 3), Hydrogen (H 2), Hydrogen sulphide (H 2S), Chlorine (Cl 2) and Liquefied petroleum gas (LPG). It was found that the sensors exhibited various sensing responses to these gases at different operating temperature. Furthermore, the sensor exhibited a fast response and a good recovery. The results demonstrated that ZnFe 2O 4 can be used as a new type of gas-sensing material which has a high sensitivity and good selectivity to Chlorine (CL 2). © 2011 IFSA. Source


Bangale S.V.,Metal Oxide Research | Bamane S.R.,Metal Oxide Research
Sensors and Transducers | Year: 2012

Semiconductive nano-sized ZnFe 2O 4 material is synthesized by a solution combustion method using inorganic reagents as Zn(NO 3) 3. 6H 2O, Fe(NO 3) 3.6H 2O, and glycine as a fuel. This process is a convenient, environment friendly, inexpensive and efficient for the preparation of ZnFe 2O 4 nanomaterial. The synthesized material is characterized by Thermo gravimetric Differential analysis (TG/DTA), X-ray Diffraction studied (XRD), Energy dispersive X-ray microanalysis studies (EDX), Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) techniques. Conductance response of the nanocrystalline ZnFe 2O 4 thick film is measured by exposing the film to reducing gases like hydrogen sulphide (H 2S), ammonia (NH 3), acetone, carbon dioxide (CO 2), hydrogen (H 2), and ethanol. The sensor exhibited a fast response and a good recovery. The results demonstrated that ZnFe 2O 4 can be used as a gas-sensing material which has a high sensitivity and good selectivity to hydrogen sulphide (H 2S) at 1000 ppm. © 2012 IFSA. Source


Bangale S.V.,Metal Oxide Research | Bamane S.R.,Metal Oxide Research
Sensors and Transducers | Year: 2012

Semiconductive nanoparticles of MgFe 2O 4 were synthesized by a solution combustion technique. This process is a convenient, environment friendly, inexpensive and efficient for the preparation of MgFe 2O 4 nanomaterial. The synthesized material is characterized by Thermo gravimetric Differential analysis (TG/DTA), X-ray Diffraction studied (XRD), Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) techniques. Conductance response of the nanocrystalline MgFe 2O 4 thick film is measured by exposing the film to reducing gases like ethanol, acetone, sulphur dioxide (H 2S), carbon dioxide (CO 2), and liquefied petroleum gas (LPG). The sensor exhibited a fast response and a good recovery. The results demonstrated that MgFe 2O 4 can be used as a gas-sensing material which has a high sensitivity and good selectivity to ethanol gas at 30 ppm. © 2012 IFSA. Source


Bangale S.V.,Metal Oxide Research | Khetre S.M.,Metal Oxide Research | Patil D.R.,Bulk and Nano Materials Research Laboratory | Bamane S.R.,Metal Oxide Research
Sensors and Transducers | Year: 2011

Semiconductive nanometer-size material ZnCo2O4 was synthesized by a solution combustion reaction of inorganic reagents of Zn(NO 3)3. 6H 2O, Co(NO 3)3.6H 2O and glycine as a fuel. The process was a convenient, environment friendly, inexpensive and efficient preparation method for the ZnCo 2O 4 nanomaterial. The synthesized materials were characterized by TG/DTA, XRD, EDX, SEM, and TEM. Conductance responses of the nanocrystalline ZnCo 2O 4 thick film were measured by exposing the film to reducing gases like Acetone, Ethanol, Ammonia (NH 3), Hydrogen (H 2), Hydrogen sulphide (H 2S), Chlorine (Cl 2) and Liquefied petroleum gas (LPG). It was found that the sensors exhibited various sensing responses to these gases at different operating temperature. Furthermore, the sensor exhibited a fast response and a good recovery. The results demonstrated that ZnCo 2O 4 can be used as a new type of gas-sensing material which has a high sensitivity and good selectivity to Liquefied petroleum gas (LPG) at 100 ppm. © 2011 IFSA. Source


Bangale S.,Metal Oxide Research | Prakshale R.,Metal Oxide Research | Kambale D.,Shankarrao Mohite Mahavidyalaya | Chopade A.,Pratapsinh Mohite Patil Mahavidyalaya | And 2 more authors.
Sensors and Transducers | Year: 2013

Nano structured ZnMgO was synthesized by self combustion method using glycine as a fuel. The synthesized microstructure materials were investigated by TG-DTA, XRD, SEM, TEM, and E-DAX. Observed results shows the product, is the mixture of ZnMgO, its particle size is about 45-55 nm with loosely agglomerated shape. Electrical properties of the synthesized nanoparticles were studied by AC conductivity measurement. The gas sensing properties were studied towards reducing gases viz. ammonia, hydrogen, acetone, chlorine, liquefied petroleum gas (LPG), etc. and it was observed that the nano structured ZnMgO shows high response to hydrogen at 200 °C and no cross sensitivities to other reducing gases. These nanoparticles were good I-V characteristics with ohmic nature. The quick response (~10 s) and fast recovery (~ 20 s) are the main features of these sensors. The effects of nanostructure on the gas sensing performance were studied and discussed. © 2013 IFSA. Source

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