Impact of aluminum substitution on the structural and dielectric properties of Ni–Cu spinel ferrite nanoparticles synthesized via sol–gel route

2020 ◽  
Vol 52 (4) ◽  
Author(s):  
Kiran Shahzadi ◽  
Ali Dad Chandio ◽  
Ghulam Mustafa ◽  
Muhammad Khalid ◽  
Junaid Kareem Khan ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Spinel Ferrite ◽  
Sol Gel ◽  
Ferrite Nanoparticles ◽  
Aluminum Substitution

Aluminum Substitution in Ni-Co Based Spinel Ferrite Nanoparticles by Sol–Gel Auto-Combustion Method

2021 ◽  
Author(s):  
Muniba ◽  
Muhammad Khalid ◽  
Ali Dad Chandio ◽  
Muhammad Saeed Akhtar ◽  
Junaid Kareem Khan ◽  
...  
Keyword(s):  
Spinel Ferrite ◽  
Sol Gel ◽  
Combustion Method ◽  
Ferrite Nanoparticles ◽  
Auto Combustion ◽  
Aluminum Substitution

Cation distribution dependence of magnetic properties of sol–gel prepared MnFe2O4 spinel ferrite nanoparticles

2010 ◽  
Vol 322 (21) ◽  
pp. 3396-3400 ◽  
Author(s):  
Jianjun Li ◽  
Hongming Yuan ◽  
Guodong Li ◽  
Yanju Liu ◽  
Jinsong Leng
Keyword(s):  
Magnetic Properties ◽  
Cation Distribution ◽  
Spinel Ferrite ◽  
Sol Gel ◽  
Ferrite Nanoparticles

Consequence of pH variation on the dielectric properties of Cr-doped lithium ferrite nanoparticles synthesized by the sol–gel method

2015 ◽  
Vol 645 ◽  
pp. 171-177 ◽  
Author(s):  
Manish Srivastava ◽  
R.K. Mishra ◽  
Jay Singh ◽  
Neha Srivastava ◽  
Nam Hoon Kim ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Sol Gel ◽  
Ferrite Nanoparticles ◽  
Lithium Ferrite ◽  
Ph Variation ◽  
Gel Method ◽  
Sol Gel Method

scholarly journals Study of Zn-Cu Ferrite Nanoparticles for LPG Sensing

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Anuj Jain ◽  
Ravi Kant Baranwal ◽  
Ajaya Bharti ◽  
Z. Vakil ◽  
C. S. Prajapati
Keyword(s):  
Single Phase ◽  
Spinel Ferrite ◽  
Sol Gel ◽  
Ferrite Nanoparticles ◽  
Copper Ferrite ◽  
Inverse Spinel ◽  
Mixed Ferrite ◽  
Xrd Patterns ◽  
Sensing Characteristics ◽  
Lpg Sensing

Nanostructured zinc-copper mixed ferrite was synthesized using sol-gel method. XRD patterns of different compositions of zinc-copper ferrite,Zn(1-x)CuxFe2O4(x=0.0, 0.25, 0.50, 0.75), revealed single phase inverse spinel ferrite in all the samples synthesized. With increasing copper concentration, the crystallite size was found to be increased from 28 nm to 47 nm. The surface morphology of all the samples studied by the Scanning Electron Microscopy there exhibits porous structure of particles throughout the samples. The pellets of the samples are prepared for LPG sensing characteristics. The sensing is carried out at different operating temperatures (200, 225, and 250°C) with the variation of LPG concentrations (0.2, 0.4, and 0.6 vol%). The maximum sensitivity of 55.33% is observed at 250°C operating for the 0.6 vol% LPG.

scholarly journals Fabrication of H2S gas sensors using ZnxCu1-xFe2O4 nanoparticles

2020 ◽  
Vol 126 (7) ◽  
Author(s):  
Mohammad Abu Haija ◽  
Mariem Chamakh ◽  
Israa Othman ◽  
Fawzi Banat ◽  
Ahmad I. Ayesh
Keyword(s):  
Gas Sensors ◽  
Spinel Ferrite ◽  
Sol Gel ◽  
Ferrite Nanoparticles ◽  
X Ray Diffraction ◽  
X Ray ◽  
Auto Combustion ◽  
Multiple Cycles ◽  
Cubic Structure ◽  
Combustion Technique

Abstract Spinel ferrite nanoparticles can be easily retrieved and utilized for multiple cycles due to their magnetic properties. In this work, nanoparticles of a ZnxCu1-xFe2O4 composition were synthesized by employing a sol–gel auto-combustion technique. The morphology, composition, and crystal structure were examined using scanning electron microscopy, infrared spectroscopy, and X-ray diffraction. The produced nanoparticles are in the range of 30–70 nm and manifest spinel cubic structure. The nanoparticles were tested for their sensitivity to H2 and H2S gases, and the Cu-based spinel ferrite nanoparticles were found the most sensitive and selective to H2S gas. Their enhanced response to H2S gas was attributed to the production of metallic CuFeS2 that manifest higher electrical conductivity as compared with CuFe2O4. The fabricated sensors are functional at low temperatures, and consequently, they need low operational power. They are also simple to fabricate with appropriate cost.

Magnetic properties of Co 1−x Zn x Fe 2 O 4 spinel ferrite nanoparticles synthesized by starch-assisted sol–gel autocombustion method and its ball milling

2015 ◽  
Vol 378 ◽  
pp. 190-199 ◽  
Author(s):  
Raghvendra Singh Yadav ◽  
Jaromir Havlica ◽  
Miroslav Hnatko ◽  
Pavol Šajgalík ◽  
Cigáň Alexander ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Ball Milling ◽  
Spinel Ferrite ◽  
Sol Gel ◽  
Ferrite Nanoparticles
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