title: Study of Zn-Cu ferrite nanoparticles for LPG sensing.
abstract: Nanostructured zinc-copper mixed ferrite was synthesized using sol-gel method. XRD patterns of different compositions of zinc-copper ferrite, Zn(1-x)Cu(x)Fe2O4 (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.
authors.affiliation: Applied Mechanics Department, Motilal Nehru National Institute of Technology, Allahabad 211004, India.
authors.forename: Anuj
authors.initials: A
authors.lastname: Jain
authors.forename: Ravi Kant
authors.initials: RK
authors.lastname: Baranwal
authors.forename: Ajaya
authors.initials: A
authors.lastname: Bharti
authors.forename: Z
authors.initials: Z
authors.lastname: Vakil
authors.forename: C S
authors.initials: CS
authors.lastname: Prajapati
mesh_terms: D002073:Butanes / Q000032:analysis*; D003300:Copper / Q000737:chemistry*; D005290:Ferric Compounds / Q000737:chemistry*; D005740:Gases / Q000032:analysis*; D053768:Metal Nanoparticles / Q000737:chemistry*; D010578:Petroleum / Q000032:analysis*; D011407:Propane / Q000032:analysis*; D015032:Zinc / Q000737:chemistry*
chemical_list: D002073:Butanes; D005290:Ferric Compounds; D005740:Gases; D010578:Petroleum; C001215:ferrite; C046888:butane; D003300:Copper; D015032:Zinc; D011407:Propane