Structural, Morphological, And Gas Sensing Studies of Co-Doped Zno Prepared By Simple Chemical Route

• Author(s): Dr. Gajendra Prasad Gadkar
• Paper ID: 1703885
• Page: 168-171
• Published Date: 15-06-2024
• Published In: Iconic Research And Engineering Journals
• Publisher: IRE Journals
• e-ISSN: 2456-8880
• Volume/Issue: Volume 6 Issue 5 November-2022

Abstract

We report the synthesis of ZnO nanofibers doped with different amounts of Cobalt (Co) ions using the low-cost chemical technique, where the accumulation of doping material was initiated to affect the morphology of the composite material as well as the crystal structure of the annealed samples. As-prepared samples were annealed in air at 550 ?C for 2.5 h. Microstructural analysis of the X-ray diffraction (XRD) data shows that doping of Co ions in ZnO crystal structure has no sizeable influence because the atomic radius of Zn2+ and Co2+ are very close and they easily replace each other. Up to 5 % of Co doping could be accommodated in the single phase ZnO wurtzite structure as revealed by XRD data. Profile analysis of the XRD patterns reveals that the average crystallite size of CoO increases whereas micro strain decreases with an increase in dopant content. Morphology and microstructure of as-prepared and annealed nanostructures were characterized by Scanning electron microscopy (SEM) and a reduction in particle size was observed upon annealing as a result of the removal of organic components from the samples and conversion of ceramic precursors into ceramic nanomaterials. Their sensing ability is greatly affected by varying different parameters involved in the deposition process. The chemically synthesized Cobalt-doped ZnO nanostructures show that doping can enhance the sensitivity remarkably for LPG.

Citations

IRE Journals:
Dr. Gajendra Prasad Gadkar "Structural, Morphological, And Gas Sensing Studies of Co-Doped Zno Prepared By Simple Chemical Route" Iconic Research And Engineering Journals Volume 6 Issue 5 2022 Page 168-171

IEEE:
Dr. Gajendra Prasad Gadkar "Structural, Morphological, And Gas Sensing Studies of Co-Doped Zno Prepared By Simple Chemical Route" Iconic Research And Engineering Journals, 6(5)