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      https://www.ias.ac.in/article/fulltext/boms/042/05/0221

    • Keywords

       

      Microwave irradiation; ZnO nanotetra-pods; structural properties; optical properties; corrosion studies.

    • Abstract

       

      Highly cross-linked zinc oxide (ZnO) with the nanorod morphology of tetra-pods was successfully prepared using a microwave irradiation (MWI) technique. In comparison with the available conventional techniques, the MWI tech-nique has the advantage of producing different morphological structures with high purity and in a shorter reaction time. These tetra-pods consist of a ZnO core in the zinc blende from which four ZnO arms emerge in the wurtzite structure. In this investigation, the effects of irradiation times and the growth mechanism of ZnO nanotetra-pods were discussed. The structural, morphological and optical properties of ZnO nanorods were investigated by field emission scanning electron microscopy, X-ray diffraction, an ultra violet visible spectrometry and energy-dispersive spectroscopy. The electrochemical corrosion behaviours of an AZ91-grade Mg alloy and a ZnO/PN nanotetra-pod-coated Mg alloy were investigated. The Tafel plot revealed that the corrosion of Mg drastically decreased on coating with a thin layer of ZnO nanotetra-pods and PN (Mg/PN/ZnO) compared to Mg in a KOH electrolyte.

    • Author Affiliations

       

      R BRINDHA1 S S RAJA AJITH1 M NANDHINI1 M SELVAM1 KITTITAT SUBANNAJUI2 KITTIKHUN KHOTMUNGKHUN2 K SAKTHIPANDI3

      1. Department of Nanoscience and Technology, K.S. Rangasamy College of Technology, KSR Kalvi Nagar, Tiruchengode 637215, India
      2. Material Science and Engineering Program, Multi-Disciplinary Unit, Faculty of Science, Mahidol University, Bangkok 73170, Thailand
      3. Department of Physics, Sethu Institute of Technology, Kariapatti 626115, India
    • Dates

       
  • Bulletin of Materials Science | News

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