• Title/Summary/Keyword: and materials

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Size control of Co-doped ZnO rods by changing the solvent

  • Zhao, Jing;Yan, Xiaoqin;Lei, Yang;Zhao, Yanguang;Huang, Yunhua;Zhang, Yue
    • Advances in materials Research
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    • v.1 no.1
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    • pp.75-81
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    • 2012

  • In this work, the Co-doped ZnO rods were prepared by the hydrothermal method. The size of these rods can be changed from micro-size to nano-size by using different solutions during the preparation. The results of transmission electron microscopy (TEM) and selected area electron diffraction (SAED) showed that the as-prepared nano-sized Co-doped rods have single-crystal structure. The polarized Raman experiments were presented on an individual micro-sized Co-doped ZnO rod in the $X(YY)\vec{X}$, $X(ZY)\vec{X}$ and $X(ZZ)\vec{X}$ configurations, the results of polarized Raman indicated that these rods are crystallized and their growth direction is parallel to c-axis.

  • https://doi.org/10.12989/amr.2012.1.1.075 인용 KSCI

Materials and Electrochemistry: Present and Future Battery

  • Paul, Subir
    • Journal of Electrochemical Science and Technology
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    • v.7 no.2
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    • pp.115-131
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    • 2016

  • Though battery chemistry and technology had been developed for over a hundred years back, increase in demand for storage energy, in the computer accessories, cell phones, automobile industries for future battery car and uninterrupted power supply, has made, the development of existing and new battery, as an emerging areas of research. With innovation of high energetic inexpensive Nano structure materials, a more energy efficient battery with lower cost can be competitive with the present primary and rechargeable batteries. Materials electrochemistry of electrode materials, their synthesis and testing have been explained in the present paper to find new high efficient battery materials. The paper discusses fundamental of electrochemistry in finding true cell potential, overvoltages, current, specific energy of various combinations of anode-cathode system. It also describes of finding the performance of new electrode materials by various experiments viz. i. Cyclic Voltammetry ii. Chronoamperometry iii. Potentiodynamic Polarization iv. Electrochemical Impedance Spectroscopy (EIS). Research works of different battery materials scientists are discussed for the development of existing battery materials and new nano materials for high energetic electrodes. Problems and prospects of a few promising future batteries are explained.

  • https://doi.org/10.5229/JECST.2016.7.2.115 인용 PDF KSCI KPUBS HTML