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首页> 外文期刊>Journal of Materials Research >High-performance supercapacitor electrodes based on NiMoO_4 nanorods
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High-performance supercapacitor electrodes based on NiMoO_4 nanorods

机译：基于NIMOO_4纳米棒的高性能超级电容器电极

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摘要

Novel NiMoO4-integrated electrode materials were successfully prepared by solvothermal method using Na2MoO4 center dot 2H(2)O and NiSO4 center dot 6H(2)O as main raw materials, water, and ethanol as solvents. The morphology, phase, and structure of the as-prepared materials were characterized by SEM, XRD, Raman, and FT-IR. The electrochemical properties of the materials in supercapacitors were investigated by cyclic voltammetry, constant current charge-discharge, and electrochemical impedance spectroscopy techniques. The effects of volume ratio of water to ethanol (W/E) in solvent on the properties of the product were studied. The results show that the pure phase monoclinic crystal NiMoO4 product can be obtained when the W/E is 2: 1. The diameter and length are 0.1-0.3 mu m and approximately 3 lm, respectively. As an active material for supercapacitor, the NiMoO4 nanorods material delivered a discharge specific capacitance of 672, 498, and 396 F/g at a current density of 4, 7, and 10 A/g, respectively. The discharge specific capacitance slightly decreased from 815 to 588 F/g with a retention of 72% after 1000 cycles at a current density of 1 A/g. With these superior capacitance properties, the novel NiMoO4 integrated electrode materials could be considered as promising material for supercapacitors.
机译：通过使用Na2Moo4中心点2H（2）O和NISO 4中心点6H（2）O作为主要原料，水和乙醇作为溶剂，通过溶剂热方法成功制备了新的NIMOO4-集成电极材料。通过SEM，XRD，拉曼和FT-IR的形态，阶段和结构的特征在于SEM，XRD，拉曼和FT-IR。通过循环伏安法，恒流电荷 - 放电和电化学阻抗光谱技术研究了超级电容器中材料的电化学性质。研究了对产物性质的溶剂中水与乙醇（w / e）的体积比的影响。结果表明，当w / e为2：1时，可以获得纯相单斜晶晶体nimoo4产物。直径和长度分别为0.1-0.3μm和约3升。作为超级电容器的活性材料，Nimoo4纳米棒材料以4,7和10A / g的电流密度分别输送了672,498和396 f / g的放电特定电容。在1000次循环的电流密度为1 a / g的情况下，放电特定电容从815〜588 f / g略微降低72％。利用这些卓越的电容性能，可以将新颖的NIMOO4集成电极材料视为超级电容器的有希望的材料。

著录项

  • 来源
    《Journal of Materials Research》 |2019年第14期|2435-2444|共10页
  • 作者

    Zhang Yong; Chang Cui-rong; Gao Hai-li; Wang Shi-wen; Yan Ji; Gao Ke-zheng; Jia Xiao-dong; Luo He-wei; Fang Hua; Zhang Ai-qin; Wang Li-zhen;

  • 作者单位

    Zhengzhou Univ Light Ind Dept Mat & Chem Engn Zhengzhou 450002 Henan Peoples R China|Zhengzhou Univ Light Ind Henan Prov Key Lab Surface & Interface Sci Zhengzhou 450002 Henan Peoples R China;

    Zhengzhou Univ Light Ind Dept Mat & Chem Engn Zhengzhou 450002 Henan Peoples R China;

    Zhengzhou Univ Light Ind Dept Mat & Chem Engn Zhengzhou 450002 Henan Peoples R China;

    Zhengzhou Univ Light Ind Dept Mat & Chem Engn Zhengzhou 450002 Henan Peoples R China;

    Zhengzhou Univ Light Ind Dept Mat & Chem Engn Zhengzhou 450002 Henan Peoples R China;

    Zhengzhou Univ Light Ind Dept Mat & Chem Engn Zhengzhou 450002 Henan Peoples R China;

    Zhengzhou Univ Light Ind Dept Mat & Chem Engn Zhengzhou 450002 Henan Peoples R China;

    Zhengzhou Univ Light Ind Dept Mat & Chem Engn Zhengzhou 450002 Henan Peoples R China;

    Zhengzhou Univ Light Ind Dept Mat & Chem Engn Zhengzhou 450002 Henan Peoples R China;

    Zhengzhou Univ Light Ind Dept Mat & Chem Engn Zhengzhou 450002 Henan Peoples R China;

    Zhengzhou Univ Light Ind Dept Mat & Chem Engn Zhengzhou 450002 Henan Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    solvothermal method; NiMoO4-integrated electrode materials; nickel foam; specific capacitance; electrochemical properties;

    机译：溶剂质方法;Nimoo4-集成电极材料;镍泡沫;特定电容;电化学性质;

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