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Preparation and characterization of nano-structured lead oxide from spent lead acid battery paste

机译：废铅酸电池浆料的纳米结构氧化铅的制备与表征

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摘要

As part of contribution for developing a green recycling process of spent lead acid battery, a nanos-tructural lead oxide was prepared under the present investigation in low temperature calcination of lead citrate powder. The lead citrate, the precursor for preparation of this lead oxide, was synthesized through leaching of spent lead acid battery paste in citric acid solution. Both lead citrate and oxide products were characterized by means of thermogravimetric-differential thermal analysis (TG-DTA), X-ray diffraction (XRD), and scanning electron microscope (SEM). The results showed that the lead citrate was sheet-shape crystal of Pb(C_6H_6O_7)H_2O. When the citrate was calcined in N_2 gas, 3-PbO in the orthorhombic phase was the main product containing small amount of Pb and C and it formed as spherical particles of 50-60nm in diameter. On combusting the citrate in air at 370 C (for 20min), a mixture of orthorhombic β-PbO, tetragonal α-PbO and Pb with the particle size of 100-200 nm was obtained, with β-PbO as the major product. The property of the nanostructural lead oxide was investigated by electrochemical technique, such as cyclic voltammetry (CV). The CV measurements presented the electrochemical redox potentials, with reversibility and cycle stability over 15 cycles.
机译：作为开发废铅酸电池绿色回收工艺的贡献的一部分，在本研究中，在柠檬酸铅粉的低温煅烧中制备了纳米结构的氧化铅。柠檬酸铅是制备这种氧化铅的前体，是通过在柠檬酸溶液中浸出废铅酸电池浆料而合成的。柠檬酸铅和氧化物产物均通过热重差热分析（​​TG-DTA），X射线衍射（XRD）和扫描电子显微镜（SEM）进行表征。结果表明，柠檬酸铅为Pb（C_6H_6O_7）H_2O的片状晶体。当柠檬酸盐在N_2气体中煅烧时，正交相中的3-PbO是含少量Pb和C的主要产物，形成直径为50-60nm的球形颗粒。在空气中于370°C燃烧柠檬酸盐（20分钟）后，获得了正交晶形β-PbO，四方α-PbO和Pb的混合物，粒径为100-200 nm，主要产物为β-PbO。通过电化学技术，例如循环伏安法（CV）研究了纳米结构氧化铅的性能。 CV测量显示了电化学氧化还原电势，在15个循环中具有可逆性和循环稳定性。

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  • 来源
    《Journal of Hazardous Materials》 |2012年第2012期|p.274-282|共9页
  • 作者

    Lei Li; Xinfeng Zhu; Danni Yang; Linxia Gao; Jianwen Liu; R. Vasant Kumar; Jiakuan Yang;

  • 作者单位

    School of Environmental Science and Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei, 430074, PR China;

    School of Environmental Science and Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei, 430074, PR China,Henan University of Urban Construction, Pingdingshan, Henan, 467000, PR China;

    School of Environmental Science and Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei, 430074, PR China;

    School of Environmental Science and Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei, 430074, PR China;

    School of Environmental Science and Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei, 430074, PR China;

    Department of Materials Science and Metallurgy, University of Cambridge. Cambridge, CB2 3QZ, UK;

    School of Environmental Science and Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei, 430074, PR 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);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    spent lead acid battery; nano-structured lead oxide; lead citrate; thermal decomposition; electrochemistry test;

    机译：废铅酸电池;纳米结构的氧化铅;柠檬酸铅热分解;电化学测试;

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