The Experts below are selected from a list of 312 Experts worldwide ranked by ideXlab platform

Wenli Zhang - One of the best experts on this subject based on the ideXlab platform.

  • effect of polyvinyl alcohol nano carbon colloid on the electrochemical performance of negative plates of Lead Acid Battery
    Journal of Electroanalytical Chemistry, 2019
    Co-Authors: Can Wang, Wenli Zhang
    Abstract:

    Abstract Polyvinyl alcohol/nano-carbon colloid (PCC) was prepared through a simple physical mixture process. Both fully charge-discharge and insufficient charge tests were carried out to demonstrate the positive effects of PCC on the electrical storage capability of the negative electrode of Lead Acid Battery. Cyclic voltammetry, steady polarization and electrochemical impedance spectroscopy were used to characterize the influences of PCC on the electrochemical behaviors of negative electrode in the Lead Acid Battery. Experiment results demonstrate that PCC has positive effect on inhibiting PbSO4 growth and increasing the HER overpotential, thus the Lead Acid Battery with PCC shows the enhanced charge acceptance and stable discharge capacities under insufficient charge test. This paper opens a new way for enhancing the performance of Lead Acid Battery without changing the traditional structure and design of Lead Acid Battery.

  • Effect of polyvinyl alcohol/nano-carbon colloid on the electrochemical performance of negative plates of Lead Acid Battery
    Journal of Electroanalytical Chemistry, 2018
    Co-Authors: Can Wang, Wenli Zhang
    Abstract:

    Abstract Polyvinyl alcohol/nano-carbon colloid (PCC) was prepared through a simple physical mixture process. Both fully charge-discharge and insufficient charge tests were carried out to demonstrate the positive effects of PCC on the electrical storage capability of the negative electrode of Lead Acid Battery. Cyclic voltammetry, steady polarization and electrochemical impedance spectroscopy were used to characterize the influences of PCC on the electrochemical behaviors of negative electrode in the Lead Acid Battery. Experiment results demonstrate that PCC has positive effect on inhibiting PbSO4 growth and increasing the HER overpotential, thus the Lead Acid Battery with PCC shows the enhanced charge acceptance and stable discharge capacities under insufficient charge test. This paper opens a new way for enhancing the performance of Lead Acid Battery without changing the traditional structure and design of Lead Acid Battery.

Can Wang - One of the best experts on this subject based on the ideXlab platform.

  • effect of polyvinyl alcohol nano carbon colloid on the electrochemical performance of negative plates of Lead Acid Battery
    Journal of Electroanalytical Chemistry, 2019
    Co-Authors: Can Wang, Wenli Zhang
    Abstract:

    Abstract Polyvinyl alcohol/nano-carbon colloid (PCC) was prepared through a simple physical mixture process. Both fully charge-discharge and insufficient charge tests were carried out to demonstrate the positive effects of PCC on the electrical storage capability of the negative electrode of Lead Acid Battery. Cyclic voltammetry, steady polarization and electrochemical impedance spectroscopy were used to characterize the influences of PCC on the electrochemical behaviors of negative electrode in the Lead Acid Battery. Experiment results demonstrate that PCC has positive effect on inhibiting PbSO4 growth and increasing the HER overpotential, thus the Lead Acid Battery with PCC shows the enhanced charge acceptance and stable discharge capacities under insufficient charge test. This paper opens a new way for enhancing the performance of Lead Acid Battery without changing the traditional structure and design of Lead Acid Battery.

  • Effect of polyvinyl alcohol/nano-carbon colloid on the electrochemical performance of negative plates of Lead Acid Battery
    Journal of Electroanalytical Chemistry, 2018
    Co-Authors: Can Wang, Wenli Zhang
    Abstract:

    Abstract Polyvinyl alcohol/nano-carbon colloid (PCC) was prepared through a simple physical mixture process. Both fully charge-discharge and insufficient charge tests were carried out to demonstrate the positive effects of PCC on the electrical storage capability of the negative electrode of Lead Acid Battery. Cyclic voltammetry, steady polarization and electrochemical impedance spectroscopy were used to characterize the influences of PCC on the electrochemical behaviors of negative electrode in the Lead Acid Battery. Experiment results demonstrate that PCC has positive effect on inhibiting PbSO4 growth and increasing the HER overpotential, thus the Lead Acid Battery with PCC shows the enhanced charge acceptance and stable discharge capacities under insufficient charge test. This paper opens a new way for enhancing the performance of Lead Acid Battery without changing the traditional structure and design of Lead Acid Battery.

Jiakuan Yang - One of the best experts on this subject based on the ideXlab platform.

  • a green recycling process of the spent Lead paste from discarded Lead Acid Battery by a hydrometallurgical process
    Waste Management & Research, 2019
    Co-Authors: Wei Zhang, Liying Zhang, Jiakuan Yang
    Abstract:

    In this study, a green recycling process of discarded Lead–Acid Battery paste, which could avoid both the smelting and electro-winning route has been developed. Leaching reagents containing sodium ...

  • Leaching properties of Lead paste in spent Lead-Acid Battery with a hydrometallurgical process at room temperature
    Environmental Engineering and Management Journal, 2013
    Co-Authors: Jiakuan Yang, Lei Li, Ramachandran Vasant Kumar
    Abstract:

    In this study, as part of developing a green recycling process of spent Lead-Acid Battery that can avoid both smelting and electro-winning, leaching agent citric Acid and other additives (such as sodium citrate and hydrogen peroxide) in aqueous media were reacted with spent Lead-Acid Battery paste. PbO, PbO2 and PbSO4, which are the three main components in a spent Lead-Acid Battery paste, were leached to form Lead citrate precursor which was crystallized and then separated from the solution. Reaction between spent Lead-Acid Battery paste and citric Acid based reagents at the pH of 3~4, yielded Lead citrate, Pb(C6H6O7) H2O, which was characterized by XRD, SEM and FT-IR analysis. The optimal conditions for leaching spent Lead-Acid Battery paste at room temperature were found to be: 2.19 mol L-1 of C6H8O7 H2O, 1.29 mol L-1 of Na3C6H5O7 2H2O solution, 1/5 as the starting ratio of spent Lead-Acid Battery paste to water (S/L) and reaction time of 8 h. The results showed that up to 98 % of Lead from spent Lead-Acid Battery paste was converted to the Lead citrate under the optimal conditions.

  • preparation and characterization of nano structured Lead oxide from spent Lead Acid Battery paste
    Journal of Hazardous Materials, 2012
    Co-Authors: Xinfeng Zhu, Danni Yang, Linxia Gao, Jianwen Liu, Vasant R Kumar, Jiakuan Yang
    Abstract:

    Abstract As part of contribution for developing a green recycling process of spent Lead Acid Battery, a nanostructural 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 6 H 6 O 7 )·H 2 O. When the citrate was calcined in N 2 gas, β-PbO in the orthorhombic phase was the main product containing small amount of Pb and C and it formed as spherical particles of 50–60 nm in diameter. On combusting the citrate in air at 370 °C (for 20 min), 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.

Yi Zhang - One of the best experts on this subject based on the ideXlab platform.

  • spent Lead Acid Battery recycling in china a review and sustainable analyses on mass flow of Lead
    Waste Management, 2017
    Co-Authors: Xihua Zhang, Wenwen Zheng, Yi Zhang
    Abstract:

    Lead is classified to be one of the top heavy metal pollutants in China. The corresponding environmental issues especially during the management of spent Lead-Acid Battery have already caused significant public awareness and concern. This research gives a brief overview on the recycling situation based on an investigation of the Lead industry in China and also the development of technologies for spent Lead-Acid batteries. The main principles and research focuses of different technologies including pyrometallurgy, hydrometallurgy and greener technologies are summarized and compared. Subsequently, the circulability of Lead based on the entire life cycle analyses of Lead-Acid Battery is calculated. By considering different recycling schemes, the recycling situation of spent Lead-Acid Battery in China can be understood semi-quantitatively. According to this research, 30% of the primary Lead production can be shut down that the Lead production can still ensure consecutive life cycle operation of Lead-Acid Battery, if proper management of the spent Lead-Acid Battery is implemented according to current Lead industry situation in China. This research provides a methodology on the view of Lead circulability in the whole life cycle of a specific product and is aiming to contribute more quantitative guidelines for efficient organization of Lead industry in China.

S. Ambalavanan - One of the best experts on this subject based on the ideXlab platform.