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首页> 外文期刊>RSC Advances >Cyclic voltammetric deposition of discrete nickel phosphide clusters with mesoporous nanoparticles on fluorine-doped tin oxide glass as a counter electrode for dye-sensitized solar cells
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Cyclic voltammetric deposition of discrete nickel phosphide clusters with mesoporous nanoparticles on fluorine-doped tin oxide glass as a counter electrode for dye-sensitized solar cells

机译：具有介孔纳米颗粒的离散镍磷化物簇的循环伏安沉积在氟掺杂的氧化锡玻璃上作为染料敏化太阳能电池的对电极

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摘要

A monolayer of widely spaced nickel phosphide clusters with mesoporous nanoparticles was directly formed on fluorine-doped tin oxide glass by cyclic voltammetric deposition as a counter electrode for a dye-sensitized solar cell (DSC). Cyclic voltammetry included the anodic dissolution of Ni-rich regions following the cathodic deposition, leading to the formation of discrete clusters with mesoporous nanoparticles. After annealing at 500 degrees C, the nickel phosphide could be characterized as Ni5P4 and its electrocatalytic behavior was evaluated by cyclic voltammetry and electrochemical impedance in an iodide/triiodide system. The mesoporous Ni5P4 catalyst prepared by the cyclic voltammetric method exhibits good electrocatalytic ability towards the iodide/triiodide redox couple as a result of its low charge-transfer resistance and diffusion impedance. The photoelectron conversion efficiency of a DSC employing the Ni5P4 counter electrode could reach 7.6%, which is higher than that of a DSC employing a Pt nanocluster counter electrode (7.2%). The successful utilization of ultra-low loading of the Ni5P4 catalyst for DSCs makes the application of such material more economically viable.
机译：通过环状伏安沉积在氟掺杂的氧化锡玻璃上作为用于染料敏化太阳能电池（DSC）的对电极，在氟掺杂锡氧化物玻璃上直接形成具有介孔纳米颗粒的单层磷化物簇。循环伏安法包括在阴极沉积后富含Ni的区域的阳极溶解，从而形成具有中孔纳米粒子的离散簇。在500℃下退火后，磷化镍可表征为Ni5P4，并且通过碘化碘/三碘化物系统中的循环伏安法和电化学阻抗评估其电催化行为。由于其低电荷 - 转移电阻和扩散阻抗，通过环状伏安法制备的叶片伏安法制备的介孔Ni5P4催化剂表现出良好的电催化能力朝向碘/三碘氧化还原耦合。使用Ni5P4对电极的DSC的光电子变换效率可达到7.6％，其高于采用Pt纳米光栅对电极（7.2％）的DSC的7.6％。为DSC的Ni5P4催化剂的超低负载的成功利用使得这种材料的应用更具经济上可行。

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  • 来源
    《RSC Advances》 |2015年第6期|共7页
  • 作者

    Wu Mao-Sung; Chung Che-Ju; Ceng Zhi-Zhen;

  • 作者单位

    Natl Kaohsiung Univ Appl Sci Dept Chem &

    Mat Engn Kaohsiung 807 Taiwan;

    Natl Kaohsiung Univ Appl Sci Dept Chem &

    Mat Engn Kaohsiung 807 Taiwan;

    Natl Kaohsiung Univ Appl Sci Dept Chem &

    Mat Engn Kaohsiung 807 Taiwan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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