Mo2C-based binary and ternary nanocomposites as high-efficiency counter electrodes for dye-sensitized solar cells

Mo2C-based binary and ternary nanocomposites as high-efficiency counter electrodes for dye-sensitized solar cells
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Mo2C基二元和三元纳米复合材料作为染料敏化太阳能电池的高效对电极

DOI:
10.1016/j.ceramint.2019.05.068
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发表时间:
2019-08
影响因子:
5.2
通讯作者:
Zhou Xiao
Zhou Xiao
中科院分区:
材料科学1区
文献类型:
--
作者:
Yun Sining;Hou Yuzhi;Wang Chen;Zhang Yangliang;Zhou Xiao

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通过软模板合成,将Mo2C和Bi/Mo2C结合到介孔碳(MC)中,设计并制备了钼基二元/三元纳米复合材料。通过使用各种分析和电化学技术对材料进行表征。当Mo2C/MC复合材料用作碘介导染料敏化太阳能电池(DSSC)中的对电极(CE)时,电池的功率转换效率(PCE)达到7.29%,其中Bi/Mo2C/MC DSSC的性能为8.06%,远高于Pt CE电池的性能(7.08%)。钼基纳米复合材料在三碘化物/碘化物电解质中优异的电化学稳定性表明它们可能成为 DSSC 中 Pt 电极的有前途的替代品。该工作为DSSCs金属/碳化物/碳纳米复合CE材料的开发提供了新思路。
Mo-based binary/ternary nanocomposites were designed and prepared via soft template synthesis by combining Mo2C and Bi/Mo2C into mesoporous carbon (MC). The materials were characterized by using various analytical and electrochemical techniques. When Mo2C/MC composites were used as counter electrodes (CEs) in iodide-mediated dye-sensitized solar cells (DSSCs), the power conversion efficiencies (PCEs) of the cells reached 7.29%, and the performance of DSSC with Bi/Mo2C/MC was 8.06%, which was much higher than that of the cell with Pt CE (7.08%). The excellent electrochemical stability of Mo-based nanocomposites in triiodide/iodide electrolyte indicated that they could be promising alternatives to Pt electrodes in DSSCs. This work provided a new idea for the development of metal/carbide/carbon nanocomposite CE materials for DSSCs.
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