河北师范大学学报(自然科学版)2025，Vol.49Issue(1) ：54-60.DOI:10.13763/j.cnki.jhebnu.nse.202503001

沿温度梯度热解钒多酸制备染料敏化太阳能电池V203@C对电极催化剂

V2O3@C Catalyst Prepared by Pyrolysis of Polyoxovanadate Along Temperature Gradient and Used as Counter Electrode of Dye-sensitized Solar Cell

栗元皓 刘淑慧 武莹杉 武克忠 张会
河北师范大学学报(自然科学版)2025，Vol.49Issue(1) ：54-60.DOI:10.13763/j.cnki.jhebnu.nse.202503001
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沿温度梯度热解钒多酸制备染料敏化太阳能电池V203@C对电极催化剂

V2O3@C Catalyst Prepared by Pyrolysis of Polyoxovanadate Along Temperature Gradient and Used as Counter Electrode of Dye-sensitized Solar Cell

栗元皓 1刘淑慧 1武莹杉 2武克忠 1张会3
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作者信息

  • 1. 河北师范大学化学与材料科学学院,石家庄 050024
  • 2. 河北师范大学化学与材料科学学院,石家庄 050024;河北化工医药职业技术学院化学与环境工程系,石家庄 050026
  • 3. 河北师范大学学报编辑部,石家庄 050024
  • 折叠

摘要

以钒多酸为V源,乙二醇为C源,采用溶剂热法制备前驱体,沿温度梯度500,600,700,800,900 ℃热解前驱体,得到5种不同组成和形貌的V2 O3@C复合材料,并分别将其作为染料敏化太阳能电池(DSSCs)对电极.结果显示,700 ℃下所制备的V2O3@C复合材料电催化性能最优,能量转换效率(PCE)最高,为5.57％.这归因于V2O3和C之间的协同作用增强了催化剂的导电性,增大了材料的比表面积而产生大量的催化活性位点.

Abstract

The precursors of catalysts were prepared by solvothermal method using polyoxovanadate as V source and ethylene glycol as C source.When the precursors were pyrolysed along the temperature gradi-ent of 500,600,700,800,900 ℃,five V2O3@C composites with different compositions and morphologies were obtained and used as counter electrodes of dye-sensitised solar cells(DSSCs),respectively.The results showed that the V2O3@C composites prepared at 700 ℃ had the best electrocatalytic performance and the highest power conversion efficiency(PCE)of 5.57％among them.This is attributed to the synergistic inter-action between V2O3 and C,which enhances the conductivity of the catalyst and increases the specific sur-face area of the material to generate a large number of catalytically active sites.

关键词

钒多酸/溶剂热法/染料敏化太阳能电池/对电极

Key words

polyoxovanadate/solvothermal method/dye-sensitized solar cell/counter electrode

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出版年

2025
河北师范大学学报(自然科学版)
河北师范大学

河北师范大学学报(自然科学版)

影响因子：0.291
ISSN：1000-5854
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