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新型溶剂热体系制备特殊暴露面锐钛矿TiO2纳米棒的合成研究

刘进

刘进. 新型溶剂热体系制备特殊暴露面锐钛矿TiO2纳米棒的合成研究[J]. 钢铁钒钛, 2021, 42(3): 31-36. doi: 10.7513/j.issn.1004-7638.2021.03.005
引用本文: 刘进. 新型溶剂热体系制备特殊暴露面锐钛矿TiO2纳米棒的合成研究[J]. 钢铁钒钛, 2021, 42(3): 31-36. doi: 10.7513/j.issn.1004-7638.2021.03.005
Liu Jin. Synthesis of anatase TiO2 nanorods with special exposed surface in a novel solvothermal system[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(3): 31-36. doi: 10.7513/j.issn.1004-7638.2021.03.005
Citation: Liu Jin. Synthesis of anatase TiO2 nanorods with special exposed surface in a novel solvothermal system[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(3): 31-36. doi: 10.7513/j.issn.1004-7638.2021.03.005

新型溶剂热体系制备特殊暴露面锐钛矿TiO2纳米棒的合成研究

doi: 10.7513/j.issn.1004-7638.2021.03.005
基金项目: 2021年度河南省高等学校重点科研项目(21A480007); 2021年度河南省科技攻关项目(212102210243);2021年度河南省高等学校重点科研项目(21B430010);开封大学2017年度博士点基金项目(KDBS-2017-001)
详细信息
    作者简介:

    刘进(1979—),男,河南开封人,高级工程师,工学博士,主要研究方向为新能源材料,E-mail:liujin9931@qq.com

  • 中图分类号: TF823

Synthesis of anatase TiO2 nanorods with special exposed surface in a novel solvothermal system

  • 摘要: 以四丁基氢氧化铵(TBAH)为形貌控制剂,采用一种新的无氟溶剂热反应体系,实现了特定晶面的可控合成,制备出了锐钛矿型TiO2单晶纳米棒材料。所获得的TiO2纳米棒主要由表面的{010}小平面控制。用该纳米棒制成的染料敏化电池(DSSCs)的短路电流密度Jsc约为10.9 mA/cm2,开路电压Voc约为0.74 V,光电功率转换效率约为5.75%;比用商业P25型 TiO2制成的DSSCs具有更为优异的电池性能,电池的短路电流密度、填充因子、功率转换效率分别提高了2.83%、10.94%和10.58%。在材料表征的基础上,对其形成机理进行了初步的探讨。
  • 图  1  新型溶剂热合成法制备的TiO2纳米棒SEM形貌

    Figure  1.  SEM images of TiO2 nanorods prepared by new hydrothermal synthesis

    图  2  单晶纳米TiO2棒的(a) TEM和(b) HRTEM形貌(插图为傅立叶变换(FFT)图和结构示意)

    Figure  2.  (a) TEM and (b) HRTEM images of single-crystal nano-TiO2 rods (the insets are Fourier transform (FFT) diagrams and structural schematics)

    图  3  (a) TiO2纳米棒的XRD图谱;(b)锐钛矿TiO2的标准XRD图谱

    Figure  3.  (a) XRD pattern of TiO2 nanorods; (b) Standard XRD pattern of anatase TiO2

    图  4  TiO2纳米棒和P25型TiO2分别制成的DSSCs的光伏曲线

    Figure  4.  Photovoltaic performance of DSSC prepared with the TiO2 nanorods and P25 TiO2

    图  5  TiO6 八面体链接聚合物示意[18]

    Figure  5.  Schematic diagram of TiO2 octahedral linked polymer

    表  1  由P25 TiO2和TiO2纳米棒制成的DSSC的电池参数

    Table  1.   DSSC parameters of battery respectively made of P25 TiO2 and TiO2 nanorods

    样品Voc/VJsc/(mA· cm−2)FFη/%
    P25 TiO20.7710.60.645.20
    TiO2纳米棒0.7410.90.715.75
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出版历程
  • 收稿日期:  2021-04-15
  • 刊出日期:  2021-06-10

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