• 文献标题:   Effect of reducing agents on co-precipitation synthesis of titanium dioxide/reduced graphene oxide composite materials for upgrading the performance of dye-sensitized solar cells
  • 文献类型:   Article
  • 作  者:   CUONG LV, CUONG DLT, NGHIA LTT, HUNG LK, HOANG NT, NHIEM LT, CHAU PTL, PHONG MT, HIEU NH
  • 作者关键词:   reducing agent, titanium dioxide, reduced graphene oxide, photoanode material, dyesensitized solar cell
  • 出版物名称:   CHEMICAL ENGINEERING SCIENCE
  • ISSN:   0009-2509 EI 1873-4405
  • 通讯作者地址:  
  • 被引频次:   1
  • DOI:   10.1016/j.ces.2022.118145 EA OCT 2022
  • 出版年:   2022

▎ 摘  要

Herein, titanium dioxide/reduced graphene oxide (TiO2/rGO) composite material was synthesized using the co-precipitation method to investigate reducing agents. The as-prepared TiO2/rGO composite material was employed to fabricate photoanode in dye-sensitized solar cells (DSSCs). Experimental results showed that the reducing agents were essential in reducing GO into rGO. Still, they also had a significant influence on the bonding of rGO with TiO2, leading to the narrowing of band-gap energy photoanode material and enhancement of DSSCs performance. The high performance was recognized for DSSCs using ascorbic acid (6.94 %), hydrazine (7.08 %), and sodium borohydride (7.17 %), while low counterpart was affirmed to sodium citrate (5.54 %), and D-glucose (4.63 %) in comparison with pure TiO2 (6.82 %). Therefore, the findings from this research are highly expected to pave the way for optimizing coprecipitation synthesis of TiO2/rGO composite based on the favorable reducing agents, ultimately applying for the fabrication of DSSCs commercially. (C) 2022 Elsevier Ltd. All rights reserved.