期刊
JOURNAL OF ELECTROCHEMICAL SCIENCE AND ENGINEERING
卷 -, 期 -, 页码 -出版社
INT ASSOC PHYSICAL CHEMISTS-IAPC
DOI: 10.5599/jese.1977
关键词
Carbon na nomateria ls; redox electrolyte; defect density; environmentally friendly synthesis; electrochemical performance
The design and development of a low-cost counter electrode using graphene-based material to replace traditional platinum counter electrode is the main focus of this research. The study demonstrates that reduced graphene oxide (rGO) has good catalytic activity towards I3- reduction, making it an efficient choice for dye-sensitized solar cells (DSSCs).
The design and development of an alternative counter electrode (CE) using graphenebased low-cost material for the dye-sensitized solar cell (DSSC) is the major motivation of the current research to replace the traditional platinum counter electrode. Herein, we prepared reduced graphene oxide (rGO) and investigated it for an efficient CE in DSSC. The structural and morphological properties of rGO are analyzed using FESEM, TEM and Raman techniques. The performance of I3- reduction on the CE is characterized by the EIS Nyquist plot, cyclic voltammetry, and the Tafel curve. The measured electrochemical results suggested that rGO CE has a lower charge transfer resistance (Rct), higher cathodic current density (Jrd), and higher Tafel slope as compared to graphene oxide (GO) CE, revealing that rGO CE has good catalytic activity towards the I3- reduction.
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