Pt/graphene nanocomposites with low Pt-loadings: Synthesis through one- and two-step chemical reduction methods and their use as promising counter electrodes for DSSCs
In this study, one- and two-step chemical reduction methods were compared in terms of the production of Pt/graphene nanocomposites with low platinum (Pt)-loadings. Cyclic voltammetry and electrical impedance analysis indicated that the composites displayed high electrocatalytic activity with respect...
Gespeichert in:
Veröffentlicht in: | Composites science and technology 2015-06, Vol.113, p.46-53 |
---|---|
Hauptverfasser: | , , , , , , , , , , , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | In this study, one- and two-step chemical reduction methods were compared in terms of the production of Pt/graphene nanocomposites with low platinum (Pt)-loadings. Cyclic voltammetry and electrical impedance analysis indicated that the composites displayed high electrocatalytic activity with respect to the reduction of iodide/triiodide. Furthermore, the Pt/RGO composites were deposited on fluorine-doped tin oxide substrates by drop coating and were applied as counter electrodes (CEs) for dye-sensitized solar cells (DSSCs). The energy conversion efficiency of the DSSCs based on Pt/RGO CEs (prepared using the one-step reduction method) was only 0.9% lower than that of the Pt CE-based cell. |
---|---|
ISSN: | 0266-3538 1879-1050 |
DOI: | 10.1016/j.compscitech.2015.03.015 |