WN/nitrogen-doped reduced graphite oxide hybrids for triiodide reduction in dye-sensitized solar cells
Research on Chemical Intermediates, ISSN: 1568-5675, Vol: 46, Issue: 3, Page: 1705-1714
2020
- 3Citations
- 2Captures
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Article Description
The development of low-cost, environmental friendliness, outstanding catalytic activity, superior conductivity and good stability counter electrode (CE) catalyst in dye-sensitized solar cells (DSSCs) is important to promote the commercial application of DSSCs. Here, WN/nitrogen-doped reduced graphite oxide hybrids (WN/NrGO) had been synthesized by hydrothermal method followed by nitridation treatment, which used as CE catalysts for catalyzing I to I. The combined WN and nitrogen-doped reduced graphite oxide (NrGO) into WN/NrGO could effectively regulate the catalytic activity for the reduction of I, accelerate the charge transfer at the interface, and then the synergistic effect between of them can be fully achieved. When the WN/NrGO served as the CE catalyst in DSSCs, the photoelectric conversion efficiency (PCE) of 7.42% has been obtained, compared to the conventional Pt-based DSSCs (7.71%). Meanwhile, as-prepared WN/NrGO exhibited higher PCE than that of the solo WN (6.19%) and NrGO (5.81%) in parallel. A series of electrochemical measures revealed that the WN/NrGO displayed the higher catalytic activity and charge transfer ability than that of the solo WN and NrGO, so the synthesized low-cost WN/NrGO have an potential to be used as the effectively CE catalysts for the replacement of the noble Pt.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85076373905&origin=inward; http://dx.doi.org/10.1007/s11164-019-04057-y; http://link.springer.com/10.1007/s11164-019-04057-y; http://link.springer.com/content/pdf/10.1007/s11164-019-04057-y.pdf; http://link.springer.com/article/10.1007/s11164-019-04057-y/fulltext.html; https://dx.doi.org/10.1007/s11164-019-04057-y; https://link.springer.com/article/10.1007/s11164-019-04057-y
Springer Science and Business Media LLC
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