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Researchers from Spanish National Research Council (CSIC) Report Details of New Studies and Findings in the Area of Electrochemicals

February 28, 2014

By a News Reporter-Staff News Editor at Energy Weekly News -- Researchers detail new data in Electrochemicals. According to news reporting from Zaragoza, Spain, by VerticalNews journalists, research stated, "Carbon materials represent an attractive alternative to platinum in dye-sensitized solar cells (DSSC) counter electrodes to contribute to an efficient conversion of solar energy into electricity. The use of highly graphitic carbon nanofibers (CNFs) is investigated by analyzing the effect of the filament diameter, surface area and graphitization degree on the DSSC cathode performance."

The news correspondents obtained a quote from the research from Spanish National Research Council (CSIC), "To this purpose, transmission electron microscopy (TEM), X-ray diffraction (XRD), Raman spectroscopy and physisorption analysis are used to characterize the main properties of the CNFs. The behavior of CNFs as counter electrodes in DSSC is investigated by polarization experiments and electrochemical impedance spectroscopy. Among the different materials, the CNF characterized by the highest surface area (183 m(2) g(-1)), thinnest filament size (24 nm) and highest density of surface defects shows the best performance in terms of efficiency, open circuit potential and short circuit current density. Further investigation of the electrode thickness together with series and charge transfer resistance cross-analysis evidences the key role played by the surface area and surface graphitization to obtain a suitable performance."

According to the news reporters, the research concluded: "Compared to literature, so-obtained CNEs represent an interesting alternative to manufacture low cost DSSC cathodes."

For more information on this research see: Carbon nanofiber-based counter electrodes for low cost dye-sensitized solar cells. Journal of Power Sources, 2014;250():242-249. Journal of Power Sources can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier -; Journal of Power Sources -

Our news journalists report that additional information may be obtained by contacting D. Sebastian, CSIC, Inst Carboquim, Zaragoza 50018, Spain. Additional authors for this research include V. Baglio, M. Girolamo, R. Moliner, M.J. Lazaro and A.S. Arico.

Keywords for this news article include: Spain, Europe, Zaragoza, Electrochemicals

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Source: Energy Weekly News

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