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FeS2/carbon hybrids on carbon cloth: a highly efficient and stable counter electrode for dye-sensitized solar cell

Abstract

Low-cost, robust counter electrode (CE) with merits of superior catalytic activity and long-term stability, rapid electron/mass transporting is highly desirable for dye-sensitized solar cell (DSC). Herein, FeS2/carbon hybrids on carbon cloth (FeS2/C@CC), in which FeS2 nanoparticles were embedded in a carbon shell, were fabricated using an in-situ deposition-carbonization-sulfurization approach. The hybrid electrode can provide rapid mass/electron transport rate at the electrolyte/ electrode interface, revealed by the electrochemical impedance spectroscopy and Kelvin probe force microscope measurements . Moreover, the in-situ grown carbon shell not only guaranteed the tight adhesion of hybrid catalysts to substrate, but also contributed to the long-term stability and partly catalytic activity. As a result, device with the FeS2/C@CC CE presented a power conversion efficiency of 8.15 %, exceeding Pt (7.61%). The as-developed hybrid FeS2/C@CC electrode is a very promising candidate as robust CE in DSC. Meanwhile, the fabrication method could offer new opportunities in exploring high-performance catalysts for various energy-related applications.

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Supplementary files

Publication details

The article was accepted on 09 May 2019 and first published on 10 May 2019


Article type: Paper
DOI: 10.1039/C9SE00240E
Sustainable Energy Fuels, 2019, Accepted Manuscript

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    FeS2/carbon hybrids on carbon cloth: a highly efficient and stable counter electrode for dye-sensitized solar cell

    L. Li, P. Ma, S. Hussain, L. Jia, D. Lin, X. Yin, Y. Lin, Z. Cheng and L. Wang, Sustainable Energy Fuels, 2019, Accepted Manuscript , DOI: 10.1039/C9SE00240E

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