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- W2904907036 abstract "Hollow carbon spheres (hCSs) have recently been emerging as low-cost and promising cathode catalysts toward triiodide reduction for dye-sensitized solar cells (DSSCs). However, it is still challenging and questionable for hCSs-based counter electrodes (CEs) to compete with traditional Pt CEs in DSSCs. Herein, nitrogen-enriched hCSs with atomically dispersed Co–Nx–C moieties (Co–N–hCSs) are synthesized via a calcination of cobalt-ions-absorbed N-enriched hollow copolymer sphere precursor. As inferred from cyclic voltammetry, electrochemical impedance spectroscopy, and Tafel polarization curves, the Co–N–hCSs display superior electrocatalytic activity and electrochemical stability. This excellent catalytic behavior can essentially be attributed to the high intrinsic electrocatalytic activity derived from the Co–Nx–C moieties, along with the robust N-enriched hollow sphere structure. As a result, the DSSCs with Co–N–hCSs as counter electrodes present an encouraging power conversion efficiency of 7.71%, which..." @default.
- W2904907036 created "2018-12-22" @default.
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- W2904907036 date "2018-12-18" @default.
- W2904907036 modified "2023-10-18" @default.
- W2904907036 title "Nitrogen-Enriched Hollow Carbon Spheres Coupled with Efficient Co–N<sub><i>x</i></sub>–C Species as Cathode Catalysts for Triiodide Reduction in Dye-Sensitized Solar Cells" @default.
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- W2904907036 doi "https://doi.org/10.1021/acssuschemeng.8b05758" @default.
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