Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8012692 | Materials Letters | 2018 | 4 Pages |
Abstract
A novel metal-free conductive catalyst is designed based on N-doped core-shell carbon spheres (N-CCS) with rich active sites. Furthermore, the doping of N atoms activated the fully interconnected mesoporous basal planes of carbon spheres. Corresponding electrochemistry (Cyclic voltammetry, electrochemical impedance spectroscopy, and Tafel polarization measurements) test discovered the excellent electrocatalytic activities in the Iâ/I3â redox reaction of dye-sensitized solar cells (DSSCs), suggesting to result from the improvement of the surface electronic properties of CCS. DSSCs with N-CCS as the counter electrode (CE) achieve power conversion efficiency (PCE) of 7.89%, higher than to Pt's value (7.48%) in the same test environment, demonstrating as a hopeful catalyst for low-cost DSSCs.
Related Topics
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Authors
Wen Wang, Jixin Yao, Xueqin Zuo, Guang Li,