Zhao, Rongfang; Tang, Dongmei; Huan, Long; Wu, Qianhui; Li, Wenlong; Zhang, Xiue; Chen, Ming; Diao, Guowang
发表期刊SOLAR ENERGY
ISSN0038-092X
2019-01-15
卷号178页码:241-248
关键词Cobalt selenidesHollow hierarchical structureTriiodide reductionElectrocatalytic activityDye-sensitized solar cells
研究领域Energy & Fuels
DOI10.1016/j.solener.2018.12.031
产权排序[Zhao, Rongfang; Tang, Dongmei; Huan, Long; Wu, Qianhui; Li, Wenlong; Zhang, Xiue; Chen, Ming; Diao, Guowang] Yangzhou Univ, Sch Chem & Chem Engn, Yangzhou 225002, Jiangsu, Peoples R China; [Zhao, Rongfang] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
作者部门中科院烟台海岸带研究所知识产出
英文摘要The exploration of nonprecious metal-based electrocatalysts with high efficiency for the triiodide reduction is critical for the practical applications of the dye-sensitized solar cells. Herein, we develop a facile one-step hydrothermal method to synthesize hollow hierarchical structure Co0.85Se. Under the methanol-water reaction system, the product named as hollow hierarchical structure Co0.85Se-M has the largest specific surface area (215.36 m(2) g(-1)) and the best crystallinity than other products obtained from other alcohol-water reaction systems. When this electrocatalyst is applied as a counter electrode for the dye-sensitized solar cells, it exhibits a small peak-to-peak separation (E-pp, 97 mV) for the reduction of I-3(-)/I- redox couple. It is found that the catalytic activity of Co0.85Se is closely dependent on the crystallinity. Moreover, the reactivity pathway is identified by density functional theory, which confirms that triiodide is reduced to iodide ion on Co0.85Se with a smaller energy barrier (similar to 0.65 eV) than on Pt (similar to 1.18 eV). Both experimental and theoretical results demonstrate Co0.85Se-M as an ideal counter electrode material for the dye-sensitized solar cells with a higher power conversion efficiency (8.76%) than Pt counter electrode (7.20%).
文章类型Article
资助机构National Natural Science Foundation of China [21773203]; Natural Science Foundation of Jiangsu Province [BK20161329]; Innovation Projects in Jiangsu Province [KYZZ16_0491]; Jiangsu Province Fifth issue of 333 High level talents training project [BRA2016202]; Application Research Porgram of Nantong [MS12015028]; Priority Academic Program Development of Jiangsu Higher Education Institutions
收录类别SCI
语种英语
关键词[WOS]FREE COUNTER ELECTRODE; IN-SITU GROWTH; HIGH-PERFORMANCE; LOW-COST; CARBON NANOTUBES; COMPOSITE FILM; GRAPHENE; NANOSHEETS; SELENIDES; CATALYSTS
研究领域[WOS]Energy & Fuels
WOS记录号WOS:000457663800027
引用统计被引频次：6[WOS][WOS记录][WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/24626
专题中科院烟台海岸带研究所知识产出
作者单位1.Yangzhou Univ, Sch Chem & Chem Engn, Yangzhou 225002, Jiangsu, Peoples R China;
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
推荐引用方式
GB/T 7714Zhao, Rongfang,Tang, Dongmei,Huan, Long,et al. Hollow hierarchical structure Co0.85Se as efficient electrocatalyst for the triiodide reduction in dye-sensitized solar cells[J]. SOLAR ENERGY,2019,178:241-248.
APAZhao, Rongfang.,Tang, Dongmei.,Huan, Long.,Wu, Qianhui.,Li, Wenlong.,...&Diao, Guowang.(2019).Hollow hierarchical structure Co0.85Se as efficient electrocatalyst for the triiodide reduction in dye-sensitized solar cells.SOLAR ENERGY,178,241-248.
MLAZhao, Rongfang,et al."Hollow hierarchical structure Co0.85Se as efficient electrocatalyst for the triiodide reduction in dye-sensitized solar cells".SOLAR ENERGY 178(2019):241-248.
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