https://scholars.lib.ntu.edu.tw/handle/123456789/498032
標題: | Carbon-doped SnS<inf>2</inf> nanostructure as a high-efficiency solar fuel catalyst under visible light | 作者: | Shown, I. Samireddi, S. Chang, Y.-C. Putikam, R. Chang, P.-H. Sabbah, A. Fu, F.-Y. Chen, W.-F. Wu, C.-I. Yu, T.-Y. Chung, P.-W. Lin, M.C. Chen, L.-C. CHIH-I WU LI-CHYONG HEN |
公開日期: | 2018 | 卷: | 9 | 期: | 1 | 來源出版物: | Nature Communications | 摘要: | Photocatalytic formation of hydrocarbons using solar energy via artificial photosynthesis is a highly desirable renewable-energy source for replacing conventional fossil fuels. Using an l-cysteine-based hydrothermal process, here we synthesize a carbon-doped SnS2 (SnS2-C) metal dichalcogenide nanostructure, which exhibits a highly active and selective photocatalytic conversion of CO2 to hydrocarbons under visible-light. The interstitial carbon doping induced microstrain in the SnS2 lattice, resulting in different photophysical properties as compared with undoped SnS2. This SnS2-C photocatalyst significantly enhances the CO2 reduction activity under visible light, attaining a photochemical quantum efficiency of above 0.7%. The SnS2-C photocatalyst represents an important contribution towards high quantum efficiency artificial photosynthesis based on gas phase photocatalytic CO2 reduction under visible light, where the in situ carbon-doped SnS2 nanostructure improves the stability and the light harvesting and charge separation efficiency, and significantly enhances the photocatalytic activity. © 2018 The Author(s). |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/498032 | DOI: | 10.1038/s41467-017-02547-4 | SDG/關鍵字: | carbon; carbon dioxide; hydrocarbon; nanomaterial; sulfide; tin derivative; tin sulfide; unclassified drug; carbon dioxide; catalysis; catalyst; efficiency measurement; energy resource; fossil fuel; fuel cell; gas phase reaction; hydrocarbon; hydrothermal system; light intensity; nanoparticle; photochemistry; photolysis; photosynthesis; reduction; renewable resource; separation; solar power; adsorption; Article; chemical composition; crystal structure; density functional theory; desorption; diffuse reflectance spectroscopy; light; nanocatalyst; photocatalysis; photochemistry; photoluminescence; photosynthesis; quantum chemistry; Raman spectrometry; reduction (chemistry); scanning electron microscopy; solar energy; structure analysis; transmission electron microscopy; X ray diffraction; X ray photoelectron spectroscopy |
顯示於: | 電機工程學系 |
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