期刊
CHEM
卷 5, 期 10, 页码 2605-2616出版社
CELL PRESS
DOI: 10.1016/j.chempr.2019.06.019
关键词
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资金
- Ministry of Science and Technology of China [2017YFA0206903]
- National Science Foundation of China [21861132004, 21603248]
- Strategic Priority Research Program of the Chinese Academy of Science [XDB17000000]
- Youth Innovation Promotion Association of Chinese Academy of Sciences [2018031]
- K.C. Wong Education Foundation, China
- Key Research Program of Frontier Science of the Chinese Academy of Sciences [QYZDY-SSW-JSC029]
Solar-driven catalytic CO2 reduction is attractive to produce usable fuels and value-added chemicals. However, conventional strategies suffer from low activity and/or expense of sacrificial reagents. Here, we describe the first example of CO2 reduction integrated with the oxidative organic synthesis by solar energy. With visible-light irradiation, CdSe/CdS quantum dots (QDs) enable photocatalytic conversion of CO2 to CO with an exciting rate of similar to 412.8 mmol g(-1) h(-1) and a high selectivity of > 96% in the presence of triethylamine. More importantly, CO2-to-CO conversion proceeds smoothly when integrated with oxidative coupling of 1-Phenylethanol to evolve pinacol. 1-Phenylethanol with electron-donating groups at the p-position of aryl ring, for example, is converted to corresponding pinacols with excellent yields up to 98%. The released protons and electrons of oxidative half-reaction are used for CO2 reduction. Apparently, this strategy provides the exact answer toward cost-effective CO2 photoreduction and opens a new horizon for efficient solar-to-fuel conversion.
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