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Spontaneous exciton dissociation in organic photocatalyst under ambient conditions for highly efficient synthesis of hydrogen peroxide.
Yan, Huijie; Shen, Minhui; Shen, Yong; Wang, Xu-Dong; Lin, Wei; Pan, Jinhui; He, Jian; Ye, Yu-Xin; Yang, Xin; Zhu, Fang; Xu, Jianqiao; He, Jianguo; Ouyang, Gangfeng.
Affiliation
  • Yan H; Ministry of Education Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China.
  • Shen M; Ministry of Education Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China.
  • Shen Y; Ministry of Education Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China.
  • Wang XD; Ministry of Education Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China.
  • Lin W; Advanced Institute of Natural Sciences, Beijing Normal University at Zhuhai, Zhuhai 519087, China.
  • Pan J; Ministry of Education Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China.
  • He J; State Key Laboratory of Biocontrol/Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), School of Marine Sciences, Sun Yat-sen University, Guangzhou 510275, China.
  • Ye YX; Ministry of Education Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China.
  • Yang X; School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, Guangzhou 510275, China.
  • Zhu F; Ministry of Education Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China.
  • Xu J; Ministry of Education Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China.
  • He J; State Key Laboratory of Biocontrol/Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), School of Marine Sciences, Sun Yat-sen University, Guangzhou 510275, China.
  • Ouyang G; Ministry of Education Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China.
Proc Natl Acad Sci U S A ; 119(22): e2202913119, 2022 05 31.
Article in En | MEDLINE | ID: mdl-35605116
ABSTRACT
SignificanceHydrogen peroxide is a highly competitive ready-to-use product for solar energy transformation. Nevertheless, the contemporary photosynthetic systems are not efficient enough, due to severe charge recombination caused by high activation energy and binding energy of the exciton. Herein, we achieve spontaneous exciton dissociation at room temperature. Moreover, the photosynthesis of H2O2 reaches between 9,366 and 12,324 µmol·g-1 from 9 AM to 4 PM in ambient conditions, that is, sunlight irradiation, real water including fresh water and seawater, room temperature, and open air. The ultrahigh photocatalytic efficiency in ambient conditions allows the solar-to-chemical conversion in a real cost-effective and sustainable way, which represents an important step toward real applications.
Key words

Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Proc Natl Acad Sci U S A Year: 2022 Type: Article Affiliation country: China

Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Proc Natl Acad Sci U S A Year: 2022 Type: Article Affiliation country: China