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                  中文版
                  Academics Content
                  New Progress Achieved in Interface Regulation and Control of Functional Composites by Lei Yongpeng from CSU
                  November 11, 2019Click:

                  Lei Yongpeng Research Team from Central South University (CSU), in cooperation with Academician Li Yadong and Professor Wang Dingsheng from Tsinghua University and Professor Zhou Gang from Hubei University of Technology, published a research paper titled Engineering atomic interface by single Pt atoms for enhanced photocatalytic hydrogen production in Angew. Chem. Int. Ed. Professor Lei Yongpeng, Academician Li Yadong, Professor Wang Dingsheng and Professor Zhou Gang are joint corresponding authors .Angew. Chem. Int. Ed.,subordinating to Wiley, is one of the most influential comprehensive publications in the field of chemistry currently.

                  (DefectiveTiO2 anchoring Pt atom, interface under regulation and control)

                  Optimizing the structure of photocatalyst on the scale of atom and facilitating separation of electron-hole pairs are critical for improving the performance of photocatalytic materials, but also very challenging. In this research, single Pt atoms are assembled on defective TiO2 carrier to obtain high-efficiency photocatalyst Pt1/def-TiO2. According to the research, besides acting as a proton reduction site, the single Pt atom facilitates adjacent TiO2 units to generatesurface oxygen vacancy and form Pt-O-Ti3+atom interface. The test results and DFT calculation indicate that Pt-O-Ti3+atom interface effectively facilities the photo-induced electron to transfer from Ti3+defective site to single Pt atoms and consequently promote the separation of electron-hole pairs. Such unique structure gives rise to the ultrahigh photocatalytic hydrogen production performance of Pt1/def-TiO2, as represented by TOF up to 51423 h-1.

                  This is another achievement made by Lei Yongpeng Research Team after their publications of research results in international famous periodicals such as Energy & Environmental Science, ACS Nano, ACS Energy Letters and Journal of Materials Chemistry, etc. in recent years.

                  Source: CSU Power Metallurgy Research Institute

                  The prev article:CSU Team Led by Professor Liu Min Makes New Progress in the Field of Local Coordination and Modulation of Catalytic Activity
                  The next article:Distinguished Professor Wang Liangbing from School of Materials, CSU, Develops a Novel Material with High-Efficiency Nitrogen Photofixation
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