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Academic Report: Insights into theformation process and physical chemical properties of two-dimensional polymers

23 May , 2018

Topic: Insights into the formation process andphysicalchemical properties of two-dimensional polymers

Time: 2:30pm, May 25 (Friday), 2018

Venue: Room 420, Teaching Building No.3, East Campus

Lecturer: Prof. Lei Shengbin

Lecturer introduction:

Professor, Department of Chemistry, TianjinUniversity, PhD supervisor, Current Director of the Department of Chemistry,School of Science, Tianjin University

1. EducationalExperience

1999/9-2002/7:Institute of Chemistry, Chinese Academy of Sciences, PhD, Physical Chemistry, Supervisor:Wang Chen, Researcher;

1996/9-1999/7:Department of Chemistry, Shandong University, Master, Physical Chemistry, supervisor:Prof. Chen Shenhao;

1992/9-1996/7:Department of Chemistry, Shandong University, Bachelor.

2. ResearchBackground

2015/8 till now:School of Science, Tianjin University, Professor, Doctoral Supervisor;

2009/9-2015/7: HarbinInstitute of Technology, Key MoE Laboratory of Microsystem and MicrostructureManufacturing, Doctoral supervisor;

2006/7-2009/8:Laboratory of Photochemistry and Spectroscopy, Department of Chemistry,Catholic University of Leuven, Belgium, Postdoctoral research;

2005/1-2006/7:Associate researcher, Key Laboratory of Molecular Nanostructures and Nanotechnology,Institute of Chemistry, Chinese Academy of Sciences;

2002/7-2004/12:Assistant researcher, Key Laboratory of Molecular Nanostructures andNanotechnology, Institute of Chemistry, Chinese Academy of Sciences

His work focuses on the design, assembly, andcharacterization of interface supra molecular structures. He has madesignificant progress in the design and characterization of complexmulti-component assembly structures, two-dimensional host-guest structure andinterfacial phase behavior, and research on fine structures of conjugatedpolymers. He has published more than 120 papers in some prestigious academicjournals such as Angew. Chem. Int.Ed., J. Am. Chem. Soc., Nano Lett., Adv.Mater., ACS nano, Chem. Mater., Chem. Comm., Chem. Eur. J., etc.

The papers were cited more than 4,000 times. He wasawarded the prize of the Young Chemical Award of the Chinese Chemical Societyin 2005, and was supported by MoE’s New Century Excellent Talents Program in2009

Lecture introduction: Combings canning probe microscopy withdensity functional theory, molecular mechanics and Monte Carlo simulation, wehave systematically investigated the design and construction of two-dimensionalcovalent architectures via dynamic covalent bonds, and investigated thereaction/assembling mechanism and properties of these novel two-dimensionalmaterials. We demonstrated the key role played by the adsorption and assemblingof reaction precursors in the surface confined dynamic covalent chemistry, bothin controlling the reaction and products election. We have also proved theapplicability of the concentration-in-control strategy, which was firstreported by us in the supra molecular assembling studies, in the surfaceconfined synthesis of porous two-dimensional polymers. We have systematicallyinvestigated the determining factors in the surface confined dynamic covalentreaction, and clearly demonstrated the significant role played by thepreferential adsorption, concentration and molar ratio of reaction precursors.Appling the concentration-in-control strategy we have developed an easy and lowcost procedure for the room temperature preparation of conjugatedtwo-dimensional polymers with very good regularity and continuity, both on thesurface of graphite and graphene. By introducing chemical and photo activegroups we have also realized the on-surface synthesis of functional 2Dpolymers, and explored their application in electro-energy storage and photo detection.We have also conducted systematic investigations on the mechanism of on-surfacepolymerization and physical properties of two-dimensional polymers by combiningSPM with DFT and Monte Carlo simulation.

All are welcome!

School of Environmental and Chemical Engineering

May 23, 2018

(Translated by Liu Shuai)