Title:Crystal Phase-Engineering of Novel Nanomaterials

TheorySpeaker:Hua Zhang(Professor, Nanyang Technological University, Singapore，E-mail: HZhang@ntu.edu.sg)

Time: Jun. 15, 2018 10:00AM

Venue:Academic Conference Center, IOS, CAS

Abstract: In this talk, I will summarize the recent research on the crystal phase engineering of nanomaterials in my group. It includes the first-time synthesis of hexagonal-close packed (hcp) Au nanosheets (AuSSs) on graphene oxide, the first-time synthesis of 4H hexagonal phase Au nanoribbons (NRBs), the epitaxial growth of Ag, Pt, Pd, PtAg, PdAg, PtPdAg, Rh, Ir, Ru, Os and Cu with novel 4H phase on the 4H Au NRBs, and the synthesis of 4H/fcc-Au@metal sulfide core-shell NRB heterostructures. In addition, the first-time synthesis of 1T'-MoS2 and 1T'-MoSe2 Crystals have been achieved. Moreover, the crystal phase transformation of transition metal dichalcogenide nanomaterials will also be introduced. Currently, my group focuses on the crystal phase-based properties and applications in catalysis, surface enhanced Raman scattering, waveguide, photothermal therapy, chemical and biosensing, etc., which we believe are unique and critically important not only in fundamental study, but also in practical applications. Importantly, the concept of crystal phase heterostructures of nanomaterials is proposed.