主讲概况：张华，新加坡南洋理工大学教授。研究专长：超薄二维纳米材料及其杂化复合材料。He has published 5 invited book chapters, 68 patent applications (including 8 granted US patents), and over 390 papers. Some of his papers have been published in Science (1), Nat. Chem. (3), Nat. Rev. Mater. (1), Nat. Commun. (6), Sci. Adv. (1), Chem. Soc. Rev. (8), Acc. Chem. Res. (2), J. Am. Chem. Soc. (12), Angew. Chem. Int. Ed. (23), Adv. Mater. (31), ACS Nano (24), Nano Lett. (13), Energy Environ. Sci (12), Adv. Energy Mater. (6), Adv. Funct. Mater. (4), etc. Based on Web of Science on Jan. 27, 2017, the total citation times of his papers are over 32,000 with H-index of 87. In 2014, he was listed in the
主讲内容：In this talk, I will summarize the recent research on the crystal phase-controlled synthesis of novel noble metal nanomaterials in my group. It includes the first-time synthesis of hexagonal-close packed (hcp) Au nanosheets (AuSSs) on graphene oxide, surface-induced phase transformation of AuSSs from hcp to face-centered cubic (fcc) structures, alternating hcp/fcc Au square-like plates from AuSSs, ultrathin Au nanowires containing hcp phase, synthesis of ultrathin fcc Au@Pt and Au@Pd rhombic nanoplates through the epitaxial growth of Pt and Pd on the hcp AuSSs, respectively, the first-time synthesis of 4H hexagonal phase Au nanoribbons (NRBs) and their phase transformation to fcc Au RNBs, the epitaxial growth of Ag, Pt, Pd, PtAg, PdAg, PtPdAg, Rh, Ir, Ru, Os and Cu on 4H Au NRBs to form the 4H/fcc Au@metal core–shell NRBs, and the synthesis of 4H/fcc-Au@metal sulfide core-shell NRB heterostructures. 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 fundamentally, but also practically. Importantly, the concepts of crystal phase noble metal heterostructures is proposed.