报告题目：Phase Engineering of Novel Nanomaterials
In this talk, I will summarize the recent research on the 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 synthesis of crystal-phase heterostructured 4H/fcc Au nanorods, the epitaxial growth of metals with novel phases on the aforementioned Au nanostructures, and the synthesis of amorphous/crystalline hetero-phase Pd nanosheets. In addition, the first-time synthesis of 1T'-MoS2 and 1T'-MoSe2 crystals have been achieved. Moreover, the phase transformation of transition metal dichalcogenide nanomaterials during our developed electrochemical Li-intercalation method will also be introduced. Interestingly, the lithiation-induced amorphization of Pd3P2S8 is also achieved. Currently, my group focuses on the (crystal) phase-based properties and applications in catalysis, surface enhanced Raman scattering, waveguide, photothermal therapy, chemical and biosensing, clean energy etc., which we believe are quite unique and very important not only in fundamental studies, but also in practical applications. Importantly, the concepts of crystal-phase heterostructures and hetero-phase nanomaterials are proposed.
Keywords: Crystal Phase; Noble Metal Nanomaterials; Hexagonal-Close Packed; Face-Centered Cubic; Gold; Ultrathin Nanosheets; Transition Metal Dichalcogenides
报告人概况：Dr. Hua Zhang obtained his B.S. and M.S. degrees at Nanjing University in China in 1992 and 1995, respectively, and completed his Ph.D. with Prof. Zhongfan Liu at Peking University in China in July 1998. He joined Prof. Frans C. De Schryver’s group at Katholieke Universiteit Leuven (KULeuven) in Belgium as a Research Associate in January 1999. Then he moved to Prof. Chad A. Mirkin’s group at Northwestern University as a Postdoctoral Fellow in July 2001. He started to work at NanoInk Inc. (USA) as a Research Scientist/Chemist in August 2003. After that, he worked as a Senior Research Scientist at Institute of Bioengineering and Nanotechnology in Singapore from November 2005 to July 2006. Then he joined the School of Materials Science and Engineering in Nanyang Technological University (NTU) as an Assistant Professor. He was promoted to a tenured Associate Professor on March 1, 2011, and Full Professor on Sept. 1, 2013. In 2019, he joined the Department of Chemistry, City University of Hong Kong as a Chair Professor.
Dr. Zhang’s research is highly interdisciplinary. His current research interests focus on the (crystal-)phase engineering of nanomaterials and controlled epitaxial growth of heterostructures, including the synthesis of ultrathin two-dimensional nanomaterials (e.g. metal nanosheets, graphene, metal dichalcogenides, metal-organic frameworks, covalent organic frameworks, etc.), novel metallic and semiconducting nanomaterials, novel amorphous nanomaterials and their hybrid composites, for various applications such as catalysis, clean energy, (opto-)electronic devices, nano- and biosensors, and water remediation.
He has published 5 invited book chapters, 74 patent applications (including 8 granted US patents and 1 Singapore patent), and over 460 papers, among which 205 papers were published in IF>10 journals and 103 papers were published in 8<IF<10 journals. Some of his papers have been published in Science(1), Nat. Chem. (5), Nat. Catal. (1),Nat. Rev. Mater. (2), Nat. Commun. (8), Sci. Adv. (1), Nat. Protocols (1), Chem. Rev. (2), Chem. Soc. Rev. (12), Acc. Chem. Res. (2), J. Am. Chem. Soc. (16), Angew. Chem. Int. Ed. (28), Adv. Mater. (52), Chem (1), Energy Environ. Sci (12), Mater. Today (1), Adv. Energy Mater. (6), ACS Nano (29), Nano Lett. (14), Adv. Funct. Mater. (4), Nano Energy (4), Mat. Horizons (2), ACS Catal. (1),etc. Based on Web of Science on Mar. 8, 2019, the total citation times of his papers are over 57,500 with H-index of 118. In 2016, he was listed in the top 300 most cited researchers in the field of materials science and engineering (Elsevier Scopus). In 2015-2018, he was listed in the Highly Cited Researchers in Chemistry and Materials Science (Thomson Reuters). In 2015, he was listed as one of 19 “Hottest Researchers of Today” in the world in the World’s Most Influential Scientific Minds 2015 (Thomson Reuters, 2015). In 2014, he was listed in the Highly Cited Researchers 2014 in Materials Science, and also listed as one of 17 “Hottest Researchers of Today” and No. 1 in Materials and More in the world in the World’s Most Influential Scientific Minds 2014 (Thomson Reuters, 2014). Moreover, he got the Young Investigator Award (Young Giants of Nanoscience 2016, Hong Kong), Vice-Chancellor’s International Scholar Award (University of Wollongong, Australia, 2016), ACS Nano Lectureship Award (2015), World Cultural Council (WCC) Special Recognition Award (2013), the ONASSIA Foundation Lectureship (Greece, 2013), Asian Rising Stars (15th Asian Chemical Congress, 2013), SMALL Young Innovator Award (Wiley-VCH, 2012) and Nanyang Award for Research Excellence (2011).