报告时间：2017年9月27日（周三）上午9：30

报告地点： 子良B4会议室

邀请人：高分子材料与工程研究所 曹澥宏 博士

报告一：Crystal Phase-Controlled Synthesis of Novel Noble Metal Nanomaterials

报告人：新加坡南洋理工大学 张华 教授

报告人简介：

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.

Dr. Zhang’s research is highly interdisciplinary. His current research interests focus on synthesis of two-dimensional nanomaterials, carbon materials and their hybrid composites for various applications in nano- and biosensors, clean energy, water remediation, etc.; controlled synthesis, characterization and application of novel metallic and semiconducting nanomaterials; scanning probe microscopy; lithography-based fabrication of surface structures from micro- to nanometer scale; self-assembly and self-organization of nano- and biomaterials; self-assembled monolayers; etc.

He has published 5 invited book chapters, 68 patent applications (including 8 granted US patents), and over 410 papers, among which 169 papers were published in IF>10 journals. Based on Web of Science on July 1, 2017, the total citation times of his papers are over 37,000 with H-index of 93. In 2015, he was elected as an Academician of the Asia Pacific Academy of Materials (APAM). In Nov. 2014, he was elected as a Fellow of the Royal Society of Chemistry (FRSC). In 2016, he was listed in the top 300 most cited researchers in the field of materials science and engineering (Elsevier Scopus). In 2016, he was listed in the "Highly Cited Researchers 2016" in Chemistry and Materials Science (Thomson Reuters, 2016). In 2015, he was listed in the "Highly Cited Researchers 2015" in Chemistry and Materials Science, and also 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).

报告内容简述：

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.

Keywords: Crystal Phase; Noble Metal Nanomaterials; Hexagonal-Close Packed; Face-Centered Cubic; Gold; Ultrathin Nanosheets

Reference:

[1] X. Huang, et al., Nat. Commun. 2011, 2, 292.

[2] Z. X. Fan, et al., Nat. Commun., 2015, 6, 6571.

[3] X. Huang, et al., Angew. Chem. Int. Ed. 2011, 50, 12245.

[4] X. Huang, et al., Adv. Mater. 2012, 24, 979.

[5] Z. X. Fan, et al., Angew. Chem. Int. Ed., 2015, 54, 5672.

[6] (a) Z. X. Fan, et al., Nat. Commun., 2015, 6, 7684. (b) Z. X. Fan, et al., J. Am. Chem. Soc., 2016, 138, 1414.

[7] Z. X. Fan, et al., J. Am. Chem. Soc., 2015, 137, 10910.

[8] H. Zhang, ACS Nano, 2015, 9, 9451.

报告二：过渡金属硫族化合物二维纳米薄片及异质结：制备、表征及应用

报告人：南京工业大学  李海  教授

报告人简介：

南京工业大学先进材料研究院教授，博士生导师，江苏省特聘教授

2001年毕业于郑州大学化学系化学基地班，获得学士学位。2007年7月于中国科学院上海应用物理研究所获得博士学位。2009年2月至2014年7月在新加坡南洋理工大学材料科学与工程学院张华教授课题组继续从事博士后研究。2014年8月加入南京工业大学先进材料研究院。2015年9月被遴选为第六批江苏省特聘教授，并获得重点资助。现任先进材料研究院纳米光电材料研究所所长。

主要从事二维纳米材料（石墨烯、二硫化钼等）的制备、表征及其在气体传感器和光敏晶体管中的应用。近年来，在Acc. Chem. Res.、Angew. Chem. Int. Ed.、J. Am. Chem. Soc.、Adv. Mater.、Nano Lett.、ACS Nano、Small等学术期刊上发表SCI收录论文91篇，其中IF>7.0的论文有57篇，被引用8000多次，h因子为38。17篇论文入选ESI数据库高被引论文，1篇论文被选为Small杂志内封面文章。目前主持国家自然科学基金面上项目、江苏省特聘教授项目、教育部归国留学人员科研启动基金、江苏省自然科学基金面上项目和江苏省高校自然科学基金面上项目等。担任“Nano Lett.”，“ACS Nano”，“Adv. Funct. Mater.”，“Small”，“Nanoscale”，“Sci. Rep.”，“J. Mater. Chem. C”和“APL Mater.”等国际期刊审稿人。多次在国际会议中做口头报告、展板交流。

报告内容简述：

近年来，研究人员发现两种或多种二维纳米薄片组装形成的异质结往往展现出许多不同于单种二维纳米薄片的新奇物理性质和现象, 在化学、材料、微电子和光电器件领域有着广阔的应用前景。本报告将以石墨烯、二硫化钼、二硒化钨等二维纳米薄片为例，介绍课题组近年来在二维纳米薄片及其异质结的制备和表征方面所取得的进展。首先介绍如何利用光学显微镜快速准确测量单层和少层二维纳米薄片的厚度。其次介绍利用快速、洁净的转移方法制备二维纳米薄片异质结的方法，以及使用超低波数拉曼光谱仪来检测异质结中的层间相互作用。在报告的最后部分，将介绍这些材料在气体传感器和光敏晶体管等方面的应用。

1. H. Li, H. Zhang* et al. Preparation and Applications of Mechanically Exfoliated Single- and Multi-layer MoS2 and WSe2 Nanosheets, Accounts of Chemical Research, 2014, 47, 1067-1075.

2. H. Li, H. Zhang* et al. A Universal, Rapid Method for Clean Transfer of Nanostructures onto Various Substrates, ACS Nano, 2014, 8, 6563-6570.

3. H. Li, H. Zhang* et al. Rapid and reliable thickness identification of two-dimensional nanosheets using optical microscopy, ACS Nano, 2013, 7, 10344-10353.

4. H. Li, H. Zhang* et al. Investigation of MoS2 and Graphene Nanosheets by Magnetic Force Microscopy, ACS Nano, 2013, 7, 2842-2849.

5. H. Zhang, H. Li* et al. Optical thickness identification of transition metal dichalcogenide nanosheets on transparent substrates, Nanotechnology, 2017, 28, 164001

报告三：Pd-Ru single atom alloys and their catalytic properties

报告人：中国科学技术大学  洪勋  副研究员

报告人简介：

中国科学技术大学化学系特任副研究员

2000年-2004年，中国科学技术大学物理系，获理学学士学位。2004年-2010年，中国科学技术大学物理系，获凝聚态物理博士学位（导师：王冠中教授）。2010年-2012年，清华大学化学系博士后（合作导师：李亚栋院士）。2012年-2014年，新加坡南洋理工大学博士后（Postdoctoral Research Fellow，合作导师：Professor Hua ZHANG）。2014年至今，中国科学技术大学化学系，特任副研究员。2016年入选中国化学会“青年人才托举工程”。主要从事贵金属纳米材料的合成和性能研究，已在J. Am. Chem. Soc., Angew. Chem. Int. Ed., Adv. Mater, Small, Chem. Comm.等学术期刊发表论文25篇，其中第一作者或通讯作者11篇。 

研究方向：

（1）贵金属及合金纳米材料的合成与组装。

（2）纳米催化材料的制备与表征、电催化反应、有机催化反应。

代表性论文

X. Hong, Y. D. Li* et al., J. Am. Chem. Soc., 2012, 134, 18165

X. Hong, H. Zhang* et al., Adv. Mater., 2014, 26, 6250,

X. Hong, H. Zhang* et al., J. Am. Chem. Soc., 2015, 137, 1444

X. Hong,* Y. D. Li* et al., J. Am. Chem. Soc., 2015, 137, 14566

X. Hong,* Y. D. Li* et al., J. Am. Chem. Soc., 2016, 138, 13850

报告内容简述：

The properties of noble metals may greatly differ from their bulk as the size reduces to subnanometer or atomic level. In this talk, I will introduce the recent research on the synthesis of novel bimetallic catalysts at atomic scale in my group. It includes the synthesis of ordered porous Pd octahedra covered with monolayer Ru atoms[1], atomically dispersed Ru on ultrathin Pd Nanoribbons[2], Cu-Pt dual sites alloyed ultrathin Pd nanorings, and epitaxial growth of atomic layer Ru on ultrathin Pd nanosheets. Importantly, the above novel bimetallic structures exhibited excellent catalytic properties in terms of semihydrogenation of alkynes, chemoselective hydrogenation, hydrogen evolution reaction and oxygen evolution reaction.

[1] Ge. J, Hong. X,* Li. Y. D* et al. J. Am. Chem. Soc. 2015, 137, 14566

[2] Ge. J, Hong. X,* Li. Y. D* et al. J. Am. Chem. Soc. 2016, 138, 13850