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Controlling Gold Nanoparticles with Atomic Precision: Size Focusing Synthesis, Functionalization and Catalytic Applications

Time: 10:00AM,

Date: Jan. 20th, 2014
Location: Room 219, Shi Xun Building , Tongji South Campus ( 67 Chifeng Road )
Reporter: 钱惠锋 博士 美国莱斯大学J. Evans Attwell-Welch学者
Gold nanoparticles have drawn significant research and technological interest due to their unique catalytic, optical, and electronic properties. Control of nanoparticles with atomic precision has long been a major dream of inorganic chemists. Apparently, an atomic level of synthetic control still poses major challenges to chemists in the nanoscience field. In this talk, a new “size focusing” methodology will be presented for the synthesis of atomically precise gold nanoparticles with core diameter spanning from 1.0 to 2.2 nanometer and containing from 25 up to 333 gold atoms in each particle. Such atomically precise nanoparticles allow their total structure (core plus surface) to be determined and facile functionalization of both metal core and surface ligands to tune their properties. Understanding the total structure (in particular the surface atomic arrangement) leads to the successful utilization of the materials as highly efficient catalysts for selective oxidation of sulfides and styrene, and electrochemical reduction of carbon dioxide. In addition, this talk will also discuss the applications of nanoparticles in biological imaging and environmental catalysis.
钱惠锋,男,1982年生于上海,于2004年毕业上海交通大学应用化学专业(工学学士),2007年毕业于上海交通大学材料学专业(工学硕士)。钱惠锋于2012年获得美国卡耐基梅隆大学化学博士学位,从2012年5月开始在莱斯大学从事博士后研究工作。研究工作包括贵金属纳米团簇的原子精度可控合成,手性团簇结构和构键方式研究。迄今为止,已经在PNAS, Nature Communications, JACS, Angew Chem., Nano Lett. 等国际一流期刊发表文章60多篇;目前的H影响因子35,论文被引用总计超过3200次。近几年来还获得过包括2013年国际纯粹及应用化学联合会(IUPAC)青年化学家奖,美国莱斯大学J. Evans Attwell-Welch学者,国际贵金属协会(IPMI)优秀科研奖和中国优秀自费留学生奖等众多重要奖项。

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