From extended surface to Nanocatalysts: Molecular Specificity Controlled NanoCrystal Growth for High-Performing Catalysts

讲座名称: From extended surface to Nanocatalysts: Molecular Specificity Controlled NanoCrystal Growth for High-Performing Catalysts
讲座时间 2017-07-10
讲座地点 西二楼A102,曲江校区
讲座人 黄昱
讲座内容
讲座名称:From extended surface to Nanocatalysts: Molecular Specificity Controlled NanoCrystal Growth for High-Performing Catalysts
讲座时间:2017年7月10日,上午10:00
讲座地点:西二楼A102,曲江校区
讲座人:黄昱教授(美国加利福尼亚大学洛杉矶分校)
讲座内容:Material formation in nature is precisely controlled in all aspects from crystal nucleation, growth to assembly to deliver superior functions. Specific biomolecule-material interactions have been hypothesized to play important roles in these processes. Proteins, polymers and small molecules have been extensively explored to replicate the degree of control in material formation in vitro and for nonbiogenic materials. However the organic-inorganic interfacial interaction is still far from being understood which hinders the further advancement of biomimetic material formation. In this talk I will share our efforts on decoding the myth of biomolecular specificity to material surface and their roles in controlling crystal nucleation and growth. The selection of facet specific short peptides and their abilities in guiding predictable morphology control of Pt nanocrystals will be first demonstrated. Then detailed experimental and theoretical studies on binding mechanism will be discussed. Based on mechanistic understanding, we designed small molecules bearing molecular signature for facet specific adsorption to modulate the nucleation/growth of the Pt and Pt alloy nanocrystals to deliver the expected nanostructures and functions. At the end of talk I will share our recent research on improving catalytic functions of nanocrystals through synthetic design. These studies open up opportunities in understanding the molecular details of inorganic-organic interface interaction, which can one day lead to the development of a library of molecular functions for biomimetic materials design and engineering.
           

 

讲座人介绍

黄昱,2003年博士毕业于哈佛大学,同年在劳伦斯-利弗莫尔国家实验室进行博士后研究。2006年就职于加州大学洛杉矶分校,现任教授、博士生导师、加州纳米研究所研究员。

黄昱教授通过在分子水平上的研究,揭示了控制纳米材料的合成与组装的基本原理,并利用这些原则来设计具有独特的功能和特性纳米材料和纳米器件,解决了在电子、能源科学和生物医学领域的一些关键科学问题。黄昱博士在Science、Nature、Nature Mater.、Nature Nanotechnol.、Nature Chem.、Nature Commun.、PNAS、J. Am. Chem. Soc.、Angew. Chem. Int. Ed.等国际顶尖杂志发表研究论文60余篇。获得了诸多学术奖励:世界100强的年轻的创新者奖、斯隆奖、美国总统青年科技奖、国防高等研究计划署青年教授奖、美国国立卫生研究院创新奖和Kavli奖。(本讲座可盖章)

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