高分子科学系列讲座254讲:Prof. Wai-Yeung Wong,Functional Metal-based Nanomaterials from Molecular Precursors

文章来源:    发布时间:2017-06-19
报告题目:Functional Metal-based Nanomaterials from Molecular Precursors (NO.PSLAB254-PS2017-11)
报 告 人:Prof. Wai-Yeung Wong
单  位:香港理工大学

  Organometallic polymers represent an important research field due to their combination of unique and intriguing redox, electronic, magnetic, optical, and catalytic properties and their ability to be easily processed and fabricated into thin films, fibers, and other forms. Modern technology depends on fast, reliable data processing and storage. Hard ferromagnetic (L10-phase) FePt alloy nanoparticles (NPs) with extremely high magnetocrystalline anisotropy are considered to be one of the most promising candidates for the next generation of ultrahigh-density data storage systems. The question of how to generate ordered patterns of L10-FePt NPs and how to transform the technology to the practical application is challenging. As these metallopolymers can be readily shaped and patterned using various lithographic techniques, they offer a convenient synthetic access to patterned arrays of metal NPs with control of their composition and density per unit area. However, many of the most desirable properties are exhibited by metal alloy NPs rather than single-component metal NPs. In this talk, the recent advances in developing new functional organometallic polymers as precursors to magnetic metal alloy nanoparticles and their lithographic patterning studies will be presented. These metallated polymers are promising as building blocks in high-density magnetic data storage media where the convenient and rapid patterning of magnetic NPs is highly desirable. In a related context, the synthesis and characterization of new bottom-up photofunctional metal complex nanosheets will also be presented.

 Prof. Wai-Yeung Wong

香港理工大学应用科学及纺织学院副院长及应用生物与化学科技学系化学科技讲座教授。现为香港化学会主席、担任杂志J. Mater. Chem. C 副主编. 长期从事无机和金属有机配合物合成、分子功能材料, 金属有机聚合物及其应用(如有机发光二极管和有机太阳能电池), 纳米材料和X光衍射晶体学等方面研究工作。发表学术期刊发表论文530余篇,被国内外同行他人引用达到16,000次(总引用19,000余次),H-索引指数为70,入选为2014-2016年汤森路透公布的材料科学领域高被引用的科学家。2009年,获香港裘槎基金会“优秀科研者奖。作为首位华人于2010年荣获英国皇家化学会“过渡金属化学奖”;2010年荣获国家教育部高校自然科学一等奖(排名第一)。2012年获“何梁何利基金科学与技术创新奖”;获2013年度国家自然科学奖二等奖(排名第一); 2015年获国家教育部“长江学者”讲座教授。