应实验室国际可再生能源研究中心lionel Vayssieres教授邀请，美国佛罗里达大学化学系纳米材料研究中心W. David Wei教授于7月22日访问实验室并在实验室北二楼大会报告厅举行“Plasmon-Mediated Surface Chemistry for Solar Photocatalysis”的学术报告。中心lionel教授主持报告会。

        利用太阳光促进有价值的化学反应来完成能量转化，是应对未来巨大能源需求挑战的一种理想的解决方案。David教授团队致力于解决有关表面等离子体共振（SPR）介导的界面电子转移（ET）和光热采暖的基本问题，以发展新材料并将太阳能战略高效的转化为化学能。本次报告中David教授揭示了在可见光下（λ>515纳米）的金/二氧化钛异质等离子介导的电子转移（PMET）机制；阐述了直接探测参与光催化反应转移的“有效热电子”弛豫动力学和热力学方法；讨论了通过操作“热电子”设计一类新的多组分结构太阳能光催化剂的结构有效分解水制氢方法；最后介绍了其团队最近利用SPR介导光热效应合成混合双金属纳米材料，并在可见光下氧化CO的新进展。

        与会师生就“有效热电子”传输过程，基于“热电子”设计策略的多结构高性能可见光催化剂制备，以及一氧化碳氧化等问题展开了激烈讨论。

专家介绍：

        W. David Wei joined the University of Florida in August 2009 as an assistant professor working in analytical, physical, and materials chemistry with research interests in novel electronic and optical properties of metallic and semiconductor nanomaterials and their applications in solar energy harvesting, conversion and storage; visible-light photocatalysis; and chemical and biological detection. David received his Ph.D. from the University of Texas at Austin with Mike White and trained as a postdoctoral researcher at Northwestern University with Chad Mirkin. He has also held a visiting research position at Pacific Northwest National Labs (PNNL). David has more than forty publications, thirty invited talks, and five pending patents, and he is a member of the American Chemical Society and American Vacuum Society. He has been awarded a summer fellowship at PNNL, the 2010 ORAU Ralph E. Powe Junior Faculty Enhancement Award, the 2011 Sigma Xi Junior Faculty Research Award, the 2013 UF-HHMI Science for Life Distinguished Mentor Award, and the 2014 UF faculty Adviser/Mentor of the Year Award. Most recently, David has been recognized with a CAREER award from NSF.