讲座题目:Rational Synthesis of Metallic Nanoparticles for Catalytic Applications
报告人:Shouheng Sun
时间:7月1日(周五)下午3:00
地点:化学楼A713
主持人:侯仰龙 教授
报告内容摘要:
Using solution phase-based thermal decomposition and reduction chemistry, we have synthesized a series of monodisperse metallic (Fe, Co, Ni, Pd, Pt, Au) and their alloy nanoparticles (NPs). The metallic NPs can serve as seeds for the production of structurally more complicated core/shell Mc/Ms (Mc = Pd, Au, AgAu, or NiPd; Ms = Au, FePt, or Au/FePt) NPs. By tuning the sizes, compositions and shell thickness, these NPs have been made catalytically more active and durable for the reduction of oxygen, for the oxidation of formic acid/methanol and for the hydrolytic formation of hydrogen from ammonia borane. The work demonstrates that the solution phase-based “bottom-up” synthesis is a reliable approach to highly efficient NP catalyst for practical catalytic applications.
报告人简介:
Professor Sun received his Ph.D. degree in Chemistry from Brown University in 1996. He was a postdoctoral fellow from 1996-1998 and a research staff member from 1998-2004 at the IBM T. J. Watson Research Center. He joined the Chemistry Department of Brown University as a tenured Associate Professor in 2005 and was promoted to full Professor in 2007. He has been the Associate Director of Brown's Institute for Molecular and Nanoscale Innovation since 2008.