The Stability of Colloidal Metallic Nanoparticles in Reactive Chemical Environments

化学系的分析和表面化学(ASC)计划将支持佐治亚理工学院穆斯塔法·埃尔·赛义德教授的研究计划。El Sayed教授和他的学生将研究催化活性与位于催化纳米颗粒角落和边缘的原子比例之间的相关性的起源。研究小组将研究纳米催化剂在催化过程中大小和形状变化的机理，并确定观察到的形状和大小变化是否对所有类型的反应都是通用的。研究小组还将调查纳米催化剂的稳定性和回收潜力，如自组装纳米颗粒、吸附在载体上的纳米颗粒、包裹在不同世代树枝状大分子中的纳米颗粒，以及平版印刷制造的纳米催化剂。这项研究可能会导致大大改进的催化剂的开发。它将为催化研究领域的本科生、研究生和博士后研究人员提供绝佳的培训机会，这对美国经济非常重要。

The Analytical and Surface Chemistry (ASC) program of the Division of Chemistry will support the research program of Prof. Mostafa El Sayed of Georgia Institute of Technology. Prof. El Sayed and his students will study the origin of the correlation between the catalytic activity and the fraction of atoms located on the corners and edges of catalytic nanoparticles. The research team will study the mechanism of changes in size and shape of nanocatalysts during catalytic processes and determine whether the observed shape and size changes are general for all types of reactions. The research team will also investigate the stability and recycling potential of nanocatalysts such as self-assembled nanoparticles, nanoparticles adsorbed on supports, nanoparticles encapsulated in dendrimers of different generations, and lithographically fabricated nanocatalysts. The study could lead to development of greatly improved catalysts. It will provide excellent training opportunities to undergraduate students, graduate students and postdoctoral researchers in the research field of catalysis, which is of great importance to the US economy.