Photo-Chemical Reactions on Plasmonic Metal Nanostructures

We will show that composite photo-catalysts combing plasmonic metallic nanoparticles of noble metals and semiconductor nanostructures exhibit improved photo-chemical activity compared to conventional photo-catalytic materials.^1,2 We will also show that plasmonic silver nanoparticles, optically excited with low intensity visible light, exhibit direct photo-catalytic activity. We will discuss underlying mechanisms associated with these phenomena.^2,3,4 We propose that this new family of photo-catalysts could prove useful for many heterogeneous catalytic processes that cannot be activated using conventional thermal processes on metals or photo-catalytic processes on semiconductors. I will show an example of such a process.⁵

1. D. B. Ingram, S. Linic, JACS, 133, 5202, 2011
2. Suljo Linic, Phillip Christopher and David B., Nature Materials, 10, 911, 2011.
3. Ingram P. Christopher, H. Xin, S. Linic, Nature Chemistry, 3, 467, 2011.
4. P. Christopher, H. Xin, M. Andiappan, S. Linic, Nature Materials, 11, 1044, 2012.