343462 Conversion Of Solar Into Chemical Energy On Plasmonic Metal Nanostructures

Thursday, November 7, 2013: 1:10 PM
Imperial A (Hilton)
Marimuthu Andiappan1, Phillip Christopher2, Hongliang Xin1 and Suljo Linic1, (1)Department of Chemical Engineering, University of Michigan, Ann Arbor, MI, (2)Department of Chemical and Environmental Engineering, University of California, Riverside, Riverside, CA

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.

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