Synthesis of Porous Platinum Nanoparticles


  • This work was supported in part by the U. S. National Science Foundation (NSF CAREER Award, DMR-0449849, and SGER Grant, CTS-0417722), the Department of Energy (DE-FC03-92SF19460) through the Laboratory for Laser Energetics (LLE) and the University of Rochester. We thank LLE for a Horton Fellowship (X.T.) This work made use of Shared Experimental Facilities at the Cornell Center for Materials research (CCMR) supported by the NSF. We thank Prof. Ulrich Wiesner and Mr. Scott Warren for the BET measurement, and Dr. Mick Thomas for running the UHV-STEM. The support of the DOE does not constitute an endorsement by the DOE of the views expressed in this article.


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Playing the platinum card: By means of a self-organization process at low temperature in organic solvent, porous platinum nanoparticles of excellent dispersity have been prepared. The particles are obtained as flowerlike arrays (see TEM image), and their porosity was shown to be similar to other mesoporous Pt systems. The catalytic activity of the nanoparticles is shown to be ≈60 % greater than a commercial Pt catalyst.