Shape-dependent catalytic activity of platinum nanoparticles in colloidal solution
Title | Shape-dependent catalytic activity of platinum nanoparticles in colloidal solution |
Publication Type | Journal Article |
Year of Publication | 2004 |
Authors | Narayanan, R, EL-Sayed, MA |
Journal | Nano Letters |
Volume | 4 |
Pagination | 1343-1348 |
Date Published | Jul |
ISBN Number | 1530-6984 |
Accession Number | WOS:000222762000033 |
Abstract | The activation energies and the average rate constants are determined in the 298 K-318 K temperature range for the early stages of the nanocatalytic reaction between hexacyanoferrate (111) and thiosulfate ions using 4.8 +/- 0.1 nm tetrahedral, 7.1 +/- 0.2 nm cubic, and 4.9 +/- 0.1 nm "near spherical" nanocrystals. These kinetic parameters are found to correlate with the calculated fraction of surface atoms located on the corners and edges in each size and shape. |
DOI | 10.1021/nl0495256 |