TY - JOUR
T1 - Preparation of Nanoscale Platinum(0) Clusters in Glassy Carbon and Their Catalytic Activity
AU - Hutton, Howard D.
AU - Pocard, Nicolas L.
AU - Alsmeyer, Daniel C.
AU - Schueller, Olivier J.A.
AU - Spontak, Richard J.
AU - Huston, Michael E.
AU - Huang, Wenhua
AU - McCreery, Richard L.
AU - Neenan, Thomas X.
AU - Callstrom, Matthew R.
PY - 1993
Y1 - 1993
N2 - We have found that the incorporation of platinum at the molecular level in carbon precursors, poly(phenylene-1,3-diacetylene) and poly(1,2,3,5-tetrafluorophenylene-1,3-diacetylene), followed by thermolysis at relatively low temperatures (600 °C), results in the formation of conductive, dimensionally stable carbon matrices containing nanoscale crystalline platinum particles. The size of the clusters generated in the carbon solids can be controlled by the platinum loading level in the carbon precursors. The platinum clusters possess a narrow size distribution with average diameters from 8 to 19 Å. The exchange current density of the materials for the hydrogen evolution reaction correlates with the number of vertex sites for the clusters with the highest efficiency found for the smallest clusters. The materials also exhibit excellent catalytic activity for the reduction of dioxygen with a response similar to that found for polycrystalline platinum.
AB - We have found that the incorporation of platinum at the molecular level in carbon precursors, poly(phenylene-1,3-diacetylene) and poly(1,2,3,5-tetrafluorophenylene-1,3-diacetylene), followed by thermolysis at relatively low temperatures (600 °C), results in the formation of conductive, dimensionally stable carbon matrices containing nanoscale crystalline platinum particles. The size of the clusters generated in the carbon solids can be controlled by the platinum loading level in the carbon precursors. The platinum clusters possess a narrow size distribution with average diameters from 8 to 19 Å. The exchange current density of the materials for the hydrogen evolution reaction correlates with the number of vertex sites for the clusters with the highest efficiency found for the smallest clusters. The materials also exhibit excellent catalytic activity for the reduction of dioxygen with a response similar to that found for polycrystalline platinum.
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U2 - 10.1021/cm00036a010
DO - 10.1021/cm00036a010
M3 - Article
AN - SCOPUS:0001723066
SN - 0897-4756
VL - 5
SP - 1727
EP - 1738
JO - Chemistry of Materials
JF - Chemistry of Materials
IS - 12
ER -