Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 112, Issue 27, Pages 10068-10072Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp801845q
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We report the synthesis of metallic nanostructures by a chemical fluid deposition method using carbon dioxide supercritical fluid as the reaction medium. Ordered platinum nanowires were molded out from a mesoporous silica template, SBA-15, with a pore channel diameter of 7 nm. A solubility study of the platinum precursor, platinum(II) dimethylcyclooctadiene, in the supercritical carbon dioxide was carried out to obtain a phase diagram in order to optimize the operating parameters required for the metal deposition process. High-purity and uniform nanowires with large aspect ratios were obtained at moderate temperatures and pressures.
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