Shape- and Size-Controlled Synthesis in Hard Templates: Sophisticated Chemical Reduction for Mesoporous Monocrystalline Platinum Nanoparticles
- 30 August 2011
- journal article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 133 (37), 14526-14529
- https://doi.org/10.1021/ja2058617
Abstract
Here we report a novel hard-templating strategy for the synthesis of mesoporous monocrystalline Pt nanoparticles (NPs) with uniform shapes and sizes. Mesoporous Pt NPs were successfully prepared through controlled chemical reduction using ascorbic acid by employing 3D bicontinuous mesoporous silica (KIT-6) and 2D mesoporous silica (SBA-15) as a hard template. The particle size could be controlled by changing the reduction time. Interestingly, the Pt replicas prepared from KIT-6 showed polyhedral morphology. The single crystallinity of the Pt fcc structure coherently extended over the whole particle.Keywords
This publication has 41 references indexed in Scilit:
- Aqueous Colloidal Mesoporous Nanoparticles with Ethenylene-Bridged Silsesquioxane FrameworksJournal of the American Chemical Society, 2011
- Ordered mesoporous silica nanoparticles with and without embedded iron oxide nanoparticles: structure evolution during synthesisJournal of Materials Chemistry, 2010
- Facile Synthesis of Monodisperse Spherical MCM-48 Mesoporous Silica Nanoparticles with Controlled Particle SizeChemistry of Materials, 2010
- Uniform Mesoporous Dye-Doped Silica Nanoparticles Decorated with Multiple Magnetite Nanocrystals for Simultaneous Enhanced Magnetic Resonance Imaging, Fluorescence Imaging, and Drug DeliveryJournal of the American Chemical Society, 2009
- Multiple Core−Shell Functionalized Colloidal Mesoporous Silica NanoparticlesJournal of the American Chemical Society, 2009
- On the Controllable Soft-Templating Approach to Mesoporous SilicatesChemical Reviews, 2007
- Nanoscale Materials with Mesostructured InteriorsAdvanced Materials, 2001
- Ordered mesoporous molecular sieves synthesized by a liquid-crystal template mechanismNature, 1992
- Trimethylsilyl Derivatives of Alkyltrimethylammonium–Kanemite Complexes and Their Conversion to Microporous SiO2 MaterialsBulletin of the Chemical Society of Japan, 1990
- The Preparation of Alkyltrimethylammonium–Kanemite Complexes and Their Conversion to Microporous MaterialsBulletin of the Chemical Society of Japan, 1990