SBA-15 supported Pd and PdO nanoparticles have been synthesized and compared in three different solvents, ethanol (EtOH), tetrahydrofuran (THF), and supercritical carbon dioxide (scCO 2 ). The particle size distribution and dispersion are strongly influenced by the nature of solvents. When the impre
Selective Synthesis of Pd Nanoparticles in Complementary Micropores of SBA-15.
β Scribed by Igor Yuranov; Lioubov Kiwi-Minsker; Philippe Buffat; Albert Renken
- Publisher
- John Wiley and Sons
- Year
- 2004
- Weight
- 54 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0931-7597
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β¦ Synopsis
Abstract
For Abstract see ChemInform Abstract in Full Text.
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Various methods proposed for preparing nanoparticles within porous matrices involve generally the impregnation of the matrix with a solution of precursors followed by reduction based on chemical, thermal, radiolytic, or photochemical process. In most cases, the amount of solution impregnated is smal
Al-SBA-15 supports were prepared by post-synthesis alumination in aqueous solution of a pure silica SBA-15 material. The effects of the aluminium concentration [Al], and of the hydrolysis ratio h 7+ , aluminium polymers) in the solution were examined. Depending on h and [Al], samples with various Si