Colloidal metal nanoparticles as a component of designed catalyst

被引:382
作者
Jia, Chun-Jiang [1 ]
Schueth, Ferdi [1 ]
机构
[1] Max Planck Inst Kohlenforsch, D-45470 Mulheim, Germany
关键词
SHAPE-CONTROLLED SYNTHESIS; HIGH-SURFACE-AREA; NANOSTRUCTURED PALLADIUM CLUSTERS; MONODISPERSED PD-NANOPARTICLES; SILICA-SUPPORTED MONODISPERSE; BLODGETT MONOLAYER FORMATION; ELECTRON-TRANSFER REACTION; MESOPOROUS SBA-15 SILICA; SUZUKI COUPLING REACTION; POROUS CARBON SHELL;
D O I
10.1039/c0cp02680h
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Recent advances in the synthesis of collidal metal nanoparticles of controlled sizes and shapes that are relevant for catalyst design are reviewed. Three main methods, based on colloid chemistry techniques in solution, i.e., chemical reduction of metal salt precursors, electrochemical synthesis, and controlled decomposition of organometallic compounds and metal-surfactant complexes, are used to synthesize metal nanoparticles. Their catalytic activity and selectivity depend on the shape, size and composition of the metal nanoparticles, and the support effect, as shown for many reactions in quasi-homogeneous and heterogeneous catalysis. A specially designed type of thermally stable catalysts-"embedded'' metal catalysts, in which metal nanoparticles are isolated by porous support shells so that metal sintering is effectively avoided at high temperatures, are also introduced. The ultilization of pre-prepared colloidal metal nanoparticles with tuned size, shape and composition as components of designed catalysts opens up new field in catalysis.
引用
收藏
页码:2457 / 2487
页数:31
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