三 (羟甲基) 氨基甲烷改性 SiO< sub> 2</sub> 固载钯纳米粒子: 合成, 表征及其催化 Heck 偶联反应活性

Abdol R Hajipour, Ghobad Azizi

2014/5/26

催化学报

0-0

Metal nanoparticles have attracted attention in the field of catalysis because they can 
catalyze many organic reactions effectively as a result of their high surface area to volume 
ratio [1]. However, these naked nanoparticles tend to aggregate to form larger metal 
particles because of the effect of high surface energy, resulting in decreased catalytic 
activity. A useful way of preventing agglomeration is to immobilize the metal nanopar‐ticles 
on suitable supports, and many methods have been de‐veloped for this purpose [2]. ...