Platinum nanoparticles in suspension are as efficient as Karstedt's complex for alkene hydrosilylation
Platinum nanoparticles in suspension are as efficient as Karstedt's complex for alkene hydrosilylation
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DOI：
10.1039/c5cc05675f
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发表时间：
2015-01-01
影响因子：
4.9
通讯作者：
Thieuleux, Chloe
中科院分区：
文献类型：
--
作者：
Galeandro-Diamant, Thomas;Zanota, Marie-Line;Thieuleux, Chloe
已使用直径为2nm的单分散铂纳米颗粒的胶体悬浮液催化1-辛烯与聚甲基氢硅氧烷的硅氢加成反应。发现纳米颗粒与Karstedt络合物一样有效，表明在氢化硅烷化反应期间从均相物质形成胶体不一定是失活途径。这些结果也重新引发了关于Karstedt复合物在催化过程中是真正均匀的还是胶体的争论。
Colloidal suspensions of monodisperse platinum nanoparticles of 2 nm diameter have been used to catalyze the hydrosilylation of 1-octene with a polymethylhydrosiloxane. The nanoparticles were found to be as efficient as Karstedt's complex, showing that colloid formation from homogeneous species during hydrosilylation reactions is not necessarily a deactivation pathway. These results also reactivated the debate on whether Karstedt's complex was truly homogeneous or colloidal during catalysis.