金属纳米颗粒催化剂负载金属氧化物团簇。

Metal nanoparticle catalysts decorated with metal oxide clusters.

机构信息

Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL 60208-3120, USA.

出版信息

Chem Commun (Camb). 2012 Oct 18;48(81):10096-8. doi: 10.1039/c2cc34885c.

Abstract

Au nanoparticles decorated with mononuclear Ti-oxo units dispersed in silica clusters were formed by activating Au nanoparticles (~2 nm) stabilized with Ti- and amine-functionalized siloxane oligomers. These Au nanoparticles were active catalysts for selective oxidation of propane to acetone, and the activity increased with increasing Ti density.

摘要

担载于分散在硅氧烷簇中的单核钛氧单元的金纳米粒子是通过活化由 Ti 和胺官能化硅氧烷齐聚物稳定的约 2nm 的金纳米粒子制备得到的。这些金纳米粒子是丙烷选择性氧化为丙酮的活性催化剂，并且活性随 Ti 密度的增加而增加。