Au20Pd1@SiO2 nanoreactors highly effective in CO oxidation
by Brenda Acosta; Viridiana Evangelista; Serguei Miridonov; Sergio Fuentes; Elena Smolentseva; Andrey Simakov
International Journal of Nanotechnology (IJNT), Vol. 13, No. 1/2/3, 2016

Abstract: Au cores partially covered with Pd (molar ratio Au20:Pd1) were homogeneously encapsulated into silica shells to form AuPd@SiO2 nanoreactors via usage of high polyvinylpyrrolidone (PVP) concentration and prolonged time of nanoparticle treatment with PVP before bimetallic nanoparticle encapsulation. The presence of both metals in the core of the nanoreactors was confirmed by means of STEM-EDS, UV-Vis and XPS. The AuPd@SiO2 nanoreactors showed enhanced catalytic activity in CO oxidation compared with that for reference Au@SiO2 nanoreactors. The developed experimental procedure for successful encapsulation of bimetallic nanoparticles into silica is relevant for the design of gold-based nanoreactors with modified cores.

Online publication date: Thu, 04-Feb-2016

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Nanotechnology (IJNT):
Login with your Inderscience username and password:

    Username:        Password:         

Forgotten your password?


Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com