Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 4, 2019
Previous Article Next Article

Template assisted preparation of high surface area macroporous supports with uniform and tunable nanocrystal loadings

Author affiliations

Abstract

The incorporation of catalytic nanocrystals into macroporous support materials has been very attractive due to their increased catalyst mass activity. This increase in catalytic efficiency is attributed in part to the increased surface area to volume ratio of the catalysts and the use of complementary support materials that can enhance their catalytic activity and stability. A uniform and tunable coating of nanocrystals on porous matrices can be difficult to achieve with some techniques such as electrodeposition. More sophisticated techniques for preparing uniform nanocrystal coatings include atomic layer deposition, but it can be difficult to reproduce these processes at commercial scales required for preparing catalyst materials. In this study, catalytic nanocrystals supported on three dimensional (3D) porous structures were prepared. The demonstrated technique utilized scalable approaches for achieving a uniform surface coverage of catalysts through the use of polymeric sacrificial templates. This template assisted technique was demonstrated with a good control over the surface coverage of catalysts, support material composition, and porosities of the support material. A series of regular porous supports were each prepared with a uniform coating of nanocrystals, such as NaYF4 nanocrystals supported by a porous 3D lattice of Ti1−xSixO2, Pt nanocrystals on a 3D porous support of TiO2, Pd nanocrystals on Ni nanobowls, and Pt nanocrystals on 3D assemblies of Au/TiO2 nanobowls. The template assisted preparation of high surface area macroporous supports could be further utilized for optimizing the use of catalytic materials in chemical, electrochemical, and photochemical reactions through increasing their catalytic efficiency and stability.

Graphical abstract: Template assisted preparation of high surface area macroporous supports with uniform and tunable nanocrystal loadings

Back to tab navigation

Supplementary files

Article information


Submitted
24 Sep 2018
Accepted
26 Dec 2018
First published
01 Jan 2019

Nanoscale, 2019,11, 1937-1948
Article type
Paper

Template assisted preparation of high surface area macroporous supports with uniform and tunable nanocrystal loadings

M. T. Y. Paul, B. B. Yee, X. Zhang, E. H. Alford, B. K. Pilapil and B. D. Gates, Nanoscale, 2019, 11, 1937
DOI: 10.1039/C8NR07762B

Social activity

Search articles by author

Spotlight

Advertisements