Campus Units
Chemistry, Ames Laboratory
Document Type
Article
Publication Version
Accepted Manuscript
Publication Date
2015
Journal or Book Title
Nanoscale
Volume
7
Issue
40
First Page
16721
Last Page
16728
DOI
10.1039/C5NR04614A
Abstract
Metal nanostructures have attracted great attention in various fields due to their tunable properties through precisely tailored sizes, compositions and structures. Using mesoporous silica (mSiO2) as the inorganic capping agent and encapsulated Pt nanoparticles as the seeds, we developed a robust seeded growth method to prepare uniform bimetallic nanoparticles encapsulated in mesoporous silica shells (PtM@mSiO2, M = Pd, Rh, Ni and Cu). Unexpectedly, we found that the inorganic silica shell is able to accommodate an eight-fold volume increase in the metallic core by reducing its thickness. The bimetallic nanoparticles encapsulated in mesoporous silica shells showed enhanced catalytic properties and thermal stabilities compared with those prepared with organic capping agents. This inorganic capping strategy could find a broad application in the synthesis of versatile bimetallic nanostructures with exceptional structural control and enhanced catalytic properties.
Copyright Owner
The Royal Society of Chemistry
Copyright Date
2015
Language
en
File Format
application/pdf
Recommended Citation
Pei, Yuchen; Maligal-Ganesh, Raghu V.; Xiao, Chaoxian; Goh, Tian Wei; Brashler, Kyle; Gustafson, Jeffrey A.; and Huang, Wenyu, "An inorganic capping strategy for the seeded growth of versatile bimetallic nanostructures" (2015). Chemistry Publications. 1025.
https://lib.dr.iastate.edu/chem_pubs/1025
Included in
Inorganic Chemistry Commons, Materials Chemistry Commons, Nanoscience and Nanotechnology Commons
Comments
This is a manuscript of an article published as Pei, Yuchen, Raghu V. Maligal-Ganesh, Chaoxian Xiao, Tian-Wei Goh, Kyle Brashler, Jeffrey A. Gustafson, and Wenyu Huang. "An inorganic capping strategy for the seeded growth of versatile bimetallic nanostructures." Nanoscale 7, no. 40 (2015): 16721-16728. doi: 10.1039/C5NR04614A. Posted with permission.