Abstract
A method for synthesizing metal nanoparticle catalysts with a structured environment using atomic layer deposition (ALD) has been developed. The method involves growing uniform, dispersed Pd nanoparticles, protecting the particles with a blocking agent, growing a metal oxide structure around the nanoparticle using ALD, and removing the blocking agent. Using CO adsorption and diffuse reflectance infrared Fourier transform spectroscopy, possible blocking agents for metal nanoparticles have been evaluated based on the ability of CO to adsorb to the blocking agent-Pd nanoparticle complex. Ethylenediamine and decanethiol were found to be effective blocking agents, while acetonitrile, 1-(3-mercapto)propyl-3,5,7,9,11,13,15-isobutylpentacyclo[9.5.1.1 3,9.1 5,15.1 7,13]octasiloxane, and hexafluoroacetylacetonate were less effective. Octadecanethiol was proven to be effective in protecting Pd nanoparticles during Al 2O 3 ALD.
| Original language | English |
|---|---|
| Pages (from-to) | 7748-7756 |
| Number of pages | 9 |
| Journal | Journal of Physical Chemistry C |
| Volume | 116 |
| Issue number | 14 |
| DOIs | |
| Publication status | Published - Apr 12 2012 |
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ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Electronic, Optical and Magnetic Materials
- Surfaces, Coatings and Films
- Energy(all)
Cite this
Synthesis strategy for protected metal nanoparticles. / Ray, Natalie A.; Van Duyne, Richard P.; Stair, Peter C.
In: Journal of Physical Chemistry C, Vol. 116, No. 14, 12.04.2012, p. 7748-7756.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Synthesis strategy for protected metal nanoparticles
AU - Ray, Natalie A.
AU - Van Duyne, Richard P.
AU - Stair, Peter C
PY - 2012/4/12
Y1 - 2012/4/12
N2 - A method for synthesizing metal nanoparticle catalysts with a structured environment using atomic layer deposition (ALD) has been developed. The method involves growing uniform, dispersed Pd nanoparticles, protecting the particles with a blocking agent, growing a metal oxide structure around the nanoparticle using ALD, and removing the blocking agent. Using CO adsorption and diffuse reflectance infrared Fourier transform spectroscopy, possible blocking agents for metal nanoparticles have been evaluated based on the ability of CO to adsorb to the blocking agent-Pd nanoparticle complex. Ethylenediamine and decanethiol were found to be effective blocking agents, while acetonitrile, 1-(3-mercapto)propyl-3,5,7,9,11,13,15-isobutylpentacyclo[9.5.1.1 3,9.1 5,15.1 7,13]octasiloxane, and hexafluoroacetylacetonate were less effective. Octadecanethiol was proven to be effective in protecting Pd nanoparticles during Al 2O 3 ALD.
AB - A method for synthesizing metal nanoparticle catalysts with a structured environment using atomic layer deposition (ALD) has been developed. The method involves growing uniform, dispersed Pd nanoparticles, protecting the particles with a blocking agent, growing a metal oxide structure around the nanoparticle using ALD, and removing the blocking agent. Using CO adsorption and diffuse reflectance infrared Fourier transform spectroscopy, possible blocking agents for metal nanoparticles have been evaluated based on the ability of CO to adsorb to the blocking agent-Pd nanoparticle complex. Ethylenediamine and decanethiol were found to be effective blocking agents, while acetonitrile, 1-(3-mercapto)propyl-3,5,7,9,11,13,15-isobutylpentacyclo[9.5.1.1 3,9.1 5,15.1 7,13]octasiloxane, and hexafluoroacetylacetonate were less effective. Octadecanethiol was proven to be effective in protecting Pd nanoparticles during Al 2O 3 ALD.
UR - http://www.scopus.com/inward/record.url?scp=84859772484&partnerID=8YFLogxK
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U2 - 10.1021/jp210688z
DO - 10.1021/jp210688z
M3 - Article
VL - 116
SP - 7748
EP - 7756
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
SN - 1932-7447
IS - 14
ER -