Synthesis strategy for protected metal nanoparticles

Natalie A. Ray, Richard P. Van Duyne, Peter C Stair

Research output: Contribution to journalArticle

34 Citations (Scopus)

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 languageEnglish
Pages (from-to)7748-7756
Number of pages9
JournalJournal of Physical Chemistry C
Volume116
Issue number14
DOIs
Publication statusPublished - Apr 12 2012

Fingerprint

Metal nanoparticles
Atomic layer deposition
nanoparticles
Nanoparticles
synthesis
atomic layer epitaxy
ethylenediamine
metals
Carbon Monoxide
Acetonitrile
Oxides
Fourier transform infrared spectroscopy
Metals
acetonitrile
metal oxides
Adsorption
Catalysts
reflectance
catalysts
adsorption

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 journalArticle

Ray, Natalie A. ; Van Duyne, Richard P. ; Stair, Peter C. / Synthesis strategy for protected metal nanoparticles. In: Journal of Physical Chemistry C. 2012 ; Vol. 116, No. 14. pp. 7748-7756.
@article{d3df28e02f094948a423facc7e21c461,
title = "Synthesis strategy for protected metal nanoparticles",
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.",
author = "Ray, {Natalie A.} and {Van Duyne}, {Richard P.} and Stair, {Peter C}",
year = "2012",
month = "4",
day = "12",
doi = "10.1021/jp210688z",
language = "English",
volume = "116",
pages = "7748--7756",
journal = "Journal of Physical Chemistry C",
issn = "1932-7447",
publisher = "American Chemical Society",
number = "14",

}

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

UR - http://www.scopus.com/inward/citedby.url?scp=84859772484&partnerID=8YFLogxK

U2 - 10.1021/jp210688z

DO - 10.1021/jp210688z

M3 - Article

AN - SCOPUS:84859772484

VL - 116

SP - 7748

EP - 7756

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

SN - 1932-7447

IS - 14

ER -