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Title: Controlling bimetallic nanostructures by the microemulsion method with subnanometer resolution using a prediction model

Journal Article · · Langmuir
 [1];  [2];  [3];  [4];  [5]
  1. Univ. of Santiago de Compostela, Santiago de Compostela (Spain); Brookhaven National Lab. (BNL), Upton, NY (United States)
  2. Univ. of Vigo, Vigo (Spain)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States)
  4. International Iberian Nanotechnology Lab., Braga (Portugal)
  5. Univ. of Santiago de Compostela, Santiago de Compostela (Spain)
+ Show Author Affiliations

In this study, we present a theoretical model to predict the atomic structure of Au/Pt nanoparticles synthesized in microemulsions. Excellent concordance with the experimental results shows that the structure of the nanoparticles can be controlled at sub-nanometer resolution simply by changing the reactants concentration. The results of this study not only offer a better understanding of the complex mechanisms governing reactions in microemulsions, but open up a simple new way to synthesize bimetallic nanoparticles with ad-hoc controlled nanostructures.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC00112704
OSTI ID:
1214524
Report Number(s):
BNL-108320-2015-JA; R&D Project: MA510MAEA; KC0302010
Journal Information:
Langmuir, Vol. 31, Issue 27; ISSN 0743-7463
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 19 works
Citation information provided by
Web of Science

References (21)

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Recent developments in the application of nanoparticles prepared from w/o microemulsions in heterogeneous catalysis journal August 2008
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On the Structure of Bimetallic Nanoparticles Synthesized in Microemulsions journal October 2009
The Isomerization of Dinitrogen Tetroxide:  O 2 N−NO 2 → ONO−NO 2 journal April 2007
Gold/Platinum Bimetallic Core/Shell Nanoparticles Stabilized by a Fréchet-Type Dendrimer: Preparation and Catalytic Hydrogenations of Phenylaldehydes and Nitrobenzenes journal November 2008
Size effect of Au seeds on structure of Au–Pt bimetallic nanoparticles journal September 2011
Bimetallic nanoparticles—novel materials for chemical and physical applications journal January 1998
Catalytic Pt-on-Au Nanostructures: Why Pt Becomes More Active on Smaller Au Particles journal February 2012
Surface Composition Tuning of Au–Pt Bimetallic Nanoparticles for Enhanced Carbon Monoxide and Methanol Electro-oxidation journal May 2013
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Emulsion-assisted synthesis of monodisperse binary metal nanoparticles journal January 2010
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Enhanced CO Tolerance for Hydrogen Activation in Au−Pt Dendritic Heteroaggregate Nanostructures journal January 2006

Cited By (3)

Understanding the Metal Distribution in Core-Shell Nanoparticles Prepared in Micellar Media journal August 2015
On Metal Segregation of Bimetallic Nanocatalysts Prepared by a One-Pot Method in Microemulsions journal February 2017
On the minimum reactant concentration required to prepare Au/M core-shell nanoparticles by the one-pot microemulsion route journal December 2019

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
microemulsion
sub-nanostructure
bimetallic
simulation
one-pot method