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Rapid microwave synthesis and optical activity of highly crystalline platinum nanocubes

Published online by Cambridge University Press:  14 January 2018

Clare Davis-Wheeler Chin Open the ORCID record for Clare Davis-Wheeler Chin [Opens in a new window] ,
Sara Akbarian-Tefaghi ,
Juana Reconco-Ramirez  and
John B. Wiley
Clare Davis-Wheeler Chin
Affiliation:
Department of Chemistry and Advanced Materials Research Institute, University of New Orleans, New Orleans, LA 70148, USA
Sara Akbarian-Tefaghi
Affiliation:
Department of Chemistry and Advanced Materials Research Institute, University of New Orleans, New Orleans, LA 70148, USA
Juana Reconco-Ramirez
Affiliation:
Department of Chemistry and Advanced Materials Research Institute, University of New Orleans, New Orleans, LA 70148, USA
John B. Wiley*
Affiliation:
Department of Chemistry and Advanced Materials Research Institute, University of New Orleans, New Orleans, LA 70148, USA
*
Address all correspondence to John B. Wiley at [email protected]
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Abstract

We have developed a novel, facile, and reproducible synthesis of highly crystalline oleylamine-capped colloidal platinum nanocubes by microwave (MW) heating. Use of MW heating decreases reaction times, eliminates the need for dangerous reagents [e.g., Fe(CO)5], and gives efficient production of monodispersed 8 nm Pt nanocubes [MW-nanoparticles (NPs)]. We also present a study of the optical properties of these NPs, which to our knowledge has not been previously reported. Absorbance spectra of the MW-NPs show a distinct localized surface plasmon resonance band at 213 nm. This observation could be significant for developments in plasmonic photocatalysis and advanced catalytic materials.

Type
Research Letters
Information
MRS Communications , Volume 8 , Issue 1 , March 2018 , pp. 71 - 78
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Copyright
Copyright © Materials Research Society 2018 

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