Minimizing Formaldehyde Use in the Synthesis of Gold−Silver Core−Shell Nanoparticles

Authors

Christopher B. Norris, University of Colorado
Paul R. Joseph, Portland State University
Marilyn R. Mackiewicz, Portland State UniversityFollow
Scott M. Reed, University of ColoradoFollow

Published In

Chemistry of Materials

Document Type

Citation

Publication Date

2010

Abstract

The majority of formaldehyde used in the synthesis of gold−silver core−shell nanoparticles does not function as a reducing agent. Instead, the formaldehyde reacts with ammonium hydroxide to form a polymer, which binds to the gold nanoparticle cores and results in an asymmetric coating of silver. The resultant nanoparticles absorb in the near infrared. Understanding this mechanism allowed us to decrease the formaldehyde used 100-fold, providing a greener synthesis.

Description

Copyright © 2010 American Chemical Society

Locate the Document

https://doi.org/10.1021/cm9035693

DOI

10.1021/cm9035693

Persistent Identifier

http://archives.pdx.edu/ds/psu/20520

Citation Details

Christopher B., N., Paul R., J., Marilyn R., M., & Scott M., R. (2010). Minimizing Formaldehyde Use in the Synthesis of Gold−Silver Core−Shell Nanoparticles. Chemistry Of Materials, 22(12), 3637-3645.