Back to results
University of Mississippi
Effective tuning of bimetallic composition of gold-copper nanomolecules and the emergence of plasmon-like feature in optical spectra
Abstract
dc:description.abstractAu144-xCux(SR)60 alloy nanomolecules were synthesized and characterized by using ESI-MS to atomic precision. A maximum of 23 copper atoms replace the gold atoms; when the number of copper atoms is higher than eight, a surface plasmon-like peak appears at ∼520 nm. Based on the fundamental, elemental properties of Au and Cu, we predict a mixed atomic ordering and incorporation into the Au12 and Au 42 shells of the proposed icosahedral structured model. Alloy nanomolecules reported here could have potential applications in the field of catalysis and optical sensors.
Degree
thesis:*- Name thesis:degree_name
- M.S. in Chemistry
- Level thesis:degree_level
- Thesis
- Discipline thesis:degree_discipline
- Chemistry and Biochemistry
- Year dc:date.available
- 2015
Author and committee
dc:creator, dc:contributor.*- Author dc:creator
-
- Dharmaratne, Asantha Champika
- Contributors dc:contributor
-
- Amala Dass
- Steven R. Davis
- James Cizdziel
Subjects
dc:subject × 6Identifiers
dc:identifier.*- Repository record dc:identifier
- https://egrove.olemiss.edu/etd/1287
- OAI identifier oai:identifier
- oai:egrove.olemiss.edu:etd-2286