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Nanoporous Ag-Au Bimetallic Triangular Nanoprisms Synthesized by Galvanic Replacement for Plasmonic Applications
Joint Authors
Qian, Hongmei
Anwer, Shoaib
Bharath, G.
Iqbal, Shahid
Chen, Lijuan
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-06-27
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Galvanic replacement is a versatile method of converting simple noble metallic nanoparticles into structurally more complex porous multimetallic nanostructures.
In this work, roughened nanoporous Ag-Au bimetallic triangular nanoprisms (TNPs) are synthesized by galvanic replacement between smooth Ag triangular plates and AuCl4− ions.
Transmission electron microscope and the elementary mapping measurements show that numerous protrusions and pores are formed on the {111} facets, and Ag and Au atoms are homogeneously distributed on the triangular plates.
Due to the additional “hot spots” generated by the surface plasmon coupling of the newly formed protrusions and pores, the roughened nanoporous Ag-Au TNP aggregates demonstrate a higher surface-enhanced Raman scattering enhancement factor (seven times larger) and better reproducibility than that of smooth Ag triangular particle aggregates.
These synthesized roughened nanoporous Ag-Au bimetallic TNPs are a promising candidate for the applications in analytical chemistry, biological diagnostics, and photothermal therapy due to their excellent plasmonic performances and good biocompatibility.
American Psychological Association (APA)
Qian, Hongmei& Anwer, Shoaib& Bharath, G.& Iqbal, Shahid& Chen, Lijuan. 2018. Nanoporous Ag-Au Bimetallic Triangular Nanoprisms Synthesized by Galvanic Replacement for Plasmonic Applications. Journal of Nanomaterials،Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1193702
Modern Language Association (MLA)
Qian, Hongmei…[et al.]. Nanoporous Ag-Au Bimetallic Triangular Nanoprisms Synthesized by Galvanic Replacement for Plasmonic Applications. Journal of Nanomaterials No. 2018 (2018), pp.1-7.
https://search.emarefa.net/detail/BIM-1193702
American Medical Association (AMA)
Qian, Hongmei& Anwer, Shoaib& Bharath, G.& Iqbal, Shahid& Chen, Lijuan. Nanoporous Ag-Au Bimetallic Triangular Nanoprisms Synthesized by Galvanic Replacement for Plasmonic Applications. Journal of Nanomaterials. 2018. Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1193702
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1193702