Please use this identifier to cite or link to this item: http://dspace.aiub.edu:8080/jspui/handle/123456789/1145
Title: Effect of pHs on the structure evolution of platinum nanoclusters and their surface plasmon resonance properties
Authors: Ullah, Md. Habib
Moon, Haram
Ha, Chang-Sik
Keywords: Dendrites Chains; Morphology; Optical Properties; Platinum Nanoclusters; Surface Plasmon Resonance; Variation in pHs
Issue Date: 2021
Publisher: American Scientific Publishers
Citation: 1
Abstract: Multi-structured platinum nanoclusters have been prepared through a one-step aqueous synthetic process by controlling pHs. The included structures are closely packed 3-dimensional (3D) dendrites, loosely packed 3D dendrites, short-order dendritic chains, long-order dendritic chains, flatten nanoclusters and monodisperse nanoparticles. The high resolution transmission electron microscopy images (HRTEM) display that the nanoclusters with a variety of structures are filled with grains of average size ∼2.0 nm. The images of the nanoclusters demonstrated that Pt nanoparticles were not fused to each other, but their aggregations were separated by cetyltrimethylammonium bromide (CTAB). The as-prepared Pt nanomaterials were studied by UV-visible absorption spectroscopy to identify their surface plasmon resonance (SPR) activities. The structure dependent SPR signals have been observed from 200 nm–800 nm.
URI: http://dspace.aiub.edu:8080/jspui/handle/123456789/1145
ISSN: ISSN: 1533-4880 (Print); EISSN: 1533-4899 (Online)
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