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Vol. 26 No. 23 (2014)

Copyright (c) 2014 Hoang Minh Ngo1, Phuong Phong Nguyen2, Ngoc Quyen Tran3

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This work is licensed under a Creative Commons Attribution 4.0 International License.

Preparation of Nanoclusters Encapsulating Ultrafine Platinum Nanoparticles

https://doi.org/10.14233/ajchem.2014.17143
Hoang Minh Ngo1
1Department of Food and Chemistry, Lac Hong University, Dongnai Province, Vietnam 2Department of Chemistry, University of Science, Vietnam National University, Ho Chi Minh City, Vietnam 3Institute of Applied Materials Science, Vietnam Academy of Science and Technology, Hochiminh City, Vietnam *Corresponding authors: Tel: +84 1256785648; E-mail: ntpphong@hcmus.edu.vn; tnquyen@iams.vast.vn
Phuong Phong Nguyen2
1Department of Food and Chemistry, Lac Hong University, Dongnai Province, Vietnam 2Department of Chemistry, University of Science, Vietnam National University, Ho Chi Minh City, Vietnam 3Institute of Applied Materials Science, Vietnam Academy of Science and Technology, Hochiminh City, Vietnam *Corresponding authors: Tel: +84 1256785648; E-mail: ntpphong@hcmus.edu.vn; tnquyen@iams.vast.vn
Ngoc Quyen Tran3
1Department of Food and Chemistry, Lac Hong University, Dongnai Province, Vietnam 2Department of Chemistry, University of Science, Vietnam National University, Ho Chi Minh City, Vietnam 3Institute of Applied Materials Science, Vietnam Academy of Science and Technology, Hochiminh City, Vietnam *Corresponding authors: Tel: +84 1256785648; E-mail: ntpphong@hcmus.edu.vn; tnquyen@iams.vast.vn

Corresponding Author(s) : Hoang Minh Ngo1

Asian Journal of Chemistry, Vol. 26 No. 23 (2014)

Abstract

Platinum colloidal solutions have showed potential applications in various fields such as environment, biomedicine, catalysis, electronics, etc. According to a charateristic of poly(vinyl pyrolidone) (PVP) solution in which poly(vinyl pyrrolidone) chains are crosslinked and insoluble at higher temperatures with alkaline medium, we introduce a novel method to prepare nanoclusters like poly(vinyl pyrolidone)-based nanogels containing ultrafine platinum nanoparticles when hexachloroplatinic acid was reduced with mixture of poly(vinyl pyrolidone) and trisodium citrate at higher temperatures in alkaline medium. Formations of platinum nanoparticles and the nanoclusters were investigated under different pH and molecular weight of poly(vinyl pyrolidone). The colloidal solutions were characterized by UV-visible, XRD and TEM. Our results indicated that ultrafine platinum nanoparticles arround 2 nm encapsulated in nanoclusters when the preparation was conducted in alkaline media and platinum nanoparticles were produced at smaller size when lower molecular weight of poly(vinyl pyrrolidone) was used.

Keywords

Platinum nanoparticles Green synthesis Size control.
Minh Ngo1, H., Phong Nguyen2, P., & Quyen Tran3, N. (2014). Preparation of Nanoclusters Encapsulating Ultrafine Platinum Nanoparticles. Asian Journal of Chemistry, 26(23), 8079–8083. https://doi.org/10.14233/ajchem.2014.17143
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