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Polydopamine Spheres as Active Templates for Convenient Synthesis of Various Nanostructures
Author(s) -
Yan Jian,
Yang Liping,
Lin MengFang,
Ma Jan,
Lu Xuehong,
Lee Pooi See
Publication year - 2013
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201201064
Subject(s) - template , nanostructure , materials science , dispersity , spheres , nanotechnology , fabrication , nanoparticle , solvent , copolymer , template method pattern , one step , chemical engineering , chemistry , polymer chemistry , polymer , organic chemistry , composite material , physics , medicine , alternative medicine , pathology , astronomy , engineering
In this work, monodisperse polydopamine (PDA) spheres with tunable diameters have been synthesized through a facile and low cost method using a deionized water and alcohol mixed solvent. The PDA spheres possess surface functional groups (–OH, –NH 2 ), exhibiting an extraordinary versatile active nature. It is demonstrated that the PDA spheres could serve as an active template for the convenient synthesis of various nanostructures, e.g., MnO 2 hollow spheres or PDA/Fe 3 O 4 and PDA/Ag core/shell nanostructures. No surface modification or special treatment is required for the synthesis of these nanostructures, which makes the fabrication process simple and very convenient. The novel application of PDA/Fe 3 O 4 spheres as fillers in nanocomposites for high‐performance capacitors is demonstrated, indicating a promising practicality. The PDA spheres provide a new general platform not only for the facile assembly of nanostructures but also a green synthetic template for practical applications.