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Template formation of aluminum–magnesium hydroxide nano-branches on linear poly(ethylene imine)

Authors
Journal
Materials Letters
0167-577X
Publisher
Elsevier
Publication Date
Volume
62
Identifiers
DOI: 10.1016/j.matlet.2007.09.042
Keywords
  • Nanomaterials
  • Microstructure
  • Sol–Gel Preparation
  • Electron Microscopy

Abstract

Abstract Linear poly(ethylene imine) (PEI) can self-assemble into fibrous aggregates composed of a crystalline core and a brush-like shell of ethylene imine (EI) segments, and thus can be used as “templates” to prepare a range of inorganic materials. To further illustrate the feasibility of this technique, an investigation of low-temperature formation of nanostructured aluminum–magnesium hydroxide (AMH) on linear PEI “templates” is described, and the corresponding reaction mechanism suggested tentatively. AMH nano-branches were formed after hydrolysis of aluminium and magnesium lactates on PEI, indicating the site-selective deposition process of AMH on surfaces of PEI. The technique reported in this paper could be potentially used to fabricate other nanostructured complex metal oxides.

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