✦ LIBER ✦

Influence of Polyethyleneimine Addition on Crystal Size Distribution of Au Nanocrystals

✍ Scribed by T. Mikami; Y. Takayasu; J. Watanabe; I. Hirasawa

Publisher: John Wiley and Sons
Year: 2011
Tongue: English
Weight: 366 KB
Volume: 34
Category: Article
ISSN: 0930-7516
DOI: 10.1002/ceat.201000495

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✦ Synopsis

Abstract

The influence of polyethyleneimine (PEI) addition on the crystal size distribution (CSD) of Au was investigated. PEI is a water‐soluble cationic polyelectrolyte acting as a reducer of AuCl~4~^–^ and a stabilizer of precipitated Au nanocrystals. The CSD can be controlled by the PEI dosage, and an increase in PEI dosage decreased both the size and the size distribution width of the obtained Au nanocrystals. The idea of PEI‐assisted reductive crystallization of Au may be helpful in the production of nanometals by using a simple batch crystallizer.

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