PEI-assisted preparation of Au nanoparticles via reductive crystallization process

Takashi Mikami; Yuta Takayasu; Izumi Hirasawa

doi:10.1016/j.cherd.2009.08.013

PEI-assisted preparation of Au nanoparticles via reductive crystallization process

Takashi Mikami^*, Yuta Takayasu, Izumi Hirasawa

^*Corresponding author for this work

School of Advanced Science and Engineering

Research output: Contribution to journal › Article › peer-review

24 Citations (Scopus)

Abstract

Nano-sized gold particles were prepared in a solution containing polyethylenimine (PEI) utilizing a batch reactor. PEI acts as a reducing agent as well as a stabilizing agent of nanoparticles. The effects of initial concentration of PEI on the mean particle diameter, coefficient of variation (C.V.), growth rate, nucleation rate and the number of nuclei were studied. The particle diameter of gold decreased markedly with increasing initial concentration of PEI, from 3.3 μm to a minimum value of about 5 nm. The observed decrease of particle diameter was considered to be caused by the growth-inhibiting effect of PEI, which affects the conclusive number of nuclei.

Original language	English
Pages (from-to)	1248-1251
Number of pages	4
Journal	Chemical Engineering Research and Design
Volume	88
Issue number	9
DOIs	https://doi.org/10.1016/j.cherd.2009.08.013
Publication status	Published - 2010 Sept 1

Keywords

Nanoparticles
Polyelectrolyte additive
Reductive crystallization

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)

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10.1016/j.cherd.2009.08.013

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title = "PEI-assisted preparation of Au nanoparticles via reductive crystallization process",

abstract = "Nano-sized gold particles were prepared in a solution containing polyethylenimine (PEI) utilizing a batch reactor. PEI acts as a reducing agent as well as a stabilizing agent of nanoparticles. The effects of initial concentration of PEI on the mean particle diameter, coefficient of variation (C.V.), growth rate, nucleation rate and the number of nuclei were studied. The particle diameter of gold decreased markedly with increasing initial concentration of PEI, from 3.3 μm to a minimum value of about 5 nm. The observed decrease of particle diameter was considered to be caused by the growth-inhibiting effect of PEI, which affects the conclusive number of nuclei.",

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doi = "10.1016/j.cherd.2009.08.013",

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T1 - PEI-assisted preparation of Au nanoparticles via reductive crystallization process

AU - Mikami, Takashi

AU - Takayasu, Yuta

AU - Hirasawa, Izumi

PY - 2010/9/1

Y1 - 2010/9/1

N2 - Nano-sized gold particles were prepared in a solution containing polyethylenimine (PEI) utilizing a batch reactor. PEI acts as a reducing agent as well as a stabilizing agent of nanoparticles. The effects of initial concentration of PEI on the mean particle diameter, coefficient of variation (C.V.), growth rate, nucleation rate and the number of nuclei were studied. The particle diameter of gold decreased markedly with increasing initial concentration of PEI, from 3.3 μm to a minimum value of about 5 nm. The observed decrease of particle diameter was considered to be caused by the growth-inhibiting effect of PEI, which affects the conclusive number of nuclei.

AB - Nano-sized gold particles were prepared in a solution containing polyethylenimine (PEI) utilizing a batch reactor. PEI acts as a reducing agent as well as a stabilizing agent of nanoparticles. The effects of initial concentration of PEI on the mean particle diameter, coefficient of variation (C.V.), growth rate, nucleation rate and the number of nuclei were studied. The particle diameter of gold decreased markedly with increasing initial concentration of PEI, from 3.3 μm to a minimum value of about 5 nm. The observed decrease of particle diameter was considered to be caused by the growth-inhibiting effect of PEI, which affects the conclusive number of nuclei.

KW - Nanoparticles

KW - Polyelectrolyte additive

KW - Reductive crystallization

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DO - 10.1016/j.cherd.2009.08.013

M3 - Article

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EP - 1251

JO - Chemical Engineering Research and Design

JF - Chemical Engineering Research and Design

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ER -

PEI-assisted preparation of Au nanoparticles via reductive crystallization process

Abstract

Keywords

ASJC Scopus subject areas

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