Size-controlled synthesis of gold nanoparticles from bulk gold substrates by sonoelectrochemical methods

Yu Chuan Liu, Li Huei Lin, Wen H. Chiu

研究成果: 雜誌貢獻文章

76 引文 (Scopus)

摘要

Size-controlled gold nanoparticles, ranging from 2 to 15 nm in diameter, were first prepared from gold substrates in 0.1 N HCl aqueous solutions without the addition of any stabilizers by sonoelectrochemical methods. First, an Au substrate was cycled in a deoxygenated aqueous solution containing 0.1 N HCl from -0.28 to + 1.22 V vs Ag/AgCl at 500 mV/s with 100 scans. The durations at the cathodic and anodic vertexes are 10 and 5 s, respectively. After this process, Au- and Cl-containing complexes were left in the solution. The Au working electrode was then immediately replaced by a Pt electrode, and cathodic over-potentials of 0.2, 0.4, and 0.6 V from the open circuit potential (OCP) of ca. 0.82 V vs Ag/AgCl were applied under sonification to synthesize Au nanoparticles. The prepared nanoparticles increase in size from 2 to 15 nm with the increase of the cathodic overpotential applied from 0.2 to 0.6 V. Furthermore, the ratio of Au nanoparticles to Aucontaining nanocomplexes in solutions can be controlled by adjusting the sonoelectrochemical reduction time.

原文英語
頁(從 - 到)19237-19240
頁數4
期刊Journal of Physical Chemistry B
108
發行號50
DOIs
出版狀態已發佈 - 十二月 16 2004
對外發佈Yes

指紋

Gold
gold
Nanoparticles
nanoparticles
Substrates
synthesis
aqueous solutions
Electrodes
electrodes
apexes
adjusting
Networks (circuits)

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

引用此文

Size-controlled synthesis of gold nanoparticles from bulk gold substrates by sonoelectrochemical methods. / Liu, Yu Chuan; Lin, Li Huei; Chiu, Wen H.

於: Journal of Physical Chemistry B, 卷 108, 編號 50, 16.12.2004, p. 19237-19240.

研究成果: 雜誌貢獻文章

@article{6e21bcd7b8754e2aa2762eb2ddc5c536,
title = "Size-controlled synthesis of gold nanoparticles from bulk gold substrates by sonoelectrochemical methods",
abstract = "Size-controlled gold nanoparticles, ranging from 2 to 15 nm in diameter, were first prepared from gold substrates in 0.1 N HCl aqueous solutions without the addition of any stabilizers by sonoelectrochemical methods. First, an Au substrate was cycled in a deoxygenated aqueous solution containing 0.1 N HCl from -0.28 to + 1.22 V vs Ag/AgCl at 500 mV/s with 100 scans. The durations at the cathodic and anodic vertexes are 10 and 5 s, respectively. After this process, Au- and Cl-containing complexes were left in the solution. The Au working electrode was then immediately replaced by a Pt electrode, and cathodic over-potentials of 0.2, 0.4, and 0.6 V from the open circuit potential (OCP) of ca. 0.82 V vs Ag/AgCl were applied under sonification to synthesize Au nanoparticles. The prepared nanoparticles increase in size from 2 to 15 nm with the increase of the cathodic overpotential applied from 0.2 to 0.6 V. Furthermore, the ratio of Au nanoparticles to Aucontaining nanocomplexes in solutions can be controlled by adjusting the sonoelectrochemical reduction time.",
author = "Liu, {Yu Chuan} and Lin, {Li Huei} and Chiu, {Wen H.}",
year = "2004",
month = "12",
day = "16",
doi = "10.1021/jp046866z",
language = "English",
volume = "108",
pages = "19237--19240",
journal = "Journal of Physical Chemistry B Materials",
issn = "1520-6106",
publisher = "American Chemical Society",
number = "50",

}

TY - JOUR

T1 - Size-controlled synthesis of gold nanoparticles from bulk gold substrates by sonoelectrochemical methods

AU - Liu, Yu Chuan

AU - Lin, Li Huei

AU - Chiu, Wen H.

PY - 2004/12/16

Y1 - 2004/12/16

N2 - Size-controlled gold nanoparticles, ranging from 2 to 15 nm in diameter, were first prepared from gold substrates in 0.1 N HCl aqueous solutions without the addition of any stabilizers by sonoelectrochemical methods. First, an Au substrate was cycled in a deoxygenated aqueous solution containing 0.1 N HCl from -0.28 to + 1.22 V vs Ag/AgCl at 500 mV/s with 100 scans. The durations at the cathodic and anodic vertexes are 10 and 5 s, respectively. After this process, Au- and Cl-containing complexes were left in the solution. The Au working electrode was then immediately replaced by a Pt electrode, and cathodic over-potentials of 0.2, 0.4, and 0.6 V from the open circuit potential (OCP) of ca. 0.82 V vs Ag/AgCl were applied under sonification to synthesize Au nanoparticles. The prepared nanoparticles increase in size from 2 to 15 nm with the increase of the cathodic overpotential applied from 0.2 to 0.6 V. Furthermore, the ratio of Au nanoparticles to Aucontaining nanocomplexes in solutions can be controlled by adjusting the sonoelectrochemical reduction time.

AB - Size-controlled gold nanoparticles, ranging from 2 to 15 nm in diameter, were first prepared from gold substrates in 0.1 N HCl aqueous solutions without the addition of any stabilizers by sonoelectrochemical methods. First, an Au substrate was cycled in a deoxygenated aqueous solution containing 0.1 N HCl from -0.28 to + 1.22 V vs Ag/AgCl at 500 mV/s with 100 scans. The durations at the cathodic and anodic vertexes are 10 and 5 s, respectively. After this process, Au- and Cl-containing complexes were left in the solution. The Au working electrode was then immediately replaced by a Pt electrode, and cathodic over-potentials of 0.2, 0.4, and 0.6 V from the open circuit potential (OCP) of ca. 0.82 V vs Ag/AgCl were applied under sonification to synthesize Au nanoparticles. The prepared nanoparticles increase in size from 2 to 15 nm with the increase of the cathodic overpotential applied from 0.2 to 0.6 V. Furthermore, the ratio of Au nanoparticles to Aucontaining nanocomplexes in solutions can be controlled by adjusting the sonoelectrochemical reduction time.

UR - http://www.scopus.com/inward/record.url?scp=10944228203&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=10944228203&partnerID=8YFLogxK

U2 - 10.1021/jp046866z

DO - 10.1021/jp046866z

M3 - Article

AN - SCOPUS:10944228203

VL - 108

SP - 19237

EP - 19240

JO - Journal of Physical Chemistry B Materials

JF - Journal of Physical Chemistry B Materials

SN - 1520-6106

IS - 50

ER -