Electrochemical mechanism of silver nanoprisms transformation in aqueous solutions containing the halide ions

被引：9

作者：

Abkhalimov, E. V. ^{[1
]}

Timofeev, A. A. ^{[2
]}

Ershov, B. G. ^{[1
]}

机构：

[1] Russian Acad Sci, AN Frumkin Inst Phys Chem & Electrochem, Leninsky Pr 31-4, Moscow 119071, Russia

[2] Natl Res Nucl Univ MEPhI, Kashirskoe Highway 31, Moscow 115409, Russia

来源：

JOURNAL OF NANOPARTICLE RESEARCH | 2018年 / 20卷 / 02期

基金：

俄罗斯基础研究基金会;

关键词：

Silver nanoparticle; Electrochemical mechanism; Halide ion; Transformation; Induction period; Nanoparticle shape change; SURFACE-PLASMON-RESONANCE; ENHANCED FLUORESCENCE; SHAPE EVOLUTION; NANOPARTICLES; CONVERSION; SENSOR; SPECTROSCOPY; ELECTRONICS; EXCITATION; CATALYSTS;

D O I：

10.1007/s11051-018-4133-6

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The transformation process of 20-50 nm silver nanoprisms in the presence of Cl-, Br-, and I-ions was studied. The threshold concentrations of halide ions that initiate the transformation do not depend on the size of nanoprisms. It was shown that the structure change is caused by the formation of poorly soluble silver complexes on nanoprisms and occurs by an electrochemical mechanism. The induction period preceding the onset of shape transformation is related to the formation of silver halide nanoelectrodes. The electrochemical reactions involving silver and silver halide nanoelectrodes induce restructuring of silver particles the efficiency of which is determined by electrode potentials.

引用

页数：12

共 48 条

[1] Optical properties and growth aspects of silver nanoprisms produced by a highly reproducible and rapid synthesis at room temperature
Aherne, Damian
Ledwith, Deirdre M.
Gara, Matthew
Kelly, John M.
[J]. ADVANCED FUNCTIONAL MATERIALS, 2008, 18 (14) : 2005 - 2016
[2] Contactless Electrical Sintering of Silver Nanoparticles on Flexible Substrates
Allen, Mark
Alastalo, Ari
Suhonen, Mika
Mattila, Tomi
Leppaniemi, Jaakko
Seppa, Heikki
[J]. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2011, 59 (05) : 1419 - 1429
[3] Traps and cages for universal SERS detection
Alvarez-Puebla, Ramon A.
Liz-Marzan, Luis M.
[J]. CHEMICAL SOCIETY REVIEWS, 2012, 41 (01) : 43 - 51
[4] A Study of the Surface Plasmon Resonance of Silver Nanoparticles by the Discrete Dipole Approximation Method: Effect of Shape, Size, Structure, and Assembly
Amendola, Vincenzo
Bakr, Osman M.
Stellacci, Francesco
[J]. PLASMONICS, 2010, 5 (01) : 85 - 97
[5] Sculpturing effect of chloride ions in shape transformation from triangular to discal silver nanoplates
An, Jing
Tang, Bin
Zheng, Xianliang
Zhou, Ji
Dong, Fengxia
Xu, Shuping
Wang, Ye
Zhao, Bing
Xu, Weiqing
[J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (39) : 15176 - 15182
[6] Tailor-Made Hollow Silver Nanoparticle Cages Assembled with Silver Nanoparticles: An Efficient Catalyst for Epoxidation
Anandhakumar, S.
Sasidharan, M.
Tsao, Cheng-Wen
Raichur, Ashok M.
[J]. ACS APPLIED MATERIALS & INTERFACES, 2014, 6 (05) : 3275 - 3281
[7] Fluorescent core-shell Ag@SiO2 nanocomposites for metal-enhanced fluorescence and single nanoparticle sensing platforms
Aslan, Kadir
Wu, Meng
Lakowicz, Joseph R.
Geddes, Chris D.
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (06) : 1524 - +
[8] Formation of silver nanoprisms with surface plasmons at communication wavelengths
Bastys, V
Pastoriza-Santos, I
Rodríguez-González, B
Vaisnoras, R
Liz-Marzán, LM
[J]. ADVANCED FUNCTIONAL MATERIALS, 2006, 16 (06) : 766 - 773
[9] Nanoplasmonic enhancement of single-molecule fluorescence
Bharadwaj, Palash
Anger, Pascal
Novotny, Lukas
[J]. NANOTECHNOLOGY, 2007, 18 (04)
[10] Systematic computational study of the effect of silver nanoparticle dimers on the coupled emission from nearby fluorophores
Chowdhury, Mustafa H.
Pond, James
Gray, Stephen K.
Lakowicz, Joseph R.
[J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (30) : 11236 - 11249

← 1 2 3 4 5 →