Scalable routes to janus Au-SiO2 and ternary Ag-Au-SiO 2 nanoparticles

Tao Chen; Gang Chen; Shuangxi Xing; Tom Wu; Hongyu Chen

doi:10.1021/cm101155v

Scalable routes to janus Au-SiO₂ and ternary Ag-Au-SiO ₂ nanoparticles

Tao Chen, Gang Chen, Shuangxi Xing, Tom Wu, Hongyu Chen^*

^*Corresponding author for this work

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

187 Scopus citations

Abstract

A study was conducted to develop approach to control silica deposition on partial surface of Au nanospheres (NS). The selective deposition was driven by the partitioned surface functionalities on AuNSs through competitive ligand coordination. AgNSs or Ag nanorods (NRs) were grown on the exposed Au surface, generating ternary Ag-Au-SiO₂ structures and reducing the symmetry. Tetraethyl orthosilicate (TEOS) was used as silica precursor to conduct the investigations. The surface of the AuNSs was partially encapsulated with SiO₂ after its hydrolysis and subsequent condensation catalyzed by ammonia.

Original language	English (US)
Pages (from-to)	3826-3828
Number of pages	3
Journal	Chemistry of Materials
Volume	22
Issue number	13
DOIs	https://doi.org/10.1021/cm101155v
State	Published - Jul 13 2010
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Materials Chemistry

Access to Document

10.1021/cm101155v

Cite this

@article{ca4ac2170ead42d884cd01bc7a996ea7,

title = "Scalable routes to janus Au-SiO2 and ternary Ag-Au-SiO 2 nanoparticles",

abstract = "A study was conducted to develop approach to control silica deposition on partial surface of Au nanospheres (NS). The selective deposition was driven by the partitioned surface functionalities on AuNSs through competitive ligand coordination. AgNSs or Ag nanorods (NRs) were grown on the exposed Au surface, generating ternary Ag-Au-SiO2 structures and reducing the symmetry. Tetraethyl orthosilicate (TEOS) was used as silica precursor to conduct the investigations. The surface of the AuNSs was partially encapsulated with SiO2 after its hydrolysis and subsequent condensation catalyzed by ammonia.",

author = "Tao Chen and Gang Chen and Shuangxi Xing and Tom Wu and Hongyu Chen",

year = "2010",

month = jul,

day = "13",

doi = "10.1021/cm101155v",

language = "English (US)",

volume = "22",

pages = "3826--3828",

journal = "Chemistry of Materials",

issn = "0897-4756",

publisher = "AMER CHEMICAL SOC",

number = "13",

}

TY - JOUR

T1 - Scalable routes to janus Au-SiO2 and ternary Ag-Au-SiO 2 nanoparticles

AU - Chen, Tao

AU - Chen, Gang

AU - Xing, Shuangxi

AU - Wu, Tom

AU - Chen, Hongyu

PY - 2010/7/13

Y1 - 2010/7/13

N2 - A study was conducted to develop approach to control silica deposition on partial surface of Au nanospheres (NS). The selective deposition was driven by the partitioned surface functionalities on AuNSs through competitive ligand coordination. AgNSs or Ag nanorods (NRs) were grown on the exposed Au surface, generating ternary Ag-Au-SiO2 structures and reducing the symmetry. Tetraethyl orthosilicate (TEOS) was used as silica precursor to conduct the investigations. The surface of the AuNSs was partially encapsulated with SiO2 after its hydrolysis and subsequent condensation catalyzed by ammonia.

AB - A study was conducted to develop approach to control silica deposition on partial surface of Au nanospheres (NS). The selective deposition was driven by the partitioned surface functionalities on AuNSs through competitive ligand coordination. AgNSs or Ag nanorods (NRs) were grown on the exposed Au surface, generating ternary Ag-Au-SiO2 structures and reducing the symmetry. Tetraethyl orthosilicate (TEOS) was used as silica precursor to conduct the investigations. The surface of the AuNSs was partially encapsulated with SiO2 after its hydrolysis and subsequent condensation catalyzed by ammonia.

UR - http://www.scopus.com/inward/record.url?scp=79251491571&partnerID=8YFLogxK

U2 - 10.1021/cm101155v

DO - 10.1021/cm101155v

M3 - Article

AN - SCOPUS:79251491571

SN - 0897-4756

VL - 22

SP - 3826

EP - 3828

JO - Chemistry of Materials

JF - Chemistry of Materials

IS - 13

ER -

Scalable routes to janus Au-SiO₂ and ternary Ag-Au-SiO ₂ nanoparticles

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this