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

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

doi:10.1021/cm101155v

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

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

^*Corresponding author for this work

Physical Sciences and Engineering

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

176 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-SiO ₂ 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 SiO ₂ 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

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Materials Chemistry

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10.1021/cm101155v

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title = " Scalable routes to janus Au-SiO 2 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-SiO 2 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 SiO 2 after its hydrolysis and subsequent condensation catalyzed by ammonia. ",

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

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Scalable routes to janus Au-SiO ₂ and ternary Ag-Au-SiO ₂ nanoparticles . / Chen, Tao; Chen, Gang; Xing, Shuangxi et al.
In: Chemistry of Materials, Vol. 22, No. 13, 13.07.2010, p. 3826-3828.

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

TY - JOUR

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

AU - Chen, Tao

AU - Chen, Gang

AU - Xing, Shuangxi

AU - Wu, Tao

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-SiO 2 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 SiO 2 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-SiO 2 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 SiO 2 after its hydrolysis and subsequent condensation catalyzed by ammonia.

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DO - 10.1021/cm101155v

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JO - Chemistry of Materials

JF - Chemistry of Materials

IS - 13

ER -

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

Abstract

ASJC Scopus subject areas

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