Nanoparticle architectures templated by SiO 2/Fe 2O 3 nanocomposites

Dong Kee Yi; Su Seong Lee; Georgia C. Papaefthymiou; Jackie Y. Ying

doi:10.1021/cm0512979

Nanoparticle architectures templated by SiO ₂/Fe ₂O ₃ nanocomposites

Dong Kee Yi
, Su Seong Lee
, Georgia C. Papaefthymiou
, Jackie Y. Ying^*

^*Corresponding author for this work

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

385 Scopus citations

Abstract

Reverse microemulsion techniques combined with templating strategies have led to the synthesis of four types of nanoparticles. First, homogeneous SiO ₂-coated Fe ₂O ₃ (SiO ₂/Fe ₂O ₃) nanoparticles with controlled SiO ₂ shell thickness (1.8-30 nm) were synthesized by reverse microemulsion. These nanocomposite particles were used as templates for the deposition of a mesoporous silica shell. The iron oxide core in SiO ₂/Fe ₂O ₃ could be partially and completely etched to produce rattle-type SiO ₂/Fe ₂O ₃ nanoballs and hollow SiO ₂ nanoballs, respectively. These facile synthetic methods led to the formation of different nanoparticle architectures with tailored silica shell thickness and porosity.

Original language	English
Pages (from-to)	614-619
Number of pages	6
Journal	Chemistry of Materials
Volume	18
Issue number	3
DOIs	https://doi.org/10.1021/cm0512979
State	Published - 7 Feb 2006
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Materials Chemistry

Access to Document

10.1021/cm0512979

Cite this

@article{a39d4e50f8664efe8c9b078a84c54fa5,

title = "Nanoparticle architectures templated by SiO 2/Fe 2O 3 nanocomposites",

abstract = "Reverse microemulsion techniques combined with templating strategies have led to the synthesis of four types of nanoparticles. First, homogeneous SiO 2-coated Fe 2O 3 (SiO 2/Fe 2O 3) nanoparticles with controlled SiO 2 shell thickness (1.8-30 nm) were synthesized by reverse microemulsion. These nanocomposite particles were used as templates for the deposition of a mesoporous silica shell. The iron oxide core in SiO 2/Fe 2O 3 could be partially and completely etched to produce rattle-type SiO 2/Fe 2O 3 nanoballs and hollow SiO 2 nanoballs, respectively. These facile synthetic methods led to the formation of different nanoparticle architectures with tailored silica shell thickness and porosity.",

author = "Yi, \{Dong Kee\} and Lee, \{Su Seong\} and Papaefthymiou, \{Georgia C.\} and Ying, \{Jackie Y.\}",

year = "2006",

month = feb,

day = "7",

doi = "10.1021/cm0512979",

language = "English",

volume = "18",

pages = "614--619",

journal = "Chemistry of Materials",

issn = "0897-4756",

publisher = "American Chemical Society",

number = "3",

}

TY - JOUR

T1 - Nanoparticle architectures templated by SiO 2/Fe 2O 3 nanocomposites

AU - Yi, Dong Kee

AU - Lee, Su Seong

AU - Papaefthymiou, Georgia C.

AU - Ying, Jackie Y.

PY - 2006/2/7

Y1 - 2006/2/7

N2 - Reverse microemulsion techniques combined with templating strategies have led to the synthesis of four types of nanoparticles. First, homogeneous SiO 2-coated Fe 2O 3 (SiO 2/Fe 2O 3) nanoparticles with controlled SiO 2 shell thickness (1.8-30 nm) were synthesized by reverse microemulsion. These nanocomposite particles were used as templates for the deposition of a mesoporous silica shell. The iron oxide core in SiO 2/Fe 2O 3 could be partially and completely etched to produce rattle-type SiO 2/Fe 2O 3 nanoballs and hollow SiO 2 nanoballs, respectively. These facile synthetic methods led to the formation of different nanoparticle architectures with tailored silica shell thickness and porosity.

AB - Reverse microemulsion techniques combined with templating strategies have led to the synthesis of four types of nanoparticles. First, homogeneous SiO 2-coated Fe 2O 3 (SiO 2/Fe 2O 3) nanoparticles with controlled SiO 2 shell thickness (1.8-30 nm) were synthesized by reverse microemulsion. These nanocomposite particles were used as templates for the deposition of a mesoporous silica shell. The iron oxide core in SiO 2/Fe 2O 3 could be partially and completely etched to produce rattle-type SiO 2/Fe 2O 3 nanoballs and hollow SiO 2 nanoballs, respectively. These facile synthetic methods led to the formation of different nanoparticle architectures with tailored silica shell thickness and porosity.

UR - https://www.scopus.com/pages/publications/32944476325

U2 - 10.1021/cm0512979

DO - 10.1021/cm0512979

M3 - Article

AN - SCOPUS:32944476325

SN - 0897-4756

VL - 18

SP - 614

EP - 619

JO - Chemistry of Materials

JF - Chemistry of Materials

IS - 3