Abstract
This paper describes a sophisticated and unique method of Au deposition exclusively inside mesoporous silica, in clear contrast to general methods requiring surface modification with organic functional groups interacting with Au. Reductive deposition using hexane and 1,1,3,3-tetramethydisiloxane as solvent and reducing agent, respectively, was very successful in the inside deposition of Au in two-dimensional hexagonal mesoporous silica (SBA-15). This result was attributed to the suppression of the migration of Au species (Au ions, atoms, and clusters) inside SBA-15 by forcibly locating Au species near the relatively polar mesopore surfaces in the presence of highly non-polar compounds in the mesochannels. Au nanorods replicated from the pore shape of SBA-15 were prepared by reductive deposition, while Au nanoparticles were selectively formed by performing the deposition in the presence of hexadecyltrimethylammonium bromide, which shows promise in the further development of precise design strategies for nanostructured Au.
| Original language | English |
|---|---|
| Pages (from-to) | 27201-27206 |
| Number of pages | 6 |
| Journal | RSC Advances |
| Volume | 4 |
| Issue number | 52 |
| DOIs | |
| Publication status | Published - 2014 |
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ASJC Scopus subject areas
- Chemical Engineering(all)
- Chemistry(all)
Cite this
Preparation of highly controlled nanostructured Au within mesopores using reductive deposition in non-polar environments. / Kitahara, Masaki; Kuroda, Kazuyuki.
In: RSC Advances, Vol. 4, No. 52, 2014, p. 27201-27206.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Preparation of highly controlled nanostructured Au within mesopores using reductive deposition in non-polar environments
AU - Kitahara, Masaki
AU - Kuroda, Kazuyuki
PY - 2014
Y1 - 2014
N2 - This paper describes a sophisticated and unique method of Au deposition exclusively inside mesoporous silica, in clear contrast to general methods requiring surface modification with organic functional groups interacting with Au. Reductive deposition using hexane and 1,1,3,3-tetramethydisiloxane as solvent and reducing agent, respectively, was very successful in the inside deposition of Au in two-dimensional hexagonal mesoporous silica (SBA-15). This result was attributed to the suppression of the migration of Au species (Au ions, atoms, and clusters) inside SBA-15 by forcibly locating Au species near the relatively polar mesopore surfaces in the presence of highly non-polar compounds in the mesochannels. Au nanorods replicated from the pore shape of SBA-15 were prepared by reductive deposition, while Au nanoparticles were selectively formed by performing the deposition in the presence of hexadecyltrimethylammonium bromide, which shows promise in the further development of precise design strategies for nanostructured Au.
AB - This paper describes a sophisticated and unique method of Au deposition exclusively inside mesoporous silica, in clear contrast to general methods requiring surface modification with organic functional groups interacting with Au. Reductive deposition using hexane and 1,1,3,3-tetramethydisiloxane as solvent and reducing agent, respectively, was very successful in the inside deposition of Au in two-dimensional hexagonal mesoporous silica (SBA-15). This result was attributed to the suppression of the migration of Au species (Au ions, atoms, and clusters) inside SBA-15 by forcibly locating Au species near the relatively polar mesopore surfaces in the presence of highly non-polar compounds in the mesochannels. Au nanorods replicated from the pore shape of SBA-15 were prepared by reductive deposition, while Au nanoparticles were selectively formed by performing the deposition in the presence of hexadecyltrimethylammonium bromide, which shows promise in the further development of precise design strategies for nanostructured Au.
UR - http://www.scopus.com/inward/record.url?scp=84903624860&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84903624860&partnerID=8YFLogxK
U2 - 10.1039/c4ra03641g
DO - 10.1039/c4ra03641g
M3 - Article
AN - SCOPUS:84903624860
VL - 4
SP - 27201
EP - 27206
JO - RSC Advances
JF - RSC Advances
SN - 2046-2069
IS - 52
ER -