Abstract
Hexagonal platy composite particles with a hydrotalcite core and a nanoporous silica shell with a thickness of ca. 100 nm were synthesized by the reaction of a Mg-Al hydrotalcite with a homogeneous aqueous solution containing tetraethoxysilane, hexadecyltrimethylammonium chloride, ammonia and methanol at 3 °C. The calcination of the products at 500 °C in air led to the composite particle with a Mg/Al mixed oxide core and a nanoporous silica shell. Hexagonal platy particles of nanoporous silica with a pore diameter of 2.3 nm and BET surface area of 700 m2 (g of silica)-1 were obtained by removing the Mg/Al mixed oxide core.
| Original language | English |
|---|---|
| Pages (from-to) | 311-316 |
| Number of pages | 6 |
| Journal | Journal of Colloid and Interface Science |
| Volume | 312 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2007 Aug 15 |
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Keywords
- Core shell particles
- Hydrotalcite
- Nanoporous silicas
- Supramolecular templating approach
ASJC Scopus subject areas
- Colloid and Surface Chemistry
- Physical and Theoretical Chemistry
- Surfaces and Interfaces
Cite this
Preparation of hexagonal platy particles of nanoporous silica using hydrotalcite as morphology template. / Shimura, Naoki; Ogawa, Makoto.
In: Journal of Colloid and Interface Science, Vol. 312, No. 2, 15.08.2007, p. 311-316.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Preparation of hexagonal platy particles of nanoporous silica using hydrotalcite as morphology template
AU - Shimura, Naoki
AU - Ogawa, Makoto
PY - 2007/8/15
Y1 - 2007/8/15
N2 - Hexagonal platy composite particles with a hydrotalcite core and a nanoporous silica shell with a thickness of ca. 100 nm were synthesized by the reaction of a Mg-Al hydrotalcite with a homogeneous aqueous solution containing tetraethoxysilane, hexadecyltrimethylammonium chloride, ammonia and methanol at 3 °C. The calcination of the products at 500 °C in air led to the composite particle with a Mg/Al mixed oxide core and a nanoporous silica shell. Hexagonal platy particles of nanoporous silica with a pore diameter of 2.3 nm and BET surface area of 700 m2 (g of silica)-1 were obtained by removing the Mg/Al mixed oxide core.
AB - Hexagonal platy composite particles with a hydrotalcite core and a nanoporous silica shell with a thickness of ca. 100 nm were synthesized by the reaction of a Mg-Al hydrotalcite with a homogeneous aqueous solution containing tetraethoxysilane, hexadecyltrimethylammonium chloride, ammonia and methanol at 3 °C. The calcination of the products at 500 °C in air led to the composite particle with a Mg/Al mixed oxide core and a nanoporous silica shell. Hexagonal platy particles of nanoporous silica with a pore diameter of 2.3 nm and BET surface area of 700 m2 (g of silica)-1 were obtained by removing the Mg/Al mixed oxide core.
KW - Core shell particles
KW - Hydrotalcite
KW - Nanoporous silicas
KW - Supramolecular templating approach
UR - http://www.scopus.com/inward/record.url?scp=34250669991&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34250669991&partnerID=8YFLogxK
U2 - 10.1016/j.jcis.2007.02.091
DO - 10.1016/j.jcis.2007.02.091
M3 - Article
VL - 312
SP - 311
EP - 316
JO - Journal of Colloid and Interface Science
JF - Journal of Colloid and Interface Science
SN - 0021-9797
IS - 2
ER -