Abstract
In-situ synthesis of chemically pure noble metal (Au, Pt, Pd, Ru) nanoparticles was performed via redox reaction under ambient conditions from aqueous noble metal salt solutions on non-porous fumed silica. Nanoparticles of average sizes <5 and up to 19 nm were obtained. The nanostructured fumed silica with surface modified by triethoxysilane has been proven an effective support for noble metal nanoparticles synthesis. The silicon-hydride groups on the silica surface not only directly reduce noble metal ions from solution, but they also stabilize metal nanoparticles by bonding with the solid matrix. The nanocomposites were studied for the reduction of 2-nitrophenol showing very high activity at room temperature following the order Pd > Au > Ru > Pt.
| Language | English |
|---|---|
| Pages | 28-34 |
| Number of pages | 7 |
| Journal | Journal of Physics and Chemistry of Solids |
| Volume | 127 |
| DOIs | |
| Publication status | Published - Apr 1 2019 |
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Keywords
- 2-nitrophenol
- Fumed silica
- Nanoparticles
- Noble metal
- Redox
- Silicon-hydride
ASJC Scopus subject areas
- Chemistry(all)
- Materials Science(all)
- Condensed Matter Physics
Cite this
In situ production of high purity noble metal nanoparticles on fumed silica and catalytic activity towards 2-nitrophenol reduction. / Korobeinyk, Alina V.; Whitby, Raymond; Mikhalovsky, Sergey; Inglezakis, Vasileios.
In: Journal of Physics and Chemistry of Solids, Vol. 127, 01.04.2019, p. 28-34.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - In situ production of high purity noble metal nanoparticles on fumed silica and catalytic activity towards 2-nitrophenol reduction
AU - Korobeinyk, Alina V.
AU - Whitby, Raymond
AU - Mikhalovsky, Sergey
AU - Inglezakis, Vasileios
PY - 2019/4/1
Y1 - 2019/4/1
N2 - In-situ synthesis of chemically pure noble metal (Au, Pt, Pd, Ru) nanoparticles was performed via redox reaction under ambient conditions from aqueous noble metal salt solutions on non-porous fumed silica. Nanoparticles of average sizes <5 and up to 19 nm were obtained. The nanostructured fumed silica with surface modified by triethoxysilane has been proven an effective support for noble metal nanoparticles synthesis. The silicon-hydride groups on the silica surface not only directly reduce noble metal ions from solution, but they also stabilize metal nanoparticles by bonding with the solid matrix. The nanocomposites were studied for the reduction of 2-nitrophenol showing very high activity at room temperature following the order Pd > Au > Ru > Pt.
AB - In-situ synthesis of chemically pure noble metal (Au, Pt, Pd, Ru) nanoparticles was performed via redox reaction under ambient conditions from aqueous noble metal salt solutions on non-porous fumed silica. Nanoparticles of average sizes <5 and up to 19 nm were obtained. The nanostructured fumed silica with surface modified by triethoxysilane has been proven an effective support for noble metal nanoparticles synthesis. The silicon-hydride groups on the silica surface not only directly reduce noble metal ions from solution, but they also stabilize metal nanoparticles by bonding with the solid matrix. The nanocomposites were studied for the reduction of 2-nitrophenol showing very high activity at room temperature following the order Pd > Au > Ru > Pt.
KW - 2-nitrophenol
KW - Fumed silica
KW - Nanoparticles
KW - Noble metal
KW - Redox
KW - Silicon-hydride
UR - http://www.scopus.com/inward/record.url?scp=85058023670&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85058023670&partnerID=8YFLogxK
U2 - 10.1016/j.jpcs.2018.12.001
DO - 10.1016/j.jpcs.2018.12.001
M3 - Article
VL - 127
SP - 28
EP - 34
JO - Journal of Physics and Chemistry of Solids
T2 - Journal of Physics and Chemistry of Solids
JF - Journal of Physics and Chemistry of Solids
SN - 0022-3697
ER -