- Tytuł:
- Synthesis, Structure, and Catalytic Activity of Au/Poly(ethylene terephthalate) Composites
- Autorzy:
-
Mashentseva, A.
Borgekov, D.
Zdorovets, M.
Russakova, A. - Powiązania:
- https://bibliotekanauki.pl/articles/1365723.pdf
- Data publikacji:
- 2014-06
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
62.23.Pq
82.65.+r
82.20.Pm - Opis:
- A standard technique of electroless gold deposition was modified by changing the composition of Ag-based activation solution. This allows preparation of two types of poly(ethyleneterephthalate) (PET) track etched membranes coated entirely with gold after 1, 5, and 24 h of reaction at 4°C. After dissolving the polymer template, gold nanotubes with outer diameter of 70-80 nm were characterized by scanning electron microscopy, energy dispersive X-ray spectroscopy, and X-ray diffraction. Reduction of p-nitrophenol to p-aminophenol by sodium borohydride was used to investigate the catalytic activity of as-prepared Au/PET membrane. All experiments were carried out for five consecutive cycles and rate constant of the pseudo-first-order reaction was calculated. It was found that Au/Ag/PET composites prepared after activation for 3 min in Ag-based solution (with potassium sodium tartrate as reducing agent) more effective catalyst (k=0.087 $min^{-1}$) was obtained when the Au/PET samples activated with ammonia silver nitrate solution (k=0.041 $min^{-1}$).
- Źródło:
-
Acta Physica Polonica A; 2014, 125, 6; 1263-1266
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł