Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 9427-9430 |
| Seitenumfang | 4 |
| Fachzeitschrift | LANGMUIR |
| Jahrgang | 22 |
| Ausgabenummer | 22 |
| Publikationsstatus | Veröffentlicht - 24 Okt. 2006 |
Abstract
A detailed understanding of micelle formation that occurs above a critical micelle concentration (cmc) is a crucial point for the surfactant-assisted preparation of porous materials such as molecular sieves. However, the role of the cmc in the surfactant-assisted electrodeposition of porous oxides is widely unknown. In this study, we investigated the electrodeposition of ZnO films under utilization of alkyl sulfates and alkyl sulfonates with different chain lengths. Cmc values of the surfactants were measured directly in the electrodeposition bath by surface tension measurements. Subsequently, we performed electrodeposition with surfactant concentrations from above the cmc down to concentrations well below the cmc. Beside a lamellar ZnO phase already known from earlier studies, a second nanoparticular ZnO phase was found at concentrations below the cmc.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Physik und Astronomie (insg.)
- Physik der kondensierten Materie
- Physik und Astronomie (insg.)
- Oberflächen und Grenzflächen
- Chemie (insg.)
- Spektroskopie
- Chemie (insg.)
- Elektrochemie
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in: LANGMUIR, Jahrgang 22, Nr. 22, 24.10.2006, S. 9427-9430.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Role of the critical micelle concentration in the electrochemical deposition of nanostructured ZnO films under utilization of amphiphilic molecules
AU - Boeckler, Cathrin
AU - Oekermann, Torsten
AU - Feldhoff, Armin
AU - Wark, Michael
PY - 2006/10/24
Y1 - 2006/10/24
N2 - A detailed understanding of micelle formation that occurs above a critical micelle concentration (cmc) is a crucial point for the surfactant-assisted preparation of porous materials such as molecular sieves. However, the role of the cmc in the surfactant-assisted electrodeposition of porous oxides is widely unknown. In this study, we investigated the electrodeposition of ZnO films under utilization of alkyl sulfates and alkyl sulfonates with different chain lengths. Cmc values of the surfactants were measured directly in the electrodeposition bath by surface tension measurements. Subsequently, we performed electrodeposition with surfactant concentrations from above the cmc down to concentrations well below the cmc. Beside a lamellar ZnO phase already known from earlier studies, a second nanoparticular ZnO phase was found at concentrations below the cmc.
AB - A detailed understanding of micelle formation that occurs above a critical micelle concentration (cmc) is a crucial point for the surfactant-assisted preparation of porous materials such as molecular sieves. However, the role of the cmc in the surfactant-assisted electrodeposition of porous oxides is widely unknown. In this study, we investigated the electrodeposition of ZnO films under utilization of alkyl sulfates and alkyl sulfonates with different chain lengths. Cmc values of the surfactants were measured directly in the electrodeposition bath by surface tension measurements. Subsequently, we performed electrodeposition with surfactant concentrations from above the cmc down to concentrations well below the cmc. Beside a lamellar ZnO phase already known from earlier studies, a second nanoparticular ZnO phase was found at concentrations below the cmc.
UR - http://www.scopus.com/inward/record.url?scp=33751423197&partnerID=8YFLogxK
U2 - 10.1021/la0615544
DO - 10.1021/la0615544
M3 - Article
AN - SCOPUS:33751423197
VL - 22
SP - 9427
EP - 9430
JO - LANGMUIR
JF - LANGMUIR
SN - 0743-7463
IS - 22
ER -