Abstract
The molecular dynamics computer simulation technique has been used to study the atomic level structure at the vitreous silica surface and the effect that this surface structure has on the early stages of adsorption of K and Li ions. K ions preferentially adsorb at nonbridging oxygen (NBO), often diffusing over the surface prior to finding such sites. After saturation of these NBO's, the K ions attack siloxane bonds. The K ions do not diffuse into the silica substrate, even though there are channels available for such diffusion. Li ions initially adsorb at both the NBO as well as the bridging oxygen at strained siloxane bonds. Also the Li ions readily diffuse into the subsurface regions of the glass.
| Original language | English |
|---|---|
| Pages (from-to) | 975-981 |
| Number of pages | 7 |
| Journal | Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films |
| Volume | 6 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 1988 |
Fingerprint
ASJC Scopus subject areas
- Condensed Matter Physics
- Surfaces and Interfaces
- Surfaces, Coatings and Films
Cite this
Onset of alkali adsorption on the vitreous silica surface. / Garofalini, Steve; Zirl, David M.
In: Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films, Vol. 6, No. 3, 1988, p. 975-981.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Onset of alkali adsorption on the vitreous silica surface
AU - Garofalini, Steve
AU - Zirl, David M.
PY - 1988
Y1 - 1988
N2 - The molecular dynamics computer simulation technique has been used to study the atomic level structure at the vitreous silica surface and the effect that this surface structure has on the early stages of adsorption of K and Li ions. K ions preferentially adsorb at nonbridging oxygen (NBO), often diffusing over the surface prior to finding such sites. After saturation of these NBO's, the K ions attack siloxane bonds. The K ions do not diffuse into the silica substrate, even though there are channels available for such diffusion. Li ions initially adsorb at both the NBO as well as the bridging oxygen at strained siloxane bonds. Also the Li ions readily diffuse into the subsurface regions of the glass.
AB - The molecular dynamics computer simulation technique has been used to study the atomic level structure at the vitreous silica surface and the effect that this surface structure has on the early stages of adsorption of K and Li ions. K ions preferentially adsorb at nonbridging oxygen (NBO), often diffusing over the surface prior to finding such sites. After saturation of these NBO's, the K ions attack siloxane bonds. The K ions do not diffuse into the silica substrate, even though there are channels available for such diffusion. Li ions initially adsorb at both the NBO as well as the bridging oxygen at strained siloxane bonds. Also the Li ions readily diffuse into the subsurface regions of the glass.
UR - http://www.scopus.com/inward/record.url?scp=0007127541&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0007127541&partnerID=8YFLogxK
U2 - 10.1116/1.575043
DO - 10.1116/1.575043
M3 - Article
AN - SCOPUS:0007127541
VL - 6
SP - 975
EP - 981
JO - Journal of Vacuum Science and Technology A
JF - Journal of Vacuum Science and Technology A
SN - 0734-2101
IS - 3
ER -