Vibrational spectroscopy of porous Vycor glass: surface hydroxyl perturbations upon adsorption of hydrogen

1990 ◽  
Vol 94 (6) ◽  
pp. 2505-2511 ◽  
Author(s):  
T. E. Huber ◽  
C. A. Huber
Keyword(s):  
Vibrational Spectroscopy ◽  
Glass Surface ◽  
Vycor Glass ◽  
Surface Hydroxyl ◽  
Porous Vycor Glass ◽  
Adsorption Of Hydrogen

scholarly journals An ESR Study of Methylamino Radicals Photoproduced on the Porous Vycor Glass Surface

1974 ◽  
Vol 47 (1) ◽  
pp. 4-8 ◽  
Author(s):  
Keiichiro Hatano ◽  
Norio Shimamoto ◽  
Takashi Katsu ◽  
Yuzaburo Fujita
Keyword(s):  
Glass Surface ◽  
Vycor Glass ◽  
Porous Vycor Glass

ChemInform Abstract: AN ESR STUDY OF METHYLAMINO RADICALS PHOTOPRODUCED ON THE POROUS VYCOR GLASS SURFACE

1974 ◽  
Vol 5 (37) ◽  
Author(s):  
KEIICHIRO HATANO ◽  
NORIO SHIMAMOTO ◽  
TAKASHI KATSU ◽  
YUZABURO FUJITA
Keyword(s):  
Glass Surface ◽  
Vycor Glass ◽  
Porous Vycor Glass

The Effect of Metal Impregnation on the Microstructure of Porous Vycor Glass

1989 ◽  
Vol 168 ◽  
Author(s):  
D. Sunil ◽  
J. Sokolov ◽  
M. H. Rafailovich ◽  
E. Mendoza ◽  
E. Wolkow ◽  
...  
Keyword(s):  
Metal Oxides ◽  
Glass Surface ◽  
Vycor Glass ◽  
X Ray ◽  
X Ray Scattering ◽  
Porous Vycor Glass ◽  
Potential Applications ◽  
Material Refractive Index ◽  
Metal Impregnation ◽  
Particulate Distribution

It has recently been demonstrated that highly resolved images can be produced by photochemical deposition of metal oxides in porous Vycor glass. This process has potential applications to the development of integrated optics in glass since it enables one to deposit in the same material refractive index patterns of optically and electro-magnetically active adsorbates. In order to learn in more detail about the interaction of the metal oxides with the glass, we impregnated porous Vycor glass (PVC) with tin or iron oxides and analyzed the samples with electron microscopy, x-ray microprobe analysis, and small angle x-ray scattering (SAXS). The results indicate that even though both oxides produce images of comparable resolution (approx 1μ), the interaction with the glass surface and particulate distribution is different for the two oxides. In particular, the Sn oxide appears to chemically modify the glass surface and prevents its consolidation.

Carbon‐13 hyperfine splittings of normal and abnormal methyl radicals trapped on the porous Vycor glass surface

1974 ◽  
Vol 61 (10) ◽  
pp. 4307-4311 ◽  
Author(s):  
Yuzaburo Fujita ◽  
Takashi Katsu ◽  
Mitsuo Sato ◽  
Kazumasa Takahashi
Keyword(s):  
Glass Surface ◽  
Methyl Radicals ◽  
Vycor Glass ◽  
Porous Vycor Glass ◽  
Hyperfine Splittings

Photoluminescence of a Porous Vycor Glass; Surface-Enhanced Photocatalyzed Conversion of CO2 to CH4

2019 ◽  
Vol 123 (11) ◽  
pp. 6464-6476
Author(s):  
Robert L. Neuweiler ◽  
Edward G. Look ◽  
Luat T. Vuong ◽  
Harry D. Gafney
Keyword(s):  
Glass Surface ◽  
Vycor Glass ◽  
Porous Vycor Glass ◽  
Surface Enhanced

Adsorption of hydrogen on porous Vycor glass

1990 ◽  
Vol 80 (5-6) ◽  
pp. 315-323 ◽  
Author(s):  
T. E. Huber ◽  
C. A. Huber
Keyword(s):  
Vycor Glass ◽  
Porous Vycor Glass ◽  
Adsorption Of Hydrogen

AN INFRARED STUDY OF THE ADSORPTION OF BUTENES ON SURFACES OF POROUS VYCOR GLASS

1961 ◽  
Vol 39 (1) ◽  
pp. 42-60 ◽  
Author(s):  
L. H. Little ◽  
H. E. Klauser ◽  
C. H. Amberg
Keyword(s):  
Room Temperature ◽  
Acid Leaching ◽  
Hydroxyl Groups ◽  
Infrared Study ◽  
Vycor Glass ◽  
Surface Hydroxyl ◽  
Pure Silica ◽  
Porous Vycor Glass ◽  
Initial Adsorption ◽  
Low Coverage

The adsorption and reactions of the four butenes on porous Vycor glass at room temperature have been studied by infrared spectroscopy. Initial adsorption was rapid and was found to perturb the surface hydroxyl groups of the glass. In the case of the n-butenes rapid isomerization took place at room temperature. In addition to this the adsorbate spectra showed the occurrence of a slower reaction which led to an increase in saturated C—H groupings. C8 and higher compounds were shown to have formed; on outgassing at room temperature small amounts of cracking products were collected. The polymerization of isobutene was particularly rapid. Experiments at low coverage (θ ∼ 0.001–0.002) gave identical initial spectra for the n-butenes. These were discussed in terms of possible models for butene adsorption. A reduction in the alumina and zirconia content of the glass by acid leaching resulted in decreased rates of isomerization and polymerization, suggesting that one or both of these oxides are at least partially responsible for the activity of the glass. A pure silica aerogel was almost completely inactive. Quantitative measurements of the spectra of several monoolefins in solution were made for comparison with the surface species, in particular with respect to their molar intensities of absorption.

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