✦ LIBER ✦

NMR study of adsorption techniques for organic compounds on silica surfaces

✍ Scribed by Harald Günther; Sabine Oepen; Michael Ebener; Volkhard Francke

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 103 KB
Volume: 37
Category: Article
ISSN: 0749-1581
DOI: 10.1002/(sici)1097-458x(199912)37:13<s142::aid-mrc573>3.0.co;2-1

No coin nor oath required. For personal study only.

✦ Synopsis

The adsorption of benzenoid aromatic compounds on porous silica has been studied by 13 C and 19 F NMR and by BET measurements. Small chemical shifts between the resonances of methyl groups or fluorine substituents in the microcrystalline bulk material and the adsorbed species can be used to monitor the degree of adsorption. The results for various adsorption techniques, in particular dry adsorption by grinding mixtures of organic material and silica or by ball mill treatment of such mixtures are compared. Annealing and ball mill treatment was found to be most effective.

📜 SIMILAR VOLUMES

XPS study of surface-active organic comp

XPS study of surface-active organic compounds on fine ferrous powder

✍ Elisabeth Johansson; Lars Nyborg 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 52 KB

The cationic polymerization of 2-vinylfu

The cationic polymerization of 2-vinylfuran on the surface of silica particles – an NMR spectroscopic study

✍ Stefan Spange; Susanne Höhne; Volkhard Francke; Harald Günther 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 128 KB 👁 2 views

The cationic polymerization of 2-vinylfuran initiated with triphenylmethyl chloride in conjunction with silica nanoparticles in suspension yields poly(2-vinylfuran)/silica hybrid particles and a soluble fraction of oligo(2-vinylfuran). 2-Vinylfuran cationically is polymerized via both the vinyl doub

Immobilization of Homogeneous Palladium(

Immobilization of Homogeneous Palladium(II) Complex Catalysts on Novel Polysiloxanes with Controllable Solubility: Important Implications for the Study of Heterogeneous Catalysis on Silica Surfaces

✍ Yaw-Shyan Fu; Shuchun J. Yu 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 170 KB 👁 2 views

Immobilization of Homogeneous Palladium(

Immobilization of Homogeneous Palladium(II) Complex Catalysts on Novel Polysiloxanes with Controllable Solubility: Important Implications for the Study of Heterogeneous Catalysis on Silica Surfaces

✍ Yaw-Shyan Fu; Shuchun J. Yu 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 171 KB 👁 2 views

Structural and dynamical studies of 13C-

Structural and dynamical studies of 13C-labeled polyethylene adsorbed on the surface of silica gel by high-resolution solid-state 13C NMR spectroscopy

✍ D. Inoue; H. Kurosu; Qun Chen; I. Ando 📂 Article 📅 1995 🏛 John Wiley and Sons 🌐 English ⚖ 383 KB 👁 2 views

Roof-shaped clathrate compounds as novel

Roof-shaped clathrate compounds as novel coating materials for the detection of organic solvent vapours: a study focussed on thickness shear mode resonators as mass-sensitive transducers

✍ J. Reinbold; K. Cammann; E. Weber; T. Hens; C. Reutel 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 294 KB 👁 2 views