Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

A New Straightforward Approach to Generate Si-H Groups on Silica.

Heeribout1, d'Espinose de la Caillerie JB, Legrand

  • 1Laboratoire de Physique Quantique, E.S.P.C.I., E.S.A. 7069 CNRS, 10, rue Vauquelin, Paris Cedex 05, 75231, France

Journal of Colloid and Interface Science
|July 27, 1999
PubMed
Summary

Hydrogen directly reacts with pyrogenic silica at high temperatures, forming stable silicon hydride (Si-H) groups. These hydride-modified silicas offer unique properties and potential applications as reducing agents or for new chromatographic phases.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Iridectomy associated with tarsoraphia in the treatment of infectious corneal ulcers.

Archives d'ophtalmologie et revue generale d'ophtalmologie·2010
Same author

Imaging the wave-function amplitudes in cleaved semiconductor quantum boxes

Physical review letters·2000
Same author

Beneficial Effect of ortho-Methoxy Groups in the Asymmetric Ring Opening of meso Epoxides with Silicon Tetrachloride Catalyzed by Chiral ortho-Methoxyphenyldiazaphosphonamide Lewis Bases We thank the CNRS for financial support. O.L. acknowledges the CNRS and Region PACA for a doctoral fellowship. We thank Dr. M. Giorgi and Prof. M. Pierrot for their kind assistance with the X-ray analysis of compound 1 and Dr. A. Tenaglia for fruitful discussions.

Angewandte Chemie (International ed. in English)·2000
Same author

Current Awareness.

NMR in biomedicine·2000
Same author

High-Accuracy Determination of the Frequency and Quadrupole Structure of the sP(1, 0) and aR(0, 0) Transitions to the nu(2) State of (14)NH(3).

Journal of molecular spectroscopy·2000
Same author

Molecular Conformation and Mobility of Polyamines Adsorbed on Silica Studied by Spin Labeling.

Journal of colloid and interface science·1999

Area of Science:

  • Materials Science
  • Surface Chemistry
  • Spectroscopy

Background:

  • Silica surfaces typically feature silanol groups.
  • Surface modification of silica is crucial for developing advanced materials.
  • Understanding silica-hydrogen interactions is key for new applications.

Purpose of the Study:

  • To demonstrate the direct reaction of hydrogen with pyrogenic silica.
  • To characterize the resulting stable hydride Si-H groups.
  • To explore the potential applications of hydride-modified silica.

Main Methods:

  • Solid-state nuclear magnetic resonance (NMR) spectroscopy.
  • Diffuse reflectance infrared Fourier transform (DRIFT) spectroscopy.
  • High-temperature reaction studies.

Related Experiment Videos

Main Results:

  • Unequivocal evidence of stable silicon hydride (Si-H) group formation.
  • Demonstration of direct hydrogen reaction with pyrogenic silica at high temperatures.
  • Characterization of modified silica with properties distinct from silanol-only surfaces.

Conclusions:

  • Pyrogenic silica can be effectively modified by hydrogen to form stable Si-H groups.
  • Hydride-modified silicas possess unique properties for potential applications.
  • These materials show promise as reducing agents and in the synthesis of novel chromatographic phases.