Abstract
Modified silica xerogels can be obtained from several trialkoxysilanes containing a specific group attached to silicon ZSi(OR′) 3 (where R′ means an alkyl group). We report here the use of Z = H. In basic catalyzed conditions, the hydrolysis induces a release of H 2 gas coming from SiH bonds. However, in neutral or acidic conditions it is possible to prevent the cleavage of SiH bonds. Thus, the dried gel contains SiH bonds as shown both by spectroscopy and chemical analysis. This new family of gels reacts with oxygen gas from the atmosphere. During heating, gels show a 7% weight increase in the temperature range 250°C to 600°C.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
