ANALYSIS OF THERMALLY TREATED SILICA-GEL USING FOURIER-TRANSFORM ION-CYCLOTRON RESONANCE MASS-SPECTROMETRY

Authors
LAFARGUE PE GAUMET JJ MULLER JF
Citation
Pe. Lafargue et al., ANALYSIS OF THERMALLY TREATED SILICA-GEL USING FOURIER-TRANSFORM ION-CYCLOTRON RESONANCE MASS-SPECTROMETRY, Chemical physics letters, 288(2-4), 1998, pp. 494-498
Citations number
10
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
Chemical physics letters → ACNP
ISSN journal
00092614
Volume
288
Issue
2-4
Year of publication
1998
Pages
494 - 498
Database
ISI
SICI code
0009-2614(1998)288:2-4<494:AOTTSU>2.0.ZU;2-Y
Abstract
It is possible to analyse thermally treated Stober's silica compounds by laser microprobe mass spectrometry by studying two induced silica c luster families: SinO2n+1H- and SinO2n+1-. We show in this Letter that the ratio of the intensities of the peaks corresponding to SinO2n+1H- /SinO2n+1- decreases as the temperature of the thermal treatment incre ases. Moreover, we are able to support previous results obtained by Si -29 NMR regarding the decrease of the concentration of hydroxyl groups in correlation with the increase of the temperature treatment of a si lica sample. (C) 1998 Elsevier Science B.V. All rights reserved.