Matches in UGent Biblio for { <https://biblio.ugent.be/publication/364928#aggregation> ?p ?o. }
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- aggregation classification "A1".
- aggregation creator B439131.
- aggregation creator B439132.
- aggregation creator B439133.
- aggregation creator B439134.
- aggregation creator B439135.
- aggregation creator person.
- aggregation date "1993".
- aggregation hasFormat 364928.bibtex.
- aggregation hasFormat 364928.csv.
- aggregation hasFormat 364928.dc.
- aggregation hasFormat 364928.didl.
- aggregation hasFormat 364928.doc.
- aggregation hasFormat 364928.json.
- aggregation hasFormat 364928.mets.
- aggregation hasFormat 364928.mods.
- aggregation hasFormat 364928.rdf.
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- aggregation hasFormat 364928.txt.
- aggregation hasFormat 364928.xls.
- aggregation hasFormat 364928.yaml.
- aggregation isPartOf urn:issn:0956-5000.
- aggregation language "eng".
- aggregation subject "Chemistry".
- aggregation title "Special data handling techniques for Fourier-transform infrared photoacoustic spectra: estimation and characterization of the N contents on ammoniated trichlorosilylated silica gel, using partial least-squares regression and curve fitting on the Si-H stretching vibration".
- aggregation abstract "The reaction of silica gel with trichlorosilane (HSiCl3) and subsequently with gaseous NH3, resulting in a surface covered with =Si-O-Si(H)(NH2), and NH4Cl species, has been studied. The Si-H stretching vibration (2270 cm-1) of the trichlorosilylated silica perturbs, upon ammonia adsorption, into three overlapping bands. It is shown that partial least-squares regression (PLSR) is able to predict the concentration of the different surface species, using the Si-H stretching vibration region as the only spectral dataset. It is noticeable that this vibration has a constant intensity, since the Si-H species are generated during the trichlorosilylation step, and not during the ammoniation. The mechanisms, causing this perturbation are investigated in more detail, using curve fitting and Si-29 cross-polarisation magic-angle-spinning (CP MAS) NMR. The occurrence of an ammoniated secondary species [(=Si-O),-Si(H)(NH2)] on the silica surface is proposed and its infrared (IR) absorbing frequency is determined. An introduction to PLS for the spectroscopist is included.".
- aggregation authorList BK766167.
- aggregation endPage "68".
- aggregation issue "1".
- aggregation startPage "63".
- aggregation volume "89".
- aggregation isDescribedBy 364928.
- aggregation similarTo ft9938900063.
- aggregation similarTo LU-364928.