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Characterization and quantification of the NH3 modification of a BCl3-treated silica gel surface

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Abstract
The reaction of NH3 with a well characterized silica surface containing =SiOBCl2 surface species has been studied using FTIR photoacoustic spectroscopy and quantitative boron, chloride and ammonia analysis. The influence of reaction time and temperature on the reaction was studied. Characterization of the reactions occurring and the surface species formed was carried out. Both surface siloxane groups and =SiOBCl2 species interact with NH3, resulting in the formation of NH4Cl, chemisorbed amine groups and =SiOH groups. Borazine-like surface species are formed at higher temperatures. A quantitative description of the grafted groups has been obtained as a function of reaction temperature.
Keywords
OXIDE SURFACES, DEHYDROXYLATED SILICA, AMMONIA, ADSORPTION, SITES, CHEMISORPTION, MECHANISM, WATER

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MLA
Possmiers, Karl, et al. “Characterization and Quantification of the NH3 Modification of a BCl3-Treated Silica Gel Surface.” JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, vol. 92, no. 4, 1996, pp. 679–84.
APA
Possmiers, K., Van Der Voort, P., & Vansant, E. F. (1996). Characterization and quantification of the NH3 modification of a BCl3-treated silica gel surface. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 92(4), 679–684.
Chicago author-date
Possmiers, Karl, Pascal Van Der Voort, and Etienne F Vansant. 1996. “Characterization and Quantification of the NH3 Modification of a BCl3-Treated Silica Gel Surface.” JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS 92 (4): 679–84.
Chicago author-date (all authors)
Possmiers, Karl, Pascal Van Der Voort, and Etienne F Vansant. 1996. “Characterization and Quantification of the NH3 Modification of a BCl3-Treated Silica Gel Surface.” JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS 92 (4): 679–684.
Vancouver
1.
Possmiers K, Van Der Voort P, Vansant EF. Characterization and quantification of the NH3 modification of a BCl3-treated silica gel surface. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS. 1996;92(4):679–84.
IEEE
[1]
K. Possmiers, P. Van Der Voort, and E. F. Vansant, “Characterization and quantification of the NH3 modification of a BCl3-treated silica gel surface,” JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, vol. 92, no. 4, pp. 679–684, 1996.
@article{346026,
  abstract     = {The reaction of NH3 with a well characterized silica surface containing =SiOBCl2 surface species has been studied using FTIR photoacoustic spectroscopy and quantitative boron, chloride and ammonia analysis. The influence of reaction time and temperature on the reaction was studied. Characterization of the reactions occurring and the surface species formed was carried out. Both surface siloxane groups and =SiOBCl2 species interact with NH3, resulting in the formation of NH4Cl, chemisorbed amine groups and =SiOH groups. Borazine-like surface species are formed at higher temperatures. A quantitative description of the grafted groups has been obtained as a function of reaction temperature.},
  author       = {Possmiers, Karl and Van Der Voort, Pascal and Vansant, Etienne F},
  issn         = {0956-5000},
  journal      = {JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS},
  keywords     = {OXIDE SURFACES,DEHYDROXYLATED SILICA,AMMONIA,ADSORPTION,SITES,CHEMISORPTION,MECHANISM,WATER},
  language     = {eng},
  number       = {4},
  pages        = {679--684},
  title        = {Characterization and quantification of the NH3 modification of a BCl3-treated silica gel surface},
  url          = {http://dx.doi.org/10.1039/ft9969200679},
  volume       = {92},
  year         = {1996},
}

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