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Volumn 10, Issue 6, 1998, Pages 1490-1500

Effect of Methanol Concentration on CTAB Micellization and on the Formation of Surfactant-Templated Silica (STS)

Author keywords

[No Author keywords available]

Indexed keywords


EID: 0000504558     PISSN: 08974756     EISSN: None     Source Type: Journal    
DOI: 10.1021/cm970240m     Document Type: Article
Times cited : (90)

References (43)
  • 13
  • 21
    • 85033923382 scopus 로고    scopus 로고
    • note
    • 24 and powders of submicron particles (reported herein).
  • 26
    • 85033932021 scopus 로고    scopus 로고
    • note
    • The four-reagent syntheses described above lead to formation of STS from inhomogeneous solutions, and thus can result in less than optimal yield (with respect to silica and surfactant, especially where nonmolecular silica sources are used along with a large molar excess of surfactant).
  • 28
    • 0029225366 scopus 로고
    • Komarneni, S., Smith, D. M., Beck, J. S., Eds.; Materials Research Society: Pittsburgh, PA
    • (a) Kim, A. Y.; Liu, J.; Virden, J. W.; Bunker, B. Materials Research Society Symposium Proceedings Komarneni, S., Smith, D. M., Beck, J. S., Eds.; Materials Research Society: Pittsburgh, PA, 1995; Vol. 371, pp 105-110.
    • (1995) Materials Research Society Symposium Proceedings , vol.371 , pp. 105-110
    • Kim, A.Y.1    Liu, J.2    Virden, J.W.3    Bunker, B.4
  • 31
    • 85033914444 scopus 로고    scopus 로고
    • note
    • We have directly observed with optical microscopy that the hydrolyzed TEOS forms micron-size seed-pod-like structures that eventually burst and expel partially hydrolyzed silicate species; the shell remains and is a contaminant in the final product.
  • 39
    • 85033919460 scopus 로고    scopus 로고
    • note
    • inst ≈ 0.10° for the 100 Bragg reflection.
  • 41
    • 85033930500 scopus 로고    scopus 로고
    • note
    • The surfactants are nominally 99+% pure. The primary impurities are assumed to be aliphatic and hydrophobic, and they most likely reside inside at the hydrophobic interior of the micelle. Such species are more soluble in alcohol than in water. Partitioning of these species into the continuous phase could increase the dispersity of micelles. This could lead to an increase in CSD size and may contribute to the increase in CSD size.
  • 43
    • 85033917401 scopus 로고    scopus 로고
    • note
    • 1,3


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.