Connectivity in sol-gel silica glasses

被引：4
|
作者：
Vasconcelos, WL [1 ]
机构：
[1] UFMG, Dept Met & Mat Engn, BR-30160030 Belo Horizonte, MG, Brazil
来源：
QUIMICA NOVA | 1998年 / 21卷 / 04期
关键词：
connectivity; permeability; sol-gel;
D O I：
10.1590/S0100-40421998000400026
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this work it is carried out a review on structural parameters related to the evaluation of pore connectivity of nanostructures. The work describes parameters and methods of evaluation of geometric parameters. The concepts of connectivity are applied to silica gels and glasses obtained from sol-gel process. The study of pores connectivity was carried out using a combination of geometric modeling and experimental evaluation of specific surface area and pore volume. The permeability of the pore structure is evaluated and a permeability geometric factor, Pg, is proposed.
引用
收藏
页码：514 / 516
页数：3
相关论文
共 50 条
  • [1] Ionic diffusion in silica sol-gel glasses
    Olteanu, Marta S. Fellows
    McIntire, Michael J.
    Lloyd, Patrick M.
    Chronister, Aaron M.
    Chronister, Eric L.
    [J]. MATERIALS LETTERS, 2014, 120 : 189 - 192
  • [2] SOL-GEL FORMATION OF SILICA ZIRCONIA GLASSES
    PALLADINO, M
    PIRINI, F
    BEGHI, M
    CHIURLO, P
    COGLIATI, G
    COSTA, L
    [J]. JOURNAL OF NON-CRYSTALLINE SOLIDS, 1992, 147 : 335 - 339
  • [3] Silica sol-gel glasses with embedded organic liquids
    Böttcher, H
    Kallies, KH
    Haufe, H
    Seidel, J
    [J]. ADVANCED MATERIALS, 1999, 11 (02) : 138 - 141
  • [4] PREPARATION OF SILICA AND SODA-SILICA GLASSES BY THE SOL-GEL PROCESS
    PUYANE, R
    JAMES, PF
    RAWSON, H
    [J]. JOURNAL OF NON-CRYSTALLINE SOLIDS, 1980, 41 (01) : 105 - 115
  • [5] SILICA AND SILICA-TITANIA GLASSES PREPARED BY THE SOL-GEL PROCESS
    GONZALEZOLIVER, CJR
    JAMES, PF
    RAWSON, H
    [J]. JOURNAL OF NON-CRYSTALLINE SOLIDS, 1982, 48 (01) : 129 - 152
  • [6] Effect of doping on photosensitivity of sol-gel derived silica glasses
    Leyderman, A
    Arcos, D
    Lee, CYC
    [J]. PHOTOREFRACTIVE FIBER AND CRYSTAL DEVICES: MATERIALS, OPTICAL PROPERTIES, AND APPLICATIONS VII, AND OPTICAL DATA STORAGE, 2002, 4459 : 210 - 218
  • [7] THE PREPARATION OF CDS PARTICLES IN SILICA GLASSES BY A SOL-GEL METHOD
    CORDONCILLO, E
    ESCRIBANO, P
    MONROS, G
    TENA, MA
    ORERA, VM
    CARDA, J
    [J]. JOURNAL OF SOLID STATE CHEMISTRY, 1995, 118 (01) : 1 - 5
  • [8] Preparation and characterization of erbium doped sol-gel silica glasses
    Lei, HB
    Yang, QQ
    Ou, HY
    Chen, BW
    Yu, JZ
    Wang, QM
    Xie, DT
    Wu, JG
    Xu, DF
    Xu, GX
    [J]. RARE-EARTH-DOPED MATERIALS AND DEVICES III, 1999, 3622 : 74 - 80
  • [9] Encapsulation of the ferritin protein in sol-gel derived silica glasses
    Lan, EH
    Dunn, B
    Valentine, JS
    Zink, JI
    [J]. JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 1996, 7 (1-2) : 109 - 116
  • [10] Pyrromethene doped silica laser glasses by sol-gel processes
    Zhang, QY
    Jiang, ZH
    [J]. MATERIALS CHEMISTRY AND PHYSICS, 2001, 69 (1-3) : 95 - 98
12345