Characterization of hollow chemical garden fibers from metal salts and water glass
Küçük Resim Yok
Tarih
2002
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Kluwer Academic Publ
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Hollow fibers formed from water glass and metal salts of IIA(Ca), VIIB(Fe, Co, Ni) and IB(Cu) groups were characterised in this study. Fragile fibres obtained herein broke down into small pieces during isolation and drying. Quantitative information about morphology, chemical composition and surface structure of the fibres were obtained. The diameter and wall thickness of the fibers were around 50 mu and 3 mu. respectively. They had particulate inner and smooth outer surfaces. Fibers had variable composition with metal (II) oxide/SiO2 ratio in the range 0.31 to 1.02. While group VIIB metal (II) fibres were amorphous, group IIA and IB metal (II) fibres were partially crystalline All the fibres had pores both in micro pore and meso pore region. The B.E.T surface area from N-2 adsorption data was in the range of 10-249 m(3) g(-1) and 8-176 m(2) g(-1) from Langmuir and B.E.T models respectively.
Açıklama
Anahtar Kelimeler
chemical garden, water glass, metal silicates, nitrogen adsorption, water vapour adsorption, inductively coupled plasma
Kaynak
Journal of Sol-Gel Science and Technology
WoS Q Değeri
Q1
Scopus Q Değeri
Q2
Cilt
23
Sayı
3
