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The preparation of novel silica gel hollow tubes **
Author(s) -
Nakamura Hidenori,
Matsui Yasushi
Publication year - 1995
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.19950071013
Subject(s) - materials science , citric acid , silica gel , sol gel , porosity , ammonia , chemical engineering , tube (container) , composite material , nanotechnology , organic chemistry , chemistry , engineering
Work‐like silica gel hollow tubes have been prepared using a sol‐gel method. The tubes (see Figure), wich are porous, mostly have one end closed, although occasionally tubes with both ends closed are produced. The preparation method, which involves the hdyrolysis of tetraethylorothosilicate in a mixture of ethanol, ammonia, water and citric acid monohydrate, is described.