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High‐Yield Synthesis of Nanocrystalline Tin Dioxide by Thermal Decomposition for Use in Gas Sensors
Author(s) -
Agashe Chitra,
Aiyer Rohini C.,
Garaje Anil
Publication year - 2008
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/j.1744-7402.2008.02196.x
Subject(s) - tin dioxide , nanocrystalline material , tin , materials science , thermal decomposition , yield (engineering) , chemical engineering , decomposition , scanning electron microscope , nano , transmission electron microscopy , particle size , nanotechnology , inorganic chemistry , metallurgy , composite material , organic chemistry , chemistry , engineering
High‐yield synthesis of nanocrystalline tin dioxide (nano‐SnO 2 ) using a two‐step thermal decomposition process is reported. Stannous chloride with glacial acetic acid was the precursor to form tin diacetate, whose thermal decomposition gave nano‐SnO 2 . The yield of respective steps matched well with theoretically expected values, by 85% for tin diacetate and by 94% for nano‐SnO 2 . Material characterization was done using X‐ray diffraction (phase and particle size) and transmission electron microscopy. The nano‐SnO 2 particles were successfully used to develop thick film H 2 sensors. The sensor characteristics were closely related to the micro‐structural properties of nano‐SnO 2 .