Nanofibers and methods of making same and using same in humidity sensors
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United States of America Patent
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Jul 24, 2012
Grant Date -
Feb 25, 2010
app pub date -
Aug 20, 2009
filing date -
Aug 20, 2008
priority date (Note) -
Expired
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Abstract
A self-cleaning humidity sensor based on Mg2+/Na+-doped TiO2 nanofiber mats is provided. Examples show the response and recovery characteristic curves for ten circles with the RH changing from 11% to 95%. The nanofibers are manufactured by mixing together a metal salt comprising titanium, a magnesium compound, a sodium compound, and a high molecular weight material to form a mixture, electrospinning the mixture to form composite nanofibers, and calcining the composite nanofibers to yield a TiO2 nanofiber material doped with magnesium and sodium.
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