Nitrides and oxynitrides which can be used as selective detectors of reducing gases in the atmosphere, and detection device containing them
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United States of America Patent
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Sep 22, 1987
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N/A
app pub date -
Mar 28, 1986
filing date -
Apr 2, 1985
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Expired
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Abstract
Nitrides and oxynitrides which can be used as selective detectors of reducing gases in the atmosphere, and a detection device containing them. Selective detectors of nitrogen-containing reducing gases in the atmosphere, in particular ammonia and gases containing NH and/or NH.sub.2 groups, of the semiconductor resistance type, the nitrides and oxynitrides according to the invention are of tetrahedral structure and contain: a metal chosen from the group comprising Li, Na, K, Be, Mg, Ca, Sr, Ba, Zn and Mn; a second element chosen from the group comprising Si, Ge, P, Al and Ga; nitrogen and, if appropriate, oxygen.
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