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公开(公告)号:US5800783A
公开(公告)日:1998-09-01
申请号:US967076
申请日:1997-11-10
CPC分类号: G01N27/12 , G01N33/0031 , G01N33/0037 , Y10T436/17 , Y10T436/177692
摘要: An NOx sensor for an exhaust gas is made from .beta.-Nb.sub.2 O.sub.5 as a primary component and TiO.sub.2 as a subsidiary component. The TiO.sub.2 content is in a range of 0.1% by weight .ltoreq.TiO.sub.2 .ltoreq. 20% by weight. In place of TiO.sub.2, Ru may be used in the NOx sensor. The Ru content is in a range of 0.1% by weight .ltoreq.Ru.ltoreq. 10% by weight. Thus, the NOx sensor has an excellent NOx adsorbing ability and is higher in sensitivity to NOx in an exhaust gas.
摘要翻译: 用于废气的NOx传感器由作为主要组分的β-N 2 O 5和作为辅助组分的TiO 2制成。 TiO 2的含量为0.1重量%,TiO 2为20重量%。 可以在NOx传感器中使用Ru代替TiO 2。 Ru含量在0.1重量%的范围内,Ru <10重量%。 因此,NOx传感器具有优异的NOx吸附能力,并且对废气中的NOx的灵敏度更高。