Thin film ethanol sensor and a process for the preparation

Chemistry: analytical and immunological testing – Metal or metal containing – Ti – zr – hf – va – nb – ta – cr – mo – w

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C436S127000, C436S132000, C556S064000, C556S067000

Reexamination Certificate

active

06881582

ABSTRACT:
Disclosed is a method of making a bismuth molybdate precursor solution using a metallorganic decomposition (MOD) process consisting of the formation of a precursor sol of hexanoates of Bismuth (Bi) and Molybdenum (Mo). The precursor solution is used to make thin film of Bismuth molybdate by spin coating and spray pyrolysis. The bismuth molybdate films have the useful alpha and gamma phases having high sensitivity to ethanol gas, the detection of the ethanol gas is based upon the change of electrical conductivity of a thick film of the semiconductor oxide sensing element resulting from the ethanol gas in an oxygen-containing atmosphere. When the drying is effected by spray pyrolysis, quite thick films with high adhesion have been produced over different substrates, including quartz. The thin film of the present invention made by spray pyrolysis has a very fast response to ethanol detection eg typically 5 seconds.

REFERENCES:
patent: 3578690 (1971-05-01), Becker
patent: 4504420 (1985-03-01), Ebner
patent: 4587104 (1986-05-01), Yannopoulos
patent: 5071814 (1991-12-01), Sasaki et al.
patent: 5082789 (1992-01-01), Morrison et al.
patent: 5252140 (1993-10-01), Kobayashi et al.
Hunger et al. Organometallics. “Syntheses of Heteronuclear Molybdenum/Bismuth Alkoxides Stabilized by Organic Ligands”. pp. 1044-1050. Oct. 1999.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Thin film ethanol sensor and a process for the preparation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thin film ethanol sensor and a process for the preparation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thin film ethanol sensor and a process for the preparation will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3411130

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.