Title:
CROCONAINE POLYMER SENSOR FOR TRACE DETECTION OF NITROGEN DIOXIDE IN HIGH HUMIDITY ENVIRONMENT, AND PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/279250
Kind Code:
A1
Abstract:
A croconaine polymer sensor for trace detection of nitrogen dioxide in a high humidity environment, and an application thereof. The sensor is a nitrogen dioxide resistive sensor based on a naphthalenediamine croconaine polymer containing a conjugated double-ion structure, and comprises a super-hydrophobic layer, an interdigitated electrode, and a coating material coated on the interdigitated electrode. The hydrophobic layer is polyvinylidene fluoride, and can resist 70% of ambient humidity. The coating material is a naphthalenediamine croconaine polymer containing a conjugated double-ion structure. The sensor can stably work at high humidity and room temperature, can detect a concentration as low as 40 ppb with a response/reply time of 182 s/165 s, has excellent selectivity, and can effectively eliminate the interference of other gases.
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Inventors:
LU JIANMEI (CN)
HE JINGHUI (CN)
HE JINGHUI (CN)
Application Number:
PCT/CN2021/104610
Publication Date:
January 12, 2023
Filing Date:
July 05, 2021
Export Citation:
Assignee:
UNIV SOOCHOW (CN)
International Classes:
G01N27/12
Foreign References:
| CN112268936A | 2021-01-26 | |||
| CN1823272A | 2006-08-23 | |||
| CN110128649A | 2019-08-16 | |||
| CN111077190A | 2020-04-28 | |||
| US4142400A | 1979-03-06 | |||
| US4236307A | 1980-12-02 |
Attorney, Agent or Firm:
SUZHOU CREATOR PATENT AND TRADEMARK AGENCY, LTD (CN)
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