Title:
METAL IRIDIUM OXIDE ELECTRODE CAPABLE OF QUANTITATIVELY DETECTING PH IN SULFUR ION ENVIRONMENT, PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/143315
Kind Code:
A1
Abstract:
A metal iridium oxide electrode capable of quantitatively detecting the pH in a sulfur ion environment, a preparation method therefor, and the use thereof. A metal iridium oxide electrode sensitive layer is coated with a SPEEK/IL sandwich structure, wherein the SPEEK/IL sandwich structure comprises two layers of SPEEK/SiOx/IL composite films and a layer of a SPEEK film, and the SPEEK film layer is located at the outermost layer. The SPEEK/IL sandwich structure covering the surface of the electrode has an isolation effect on ions other than hydrogen ions, and in particular has a good blocking effect on sulfur ions with a relatively small ion size, such that the electrode is not easily disturbed by redox substances in a complex water quality environment. Due to the characteristics of a compact structure, a high mechanical strength and not being easily disturbed, the potential drift is relatively small, and the electrode is suitable for long-term pH value detection and has wide application prospects in the fields of deep sea detection, chemical engineering, etc.
Inventors:
PAN YIWEN (CN)
SHEN YUNWEN (CN)
HU PEI (CN)
SUN ZHENTAO (CN)
SHEN YUNWEN (CN)
HU PEI (CN)
SUN ZHENTAO (CN)
Application Number:
PCT/CN2021/140251
Publication Date:
July 07, 2022
Filing Date:
December 22, 2021
Export Citation:
Assignee:
UNIV ZHEJIANG (CN)
International Classes:
G01N27/30; G01N27/333
Foreign References:
| CN112798669A | 2021-05-14 | |||
| CN1869675A | 2006-11-29 | |||
| CN105047844A | 2015-11-11 | |||
| CN101210902A | 2008-07-02 | |||
| CN103698377A | 2014-04-02 |
Other References:
ZHUN LI ET AL.: "Addition of modified hollow mesoporous organosilica in anhydrous SPEEK/ IL composite membrane enhances its proton conductivity", JOURNAL OF MEMBRANE SCIENCE, vol. 620, 11 November 2020 (2020-11-11), XP086456985, ISSN: 0376-7388, DOI: 10.1016/j.memsci.2020.118897
GUERREIRO DA TRINDADE LETICIA, ET AL.: "Modification of Sulfonated Poly(ether ether ketone) Membranes by Impregnation With the Ionic Liquid 1-Butyl-3-methylimidazolium tetrafluoroborate for Proton Exchange Membrane Fuel Cell Applications", POLYMER ENGINEERING AND SCIENCE, vol. 56, no. 9, 15 April 2016 (2016-04-15), pages 1037 - 1044, XP055947417, ISSN: 1548-2634, DOI: 10.1002/pen.24334
GUERREIRO DA TRINDADE LETICIA, ET AL.: "Modification of Sulfonated Poly(ether ether ketone) Membranes by Impregnation With the Ionic Liquid 1-Butyl-3-methylimidazolium tetrafluoroborate for Proton Exchange Membrane Fuel Cell Applications", POLYMER ENGINEERING AND SCIENCE, vol. 56, no. 9, 15 April 2016 (2016-04-15), pages 1037 - 1044, XP055947417, ISSN: 1548-2634, DOI: 10.1002/pen.24334
Attorney, Agent or Firm:
HANGZHOU QIUSHI PATENT OFFICE CO., LTD. (CN)
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