Patents by Inventor Yunwen SHEN

Yunwen SHEN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Iridium/iridium oxide electrode for quantitatively detecting pH in sulfide ion environment, and preparation method and use thereof
    Patent number: 11885762
    Abstract: An iridium/iridium oxide electrode for quantitatively detecting pH in a sulfide ion environment, and a preparation method and use thereof are provided. In the present disclosure, a sensitive layer of the iridium/iridium oxide electrode is coated with a sulfonated polyether ether ketone/ionic liquid (SPEEK/IL) sandwich structure. The SPEEK/IL sandwich structure includes two layers of SPEEK/SiOx/IL composite film and one layer of SPEEK film. The SPEEK film is arranged on an outermost layer. The SPEEK/IL sandwich structure covered on a surface of the electrode has an isolation effect on ions other than hydrogen ions, and especially shows a desirable isolation effect on sulfide ions with a smaller ion size. In this way, the electrode is not easily disturbed by redox substances in a complex aqueous environment.
    Type: Grant
    Filed: June 19, 2023
    Date of Patent: January 30, 2024
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Yiwen Pan, Yunwen Shen, Xiaoping Wang, Zhentao Sun
  • REFERENCE ELECTRODE WITH SPEEK/IL SANDWICH STRUCTURE, AND PREPARATION METHOD AND USE THEREOF
    Publication number: 20230333047
    Abstract: A reference electrode with a sulfonated polyether ether ketone/ionic liquid (SPEEK/IL) sandwich structure, and a preparation method and use thereof are provided. In the reference electrode, an end of a reference electrode main body is provided with the SPEEK/IL sandwich structure; the SPEEK/IL sandwich structure includes two layers of SPEEK/IL composite film and one layer of SPEEK film, and the SPEEK film is arranged at an outermost layer of the SPEEK/IL sandwich structure.
    Type: Application
    Filed: June 19, 2023
    Publication date: October 19, 2023
    Applicant: ZHEJIANG UNIVERSITY
    Inventors: Yiwen PAN, Yunwen SHEN, Xiaoping WANG, Zhentao SUN
  • IRIDIUM/IRIDIUM OXIDE ELECTRODE FOR QUANTITATIVELY DETECTING pH IN SULFIDE ION ENVIRONMENT, AND PREPARATION METHOD AND USE THEREOF
    Publication number: 20230333046
    Abstract: An iridium/iridium oxide electrode for quantitatively detecting pH in a sulfide ion environment, and a preparation method and use thereof are provided. In the present disclosure, a sensitive layer of the iridium/iridium oxide electrode is coated with a sulfonated polyether ether ketone/ionic liquid (SPEEK/IL) sandwich structure. The SPEEK/IL sandwich structure includes two layers of SPEEK/SiOx/IL composite film and one layer of SPEEK film. The SPEEK film is arranged on an outermost layer. The SPEEK/IL sandwich structure covered on a surface of the electrode has an isolation effect on ions other than hydrogen ions, and especially shows a desirable isolation effect on sulfide ions with a smaller ion size. In this way, the electrode is not easily disturbed by redox substances in a complex aqueous environment.
    Type: Application
    Filed: June 19, 2023
    Publication date: October 19, 2023
    Applicant: ZHEJIANG UNIVERSITY
    Inventors: Yiwen PAN, Yunwen SHEN, Xiaoping WANG, Zhentao SUN