Patents by Inventor RAN-RAN CAO

RAN-RAN CAO 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).

  • Method for making catalyst for ozone decomposition
    Patent number: 11364483
    Abstract: A method for making a catalyst for ozone decomposition includes: adding a reducing agent into a water solution of a permanganate salt to obtain a first reaction liquid, and heating the first reaction liquid under continuous stirring to form a birnessite-type manganese dioxide; and adding the birnessite-type manganese dioxide into a water solution of an ammonium salt to obtain a second reaction liquid, and heating the second reaction liquid under continuous stirring to form the catalyst.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: June 21, 2022
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Peng-Yi Zhang, Ran-Ran Cao, Yang Liu
  • METHOD FOR MAKING CATALYST FOR OZONE DECOMPOSITION
    Publication number: 20210001310
    Abstract: A method for making a catalyst for ozone decomposition includes: adding a reducing agent into a water solution of a permanganate salt to obtain a first reaction liquid, and heating the first reaction liquid under continuous stirring to form a birnessite-type manganese dioxide; and adding the birnessite-type manganese dioxide into a water solution of an ammonium salt to obtain a second reaction liquid, and heating the second reaction liquid under continuous stirring to form the catalyst.
    Type: Application
    Filed: September 17, 2020
    Publication date: January 7, 2021
    Inventors: PENG-YI ZHANG, RAN-RAN CAO, YANG LIU