Patents by Inventor Jiuqiang Li

Jiuqiang Li 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).

  • Patent number: 11349116
    Abstract: Provided are a MoSxOy/carbon nanocomposite material, a preparation method therefor and a use thereof. In the MoSxOy/carbon nanocomposite material, 2.5?x?3.1, 0.2?y?0.7, and the mass percent of MoSxOy is 5%-50% based on the total mass of the nanocomposite material. When the MoSxOy/carbon nanocomposite material is used as a catalyst for an electrocatalytic hydrogen evolution reaction, the current density is 150 mA/cm2 or more at an overpotential of 300 mV. The difference between this performance and the performance of a commercial 20% Pt/C catalyst is relatively small, or even equivalent; and this performance is far better than the catalytic performance of an existing MOS2 composite material. The MoSxOy/carbon nanocomposite material also has a good catalytic stability, and after 8,000 catalytic cycles, the current density thereof is only decreased by 3%, thus exhibiting a very good catalytic performance and cycle stability.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: May 31, 2022
    Assignee: Peking University
    Inventors: Maolin Zhai, Pengfei Cao, Jing Peng, Jiuqiang Li
  • Patent number: 11201323
    Abstract: A MoSx/carbon black nanocomposite material, and a manufacturing method and application thereof. In the MoSx/carbon black nanocomposite material, 2?x?2.3. The weight percentage of MoSx as part of the total weight of the nanocomposite material is 5-50%. The MoSx/carbon black nanocomposite material has 20% higher performance when compared to a commercial 20% Pt/C catalyst. The manufactured MoSx/carbon black nanocomposite material also has excellent catalytic stability. There is no significant decrease in catalytic performance of the material after 5,000 catalytic cycles.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: December 14, 2021
    Assignee: Peking University
    Inventors: Maolin Zhai, Pengfei Cao, Jing Peng, Jiuqiang Li
  • Publication number: 20190267620
    Abstract: A MoSx/carbon black nanocomposite material, and a manufacturing method and application thereof. In the MoSx/carbon black nanocomposite material, 2?x?2.3. The weight percentage of MoSx as part of the total weight of the nanocomposite material is 5-50%. The MoSx/carbon black nanocomposite material has 20% higher performance when compared to a commercial 20% Pt/C catalyst. The manufactured MoSx/carbon black nanocomposite material also has excellent catalytic stability. There is no significant decrease in catalytic performance of the material after 5,000 catalytic cycles.
    Type: Application
    Filed: July 25, 2017
    Publication date: August 29, 2019
    Applicant: PEKING UNIVERSITY
    Inventors: Maolin ZHAI, Pengfei CAO, Jing PENG, Jiuqiang LI
  • Publication number: 20190237751
    Abstract: Provided are a MoSxOy/carbon nanocomposite material, a preparation method therefor and a use thereof. In the MoSxOy/carbon nanocomposite material, 2.5?x?3.1, 0.2?y?0.7, and the mass percent of MoSxOy is 5%-50% based on the total mass of the nanocomposite material. When the MoSxOy/carbon nanocomposite material is used as a catalyst for an electrocatalytic hydrogen evolution reaction, the current density is 150 mA/cm2 or more at an overpotential of 300 mV. The difference between this performance and the performance of a commercial 20% Pt/C catalyst is relatively small, or even equivalent; and this performance is far better than the catalytic performance of an existing MOS2 composite material. The MoSxOy/carbon nanocomposite material also has a good catalytic stability, and after 8,000 catalytic cycles, the current density thereof is only decreased by 3%, thus exhibiting a very good catalytic performance and cycle stability.
    Type: Application
    Filed: July 25, 2017
    Publication date: August 1, 2019
    Applicant: PEKING UNIVERSITY
    Inventors: Maolin ZHAI, Pengfei CAO, Jing PENG, Jiuqiang LI
  • Patent number: 7491757
    Abstract: The present invention provides a fully vulcanized thermoplastic elastomer comprising a rubber phase with a controllable particle size and a spheroidic shape, the preparation and use thereof. Fully vulcanized powdery rubber is blended with plastic by conventional method for blending rubbers, and thus obtaining a fully vulcanized thermoplastic elastomer, which comprises a rubber phase with a controllable particle size and a spheroidic shape, and which shows high tensile strength and high elongation at break, good appearance and good processibility.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: February 17, 2009
    Assignees: China Petroleum & Chemical Corporation, Beijing Research Institute of Chemical Industry China Petroleum & Chemical Corporation
    Inventors: Jinliang Qiao, Yiqun Liu, Xiaohong Zhang, Jianming Gao, Genshuan Wei, Shijun Zhang, Zhihai Song, Jiuqiang Li, Dechuan Zhuang
  • Patent number: 6998438
    Abstract: The present invention provides plastics with high toughness and the preparation thereof. The plastics with high toughness, which have the balance of stiffness and toughness, stable properties and good processability, are obtained by blending the rubber particles having an average particle size of 20 to 200 nm with the pseudoductile plastics, wherein the weight ratio of the rubber particles to the plastics is from 0.5:99.5 to 70:30. The present invention also provides plastics with both high stiffness and high toughness and the preparation thereof. The plastics with both high stiffness and high toughness, which have also an improved heat resistance and good processability, are prepared by blending the rubber particles having an average particle size of 20 to 500 nm and the crystalline plastics, wherein the amount of the rubber particles added in the plastics matrix is from 0.3 to 5 weight parts.
    Type: Grant
    Filed: April 18, 2002
    Date of Patent: February 14, 2006
    Assignees: China Petroleum & Chemical Corporation, Beijing Research Institute of Chemical Industry
    Inventors: Jinliang Qiao, Shijun Zhang, Xiaohong Zhang, Yiqun Liu, Jianming Gao, Wei Zhang, Genshuan Wei, Jingbo Shao, Hua Yin, Renli Zhai, Zhihai Song, Fan Huang, Jiuqiang Li
  • Patent number: 6838490
    Abstract: The present invention relates to a novel fully vulcanized powdery silicone rubber, preparation and use thereof. The fully vulcanized powdery silicone rubber is prepared from an latex of organosilicon polymer or copolymer with lower molecular weight via irradiation of high-energy rays. The gel content of the obtained fully vulcanized powdery silicone rubber is at least 60% by weight. The fully vulcanized powdery silicone rubber can be combined with various plastics and is very easy to be dispersed into plastic matrix, and can be used as toughening agent, processing aids or as additives for cosmetics, ink, paint and coatings.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: January 4, 2005
    Assignees: China Petroleum & Chemical Corporation, Beijing Research Institute of Chemical Industry China Petroleum & Chemical Corporation
    Inventors: Xiaohong Zhang, Jinliang Qiao, Genshuan Wei, Jianming Gao, Yiqun Liu, Shijun Zhang, Zhihai Song, Jiuqiang Li, Yicai Zhu
  • Publication number: 20030105217
    Abstract: The present invention relates to a novel fully vulcanized powdery silicone rubber, preparation and use thereof. The fully vulcanized powdery silicone rubber is prepared from an latex of organosilicon polymer or copolymer with lower molecular weight via irradiation of high-energy rays. The gel content of the obtained fully vulcanized powdery silicone rubber is at least 60% by weight. The fully vulcanized powdery silicone rubber can be combined with various plastics and is very easy to be dispersed into plastic matrix, and can be used as toughening agent, processing aids or as additives for cosmetics, ink, paint and coatings.
    Type: Application
    Filed: November 12, 2002
    Publication date: June 5, 2003
    Inventors: Xiaohong Zhang, Jinliang Qiao, Genshuan Wei, Jianming Gao, Yiqun Liu, Shijun Zhang, Zhihai Song, Jiuqiang Li, Yicai Zhu
  • Publication number: 20030045638
    Abstract: The present invention provides a fully vulcanized thermoplastic elastomer comprising a rubber phase with a controllable particle size and a spheroidic shape, the preparation and use thereof. Fully vulcanized powdery rubber is blended with plastic by conventional method for blending rubbers, and thus obtaining a fully vulcanized thermoplastic elastomer, which comprises a rubber phase with a controllable particle size and a spheroidic shape, and which shows high tensile strength and high elongation at break, good appearance and good processibility.
    Type: Application
    Filed: July 25, 2002
    Publication date: March 6, 2003
    Inventors: Jinliang Qiao, Yiqun Liu, Xiaohong Zhang, Jianming Gao, Genshuan Wei, Shijun Zhang, Zhihai Song, Jiuqiang Li, Dechuan Zhuang
  • Publication number: 20020188079
    Abstract: The present invention provides plastics with high toughness and the preparation thereof. The plastics with high toughness, which have the balance of stiffness and toughness, stable properties and good processability, are obtained by blending the rubber particles having an average particle size of 20 to 200 nm with the pseudoductile plastics, wherein the weight ratio of the rubber particles to the plastics is from 0.5:99.5 to 70:30. The present invention also provides plastics with both high stiffness and high toughness and the preparation thereof. The plastics with both high stiffness and high toughness, which have also an improved heat resistance and good processability, are prepared by blending the rubber particles having an average particle size of 20 to 500 nm and the crystalline plastics, wherein the amount of the rubber particles added in the plastics matrix is from 0.3 to 5 weight parts.
    Type: Application
    Filed: April 18, 2002
    Publication date: December 12, 2002
    Applicant: CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Jinliang Qiao, Shijun Zhang, Xiaohong Zhang, Yiqun Liu, Jianming Gao, Wei Zhang, Genshuan Wei, Jingbo Shao, Hua Yin, Renli Zhai, Zhihai Song, Fan Huang, Jiuqiang Li
  • Patent number: 6423760
    Abstract: The present invention provides a fully vulcanized powdery rubber having a particle size of from 20 to 2000 nm, its preparation and use. The vulcanized powdery rubber is obtained by irradiating a rubber latex having a particle size of from 20 to 2000 nm with a high-energy irradiation. The vulcanized powdery rubber is very easily to be dispersed into various plastics, and thus can be mixed with various plastics to prepare toughened plastics and fully valcanized thermoplastic elastomers.
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: July 23, 2002
    Assignees: China Petro-Chemical Corporation, Beijing Research Institute of Chemical Industry, Sinopec
    Inventors: Jinliang Qiao, Genshuan Wei, Xiaohong Zhang, Shijun Zhang, Jianming Gao, Wei Zhang, Yiqun Liu, Jiuqiang Li, Fengru Zhang, Renli Zhai, Jingbo Shao, Kunkai Yan, Hua Yin