公开(公告)号：US20230312376A1

公开(公告)日：2023-10-05

申请号：US17837016

申请日：2022-06-09

Applicant: Nanjing University of Science and Technology

Inventor： Weiqing HAN ,  Kajia WEI ,  Kaiqiang SHI ,  Xiaodong LIU ,  Xiuyun SUN ,  Jiansheng LI ,  Jinyou SHEN

IPC: C02F1/461 ,  C25B1/30 ,  C25B11/032 ,  C25B11/065 ,  C02F1/467

CPC classification number: C02F1/46109 ,  C25B1/30 ,  C25B11/032 ,  C25B11/065 ,  C02F1/4672 ,  C02F2001/46171 ,  C02F2001/46166 ,  C02F2001/46142 ,  C02F2305/026 ,  C02F2305/023 ,  C02F2301/046 ,  C02F2201/46135 ,  C02F2201/4614 ,  C02F2209/38 ,  C02F2101/34

Abstract: A gas diffusion electrode includes a carbon fiber tube, a support layer, and a catalyst layer. The carbon fiber tube is straight and functions as a substrate. The support layer includes a carbon black-polytetrafluoroethylene (PTFE) coating, and is disposed on the substrate. The catalyst layer includes carbon black, anhydrous ethanol, and PTFE, and is disposed on the support layer. The gas diffusion electrode has a diameter of 3-20 mm and a length of 50-500 mm.

公开(公告)号：US20230071700A1

公开(公告)日：2023-03-09

申请号：US17697874

申请日：2022-03-17

Applicant: Nanjing University of Science and Technology

Inventor： Weiqing HAN ,  Kajia WEI ,  Xu YIN ,  Jie ZHANG ,  Lu WANG ,  Zijie ZHOU ,  Xiaodong LIU ,  Xiuyun SUN ,  Jiansheng LI ,  Jinyou SHEN

IPC: C02F1/461 ,  C02F1/467

Abstract: An electrode includes a microporous titanium substrate coated with a catalytic layer, and the catalytic layer includes magnetic SnO2—Sb particles. The magnetic SnO2—Sb particles are attached to the microporous titanium substrate through an external magnetic field. The microporous titanium substrate includes a plurality of membrane pores having a pore size of 5-50 μm that is smaller than a particle size of the magnetic SnO2—Sb particles.

公开(公告)号：US20220315455A1

公开(公告)日：2022-10-06

申请号：US17707941

申请日：2022-03-29

Applicant: Nanjing Huagong Innovation Environment Research Institute Co., Ltd. ,  Nanjing University of Science and Technology

Inventor： Weiqing HAN ,  Kajia WEI ,  Fang HUANG ,  Siqi LIU ,  Run LIU ,  Juncheng DAI

IPC: C02F1/467 ,  C02F1/66 ,  C02F1/461

Abstract: Disclosed is a device for selective oxidation of macromolecular organic pollutants using free radicals produced in a heterogeneous Fenton reaction. The device includes a heterogeneous Fenton reaction unit and an electrochemical cell. The heterogeneous Fenton reaction unit includes a reactor and an anion exchange membrane. The anion exchange membrane is disposed in the reactor and separates the reactor into a first chamber and a second chamber. The first chamber is filled with a catalyst and the wastewater to be treated; and the second chamber is filled with a dielectric material. The electrochemical cell is configured to supply an electric field to the reactor, so that organic acids generated by a heterogeneous Fenton reaction move from the first chamber into the second chamber.

公开(公告)号：US20230129237A1

公开(公告)日：2023-04-27

申请号：US17797927

申请日：2021-02-12

Applicant: UNIVERSITAT DE BARCELONA ,  NANJING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Ignacio SIRÉS SADORNIL ,  Anlin XU ,  Enrique BRILLAS COSO ,  Weiqing HAN

IPC: C02F1/72 ,  C02F1/32 ,  C02F1/461 ,  C02F1/467

Abstract: A water-processing electrochemical reactor that comprises a cylindrical inner anode (73), an outer tubular cathode (74), an intermediate chamber between the anode (73) and the cathode (74) and being crossed by the water, an outer shell (77) surrounding the cathode (74), a water inlet (71) and a water outlet (78), and a gas inlet (80) and gas outlet (79) connected to the outer shell (77) and to the gas chamber. The cathode surrounds the inner anode (73) and is porous to gas. A gas chamber is defined between the cathode (74) and the outer shell (77). The gas chamber contains a gas comprising oxygen and is at an overpressure that forces the gas through the porous cathode (74).

公开(公告)号：US20220332608A1

公开(公告)日：2022-10-20

申请号：US17418144

申请日：2020-09-02

Applicant: NANJING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Weiqing HAN ,  Ruiqian LIU ,  Siqi LIU ,  Kajia WEI ,  Wei LI ,  Lu WANG ,  Lianjun WANG ,  Xiaodong LIU ,  Jiansheng LI ,  Xiuyun SUN ,  Jinyou SHEN

IPC: C02F1/467 ,  C02F1/461 ,  C25D5/56 ,  C25D9/04

Abstract: The present invention relates to the technical field of electrocatalytic electrode preparation, and discloses a lead dioxide-carbon nanotube adsorptive electrochemical submicroelectrode, a preparation method, and use thereof. The electrochemical submicroelectrode according to the present invention comprises multiple layers of orderly arranged spherical lead dioxide submicroholes communicating with each other, where the carbon nanotubes are partially or completely inserted (in the form of twigs) in the lead dioxide hole and in the wall of the hole. The combined effect of adsorption and catalysis inside the submicroreactor effectively solves the problems of low catalytic efficiency and diffusion control associated with the conventional flat lead dioxide electrode, thus greatly improving the electrochemical catalytic performance of the electrode.