CN-224216778-U - Catalyst conductivity testing device

CN224216778UCN 224216778 UCN224216778 UCN 224216778UCN-224216778-U

Abstract

The utility model discloses a catalyst conductivity testing device which comprises a testing clamp, an electric heater, a humidifier, a temperature sensor and a humidity sensor, wherein the testing clamp is composed of a first flow channel plate and a second flow channel plate, catalyst films needing to be detected are fixed between the first flow channel plate and the second flow channel plate in a threaded connection mode, the surfaces of the first flow channel plate and the second flow channel plate, which are in contact with the catalyst films, are inner surfaces, the other surfaces of the first flow channel plate and the second flow channel plate are outer surfaces, the electric heater is arranged on the outer surfaces of the first flow channel plate and the second flow channel plate and used for heating the testing clamp, a moisture outlet of the humidifier is communicated with an air inlet on the clamp through an air channel and used for outputting moisture into the clamp, the temperature sensor is arranged in the temperature detection holes inside the first flow channel plate and the second flow channel plate and used for monitoring temperature in real time, and the humidity sensor is arranged in the air channel and used for monitoring humidity in real time.

Inventors

FU FUHUA
XIA WEI
HUANG HAILONG
LIN QIHANG
ZHAO LITAO
XU JIANHUA

Assignees

华燚新能源材料(上海)有限公司

Dates

Publication Date: 20260508
Application Date: 20250428

Claims (10)

1. A catalyst conductivity testing device is characterized by comprising a testing clamp, an electric heater, a humidifier, a temperature sensor and a humidity sensor, wherein, The test fixture consists of a first flow channel plate and a second flow channel plate, wherein a catalyst film to be detected is fixed between the first flow channel plate and the second flow channel plate in a threaded connection mode, the surfaces of the first flow channel plate and the second flow channel plate, which are in contact with the catalyst film, are inner surfaces, and the other surfaces are outer surfaces; The electric heaters are arranged on the outer surfaces of the first flow channel plate and the second flow channel plate and used for heating the test fixture; the moisture outlet of the humidifier is communicated with the air inlet on the clamp through an air path and is used for outputting moisture into the clamp; The temperature sensor is arranged in the temperature detection holes in the first flow channel plate and the second flow channel plate and used for monitoring temperature in real time, and the humidity sensor is arranged in the air channel and used for monitoring humidity in real time.
2. The apparatus according to claim 1, wherein the first flow field plate and the second flow field plate are provided with 1 through hole at each edge, the through holes of the first flow field plate are smooth circular holes, the through holes of the second flow field plate are screw holes, and a tightening force is applied between the first flow field plate and the second flow field plate by means of screw holes.
3. The device according to claim 2, wherein the first flow field plate and the second flow field plate are fixedly provided with a plurality of conductive posts respectively in a central region of the outer surface, one ends of the plurality of conductive posts are flush with the inner surface, and the other ends of the conductive posts are higher than the outer surface for connecting electrode clamps.
4. A device for testing the conductivity of a catalyst according to claim 3, wherein the areas of the first flow field plate and the second flow field plate where the plurality of conductive posts are disposed are slightly smaller than the area of the effective test area.
5. The device for measuring the electrical conductivity of a catalyst according to claim 4, wherein the number of the plurality of conductive posts is 4 to 8.
6. The device of claim 4, wherein the effective test areas on the inner surfaces of the first flow field plate and the second flow field plate are linear flow channels or serpentine flow channels.
7. The device of claim 6, wherein the number of channels in the active test area is 6-30, and the depth of the channels is 1-4mm.
8. The catalyst conductivity testing device according to claim 1, wherein the first flow field plate and the second flow field plate are each nonconductive, insulating plates.
9. The device for testing the electrical conductivity of the catalyst according to claim 1, wherein one side of the first flow channel plate and one side of the second flow channel plate are provided with the air inlet, the other side is provided with the air outlet, one end of the air channel is communicated with the air inlet, and the other end of the air channel is communicated with the air outlet.
10. The apparatus of claim 9, wherein the air inlet and the air outlet on one side and the other side of the first flow field plate are located at opposite ends, respectively.

Description

Catalyst conductivity testing device Technical Field The utility model belongs to the field of electrolytic water and fuel cell catalysts, and particularly relates to a catalyst conductivity testing device. Background With the rapid development of clean energy technology, water electrolysis hydrogen production and fuel cells are receiving a great deal of attention as key technologies for high-efficiency energy conversion and storage. The catalyst plays a core role in both technologies, and its performance directly affects energy conversion efficiency and equipment stability. Among these, the electrical conductivity of a catalyst is one of the key parameters that determine its performance, as it is directly related to charge transport efficiency, reaction kinetics, and the operating performance of the overall device. In the field of hydrogen production by water electrolysis, the catalyst needs to efficiently catalyze Hydrogen Evolution Reaction (HER) and Oxygen Evolution Reaction (OER) under high current density, and the high conductivity can obviously reduce ohmic loss of an electrode and improve energy conversion efficiency. Also, in the field of fuel cells, the conductivity of the catalyst directly affects the power output and durability of Proton Exchange Membrane Fuel Cells (PEMFCs). Therefore, developing an accurate, reliable and efficient catalyst conductivity test method has important significance for optimizing catalyst design, screening high-performance materials and promoting commercial application of water electrolysis hydrogen production and fuel cell technology. However, the existing catalyst conductivity testing device is complex in structure and complex in operation, and cannot test the actual electronic conductivity at different working temperatures, pressures and humidities, so that deviation exists between a testing result and actual performances. Therefore, there is a need to develop a catalyst conductivity testing device suitable for complex catalyst systems, capable of simulating actual operating conditions, and simple to operate. Disclosure of utility model In view of the above problems, the present utility model provides a device for testing the electrical conductivity of a catalyst. The catalyst conductivity testing device comprises a testing clamp, an electric heater, a humidifier, a temperature sensor and a humidity sensor, wherein, The test fixture consists of a first flow channel plate and a second flow channel plate, a catalyst film to be detected is fixed between the first flow channel plate and the second flow channel plate in a threaded connection mode, the surfaces of the first flow channel plate and the second flow channel plate, which are in contact with the catalyst film, are inner surfaces, and the other surfaces are outer surfaces; The electric heaters are arranged on the outer surfaces of the first flow channel plate and the second flow channel plate and used for heating the test fixture; the moisture outlet of the humidifier is communicated with the air inlet on the clamp through an air path and is used for outputting moisture into the clamp; The temperature sensor is arranged in the temperature detection holes in the first flow channel plate and the second flow channel plate and used for monitoring temperature in real time, and the humidity sensor is arranged in the air channel and used for monitoring humidity in real time. Preferably, each edge of the first flow channel plate and the second flow channel plate is provided with 1 through hole, the through holes of the first flow channel plate are smooth round holes, the through holes of the second flow channel plate are threaded holes, and a tightening force is applied between the upper end plate and the lower end plate through the through hole screws. Preferably, the first flow channel plate and the second flow channel plate are respectively fixedly provided with a plurality of conductive posts in the central area of the outer surface, one ends of the conductive posts are flush with the inner surface, and the other ends of the conductive posts are higher than the outer surface for connecting an electrode clamp. Preferably, the areas of the areas where the plurality of conductive posts are disposed on the first and second flow field plates are slightly smaller than the areas of the effective test areas. Preferably, the number of the plurality of conductive posts is 4-8. Preferably, the effective test areas on the inner surfaces of the first and second flow field plates are linear flow channels or serpentine flow channels. Preferably, the number of the flow channels in the effective test area is 6-30, and the depth of the flow channels is 1-4mm. Preferably, the first runner plate and the second runner plate are each nonconductive insulating plates. Preferably, one side of the first flow channel plate and one side of the second flow channel plate are provided with the air inlet, the other side of the first flow channel