一种合金化有序阵列气体扩散层的制备方法及其制备的扩散层
By employing an alloyed ordered array gas diffusion layer preparation method, the problems of poor conductivity and high conduction resistance in existing gas diffusion layers are solved, enabling efficient gas-liquid transport and low-energy-consumption electrolytic hydrogen production processes, which are applicable to PEM water electrolysis and fuel cells.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SANTACC ENERGY CO LTD
- Filing Date
- 2024-01-10
- Publication Date
- 2026-07-17
AI Technical Summary
Existing gas diffusion layers suffer from poor conductivity, high resistance to gas-liquid conduction, low energy utilization and high energy consumption due to oxidation problems in the field of hydrogen electrolysis. Furthermore, existing preparation processes are complex and unsuitable for large-scale production.
An alloyed ordered array gas diffusion layer was prepared by configuring titanium powder, carbon/graphite powder and thermally decomposed tungsten, molybdenum, tantalum and niobium salt powders with specific particle sizes, combined with powder metallurgy pore-forming technology and isostatic pressing, to form a structure that combines ordered and disordered pores, and then performing surface modification treatment to prepare a diffusion layer with good conductivity and oxidation resistance.
It improves gas-liquid transport efficiency, reduces ohmic resistance and mass transfer resistance, enhances contact with membrane electrode assembly, reduces energy consumption in electrolyzers and fuel cells, and exhibits good chemical and thermal stability.
Smart Images
Figure CN117900458B_ABST