Performance Optimization And Dynamic Response Of Proton Exchange Membrane Water Electrolysis Cell

Proton exchange membrane water electrolysis technology is an effective way to achieve efficient cleaning and low-cost hydrogen production in the future,but the electrolysis efficiency,hydrogen production cost and system stability are still the problems of industrialization.In this paper,we focus on the low-cost,high-efficiency,high-stability proton exchange membrane water electrolysis hydrogen production system by selecting excellent diffusion layers,optimizing precious metal catalysts and studying the influence of volatility on the performance of proton exchange membrane water electrolysis cells.The main work of this paper has done two aspects,as follows:On the one hand,the work is to optimize the performance of the proton exchange membrane water electrolysis cell.Firstly,the sintered titanium plate with different coating is screened,and then the carbon paper,titanium felt and sintered titanium plate are used as the anode diffusion layer,and the whole electrolytic cell is assembled,and electrochemical testing and physical characterization are carried out for evaluation and analysis.Experimental data were provided for selecting materials suitable for the anode diffusion layer of the proton exchange membrane water cell.Then,for the use of proton exchange membrane water electrolysis tank anode and cathode precious metal catalysts,six samples with different anode and cathode loadings were prepared,and the catalyst was optimized and performance analysis to reduce proton exchange membrane water as much as possible.The use of precious metal catalysts in electrolytic cells.On the other hand,the work is to analyze the dynamic response of the proton exchange membrane water electrolysis cell.In the production of hydrogen by proton exchange membrane water electrolysis cells and renewable energy,the output power fluctuation range of renewable energy is very large,which requires the hydrogen production system to flexibly cope with the impact of power changes,but for this electrolysis current Fluctuation causes less transient behavior of the electrolytic cell.Therefore,this paper runs the fluctuating current for 1000 hours through the simulated electrolytic cell,and investigates the performance change of the electrolytic cell through online and offline analysis,which can effectively utilize the proton exchange membrane water electrolysis cell.Large-scale hydrogen production from renewable energy provides a scientific basis.