Experimental Process Of Formic Acid

Formic acid

Name

Formic acid

Molecular Formula

CH2O2

Experimental Process

The preparation method of MEA for hydrogen production by point hydrolysis is as follows: evenly coating the dispersed carbon powder on the hydrophobic treated carbon as a support layer; And then uniformly coating the supergenerated and dispersed Pd/C and commercial Pt/C electrocatalysts on the above support layers to obtain anode and cathode catalytic layers, respectively; Place the prepared cathode and anode catalytic layers on both sides of the Nafion 115 film and perform hot pressing treatment to obtain a sandwich structure MEA

Result

The effects of temperature and electrolytic current on the hydrogen performance of formic acid electrolyte were investigated. From the experimental results under constant current conditions, it can be seen from the curve of the solution voltage changing with temperature that the electrolysis voltage decreases from about 0.54V at 30 ℃ to 0.43V at 60 ℃ as the temperature increases. At higher temperatures, the electrocatalytic oxidation of formic acid reacts faster, and the electrolytic voltage curve tends to be more stable, which is more conducive to the migration and transfer of reactants and products, as well as better maintaining gas-liquid two-phase equilibrium. Due to the rapid catalytic oxidation of formic acid and the large amount of gas generated, it is necessary for MEA to have better mass transfer performance and gas-liquid two-phase equilibrium ability; In response to this characteristic, we further optimized the structure of MEA: reducing the thickness of the gas diffusion layer and appropriately increasing its hydrophobicity to enhance mass transfer and improve electrolytic performance