Predicting distribution of phosphoric acid and water in high-temperature polymer electrolyte membrane gas cellular

Schematic of the cathode catalyst layer according to the agglomerate assumption. Credit score: Solar Mu

Top-temperature polymer electrolyte membrane gas cellular (HT-PEMFC) can also be carried out in electrical automobiles and marine energy provides.

Alternatively, the electrolyte within the HT-PEMFC is targeted phosphoric acid, which migrates from the cathode to the anode right through gas cellular operation, resulting in phosphoric acid redistribution and thereby affecting the multiphase mass switch and electrochemical response throughout the gas cellular.

Just lately, a analysis workforce led through Prof. Solar Gongquan and Prof. Wang Suli from the Dalian Institute of Chemical Physics (DICP) of the Chinese language Academy of Sciences (CAS) advanced a singular multicomponent multiphase mannequin to are expecting the distribution of phosphoric acid and water in HT-PEMFC, which is able to lend a hand to higher perceive the results of fabrics, buildings, and running prerequisites at the multiphase delivery of water and phosphoric acid.

The learn about was once revealed in AIChE Magazine on April 9.

The researchers explored the delivery mechanism of water and phosphoric acid throughout the HT-PEMFC and its have an effect on on gas cellular efficiency through establishing a 3-dimensional, non-isothermal, multiphase HT-PEMFC mannequin according to a catalytic layer round agglomerate sub-model.

This mannequin may are expecting the efficiency of the gas cellular. It integrated multicomponent multiphase delivery of phosphoric acid and water mannequin, the catalytic layer round agglomerate mannequin, the prospective delivery mannequin, and the power delivery mannequin.

The simulation effects confirmed that the phosphoric acid focus within the anode was once upper than that within the cathode, and about 20% of the water generated from the cathode subtle to the anode within the type of liquid segment.

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“This learn about supplies a theoretical foundation for the optimization of the design of fabrics, construction, and running prerequisites,” stated Prof. Solar.

New gas cells that may perform at temperatures between -20 to 200°C

Additional information:
Mu Solar et al, Investigation of phosphoric acid and water delivery within the excessive temperature proton trade membrane gas cells the usage of a multiphase mannequin, AIChE Magazine (2022). DOI: 10.1002/aic.17708
Supplied through
Chinese language Academy of Sciences

Predicting distribution of phosphoric acid and water in high-temperature polymer electrolyte membrane gas cellular (2022, April 25)
retrieved 25 April 2022

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