A Channel Flow Cell with Double Disk Electrodes for Oxygen Electroreduction Study at Elevated Temperatures and Pressures: Theory
Journal of electroanalytical chemistry(2021)
摘要
A new double-disk-electrode channel flow cell has been designed, constructed and tested. A theoretical treatment and implicit finite difference numerical simulations are presented, which permit the computation of the hydrodynamic behavior of this cell under steady state conditions, i.e., the diffusion limited current at the working electrode and the collection efficiency of the detector. The simulated results are consistent with those measured experimentally, indicating that our simulations appropriately describe the hydrodynamic behavior of this cell. The oxygen reduction reaction (ORR) on a carbon-supported nanoparticle Pt catalyst at both room temperature and 110 degrees C were preliminarily studied with this cell.
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关键词
Double-disk-electrode channel flow cell,Hydrodynamics,Numerical simulations,Oxygen reduction reaction,Elevated temperature and pressure
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