Effects of Temperature on Loading Ratios of Hydrogen (Deuterium) in Palladium Cathodes under the Galvanostatic Condition
نویسنده
چکیده
On the basis of the thermokinetics of the hydrogen (deuterium) evolution reaction and the thermodynamics of Pd+H(D) system, we analytically and numerically discuss effects of temperature on the loading ratio of hydrogen (deuterium) absorption into electrodes of β-phase PdHx (PdDx) under the galvanostatic charging condition. It is found that the change of the loading ratio with temperature depends on the absorption enthalpy, adsorption enthalpy and apparent activation energy of the exchange current density of the Tafel reaction. Our theoretical predictions fit the available experimental results well.
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