Hydrogen pump apparatus was made up of CaZr0.9In0.1O3-αproton conductor as solid electrolyte

Ni-Cr wire as electrode wire.The molten aluminum was dehydrogenated by short-circuiting the pump.Furthermore

both the gas carrying and extracting hydrogen methods were used to increase the dehydrogenation rate.Meanwhile

the hydrogen sensor was employed to measure the hydrogen content in the molten aluminum quantitatively to monitor the dehydrogenation effect.The results reveal that under the extracting hydrogen condition

the hydrogen content can be reduced from 79.84mL/100g·Al to 0.15mL/100g·Al.It proves that short-circuit method to dehydrogenate aluminum is practicable.In addition

the dehydrogenation effect was analyzed with the pump applied 1.5Vvoltage.The results reveal that the hydrogen content is dropped from 6.43mL/100g·Al to 3.67mL/100g·Al.