A low-temperature proton conductor solid oxide electrolytic cell
A solid oxide, proton conductor technology, applied in the direction of electrolysis components, electrolysis process, electrodes, etc., can solve the problems of high cost, difficult utilization of waste heat, high operating temperature, and achieve the effect of reducing temperature
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Embodiment 1
[0021] Using NiO and BaCe 0.6 Zr 0.25 Y 0.15 o 3-δ , mixed at a weight ratio of 50:50, prepared a 0.5 mm thick hydrogen electrode substrate by dry pressing, and sintered at 1400 ° C for 4 hours to obtain a hydrogen electrode; coated with a layer containing BaCe 0.6 Zr 0.25 Y 0.15 o 3-δ A slurry with a thickness of 20 μm was sintered at 1600 °C for 2 h to obtain a hydrogen electrode / electrolyte assembly; the BaCe 0.6 Zr 0.25 Y 0.15 o 3-δ and BaCo 0.4 Fe 0.4 Zr 0.1 Y 0.1 o 3-δ After mixing at a weight ratio of 30:70, an oxygen electrode was prepared by screen printing, and sintered at 1000°C for 2 hours to obtain an electrolytic cell.
[0022] The electrochemical performance of the solid oxide electrolytic cell was tested using an electrochemical workstation. The performance test results of the solid oxide electrolytic cell show that at 600°C, 50ml / min of water vapor is passed through, and 0.4A / cm can be generated at an electrolytic voltage of 1.25V. 2 the electr...
Embodiment 2
[0024] Using NiO and BaCe 0.6 Zr 0.25 Y 0.15 o 3-δ , mixed at a weight ratio of 70:30, a 1.5 mm thick hydrogen electrode substrate was prepared by dry pressing, and sintered at 1200 ° C for 4 hours to obtain a hydrogen electrode; a layer containing BaCe 0.6 Zr 0.25 Y 0.15 o 3-δ A slurry with a thickness of 50 μm was sintered at 1700 °C for 2 h to obtain a hydrogen electrode / electrolyte assembly; the BaCe 0.6 Zr 0.25 Y 0.15 o 3-δ and BaCo 0.2 Fe 0.5 Zr 0.2 Y 0.1 o 3-δ After mixing at a weight ratio of 10:90, an oxygen electrode was prepared by screen printing, and sintered at 1400°C for 2 hours to obtain an electrolytic cell.
[0025] The electrochemical performance of the solid oxide electrolytic cell was tested using an electrochemical workstation. The performance test results of the solid oxide electrolytic cell show that at 400°C, 50ml / min water vapor can be introduced, and 0.3A / cm can be generated at an electrolytic voltage of 1.5V. 2 the electrolysis curre...
Embodiment 3
[0027] Using NiO and BaCe 0.6 Zr 0.25 Y 0.15 o 3-δ , after mixing at a weight ratio of 30:70, a hydrogen electrode substrate with a thickness of 1 mm was prepared by dry pressing, and sintered at 1200 ° C for 4 hours to obtain a hydrogen electrode; a layer containing BaCe was coated on it 0.6 Zr 0.25 Y 0.15 o 3-δ A slurry with a thickness of 10 μm was sintered at 1400 °C for 2 h to obtain a hydrogen electrode / electrolyte assembly; the BaCe 0.6 Zr 0.25 Y 0.15 o 3-δ and BaCo 0.4 Fe 0.2 Zr 0.3 Y 0.1 o 3-δ After mixing at a weight ratio of 40:60, an oxygen electrode was prepared by screen printing, and sintered at 1200°C for 2 hours to obtain an electrolytic cell.
[0028] The electrochemical performance of the solid oxide electrolytic cell was tested using an electrochemical workstation. The performance test results of the solid oxide electrolytic cell show that at 300°C, 50ml / min water vapor can be introduced, and 0.2A / cm can be generated at an electrolytic voltag...
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