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Zirconia electrolyte for solid oxide electrolysis cell and fabrication method thereof
The present invention relates to a zirconia electrolyte for a solid oxide electrolytic cell and a manufacturing method thereof. Yttrium oxide and calcium oxide are simultaneously substituted and employed as stabilizers. The composition of chemical formula 1 ((Y_2O_3)_x(CaO)_y(ZrO_2)_(1-x-y)) is satisfied. An oxygen ion conductivity decreasing rate decreases to 7% or less after 100 hours in a reducing atmosphere of 850℃. containing hydrogen : water vapor in a volume ratio of 1 : 1. Therefore, the solid oxide electrolytic cell has high oxygen ion conductivity when applied to the solid oxide electrolytic cell and has increased durability even in a high-temperature steam environment.
본 발명에 의한 고체산화물 전해셀용 지르코니아 전해질은 이트륨 산화물 및 칼슘 산화물이 동시에 안정화제로 고용되어 산소 이온 전도도가 높고 고온 수전해 환경에서 내구도가 뛰어난 장점이 있다.
Zirconia electrolyte for solid oxide electrolysis cell and fabrication method thereof
The present invention relates to a zirconia electrolyte for a solid oxide electrolytic cell and a manufacturing method thereof. Yttrium oxide and calcium oxide are simultaneously substituted and employed as stabilizers. The composition of chemical formula 1 ((Y_2O_3)_x(CaO)_y(ZrO_2)_(1-x-y)) is satisfied. An oxygen ion conductivity decreasing rate decreases to 7% or less after 100 hours in a reducing atmosphere of 850℃. containing hydrogen : water vapor in a volume ratio of 1 : 1. Therefore, the solid oxide electrolytic cell has high oxygen ion conductivity when applied to the solid oxide electrolytic cell and has increased durability even in a high-temperature steam environment.
본 발명에 의한 고체산화물 전해셀용 지르코니아 전해질은 이트륨 산화물 및 칼슘 산화물이 동시에 안정화제로 고용되어 산소 이온 전도도가 높고 고온 수전해 환경에서 내구도가 뛰어난 장점이 있다.
Zirconia electrolyte for solid oxide electrolysis cell and fabrication method thereof
고체산화물 전해셀용 지르코니아 전해질 및 이의 제조방법
LIM KYOUNG TAE (Autor:in) / LEE HEE LAK (Autor:in) / SHIN HYEONG CHEOL (Autor:in)
23.11.2023
Patent
Elektronische Ressource
Koreanisch
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