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RuO2-SnO2-IrO2/Ti 계 혼합산화물 전극의 양극산화에 대한 회토류원소의 영향
윤경석(Kyung Suk Yun),이진식(Jin Sik Lee),이철태(Chul Tae Lee) 한국화학공학회 1997 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.35 No.2
Adding of rare earth elements such as Ho₂O₃, Sm₂O₃, Er₂O₃, Y₂O₃, Nd₂O₃and La₂O₃ on the RuO₂-SnO₂-IrO₂/Ti mixed oxide electrode enhanced the durability of this mixed oxide electrode, respectively. In every case of the addition of various rare earth element, durability was enhanced and oxygen evolution overvoltage was decreased in order of Ho₂O₃>Sm₂O₃>Er₂O₃,>Y₂O₃>Nd₂O₃>La₂O₃. When 1 wt% of Ho₂O₃ oxide was doped especially, the oxygen evolution overvoltage of that electrode become lower than that of the mixed oxide electrode itself.