화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2005년 가을 (10/28 ~ 10/29, 건국대학교)
권호 9권 2호
발표분야 촉매
제목 A study on the OSC characteristics of CeO2-ZrO2 mixed oxides prepared by continuous hydrothermal synthesis in supercritical water
초록 CeO2-ZrO2 mixed oxide is an important component as oxygen storage material for example in the three-way catalysts. The continuous hydrothermal synthesis in supercritical water was used as a new synthesis method to obtain CeO2-ZrO2 mixed oxide with better OSC properties. This method has an advantage that high crystalline nanoparticles of homogeneous complex metal oxide as well as single metal oxide could be produced easily and rapidly. The OSC characteristics of CeO2-ZrO2 mixed oxide prepared by the supercritical synthesis were compared with those by the conventional co-precipitation method through physical characterizations with N2 adsorption, TPR, and O2-uptake.
저자 김정랑, 임선기
소속 한국과학기술원
키워드 supercritical water; hydrothermal synthesis; co-precipitation; ceria-zirconia; OSC; TPR; oxygen uptake
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