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학술발표회초록보기

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  • 09월 12일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제110회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Recovery behavior of calcined layered gadolinium hydroxychloride

등록일
2012년 8월 30일 16시 11분 54초
접수번호
1438
발표코드
MAT.P-1364 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 17일 (수요일) 16:00~19:00
발표형식
포스터
발표분야
재료화학
저자 및
공동저자
이병일, 변송호
경희대학교 화학과, Korea
Layered rare-earth hydroxides (LRHs), composed of positively charged rare-earth layers and exchageable inorganic/organic anions in interlayer, are structurally similar to layered double hydroxides (LDHs). Particularly, the recovery ability of LDHs after annealing (from mixed oxide to essentially layered structure), called ‘memory effect’, have an advantage for loading more molecules into interlayer space. In this study, we have investigated recovery behavior of calcined layered gadolinium hydroxychloride, which is different from those of LDHs under specific conditions. By rehydration and rehyroxylation in aqueous solution containing organic and inorganic anions, the intralayer structure of LGdHs calcined up to 600°C can be reconstructed to recover the intercalation ability. This calcinations temperature capable of after-reconstruction is quite high compared to those of classical LDHs. High thermal stability and reconstructability would provide the LRH family, including LGdH, with many advantages for high temperature applications.

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