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  • 09월 08일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제116회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Magnetically recyclable bimetallic Pd-Pt-Fe3O4 as catalysts for reduction of nitrocompounds [우수포스터상]

2015년 9월 8일 13시 29분 23초
ORGN.P-454 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
10월 15일 (목요일) 11:00~12:30
저자 및
송예미, 변상문, 김병문*
서울대학교 화학부, Korea

We report the synthesis of bimetallic nanoflake-shaped Pd-Pt-Fe3O4 nanoparticles (NPs) and their application to the reduction of nitro- compounds. Using simple hydrothermal procedure, we decorated nano sized crystals of platinum and palladium on the Fe3O4 NPs’ surface. The nanoflake-shaped Pd-Pt-Fe3O4 NPs were very efficient in effecting the one-pot cascade catalysis of dehydrogenation of ammonia borane and reduction of nitro compounds to anilines in methanol at room temperature. Development of efficient methods for the reduction of nitro compounds becomes one of the important synthetic methods in relation with the advent of various medicinal and display materials. A series of aromatic nitro compounds were reduced with excellent conversions and yields to desired products in a very short time (5min). The reactions using the Pd-Pt-Fe3O4 catalyst proceeded faster than those using either Pd-Fe3O4, Pt-Fe3O4 or the combination of both Pt-Fe3O4 and Pd-Fe3O4 catalysts, confirming a unique “synergistic effect” of the bimetallic nano-catalyst system. The catalyst could be recycled through the use of an external magnet in a very straightforward manner and was reusable for over 250 times without loss of its catalytic activity. Thus, this new catalyst could offer a very sustainable, useful and environment-friendly tool for potential industrial applications in the reduction of nitro compounds.