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- W2074577341 abstract "Two supported amorphous Ni-B catalysts on active carbon (AC) were prepared by altering the impregnation sequence of the reductant, KBH4, and the nickel salt, NiCl2. The catalytic activities of the as-prepared catalysts were measured through liquid phase hydrogenation of 4,4′-dinitro-diphenylether under moderate pressure. It is found that conventional impregnation sequence (catalyst denoted as Ni-B/AC-2) led to considerable blockade of the pores of the support, while impregnating KBH4 first (catalyst denoted as Ni-B/AC-1) resulted in larger Ni–B grain size. The two factors coincidentally compensate each other, leading to identical active surface areas. However, the turn over frequency (TOF) value over Ni-B/AC-1 is triple that over Ni-B/AC-2, which is mainly attributed to the different reducing environment caused by different impregnation sequences leading to Ni–B alloys with different compositions and structures." @default.
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- W2074577341 date "2002-03-01" @default.
- W2074577341 modified "2023-10-16" @default.
- W2074577341 title "Characterization and catalytic behavior of amorphous Ni-B/AC catalysts prepared in different impregnation sequences" @default.
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- W2074577341 doi "https://doi.org/10.1016/s0926-860x(01)00983-8" @default.
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