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- W38241362 abstract "La propriété de differentiation énantioface (p.d.e.) de catalyseurs au Ni modifiés par l'acide tartrique (A.T.) dépend de la nature du NiO précurseur et du mode de préparation. Un traitement acide du Ni réduit (HNi) avant modification par A.T., ou des modifications par A.T. à pH faible ou à haute température permettent d'améliorer le p.d.e. Ces traitements élimineraient préférentiellement les parties amorphes de HNi correspondant à des sites de non differentiation énantioface. The enantioface-differentiating ability (e.d.a.) of tartaric acid (TA) modified reduced nickel catalyst (TA-MHNi) was found to be strongly affected by the sort of nickel oxide employed as a starting material and the preparative variations. The acidic and high temperature modification or acid-treatment of reduced nickel (HNi) before TA-modification was useful to eliminate the factors giving a low e.d.a. The amorphous parts of HNi were suggested to provide non-enantioface-differentiating sites and be preferentially eliminated by the acidic and high temperature modification or treatment." @default.
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- W38241362 date "1982-01-01" @default.
- W38241362 modified "2023-09-27" @default.
- W38241362 title "Modification of Nickel Surface With Optically Active Substrate: The Method and Mechanism" @default.
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- W38241362 doi "https://doi.org/10.1016/s0167-2991(09)61410-5" @default.
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