Development of ruthenium-hydroxyapatite-encapsulated superparamagnetic γ-Fe2O3 nanocrystallites as an efficient oxidation catalyst by molecular oxygen

K Mori, S Kanai, T Hara, T Mizugaki, K Ebitani…

文献索引：Motokura, Ken; Nishimura, Daisuke; Mori, Kohsuke; Mizugaki, Tomoo; Ebitani, Kohki; Kaneda, Kiyotomi Journal of the American Chemical Society, 2004 , vol. 126, # 18 p. 5662 - 5663

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被引用次数: 126

摘要

Magnetic γ-Fe 2 O 3 nanocrystallites dispersed in a hydroxyapatite matrix (HAP-γ-Fe 2 O 3 ) have been synthesized for the first time as a new catalyst support. The cation-exchange ability of the external HAP surface enables an equimolar substitution of Ru for Ca to form a catalytically active center (RuHAP-γ-Fe 2 O 3 ). Characterization by several spectroscopic methods demonstrated the formation of γ-Fe 2 O 3 nanocrystallites within the HAP matrix having a mean diameter ...