Ar-BIANs and related α-diimine Co complexes were wet impregnated onto Vulcan® XC 72 R carbon black powder and used as precursors for the synthesis of heterogeneous supported nanoscale catalysts by pyrolysis under argon at 800 °C. The catalytic materials feature a core-shell structure composed of metallic Co and Co oxides decorated with nitrogen-doped graphitic layers (NGr). These catalysts display high activity in the liquid phase hydrogenation of aromatic nitro compounds (110 °C, 50 bar H2) to give chemoselectively substituted aryl amines. The catalytic activity is closely related to the amount and type of nitrogen atoms in the final catalytic material, which suggests a heterolytic activation of dihydrogen.

Co-based heterogeneous catalysts from well-defined Α-diimine complexes : Discussing the role of nitrogen / D. Formenti, F. Ferretti, C. Topf, A. Surkus, M. Pohl, J. Radnik, M. Schneider, K. Junge, M. Beller, F. Ragaini. - In: JOURNAL OF CATALYSIS. - ISSN 0021-9517. - 351(2017 Jul), pp. 79-89.

Co-based heterogeneous catalysts from well-defined Α-diimine complexes : Discussing the role of nitrogen

D. Formenti
Co-primo
;
F. Ferretti
Co-primo
;
F. Ragaini
2017

Abstract

Ar-BIANs and related α-diimine Co complexes were wet impregnated onto Vulcan® XC 72 R carbon black powder and used as precursors for the synthesis of heterogeneous supported nanoscale catalysts by pyrolysis under argon at 800 °C. The catalytic materials feature a core-shell structure composed of metallic Co and Co oxides decorated with nitrogen-doped graphitic layers (NGr). These catalysts display high activity in the liquid phase hydrogenation of aromatic nitro compounds (110 °C, 50 bar H2) to give chemoselectively substituted aryl amines. The catalytic activity is closely related to the amount and type of nitrogen atoms in the final catalytic material, which suggests a heterolytic activation of dihydrogen.
cobalt; heterolytic activation; hydrogenation; kinetic; nitro compounds; catalysis; physical and theoretical chemistry
Settore CHIM/03 - Chimica Generale e Inorganica
Settore CHIM/06 - Chimica Organica
lug-2017
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/545048
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