Heterogeneous magnetic catalyst;
Palladium nanoparticle;
Cysteine amino acid;
Solvent-free aerobic oxidation of alcohol;
High selectivity;
BENZYL ALCOHOL;
MESOPOROUS SILICA;
SIZE CONTROL;
EFFICIENT;
FERRITE;
PD;
D O I:
10.1016/j.catcom.2013.09.029
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
In this paper, Fe3O4 nanoparticles were coated by a number of amino acids, e.g. cysteine, serine, glycine and beta-alanine, via a simple method. Because of the surface modification of the magnetic nanoparticles with amino acid, the obtained magnetic nanocomposite is able to trap palladium nanoparticles through a strong interaction between the metal nanoparticles and the functional groups of amino acids. Among the synthesized nanocomposites, Fe3O4/cysteine-Pd exhibited the highest catalytic performance and excellent selectivity in the solvent-free aerobic oxidation of various alcohols, along with high level of reusability. (C) 2013 Elsevier B.V. All rights reserved.
机构:
Indian Inst Chem Technol, Div Organ Chem, Hyderabad 500007, Andhra Pradesh, IndiaIndian Inst Chem Technol, Div Organ Chem, Hyderabad 500007, Andhra Pradesh, India
Reddy, B. V. Subba
Krishna, A. Siva
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Indian Inst Chem Technol, Div Organ Chem, Hyderabad 500007, Andhra Pradesh, IndiaIndian Inst Chem Technol, Div Organ Chem, Hyderabad 500007, Andhra Pradesh, India
Krishna, A. Siva
Ganesh, A. V.
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Indian Inst Chem Technol, Div Organ Chem, Hyderabad 500007, Andhra Pradesh, IndiaIndian Inst Chem Technol, Div Organ Chem, Hyderabad 500007, Andhra Pradesh, India
Ganesh, A. V.
Kumar, G. G. K. S. Narayana
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Indian Inst Chem Technol, Div Organ Chem, Hyderabad 500007, Andhra Pradesh, IndiaIndian Inst Chem Technol, Div Organ Chem, Hyderabad 500007, Andhra Pradesh, India