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Titolo:
Fe2O3 macroporous resin nanocomposites: Some novel highly efficient catalysts for hydroxylation of phenol with H2O2
Autore:
Wang, DA; Liu, ZQ; Liu, FQ; Ai, X; Zhang, XT; Cao, Y; Yu, JF; Wu, TH; Bai, YB; Li, TJ; Tang, XY;
Indirizzi:
Jilin Univ, Dept Chem, Changchun 130023, Peoples R China Jilin Univ Changchun Peoples R China 130023 chun 130023, Peoples R China
Titolo Testata:
APPLIED CATALYSIS A-GENERAL
fascicolo: 1-2, volume: 174, anno: 1998,
pagine: 25 - 32
SICI:
0926-860X(19981116)174:1-2<25:FMRNSN>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
SELECTIVE OXIDATION; MOLECULAR-SIEVE; CLUSTERS; OXIDES; HYDROCARBONS; EPOXIDATION; PARTICLES; ALKENES;
Keywords:
beta-FeOOH; resin; nanocomposite; hydroxylation of phenol;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
36
Recensione:
Indirizzi per estratti:
Indirizzo: Wang, DA Jilin Univ, Dept Chem, Changchun 130023, Peoples R China Jilin Univ Changchun Peoples R China 130023 23, Peoples R China
Citazione:
D.A. Wang et al., "Fe2O3 macroporous resin nanocomposites: Some novel highly efficient catalysts for hydroxylation of phenol with H2O2", APP CATAL A, 174(1-2), 1998, pp. 25-32

Abstract

A series of iron-oxide nanoparticles were prepared inside the pores of macroporous resins by in situ forced hydrolysis of Fe3+ ions chemisorbed at the pore walls. The resulting composites were identified with transmission electron microscopy (TEM), UV-visible and near IR spectroscopy and surface photovoltage spectroscopy (SPS). The phase of the resulting iron-oxide panicles embedded in resin was beta-FeOOH. The particles ranged from 2 to 5 nm insize and were spherical in shape. These composites were used in catalysis for hydroxylation of phenol with H2O2. They showed very high hydroxylation activity due to nanosized beta-FeOOH particles inside resins with very little aggregation and also showed easy physical separation due to the polymer matrix. In addition, the acidic environment around the beta-FeOOH particlesaccelerated their hydroxylation activity. (C) 1998 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 06/04/20 alle ore 01:38:50