Direct Hydroxylation of Phenol to Dihydroxybenzenes by H<sub>2</sub>O<sub>2</sub> and Fe-based Metal-Organic Framework Catalyst at Room Temperature

Direct Hydroxylation of Phenol to Dihydroxybenzenes by H<sub>2</sub>O<sub>2</sub> and Fe-based Metal-Organic Framework Catalyst at Room Temperature

A semi-crystalline iron-based metal-organic framework (MOF), in particular Fe-BTC, that contained 20 wt.% Fe, was sustainably synthesized at room temperature and extensively characterized. Fe-BTC nanopowders could be used as an efficient heterogeneous catalyst for the synthesis of dihydroxybenzenes...

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Main Authors: Alma D. Salazar-Aguilar, Gonzalo Vega, Jose A. Casas, Sofía Magdalena Vega-Díaz, Ferdinando Tristan, David Meneses-Rodríguez, Manuel Belmonte, Asunción Quintanilla
Format: Article
Language:English
Published: MDPI AG 2020-02-01
Series:Catalysts
Subjects:
fe-btc
mof
phenol hydroxylation
dihydroxybenzenes
selective oxidation
Online Access:https://www.mdpi.com/2073-4344/10/2/172
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spelling doaj-59840ffc43fc41b5861edeb17ba327672020-11-25T01:42:25ZengMDPI AGCatalysts2073-43442020-02-0110217210.3390/catal10020172catal10020172Direct Hydroxylation of Phenol to Dihydroxybenzenes by H<sub>2</sub>O<sub>2</sub> and Fe-based Metal-Organic Framework Catalyst at Room TemperatureAlma D. Salazar-Aguilar0Gonzalo Vega1Jose A. Casas2Sofía Magdalena Vega-Díaz3Ferdinando Tristan4David Meneses-Rodríguez5Manuel Belmonte6Asunción Quintanilla7Departamento de Ingeniería Química, Tecnológico Nacional de Mexico, Instituto Tecnológico de Celaya, Av. García Cubas Pte # 600 esq. Avenida Tecnológico, Celaya 38010, Guanajuato, MexicoChemical Engineering Department, Universidad Autónoma de Madrid, Ctra. Colmenar km 15, 28049 Madrid, SpainChemical Engineering Department, Universidad Autónoma de Madrid, Ctra. Colmenar km 15, 28049 Madrid, SpainDepartamento de Ingeniería Química, Tecnológico Nacional de Mexico, Instituto Tecnológico de Celaya, Av. García Cubas Pte # 600 esq. Avenida Tecnológico, Celaya 38010, Guanajuato, MexicoDepartamento de Ingeniería Química, Tecnológico Nacional de Mexico, Instituto Tecnológico de Celaya, Av. García Cubas Pte # 600 esq. Avenida Tecnológico, Celaya 38010, Guanajuato, MexicoCátedras-CONACYT CINVESTAV – Mérida, Ctra. Antigua a Progreso Km 6, Cordemex 97310, Mérida, Yucatán, MexicoInstitute of Ceramics and Glass (ICV-CSIC), Campus de Cantoblanco, Kelsen 5, 28049 Madrid, SpainChemical Engineering Department, Universidad Autónoma de Madrid, Ctra. Colmenar km 15, 28049 Madrid, SpainA semi-crystalline iron-based metal-organic framework (MOF), in particular Fe-BTC, that contained 20 wt.% Fe, was sustainably synthesized at room temperature and extensively characterized. Fe-BTC nanopowders could be used as an efficient heterogeneous catalyst for the synthesis of dihydroxybenzenes (DHBZ), from phenol with hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>), as oxidant under organic solvent-free conditions. The influence of the reaction temperature, H<sub>2</sub>O<sub>2</sub> concentration and catalyst dose were studied in the hydroxylation performance of phenol and MOF stability. Fe-BTC was active and stable (with negligible Fe leaching) at room conditions. By using intermittent dosing of H<sub>2</sub>O<sub>2</sub>, the catalytic performance resulted in a high DHBZ selectivity (65%) and yield (35%), higher than those obtained for other Fe-based MOFs that typically require reaction temperatures above 70 &#176;C. The long-term experiments in a fixed-bed flow reactor demonstrated good Fe-BTC durability at the above conditions.https://www.mdpi.com/2073-4344/10/2/172fe-btcmofphenol hydroxylationdihydroxybenzenesselective oxidation
collection DOAJ
language English
format Article
sources DOAJ
author Alma D. Salazar-Aguilar
Gonzalo Vega
Jose A. Casas
Sofía Magdalena Vega-Díaz
Ferdinando Tristan
David Meneses-Rodríguez
Manuel Belmonte
Asunción Quintanilla
spellingShingle Alma D. Salazar-Aguilar
Gonzalo Vega
Jose A. Casas
Sofía Magdalena Vega-Díaz
Ferdinando Tristan
David Meneses-Rodríguez
Manuel Belmonte
Asunción Quintanilla
Direct Hydroxylation of Phenol to Dihydroxybenzenes by H<sub>2</sub>O<sub>2</sub> and Fe-based Metal-Organic Framework Catalyst at Room Temperature
Catalysts
fe-btc
mof
phenol hydroxylation
dihydroxybenzenes
selective oxidation
author_facet Alma D. Salazar-Aguilar
Gonzalo Vega
Jose A. Casas
Sofía Magdalena Vega-Díaz
Ferdinando Tristan
David Meneses-Rodríguez
Manuel Belmonte
Asunción Quintanilla
author_sort Alma D. Salazar-Aguilar
title Direct Hydroxylation of Phenol to Dihydroxybenzenes by H<sub>2</sub>O<sub>2</sub> and Fe-based Metal-Organic Framework Catalyst at Room Temperature
title_short Direct Hydroxylation of Phenol to Dihydroxybenzenes by H<sub>2</sub>O<sub>2</sub> and Fe-based Metal-Organic Framework Catalyst at Room Temperature
title_full Direct Hydroxylation of Phenol to Dihydroxybenzenes by H<sub>2</sub>O<sub>2</sub> and Fe-based Metal-Organic Framework Catalyst at Room Temperature
title_fullStr Direct Hydroxylation of Phenol to Dihydroxybenzenes by H<sub>2</sub>O<sub>2</sub> and Fe-based Metal-Organic Framework Catalyst at Room Temperature
title_full_unstemmed Direct Hydroxylation of Phenol to Dihydroxybenzenes by H<sub>2</sub>O<sub>2</sub> and Fe-based Metal-Organic Framework Catalyst at Room Temperature
title_sort direct hydroxylation of phenol to dihydroxybenzenes by h<sub>2</sub>o<sub>2</sub> and fe-based metal-organic framework catalyst at room temperature
publisher MDPI AG
series Catalysts
issn 2073-4344
publishDate 2020-02-01
description A semi-crystalline iron-based metal-organic framework (MOF), in particular Fe-BTC, that contained 20 wt.% Fe, was sustainably synthesized at room temperature and extensively characterized. Fe-BTC nanopowders could be used as an efficient heterogeneous catalyst for the synthesis of dihydroxybenzenes (DHBZ), from phenol with hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>), as oxidant under organic solvent-free conditions. The influence of the reaction temperature, H<sub>2</sub>O<sub>2</sub> concentration and catalyst dose were studied in the hydroxylation performance of phenol and MOF stability. Fe-BTC was active and stable (with negligible Fe leaching) at room conditions. By using intermittent dosing of H<sub>2</sub>O<sub>2</sub>, the catalytic performance resulted in a high DHBZ selectivity (65%) and yield (35%), higher than those obtained for other Fe-based MOFs that typically require reaction temperatures above 70 &#176;C. The long-term experiments in a fixed-bed flow reactor demonstrated good Fe-BTC durability at the above conditions.
topic fe-btc
mof
phenol hydroxylation
dihydroxybenzenes
selective oxidation
url https://www.mdpi.com/2073-4344/10/2/172
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