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Nano Research 2010, 3(11): 757-763 https://doi.org/10.1007/s12274-010-0043-3
Research Article | Open Access | Issue | Published: 12 October 2010

In Situ Loading of Cu2O Nanoparticles on a Hydroxyl Group Rich TiO2 Precursor as an Excellent Catalyst for the Ullmann Reaction

Show Author's Information Fang Niu1,2,  Yan Jiang1,2,  Weiguo Song1( )
Beijing National Laboratory for Molecular Sciences (BNLMS) Laboratory for Molecular Nanostructures and Nanotechnology Institute of Chemistry, Chinese Academy of SciencesBeijing 100190 China
The Graduate University of the Chinese Academy of SciencesYuquanlu, Beijing 100049 China
Keywords:
Cuprous oxide, in situ, composite structure, titania precursor, Ullmann type cross coupling
Cite this article:
Niu F, Jiang Y, Song W. In Situ Loading of Cu2O Nanoparticles on a Hydroxyl Group Rich TiO2 Precursor as an Excellent Catalyst for the Ullmann Reaction. Nano Research, 2010, 3(11): 757-763. https://doi.org/10.1007/s12274-010-0043-3
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Abstract Full text About this article

An in situ method has been used to load Cu2O nanoparticles on the surface of a hydroxyl group rich TiO2 precursor. Cu2O nanoparticles are formed by in situ reduction of Cu(OH)2 with Sn2+ ions linked to the surface of the TiO2 precursor. The initial Cu2O nanoparticles serve as seeds for subsequent particle growth. The resulting Cu2O nanoparticles are evenly dispersed on the surface of the TiO2 precursor, and are heat and air stable. The as-prepared composite is an excellent catalyst for Ullmann type cross coupling reactions of aryl halides with phenol. The composite catalyst also showed good stability, remaining highly active after five consecutive runs.


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In Situ Loading of Cu2O Nanoparticles on a Hydroxyl Group Rich TiO2 Precursor as an Excellent Catalyst for the Ullmann Reaction

Show Author's information Fang Niu1,2, Yan Jiang1,2, Weiguo Song1( )
Beijing National Laboratory for Molecular Sciences (BNLMS) Laboratory for Molecular Nanostructures and Nanotechnology Institute of Chemistry, Chinese Academy of SciencesBeijing 100190 China
The Graduate University of the Chinese Academy of SciencesYuquanlu, Beijing 100049 China

Abstract

An in situ method has been used to load Cu2O nanoparticles on the surface of a hydroxyl group rich TiO2 precursor. Cu2O nanoparticles are formed by in situ reduction of Cu(OH)2 with Sn2+ ions linked to the surface of the TiO2 precursor. The initial Cu2O nanoparticles serve as seeds for subsequent particle growth. The resulting Cu2O nanoparticles are evenly dispersed on the surface of the TiO2 precursor, and are heat and air stable. The as-prepared composite is an excellent catalyst for Ullmann type cross coupling reactions of aryl halides with phenol. The composite catalyst also showed good stability, remaining highly active after five consecutive runs.

Keywords: Cuprous oxide, in situ, composite structure, titania precursor, Ullmann type cross coupling

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Publication history

Received: 11 August 2010
Revised: 08 September 2010
Accepted: 08 September 2010
Published: 12 October 2010
Issue date: November 2010

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