NDLI: Gold Nanoclusters Confined in a Supercage of Y Zeolite for Aerobic Oxidation of HMF under Mild $Conditions^{†}$

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Gold Nanoclusters Confined in a Supercage of Y Zeolite for Aerobic Oxidation of HMF under Mild $Conditions^{†}$

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Gold Nanoclusters Confined in a Supercage of Y Zeolite for Aerobic Oxidation of HMF under Mild $Conditions^{†}$

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Xu, Jie Zhang, Junjie Huang, Yizheng Ma, Hong Du, Zhongtian Cai, Jiaying Song, Qi
Description	Author Affiliation: Cai J ( Dalian National Laboratory for Clean Energy, State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023 (P.R. China), Fax: (+86) 411-84379245)
Abstract	Au nanoclusters with an average size of approximately 1 nm size supported on HY zeolite exhibit a superior catalytic performance for the selective oxidation of 5-hydroxymethyl-2-furfural (HMF) into 2,5-furandicarboxylic acid (FDCA). It achieved >99 % yield of 2,5-furandicarboxylic acid in water under mild conditions (60 °C, 0.3 MPa oxygen), which is much higher than that of Au supported on metal oxides/hydroxide $(TiO_{2},$ $CeO_{2},$ and $Mg(OH)_{2})$ and channel-type zeolites (ZSM-5 and H-MOR). Detailed characterizations, such as X-ray diffraction, transmission electron microscopy, $N_{2}-physisorption,$ and $H_{2}-temperature-programmed$ reduction (TPR), revealed that the Au nanoclusters are well encapsulated in the HY zeolite supercage, which is considered to restrict and avoid further growing of the Au nanoclusters into large particles. The acidic hydroxyl groups of the supercage were proven to be responsible for the formation and stabilization of the gold nanoclusters. Moreover, the interaction between the hydroxyl groups in the supercage and the Au nanoclusters leads to electronic modification of the Au nanoparticles, which is supposed to contribute to the high efficiency in the catalytic oxidation of HMF to FDCA.
ISSN	09476539
e-ISSN	15213765
Journal	Chemistry - A European Journal
Issue Number	42
Volume Number	19
Language	English
Publisher	Wiley-VCH;ChemPubSoc Europe
Publisher Date	2013-10-11
Publisher Place	Germany
Access Restriction	Open
Subject Keyword	Dicarboxylic Acids Chemistry Chemical Synthesis Furaldehyde Analogs & Derivatives Furans Metal Nanoparticles Yttrium Zeolites Catalysis Oxidation-Reduction Temperature Research Support, Non-U.S. Gov't
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Catalysis

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