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Hierarchically MOx@Nb-zeolites for the selective oxidation of HMF to HMFCA.

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Title: Hierarchically MOx@Nb-zeolites for the selective oxidation of HMF to HMFCA.
Authors: El Fergani, Magdi1 (AUTHOR), Candu, Natalia1 (AUTHOR), Granger, Pascal2 (AUTHOR), Coman, Simona M.1 (AUTHOR), Parvulescu, Vasile I.1 (AUTHOR) vasile.parvulescu@chimie.unibuc.ro
Source: Catalysis Today. Dec2022, Vol. 405, p267-276. 10p.
Subjects: Liquid nitrogen, Carbon dioxide, Zeolites, Oxidation
Abstract: The oxidation of 5-hydroxymethylfurfural (HMF) to 5-hydroxymethyl-2-furancarboxylic acid (HMFCA) has been investigated on MO x @Nb-zeolite catalytic systems (where MO x = CoO x , MnO x or FeO x and zeolite - USY and Beta) with hierarchical texture and acid-base properties. These catalysts were exhaustively characterized by several techniques such as XRD, adsorption-desorption of liquid nitrogen at 77 K, CO 2 - and NH 3 -TPD, DRIFT, XPS, and SS NMR. The new hierarchically catalysts produced HMFCA with a selectivity of 97.0% for a X HMF = 95.0% (Mn@Nb-Y30). A synergetic effect between MO x and Nb species in the activation of t -BuOOH and oxidation of HMF has been identified. The absence of FDCA in the reaction products using MOx@Nb-zeolite catalysts can be due to the preponderant presence of the acidic sites (associated to both framework and extra framework AlO x) which prevent a further oxidation of HMFCA to FDCA. [Display omitted] • Multifunctional hierarchically zeolites with non-precious metals. • Selective oxidation of HMF to HMFCA intermediate • The new combination of oxides avoids the use of homogeneous bases • Selective oxidation control through the AlO x framework [ABSTRACT FROM AUTHOR]
Copyright of Catalysis Today is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
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PubType: Academic Journal
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  Data: Hierarchically MOx@Nb-zeolites for the selective oxidation of HMF to HMFCA.
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  Data: <searchLink fieldCode="AR" term="%22El+Fergani%2C+Magdi%22">El Fergani, Magdi</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Candu%2C+Natalia%22">Candu, Natalia</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Granger%2C+Pascal%22">Granger, Pascal</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Coman%2C+Simona+M%2E%22">Coman, Simona M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Parvulescu%2C+Vasile+I%2E%22">Parvulescu, Vasile I.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> vasile.parvulescu@chimie.unibuc.ro</i>
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  Data: <searchLink fieldCode="JN" term="%22Catalysis+Today%22">Catalysis Today</searchLink>. Dec2022, Vol. 405, p267-276. 10p.
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  Data: <searchLink fieldCode="DE" term="%22Liquid+nitrogen%22">Liquid nitrogen</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon+dioxide%22">Carbon dioxide</searchLink><br /><searchLink fieldCode="DE" term="%22Zeolites%22">Zeolites</searchLink><br /><searchLink fieldCode="DE" term="%22Oxidation%22">Oxidation</searchLink>
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  Data: The oxidation of 5-hydroxymethylfurfural (HMF) to 5-hydroxymethyl-2-furancarboxylic acid (HMFCA) has been investigated on MO x @Nb-zeolite catalytic systems (where MO x = CoO x , MnO x or FeO x and zeolite - USY and Beta) with hierarchical texture and acid-base properties. These catalysts were exhaustively characterized by several techniques such as XRD, adsorption-desorption of liquid nitrogen at 77 K, CO 2 - and NH 3 -TPD, DRIFT, XPS, and SS NMR. The new hierarchically catalysts produced HMFCA with a selectivity of 97.0% for a X HMF = 95.0% (Mn@Nb-Y30). A synergetic effect between MO x and Nb species in the activation of t -BuOOH and oxidation of HMF has been identified. The absence of FDCA in the reaction products using MOx@Nb-zeolite catalysts can be due to the preponderant presence of the acidic sites (associated to both framework and extra framework AlO x) which prevent a further oxidation of HMFCA to FDCA. [Display omitted] • Multifunctional hierarchically zeolites with non-precious metals. • Selective oxidation of HMF to HMFCA intermediate • The new combination of oxides avoids the use of homogeneous bases • Selective oxidation control through the AlO x framework [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Catalysis Today is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Text: English
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        Type: general
      – SubjectFull: Carbon dioxide
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      – SubjectFull: Zeolites
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              Text: Dec2022
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