Catalytic Glucose Conversion over Zeolitic Stannosilicates: A Comparative Study of Structural Properties

Cho, Yunhye; Kweon, Sungjoon; Park, Jun Seong; Park, Min Bum

doi:10.1021/acssuschemeng.3c06007

“…Furthermore, Cho et al investigated the one-pot synthesis of 5-HMF from glucose on four types of Sn-containing zeolites with different structures. 150 Sn-MWW(3D) with the structure of nanoparticles and Sn-MWW(2D) with layers were prepared. Moreover, Sn-Beta(IT) and Sn-Beta(TD) were synthesized by interzeolite transformation and top-down methods, respectively.…”

Section: Application Of Heteroatom Metal Zeolites In the Conversion O...mentioning

confidence: 99%

Heteroatom Lewis acid zeolites: synthesis, characterization and application in the conversion of biomass-derived oxygenates

Yang,

Ge,

Zhu

2024

Green Chem.

3

0

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High‐Efficiency Solar Transformation of Sugars via a Heterogenous Gallium(III) Catalyst

Shi,

Tana,

Yang

et al. 2024

Angewandte Chemie

0

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Extremely limited research exploring the photocatalytic potential of main group metals, such as aluminum, gallium, and tin, has been undertaken due to their weak light harvesting properties. This study reports the efficient transformation of sugars to 5‐hydroxymethylfurfural (HMF) with high yield employing an original heterogenous photocatalyst comprising a gallium(III) complex immobilized on an alumina support. Under visible light irradiation, the reaction rate of HMF formation is ~143 times higher than the equivalent thermal reaction performed in the absence of light. The turnover number (TON) the heterogeneous gallium (III) photocatalyst was as high as 1500, which was two orders of magnitude higher than the TON of the homogeneous gallium (III) system. It is proposed that photoirradiation significantly enhances the Lewis acidity of the catalyst by forming a semi‐coordination state between gallium(III) and N‐donor ligands, enabling the increased interaction of reactant sugar molecules with gallium(III) active sites. Consistent with this, the photoresponsive coordination of the gallium(III) complex and the abstraction of the hydroxy group by the metal under irradiation with visible light is observed by NMR spectroscopy for the first time. These findings demonstrate that efficient photocatalysts derived from the main group elements can facilitate biomass conversion using visible light.

show abstract

High‐Efficiency Solar Transformation of Sugars via a Heterogenous Gallium(III) Catalyst

Shi,

Tana,

Yang

et al. 2024

Angew Chem Int Ed

0

View full text Add to dashboard Cite

Extremely limited research exploring the photocatalytic potential of main group metals, such as aluminum, gallium, and tin, has been undertaken due to their weak light harvesting properties. This study reports the efficient transformation of sugars to 5‐hydroxymethylfurfural (HMF) with high yield employing an original heterogenous photocatalyst comprising a gallium(III) complex immobilized on an alumina support. Under visible light irradiation, the reaction rate of HMF formation is ~143 times higher than the equivalent thermal reaction performed in the absence of light. The turnover number (TON) the heterogeneous gallium (III) photocatalyst was as high as 1500, which was two orders of magnitude higher than the TON of the homogeneous gallium (III) system. It is proposed that photoirradiation significantly enhances the Lewis acidity of the catalyst by forming a semi‐coordination state between gallium(III) and N‐donor ligands, enabling the increased interaction of reactant sugar molecules with gallium(III) active sites. Consistent with this, the photoresponsive coordination of the gallium(III) complex and the abstraction of the hydroxy group by the metal under irradiation with visible light is observed by NMR spectroscopy for the first time. These findings demonstrate that efficient photocatalysts derived from the main group elements can facilitate biomass conversion using visible light.

show abstract

Catalytic Glucose Conversion over Zeolitic Stannosilicates: A Comparative Study of Structural Properties

Cited by 3 publications

References 50 publications

Heteroatom Lewis acid zeolites: synthesis, characterization and application in the conversion of biomass-derived oxygenates

Heteroatom Lewis acid zeolites: synthesis, characterization and application in the conversion of biomass-derived oxygenates

High‐Efficiency Solar Transformation of Sugars via a Heterogenous Gallium(III) Catalyst

High‐Efficiency Solar Transformation of Sugars via a Heterogenous Gallium(III) Catalyst

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