Efficient hydrogenolysis of 5-hydroxymethylfurfural to 2,5-dimethylfuran over a cobalt and copper bimetallic catalyst on N-graphene-modified Al<sub>2</sub>O<sub>3</sub>

Guo, Weiwei; Liu, Hangyu; Zhang, Suqi; Han, Hongling; Jiang, Tao; Wu, Tianbin

doi:10.1039/c6gc02630c

Cited by 95 publications

(65 citation statements)

References 19 publications

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“…The Cu−Ni/TiO 2 catalyst showed good stability, regenerability, reactivity, and MF selectivity and outperformed monometallic Cu catalysts in all performance metrics under similar conditions. 41,43 Finally, Cu−Ni/TiO 2 showed excellent selectivity toward methylated furans in HMF and FF/HMF coprocessing reactions.…”

Section: Acs Catalysismentioning

confidence: 98%

Support Induced Control of Surface Composition in Cu–Ni/TiO₂ Catalysts Enables High Yield Co-Conversion of HMF and Furfural to Methylated Furans

et al. 2017

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5-(Hydroxymethyl)furfural (HMF) and furfural (FF) have been identified as valuable biomass-derived fuel precursors suitable for catalytic hydrodeoxygenation (HDO) to produce high octane fuel additives such dimethyl furan (DMF) and methyl furan (MF), respectively. In order to realize economically viable production of DMF and MF from biomass, catalytic processes with high yields, low catalyst costs, and process simplicity are needed. Here, we demonstrate simultaneous coprocessing of HMF and FF over Cu−Ni/ TiO 2 catalysts, achieving 87.5% yield of DMF from HMF and 88.5% yield of MF from FF in a one pot reaction. The Cu−Ni/TiO 2 catalyst exhibited improved stability and regeneration compared to Cu/TiO 2 and Cu/Al 2 O 3 catalysts for FF HDO, with a ∼7% loss in FF conversion over four sequential recycles, compared to a ∼50% loss in FF conversion for Cu/Al 2 O 3 and a ∼30% loss in conversion for Cu/TiO 2. Characterization of the Cu−Ni/TiO 2 catalyst by X-ray photoelectron spectroscopy, scanning transmission electron microscopy, and H 2 −temperature-programmed reduction and comparison to monometallic Cu and Ni on Al 2 O 3 and TiO 2 and bimetallic Cu−Ni/Al 2 O 3 catalysts suggest that the unique reactivity and stability of Cu−Ni/TiO 2 derives from support-induced metal segregation in which Cu is selectively enriched at the catalyst surface, while Ni is enriched at the TiO 2 interface. These results demonstrate that Cu−Ni/TiO 2 catalysts promise to be a system capable of integrating directly with a combined HMF and FF product stream from biomass processing to realize lower cost production of liquid fuels from biomass.

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Section: Acs Catalysismentioning

confidence: 98%

Support Induced Control of Surface Composition in Cu–Ni/TiO₂ Catalysts Enables High Yield Co-Conversion of HMF and Furfural to Methylated Furans

et al. 2017

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“…[51] This result further illustrates the formation of the NC component in the Pt/NC-CeO 2 sample. Accordingly,a s-formed electron-richs urface Ns ites in the NC component, particularly pyridine-type nitrogen species, [12] may generate new SLB sites that can promote the selective oxidation of HMF.M oreover,i ti sb elieved that pyrroletype nitrogen species are beneficial to the dispersiono fa ctive metals, [52] and thus govern the catalytic performance of the Pt/ NC-CeO 2 catalyst to some extent.…”

Section: Surface Structuralp Roperties Of Supported Pt Samplesmentioning

confidence: 99%

Pt Nanoparticles Supported on Nitrogen‐Doped‐Carbon‐Decorated CeO₂ for Base‐Free Aerobic Oxidation of 5‐Hydroxymethylfurfural

Fan

et al. 2018

Chemistry An Asian Journal

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Currently, the base-free aerobic oxidation of biomass-derived 5-hydroxymethylfurfural (HMF) to produce 2,5-furandicarboxylic acid (FDCA) is attracting intense interest due to its prospects for the green, sustainable, and promising production of biomass-based aromatic polymers. Herein, we have developed a new Pt catalyst supported on nitrogen-doped-carbon-decorated CeO (NC-CeO ) for the aerobic oxidation of HMF in water without the addition of any homogeneous base. It was demonstrated that the small-sized Pt particles could be well dispersed on the surface of the hybrid NC-CeO support, and the activity of the supported Pt catalyst depended strongly on the surface structure and properties of the catalysts. The as-fabricated Pt/NC-CeO catalyst, with abundant surface defects, enhanced basicity, and favorable electron-deficient metallic Pt species, enabled an almost 100 % yield of FDCA in water with molecular oxygen (0.4 MPa) at 110 °C for 8 h without the addition of any homogeneous base, which is indicative of exceptional catalytic performance. Furthermore, this Pt/NC-CeO catalyst also showed good stability and reusability owing to strong metal-support interactions. An understanding of the role of surface structural defects and basicity of the hybrid NC-CeO support provides a basis for the rational design of high-performance and stable supported metal catalysts with practical applications in various transformations of biomass-derived compounds.

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“…In ref. 93 the authors developed a CuCo bimetallic NP catalyst supported on N-graphene-modied Al 2 O 3 (CuCo®/NGr/ a-Al 2 O 3 ) through the impregnation of alumina with an ethanol solution of Co and Cu acetates with 1,10-phenanthroline (carbon source), followed by calcination and reduction. This results in the dispersion of CuCo NPs in the alumina infused with N-doped graphene (Fig.…”

Section: A Bottom-up Fully In Situ Approach To Synthesize Both Nps Amentioning

confidence: 99%

Graphene and graphene-like materials in biomass conversion: paving the way to the future

2017

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Efficient hydrogenolysis of 5-hydroxymethylfurfural to 2,5-dimethylfuran over a cobalt and copper bimetallic catalyst on N-graphene-modified Al₂O₃

Cited by 95 publications

References 19 publications

Support Induced Control of Surface Composition in Cu–Ni/TiO₂ Catalysts Enables High Yield Co-Conversion of HMF and Furfural to Methylated Furans

Support Induced Control of Surface Composition in Cu–Ni/TiO₂ Catalysts Enables High Yield Co-Conversion of HMF and Furfural to Methylated Furans

Pt Nanoparticles Supported on Nitrogen‐Doped‐Carbon‐Decorated CeO₂ for Base‐Free Aerobic Oxidation of 5‐Hydroxymethylfurfural

Graphene and graphene-like materials in biomass conversion: paving the way to the future

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Efficient hydrogenolysis of 5-hydroxymethylfurfural to 2,5-dimethylfuran over a cobalt and copper bimetallic catalyst on N-graphene-modified Al2O3

Cited by 95 publications

References 19 publications

Support Induced Control of Surface Composition in Cu–Ni/TiO2 Catalysts Enables High Yield Co-Conversion of HMF and Furfural to Methylated Furans

Support Induced Control of Surface Composition in Cu–Ni/TiO2 Catalysts Enables High Yield Co-Conversion of HMF and Furfural to Methylated Furans

Pt Nanoparticles Supported on Nitrogen‐Doped‐Carbon‐Decorated CeO2 for Base‐Free Aerobic Oxidation of 5‐Hydroxymethylfurfural

Graphene and graphene-like materials in biomass conversion: paving the way to the future

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Efficient hydrogenolysis of 5-hydroxymethylfurfural to 2,5-dimethylfuran over a cobalt and copper bimetallic catalyst on N-graphene-modified Al₂O₃

Support Induced Control of Surface Composition in Cu–Ni/TiO₂ Catalysts Enables High Yield Co-Conversion of HMF and Furfural to Methylated Furans

Support Induced Control of Surface Composition in Cu–Ni/TiO₂ Catalysts Enables High Yield Co-Conversion of HMF and Furfural to Methylated Furans

Pt Nanoparticles Supported on Nitrogen‐Doped‐Carbon‐Decorated CeO₂ for Base‐Free Aerobic Oxidation of 5‐Hydroxymethylfurfural