Liquid phase hydrogenation of d-glucose to d-sorbitol over the catalyst (Ru/NiO–TiO2) of ruthenium on a NiO-modified TiO2 support

Mishra, Dinesh Kumar; Lee, Jongmin; Chang, Jong‐San; Hwang, Jung Yeon

doi:10.1016/j.cattod.2011.11.020

Cited by 55 publications

(33 citation statements)

References 27 publications

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“…However, despite this anomaly with the Ni90 data the decrease in activity did not appear to correlate with TiO 2 fraction. Indeed, the decrease was constant 25 for all catalysts, unlike for the conversion of glycerol. Together the catalytic activity results for these two reactions show a reduction in activity, with the dilution of NiO, which does not decrease linearly (Figure 1).…”

Section: Resultsmentioning

confidence: 89%

“…Diffuse reflectance infrared Fourier transform (DRIFT) data were collected with a Vertex 70 spectrometer (Bruker Optics, Switzerland) equipped with a liquid-nitrogen cooled MCT detector and a Praying Mantis (Harrick, HDRV) cell 25 and mirror unit. CO adsorption was performed by admitting 1 vol% CO/Ar (50 ml/min) at room temperature on the dried samples (120°C, 30 min, Ar flow).…”

Section: Catalysts Characterizationmentioning

confidence: 99%

“…[3][4][5] Recent studies have shown that the support play an important role in enhancing the activity and the selectivity of the gold catalysed reactions. [6][7][8][9][10][11] Indeed, the 25 support properties can tune the interaction with the metallic particles dispersed on or in it, thus modifying both the catalysts electronic and structural properties. In addition, the support can also provide different anchoring sites for the reactants, acting as an active and sometimes reactive surface.…”

Section: Introductionmentioning

confidence: 99%

“…23,24 More recently NiO modified TiO 2 system have also been used as catalytic supports for Ru in the hydrogenation of xylose and glucose. 25 80 the colloids (acidified at pH 2, by sulphuric acid) were immobilized by adding the support to the vigorously stirring solution. The amount of support was controlled in order to obtain a final metal loading of 1wt% (on the basis of quantitative loading of the metal on the support).…”

Section: Introductionmentioning

confidence: 99%

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NiO as a peculiar support for metal nanoparticles in polyols oxidation

Villa

Veith

Ferri

et al. 2013

Catal. Sci. Technol.

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The peculiar influence of a NiO support was studied by preparing gold catalysts supported on NiO 1Àx -TiO 2 x mixed oxides. PVA protected Au nanoparticles showed high activity when supported on NiO for the selective oxidation of glycerol and ethane-1,2-diol. A detailed characterization of the resulting Au catalysts revealed a preferential deposition of the metal nanoparticles on the NiO phase. However, the activity of Au on NiO 1Àx -TiO 2 x decreased with respect to pure NiO and the selectivity evolved with changes in the support.

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Section: Resultsmentioning

confidence: 89%

Section: Catalysts Characterizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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NiO as a peculiar support for metal nanoparticles in polyols oxidation

Villa

Veith

Ferri

et al. 2013

Catal. Sci. Technol.

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“…1279 based catalysts have shown good stability in this reaction (Romero et al 2016). The activity of Ru-based catalysts partially depends on supports such as activated carbon (Lazaridis et al 2015), MCM-41 (Zhang et al 2011), ZSM-5 (Guo et al 2014), silica (Wang et al 2015, and NiO-modified TiO2 (Mishra et al 2012). Therefore, it is very important to study the preparation and application of carbonized cassava dregs-supported ruthenium nanoparticles catalysts.…”

Section: Introductionmentioning

confidence: 99%

Efficient Conversion of D-Glucose into D-Sorbitol over Carbonized Cassava Dregs-Supported Ruthenium Nanoparticles Catalyst

Li¹,

Liu²,

Shu-bin³

2018

BioResources

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A carbonized cassava dregs-supported ruthenium nanoparticles catalyst (Ru/CCD) was prepared by a simple impregnation-chemical reduction method. The synthesized Ru/CCD catalysts were characterized by X-ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The catalytic performances of the Ru/CCD catalysts were evaluated in the conversion of D-glucose into D-sorbitol under hydrogen atmosphere. Moreover, the effects of various parameters on glucose hydrogenation and the recyclability of the catalysts were investigated in detail. The optimized D-sorbitol yield reached up to 98.6% at 120 °C for 1.5 h with D-glucose conversion of 99.7%. The Ru nanoparticles played an important role in the hydrogenation of D-glucose into D-sorbitol, and the Ru particle was widely dispersed all over the support surface. In addition, the Ru/CCD catalyst was stable during the reaction and was reused for up to five successive runs with a slight decrease in D-sorbitol yield. Technology, Guangzhou, Guangdong, 510640, China; * Corresponding authors: amyliu@scut.edu.cn, shubinwu@scut.edu.cn Keywords: Cassava dregs; Ruthenium; D-Glucose; D-Sorbitol Contact information: State Key Laboratory of Pulp and Paper Engineering, South China University of INTRODUCTIONWith the gradual depletion of fossil feedstock and the deteriorating pollution situation, new renewable alternatives to fossil feedstock are being explored (Zhang et al. 2012;Xi et al. 2013;Dabbawala et al. 2016). Biomass, a sustainable resource for the energy and carbon cycles in nature, has aroused worldwide attention (Kobayashi et al. 2011;Han and Lee 2012;Liao et al. 2014;Zhu et al. 2014). Cassava dregs, a waste byproduct with a large lignocellulosic component, are generated during the cassava-based bioethanol production (He et al. 2014;Kristensen et al. 2014;Nguyen et al. 2014). DSorbitol is an important chemical intermediate and a new energy chemical that has significant applications in food, medicine, textiles, and cosmetics, as well as in the chemical industry (Deng et al. 2010;Zheng et al. 2010;Liu et al. 2011;Chen et al. 2013;Negoi et al. 2014;Ribeiro et al. 2017).Recently, D-sorbitol has been produced by catalytic hydrogenation of D-glucose in industrial production. A Raney-type Ni catalyst has been developed for the production of D-sorbitol. However, the Ni in the Raney-type Ni catalyst easily leaches into the solution . In addition, the easy deactivation of the catalyst is an important issue with Raney-type Ni catalysts (Dabbawala et al. 2016). To overcome the drawbacks of the Raney-type Ni catalysts, several catalysts have been applied in the hydrogenation of Dglucose, especially Ru-based catalysts (Mishra et al. 2014;Lazaridis et al. 2015). The Rubased catalysts have higher activity than Raney-type Ni catalysts. Furthermore, the Ru-PEER-REVIEWED ARTICLE bioresources.com Li et al. (2018). "Cassava dregs support for catalyst," BioResources 13(1), 1278-1288. 1279 based catalysts...

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