Synthesis and characterization of Au supported on carbonaceous material-based catalysts for the selective oxidation of glycerol

Gil, Sonia; Muñoz, Lorena; Sánchez-Silva, L.; Romero, Amaya; Valverde, J.L.

doi:10.1016/j.cej.2011.05.108

Cited by 59 publications

(46 citation statements)

References 71 publications

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“…Several authors have found that larger metal particles are more selective in glycerol liquid phase oxidation. However, Gil et al [22] reported for gold-sol supported catalyst that both conversion and selectivity increased with decreasing gold particle sizes, what is in good agreement in our experimental results. ) determined after 0.5 h of reaction, c -reaction time to achieve 50 % glycerol conversion, d -conversion of glycerol after 3 h of reaction, e -selectivity to glyceric acid (GLYA), tartronic acid (TARA), glycolic acid (GLYCA), formic acid (FORMA) and oxalic acid (OXA), respectively at 50 % of glycerol conversion, f -yield of Σ(glyceric acid and tartronic acid) after 3 h of reaction.…”

Section: Catalytic Performancesupporting

confidence: 82%

“…The metals used in these studies included Pd, Pt, Au, Pt-Bi, Au-Pd, Au-Pt supported usually on carbonaceous materials (active carbon, charcoal, graphite, carbon nanotubes) [12][13][14][15][16][17][18][19][20][21][22][23] [24][25][26][27], MgAl 2 O 4 -spinels [28] or hydrotalcite [29] have also been employed. A second metal or promoter is added sometimes in order to improve the activity and/or selectivity, to inhibit the over-oxidation or to prevent the deactivation.…”

Section: Introductionmentioning

confidence: 99%

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Gel-type ion exchange resin stabilized Pd-Bi nanoparticles for the glycerol oxidation in liquid phase

Vajíček

Štolcová

Kaszonyi

et al. 2016

Journal of Industrial and Engineering Chemistry

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Section: Catalytic Performancesupporting

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Gel-type ion exchange resin stabilized Pd-Bi nanoparticles for the glycerol oxidation in liquid phase

Vajíček

Štolcová

Kaszonyi

et al. 2016

Journal of Industrial and Engineering Chemistry

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“…The TPR profiles revealed that the interaction between the metal phase and the support varied depending on the metal particle size. Thus, stronger interactions were obtained for those catalysts having smaller Cu particles since T max decreased with the Cu particle size (Table 1) [20,23,24]. Thus, the reducibility of the catalysts followed the sequence: 50% Cu-AC > 20% Cu-AC > 10% Cu-AC.…”

Section: Characterization Of the Cu Powder Catalysts And The Cu Electmentioning

confidence: 94%

Low-Temperature Electrocatalytic Conversion of CO2 to Liquid Fuels: Effect of the Cu Particle Size

et al. 2018

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A novel gas-phase electrocatalytic system based on a low-temperature proton exchange membrane (Sterion) was developed for the gas-phase electrocatalytic conversion of CO 2 to liquid fuels. This system achieved gas-phase electrocatalytic reduction of CO 2 at low temperatures (below 90 • C) over a Cu cathode by using water electrolysis-derived protons generated in-situ on an IrO 2 anode. Three Cu-based cathodes with varying metal particle sizes were prepared by supporting this metal on an activated carbon at three loadings (50, 20, and 10 wt %; 50% Cu-AC, 20% Cu-AC, and 10% Cu-AC, respectively). The cathodes were characterized by N 2 adsorption-desorption, temperature-programmed reduction (TPR), and X-ray diffraction (XRD) and their performance towards the electrocatalytic conversion of CO 2 was subsequently studied. The membrane electrode assembly (MEA) containing the cathode with the largest Cu particle size (50% Cu-AC, 40 nm) showed the highest CO 2 electrocatalytic activity per mole of Cu, with methyl formate being the main product. This higher electrocatalytic activity was attributed to the lower Cu-CO bonding strength over large Cu particles. Different product distributions were obtained over 20% Cu-AC and 10% Cu-AC, with acetaldehyde and methanol being the main reaction products, respectively. The CO 2 consumption rate increased with the applied current and reaction temperature.

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“…The study determined supports with few structural defects such as graphite and ribbon carbon nanofibers stabilize Au significantly better than fishbone and platelet nanofibers that offer a prismatic surface to the nanoparticles (i.e. edges) [157,158]. Catalysts with graphitic supports were more selective towards glyceric acid and gave higher turnover frequencies.…”

Section: Selective Oxidationmentioning

confidence: 98%

Functional carbons and carbon nanohybrids for the catalytic conversion of biomass to renewable chemicals in the condensed phase

Matthiesen

Hoff

Liu

et al. 2014

Chinese Journal of Catalysis

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The production of chemicals from lignocellulosic biomass provides opportunities to synthesize chemicals with new functionalities and grow a more sustainable chemical industry. However, new challenges emerge as research transitions from petrochemistry to biorenewable chemistry. Compared to petrochemisty, the selective conversion of biomass-derived carbohydrates requires most catalytic reactions to take place at low temperatures (< 300 °C) and in the condensed phase to prevent reactants and products from degrading. The stability of heterogeneous catalysts in liquid water above the normal boiling point represents one of the major challenges to overcome. Herein, we review some of the latest advances in the field with an emphasis on the role of carbon materials and carbon nanohybrids in addressing this challenge. ABSTRACTThe production of chemicals from lignocellulosic biomass provides opportunities to synthesize chemicals with new functionalities and grow a more sustainable chemical industry. However, new challenges emerge as research transitions from petrochemistry to biorenewable chemistry. Compared to petrochemisty, the selective conversion of biomass-derived carbohydrates requires most catalytic reactions to take place at low temperatures (< 300 °C) and in the condensed phase to prevent reactants and products from degrading. The stability of heterogeneous catalysts in liquid water above the normal boiling point represents one of the major challenges to overcome. Herein, we review some of the latest advances in the field with an emphasis on the role of carbon materials and carbon nanohybrids in addressing this challenge.

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Synthesis and characterization of Au supported on carbonaceous material-based catalysts for the selective oxidation of glycerol

Cited by 59 publications

References 71 publications

Gel-type ion exchange resin stabilized Pd-Bi nanoparticles for the glycerol oxidation in liquid phase

Gel-type ion exchange resin stabilized Pd-Bi nanoparticles for the glycerol oxidation in liquid phase

Low-Temperature Electrocatalytic Conversion of CO2 to Liquid Fuels: Effect of the Cu Particle Size

Functional carbons and carbon nanohybrids for the catalytic conversion of biomass to renewable chemicals in the condensed phase

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