Influence of Reactor Configuration on the Selective Oxidation of Glycerol over Au/TiO2

Zope, Bhushan N.; Davis, Robert J.

doi:10.1007/s11244-008-9163-3

Cited by 45 publications

(73 citation statements)

References 16 publications

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“…By performing the heterogeneously catalyzed aerobic oxidation of glycerol in flow, [272][273][274] high product selectivity could be achieved over a Au/TiO 2 catalyst packed in a milli-reactor (d C = 4 mm) using water as solvent in the presence of base (0.1-0.6 M NaOH) ( Table 5, entry 8). By performing the heterogeneously catalyzed aerobic oxidation of glycerol in flow, [272][273][274] high product selectivity could be achieved over a Au/TiO 2 catalyst packed in a milli-reactor (d C = 4 mm) using water as solvent in the presence of base (0.1-0.6 M NaOH) ( Table 5, entry 8).…”

Section: Oxidation Of Glycerol To C 3 Aldehydes and C 2 /C 3 Acidsmentioning

confidence: 99%

Catalytic Transformation of Biomass Derivatives to Value‐Added Chemicals and Fuels in Continuous Flow Microreactors

2019

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Biomass as a renewable and abundantly available carbon source is a promising alternative to fossil resources for the production of chemicals and fuels. The development of biobased chemistry, along with catalyst design, has received much research attention over recent years. However, dedicated reactor concepts for the conversion of biomass and its derivatives are a relatively new research field. Continuous flow microreactors are a promising tool for process intensification, especially for reactions in multiphase systems. In this work, the potential of microreactors for the catalytic conversion of biomass derivatives to value-added chemicals and fuels is critically reviewed. Emphases are laid on the biphasic synthesis of furans from sugars, oxidation and hydrogenation of biomass derivatives. Microreactor processing has been shown capable of improving the efficiency of many biobased reactions, due to the transport intensification and a fine control over the process. Microreactors are expected to contribute in accelerating the technological development of biomass conversion and have a promising potential for industrial application in this area.

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Section: Oxidation Of Glycerol To C 3 Aldehydes and C 2 /C 3 Acidsmentioning

confidence: 99%

Catalytic Transformation of Biomass Derivatives to Value‐Added Chemicals and Fuels in Continuous Flow Microreactors

2019

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“…92,93 Davis and co-workers demonstrated that Au was more active than Pd and Pt with the use of high base concentration, whereas the activity of bimetallic Pd/Au systems was significantly lower than that of monometallic Au but led to greater formation of glyceric acid. 94 It was also demonstrated that hydrogen peroxide was formed during glycerol oxidation and its formation was associated with an increased presence of base in solution; 95 the H 2 O 2 formed can cause carbon-carbon bond cleavage and increase the formation of by-products during oxidation reactions.…”

Section: Selective Oxidation Of Alcohols Derived From Biomassmentioning

confidence: 99%

Homogeneous, Heterogeneous and Nanocatalysis

Albonetti

Mazzoni

Cavani

2014

Transition Metal Catalysis in Aerobic Alcohol Oxidation

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The past decade has seen ever-increasing interest in the catalytic aerobic oxidation of alcohols, which is one of the pivotal functional group transformations in organic chemistry. Nevertheless, most of the current methods for alcohol oxidation are not catalytic, hence the use of catalysts and green oxidants such as O2 or air, instead of stoichiometric quantities of inorganic oxidants, will provide a highly desirable approach to this reaction. This chapter summarizes the latest breakthroughs in the use of homogeneous and heterogeneous catalysts in aerobic alcohol oxidation in the liquid phase; the use of microwaves and photochemistry to assist and promote catalytic activities is also highlighted. Moreover, since nanoparticle systems may be considered an interesting compromise between heterogeneous and homogeneous catalytic systems, the recent development of soluble transition metal colloids as active nanocatalysts for aerobic alcohol oxidation is also presented.

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“…When the support was neutral or alkaline, the supported Rh catalyst was more active (222). In addition, it was recently found that Au-Pd alloys/TiO 2 catalysts appeared peculiarly active (225,226). For these phenomena, the reasons were often attributed to the geometric and electronic state on the support surface and the metal-support interactions (227).…”

Section: Glycerol To Glyceric Acidmentioning

confidence: 99%

Recent Advances in Catalytic Conversion of Glycerol

Zhou¹,

Zhao²,

Tong³

et al. 2013

Catalysis Reviews

177

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The article underlines and discusses the state-of-the-art accomplishments in the catalytic conversion of glycerol (1,2,3-propanetriol) to fuels and value-added chemicals in the past five years (2008)(2009)(2010)(2011)(2012). The reactions include steam reforming, aqueous-phase reforming, hydrogenolysis, oxidation, dehydration, esterification, etherification, carboxylation, acetalization, and chlorination. Typical products are hydrogen, propanediols, dihydroxyacetone, glyceric acid, acrolein, glyceride, polyglycerol, glycerol carbonate, acetals, ketals, and epichlorohydrine. Recent studies on the catalysts, reaction conditions, and possible pathways are primarily discussed. They indicate that major breakthroughs are achieved by the use of multifunctional catalysts, process intensification and integrated reactions. Literature survey suggests that future work on the catalytic conversion of glycerol for commercial goals particularly requires new catalysts, innovative reactor engineering, and close multidisciplinary partnership.

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Influence of Reactor Configuration on the Selective Oxidation of Glycerol over Au/TiO2

Cited by 45 publications

References 16 publications

Catalytic Transformation of Biomass Derivatives to Value‐Added Chemicals and Fuels in Continuous Flow Microreactors

Catalytic Transformation of Biomass Derivatives to Value‐Added Chemicals and Fuels in Continuous Flow Microreactors

Homogeneous, Heterogeneous and Nanocatalysis

Recent Advances in Catalytic Conversion of Glycerol

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