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Ionic Liquids for Conversion of Biomass to Sugars or HMF Without Additional Catalysts

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The results, they say, are broadly relevant to reactions involving the use of IL-H 2 O mixtures (as solvents, reactants, or catalysts), including, but not limited to, organic catalysis, electrochemistry, and biomass processing or conversion. A paper describing the work was published 10 March in the ACS journal Energy & Fuels.

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New Efficient Iron Catalyst for Water Oxidation

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Researchers at Carnegie Mellon University have developed a new catalyst—iron-centered tetraamido macrocyclic ligand (Fe-TAML)—that efficiently catalyzes water oxidation. Water oxidation is the second of two requisite half-reactions in the photolysis of water, the other being the reduction of protons to dihydrogen. At pH 0.7,

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Solar reactor for the two-step thermochemical production of fuels from water and carbon dioxide

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The material then readily strips oxygen atoms from carbon dioxide and water, forming CO and hydrogen, respectively, which are combined to create fuels. Haile, and Aldo Steinfeld (2010)High-Flux Solar-Driven Thermochemical Dissociation of CO 2 and H 2 O Using Nonstoichiometric Ceria. additional quench or separation steps). Science Vol.

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MIT Researchers Identify New Low-Cost Water-Splitting Catalyst

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Daniel Nocera and his associates have found another formulation, based on inexpensive and widely available materials, that can efficiently catalyze the splitting of water molecules using electricity. Nocera (2010) Nickel-borate oxygen-evolving catalyst that functions under benign conditions. Earlier post.). Earlier post.) Mircea Dinc?,

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Energy-Efficient One-Pot Process for Conversion of Biomass to HMF

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Hydrated niobium pentoxide (Nb 2 O 5 · nH 2 O 1 ) after pretreatment showed high catalytic activities for dehydration of mono- and polysaccharide to HMF at 433K in water-2-butanol (2:3 v/v) biphasic system, giving high HMF yield of 89% and 54% from fructose and inulin respectively. —Yang et al. 2010.10.023.

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Direct conversion of carbohydrates into HMF with germanium(IV) chloride in ionic liquids

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Researchers in China report on the direct conversion of carbohydrates into 5-hydroxymethylfurfural (HMF) catalyzed by germanium(IV) chloride in ionic liquids in a new paper in the journal ChemSusChem. The structure of ionic liquids, catalyst loading, reaction temperature and water content had noticeable effects on this catalytic system.

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MIT Researchers Engineer Viruses as Scaffolds for Photocatalytic Water Oxidation

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Angela Belcher, has engineered a common bacteriophage virus (M13) to function as a scaffold to mediate the co-assembly of zinc porphyrins (photosensitizer) and iridium oxide hydrosol clusters (catalyst) for visible light-driven water oxidation. Angela Belcher.

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