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The effect of manganese(II) chloride as a co-catalyst on cellobiose hydrolysis in dilute aqueous sulfuric acid and acidic ionic liquid mediums

Paper ID Volume ID Publish Year Pages File Format Full-Text
49772 46765 2016 4 PDF Available
Title
The effect of manganese(II) chloride as a co-catalyst on cellobiose hydrolysis in dilute aqueous sulfuric acid and acidic ionic liquid mediums
Abstract

•Effect of MnCl2 on cellobiose hydrolysis in aq. H2SO4 and BAIL mediums was studied.•MnCl2 co-catalyst produced enhancements in glucose yields in both acid mediums.•The yield enhancements gradually decrease with hydrolysis temperature.•Co-catalytic effect may be due to weak interactions of Mn2 + and Cl− with cellobiose.

The effects of adding MnCl2 as a co-catalyst on cellobiose hydrolysis in 0.016 M aqueous H2SO4 and 0.032 M 1-(1-propylsulfonic)-3-methylimidazolium chloride acidic ionic liquid mediums were studied at 60–90 °C by measuring the glucose yields. The addition of MnCl2 produced enhancements in glucose yields in both aqueous acid mediums. The yield enhancements are highest at 60 °C and gradually decrease at higher temperatures, suggesting that a weak interaction of MnCl2 with cellobiose causes the co-catalytic effect. FT-IR studies in the solid-state suggest that MnCl2 interacts with hydroxyl groups of cellobiose without causing significant changes in the pyranose ring conformations.

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Keywords
Cellobiose; Sulfuric acid; Acidic ionic liquid; Hydrolysis; Co-catalyst
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The effect of manganese(II) chloride as a co-catalyst on cellobiose hydrolysis in dilute aqueous sulfuric acid and acidic ionic liquid mediums
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 81, 5 June 2016, Pages 41–44
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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