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Practical DMSO-promoted selective hydrolysis–oxidation of lignocellulosic biomass to formic acid attributed to hydrogen bonds.
- Source :
- Green Chemistry; 9/21/2021, Vol. 23 Issue 18, p7041-7052, 12p
- Publication Year :
- 2021
-
Abstract
- Formic acid (HCO<subscript>2</subscript>H) is widely used in various chemical processes, applied in fuel cells, and considered as a promising candidate for hydrogen storage. Currently, industrial production of HCO<subscript>2</subscript>H mainly depends on fossil resources using multiple processes. Practical HCO<subscript>2</subscript>H production from renewable resources for the potential industrial application is rare. Herein, we demonstrate practical dimethyl sulfoxide (DMSO) (1 v%)-promoted selective hydrolysis–oxidation of lignocellulosic biomass to HCO<subscript>2</subscript>H, which is demonstrated by recycling experiments of near 10 gram-scale wheat straw with constantly high efficiencies. Mechanism studies on the major unit of lignocellulosic biomass, glucose, disclose that the high selectivity and yield of HCO<subscript>2</subscript>H are attributed to the hydrogen bonds of DMSO with generated gem-diol groups from the reaction of glucose, or the intermediates of glycolaldehyde and glyoxal with water (H<subscript>2</subscript>O). The formation of hydrogen bonds is indicated both by DFT calculations and IR experiments. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14639262
- Volume :
- 23
- Issue :
- 18
- Database :
- Complementary Index
- Journal :
- Green Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 152537221
- Full Text :
- https://doi.org/10.1039/d1gc02265b