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Solid Molecular Phosphine Catalysts for Formic Acid Decomposition in the Biorefinery
Author(s) -
Hausoul Peter J. C.,
Broicher Cornelia,
Vegliante Roberta,
Göb Christian,
Palkovits Regina
Publication year - 2016
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201510681
Subject(s) - levulinic acid , formic acid , catalysis , chemistry , phosphine , decomposition , leaching (pedology) , selectivity , organic chemistry , cellulose , furfural , biorefinery , hydrogen production , raw material , environmental science , soil science , soil water
The co‐production of formic acid during the conversion of cellulose to levulinic acid offers the possibility for on‐site hydrogen production and reductive transformations. Phosphorus‐based porous polymers loaded with Ru complexes exhibit high activity and selectivity in the base‐free decomposition of formic acid to CO 2 and H 2 . A polymeric analogue of 1,2‐bis(diphenylphosphino)ethane (DPPE) gave the best results in terms of performance and stability. Recycling tests revealed low levels of leaching and only a gradual decrease in the activity over seven runs. An applicability study revealed that these catalysts even facilitate selective removal of formic acid from crude product mixtures arising from the synthesis of levulinic acid.