期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 27, 期 14, 页码 4715-4722出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.202005450
关键词
ethylene glycol; glycolic acid; homogeneous catalysis; hydrogen; sustainable chemistry
资金
- Sustainability and Energy Research Initiative (SAERI) of Weizmann Institute of Science
- Foreign Postdoctoral Fellowship Program of the Israel Academy of Sciences and Humanities
- Zuckerman STEM Leadership Program
- GENCI-CINES [2019AP010811227]
Ethylene glycol can be transformed into glycolic acid and pure hydrogen gas under homogeneous ruthenium catalysis, providing a clean and sustainable direction for production. This transformation, achieved with 0.5 mol% of catalyst, uses ethylene glycol as a renewable raw material.
Glycolic acid is a useful and important alpha-hydroxy acid that has broad applications. Herein, the homogeneous ruthenium catalyzed reforming of aqueous ethylene glycol to generate glycolic acid as well as pure hydrogen gas, without concomitant CO2 emission, is reported. This approach provides a clean and sustainable direction to glycolic acid and hydrogen, based on inexpensive, readily available, and renewable ethylene glycol using 0.5 mol % of catalyst. In-depth mechanistic experimental and computational studies highlight key aspects of the PNNH-ligand framework involved in this transformation.
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