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Title: Strategy for Extending the Stability of Bio‐oil‐Derived Phenolic Oligomers by Mild Hydrotreatment with Ionic‐Liquid‐Stabilized Nanoparticles

Journal Article · · ChemSusChem
 [1];  [2];  [2];  [3];  [4];  [5];  [1]
  1. Deconstruction Division Joint BioEnergy Institute Emeryville CA USA, Biological and Engineering Sciences Center Sandia National Laboratories Livermore CA USA
  2. Bioeconomy Institute Iowa State University Ames IA USA
  3. Molecular Biophysics and Integrated Bioimaging Division Lawrence Berkeley National Laboratory Berkeley CA USA
  4. Deconstruction Division Joint BioEnergy Institute Emeryville CA USA, Molecular Biophysics and Integrated Bioimaging Division Lawrence Berkeley National Laboratory Berkeley CA USA
  5. Deconstruction Division Joint BioEnergy Institute Emeryville CA USA, Biological Systems and Engineering Division Lawrence Berkeley National Laboratory Berkeley CA USA

Abstract The development of catalytic transformations and processes is essential to utilize bio‐oil and lignin derivatives. Metal nanoparticles (M‐NPs) stabilized in ionic liquids (ILs) are promising for the catalytic hydrotreatment of bio‐oil because the properties of the catalyst system can be customized by combining the appropriate IL and metal nanoparticles. Herein, we demonstrate an experimental approach to stabilize lignin‐derived phenolics isolated from bio‐oil with ruthenium NPs stabilized by an ionic copolymer in 1‐ethyl‐3‐methylimidazolium acetate ([C 2 C 1 Im][OAc]). The mild hydrotreatment of phenolic oligomers (POs) was performed with the synthesized M‐NP catalyst at 100 °C for 6 h. Hydrotreatment of the POs resulted in enhanced thermal stability of the POs by as much as a factor of three, as determined by the aging index and by reducing reactive functionalities, which was also confirmed by NMR spectroscopy and GC analysis. The results support our hypothesis that M‐NPs stabilized in ILs can effectively stabilize POs under mild conditions, which could be applicable to any lignin‐derived phenolic.

Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1401035
Journal Information:
ChemSusChem, Journal Name: ChemSusChem Journal Issue: 5 Vol. 10; ISSN 1864-5631
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
Germany
Language:
English

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