4.6 Article

Graphenes as Metal-free Catalysts for the Oxidative Depolymerization of Lignin Models

Journal

CHEMCATCHEM
Volume 7, Issue 18, Pages 3020-3026

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/cctc.201500477

Keywords

carbocatalysis; graphene as catalyst; heterogeneous catalysis; lignin depolymerization

Funding

  1. Spanish Ministry of Economy and Competitiveness [CTQ2012-32315]
  2. Generalitat Valenciana [Prometeo 2012-013]
  3. European Union (Novacam project)
  4. Technical University of Valencia

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Graphene oxide promotes the oxidative degradation of -guaiacylglycerol--guaiacyl ether, a lignin model compound, in different solvents including acetonitrile, toluene and water mainly to guaiacol, 2-methoxyquinone, vanillic acid and coniferyl aldehyde. Reduced graphene oxide and B-doped graphene exhibit similar activity as graphene oxide. Control experiments indicate that metal impurities should play a marginal role in the observed catalytic activity.

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