4.5 Article

Photocatalytic Coupling of Methanol and Formaldehyde into Ethylene Glycol with High Atomic Efficiency

Journal

CATALYSIS LETTERS
Volume 148, Issue 8, Pages 2274-2282

Publisher

SPRINGER
DOI: 10.1007/s10562-018-2465-6

Keywords

Photocatalysis; C-C coupling; Ethylene glycol; Atomic efficiency

Funding

  1. National Key R&D Program of China [2017YFB0602202]
  2. Natural Science Foundation of China [21573271, 91545112]
  3. Chinese Academy of Sciences [QYZDB-SSW-SLH035]

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A mild strategy to form ethylene glycol via photocatalytic C-C coupling of methanol and formaldehyde was developed with high atomic efficiency over M/TiO2 under UV-light irradiation. The presence of both methanol and formaldehyde significantly enhanced the formation of ethylene glycol with selectivity of 80%. A radical reaction mechanism for the photocatalytic C-C coupling of methanol and formaldehyde into ethylene glycol was proposed based on electron spin resonance and isotope labeling experiment as well as quantum chemical calculations. [GRAPHICS] .

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