Catalytic methylation of phenol with mixed solvents over Ni/CeO2-La2O3. (1st May 2023) - Zhao, Ji
Graphic abstract: Highlights: Ni/CeO2 -La2 O3 exhibits a strong acidity according to TPD of NH3 . The strong acidity of Ni/CeO2 -La2 O3 facilitates the catalytic methylation of phenol. Phenol was completely converted with methanol to 2, 6-xylenol over Ni/CeO2 -La2 O3 . Abstract: Ni/CeO2 -La2 O3 with strong acidity was prepared by in - situ carbon templating (ISCT) and subsequent reduction with H2 . The phase composition, specific surface area, morphology, acidity, and elemental valence composition of the catalyst were characterized. The catalytic methylation (CM I ) of phenol over the catalyst in different ratios of methanol to n -hexane was investigated under N2 atmosphere. Over the catalyst, phenol was completely converted into 2, 6-xylenol at 260 °C for 3 h via the CM I of phenol to o -cresol and subsequent CM I of o -cresol.