Effect of Doping Cerium in the Support of Catalyst Pd-Co/Cu-Co-Mn Mixed Oxides on the Oxidative Carbonylation of Phenol

• Published in: Chinese journal of chemical engineering Vol. 17; no. 3; pp. 401 - 406
• Main Author: 梁英华 郭红霞 陈红萍 吕敬德 张波波
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.06.2009
• Subjects: diphenyl carbonate; doping cerium; oxidative carbonylation; sol-gel method; 复合氧化物催化剂; 气相色谱/质谱; 氧化羰化; 碳酸二苯酯; diphenyl carbonate; doping cerium; oxidative carbonylation; sol-gel method
• ISSN: 1004-9541; 2210-321X
• DOI: 10.1016/S1004-9541(08)60223-2

Effect of doping cerium in the support on the catalytic activity and side product of the reaction in the oxidative carbonylation of phenol to diphenyl carbonate （DPC） over the catalyst Pd-Co/Cu-Co-Mn mixed oxides was studied. The specific surface areas, crystal phase, valency, and content of the element on the surface of the catalysts were determined, and the products were detected by gas chromatograph/mass spectrometry （GC-MS）. It is found that the catalyst without Ce shows higher activity than that with Ce, and the yields of DPC for the two cata-lysts can reach 30% and 23%, respectively. However, doping cerium can prevent the formation of 2-hydroxyphenyl benzoate and p-bromophenyl phenyl carbonate.