A novel catalyst of copper hydroxyphosphate with high activity in wet oxidation of aromatics

作者：Xiao, FS^*; Sun, JM; Meng, XJ; Yu, RB; Yuan, HM; Jiang, DZ; Qiu, SL; Xu, RR

来源：Applied Catalysis A: General , 2001, 207(1-2): 267-271.

DOI：10.1016/S0926-860X(00)00679-7

• wet oxidation of aromatics
• copper hydroxyphosphate catalyst
• ESR spectroscopy

A novel catalyst of copper hydroxyphosphate (Cu(2)(OH)PO(4)) that has neither microporous nor mesoporous pores was successfully synthesized by a hydrothermal method. Catalytic data in the hydroxylation of phenol, benzene and naphthol by hydrogen peroxide showed that copper hydroxyphosphate is a very active catalyst. Comparison of various catalysts on phenol hydroxylation suggests that the unusual catalytic activity on the Cu(2)(OH)PO(4) catalyst may be dependent on the unique structure of as-synthesized Cu(2)(OH)PO(4). Characterization of catalytic phenol hydroxylation over Cu(2)(OH)PO(4) catalyst by electron spin resonance (ESR) gives very strong signals assigned to hydroxyl radical ( OH) species, the intensities of which are linearly related to the catalytic conversion, suggesting that hydroxyl radicals are important intermediates in the catalysis.

• 出版日期2001-2-1
• 单位吉林大学