Abstract:

Advances in catalysts for liquid-phase selective oxidation of toluene are reviewed according to the types of catalysts developed，such as transition metal oxides and supported transition metal oxides，heteropolyacids and supported heteropolyoxometalates，metal complexes and immobilized metal complexes，molecular sieve based catalysts and catalysts in supercritical CO₂. Properties and performance of these catalysts are comparatively summarized，and the development of effective catalyst for the reaction is discussed. It is proposed that effective green catalyst developed by the guidance of the function-properties relation is necessary for obtaining selective oxidation products with high yield.