Recent progress in catalytic oxidation of cyclohexane employing O₂ as an oxidant have been reviewed, including the metal complex catalysis, metal nanoparticle catalysis, metal oxide particle catalysis, molecular sieve catalysis, carbon material catalysis, photo-promotion catalysis, polyoxometalates catalysis, metal-organic framework material catalysis and so on. It is pointed out that the research and development of heterogeneous catalytic system by O₂ as an oxidant with high activity and selectivity will be the focus of catalytic oxidation of cyclohexane in the future, especially for the multi-metal composite system, even the multi-element composite system. This paper will not only act as an important reference in the research and development of catalytic system of cyclohexane with high activity and selectivity, and to improve the preparation process of cyclohexanol and cyclohexanone in industry, but also act as an important reference in the research and development of catalytic system for other hydrocarbon oxidation and non-hydrocarbon oxidation.
Contents
1 Introduction
2 Metal complex catalysis
2.1 Non metalloporphyrin catalysis
2.2 Metalloporphyrin catalysis
3 Metal nanoparticle catalysis
4 Metal oxide particle catalysis
5 Molecular sieve catalysis
6 Carbon material catalysis
7 Photo-promotion catalysis
8 Other catalysis
9 Conclusion