1. A possible mechanism involving activation of dioxygen was proposed.

2. Electrocatalytic activation of dioxygen for chlorophenol degradation was studied.

3. Binding of dioxygen and catalytic activity are the promising properties.

4. The carboxylate-bridged non-heme diiron centers can activate dioxygen in a variety of nature enzymes.

5. A postulated mechanism of the degradation is that sulfate acts as an electron carrier which transfers electrons from aluminum metal to dioxygen.

6. The preparation of ADC foaming agent from biurea by dioxygen catalytic oxidation was investigated and discussed.

7. Here(Sentence dictionary), we reported a new method of direct hydroxylation of benzene to phenol with dioxygen in presence of amine based on the results gained by formers in our group on the benzene hydroxylation.

8. It is showed that under optimum condition, the yield ofp-chlorobenzaldehyde is 20% of 28% via air or dioxygen oxidation under ordinary pressure, 34% under 0.3Mpa via dioxygen oxidation.

9. Catalase (EC 1.11.1.6 CAT) is one of the main antioxidant enzymes in Organisms that catalyzes the dismutation of H_2O_2 to water and dioxygen.

10. Both synthetic and natural complexes which can reversibly bind dioxygen are termed oxygen carrier.

11. The influence of the substituted groups R in ligands and potassium ion in the crown ring on formation and stability of dioxygen adducts was investigated.