Abstract: H₂O₂ is an attractive alternative oxidant to the common industrial oxidants since it has high content of active oxygen and only water as by-product when it degrades. The direct synthesis of H₂O₂ from H₂ and O₂ is an environmental-friendly alternative route with high atom utilization efficiency compared with the current industrial process and is expected to replace the current traditional preparation processes and to realize the one-step integration of H₂O₂ generation in-situ and selective oxidation reaction. This paper discusses the recent progresses regarding the integration application of H₂O₂ direct synthesis process and oxidation reactions, like propylene epoxidation, Fenton reaction, methane oxidation and others, and aims to provide new research perspective for the in-situ oxidation reaction of H₂, O₂ and organic compounds systems through summarizing the exiting results and problems.

Key words: catalysis, hydrogen peroxide, direct synthesis, in-situ oxidation