For propylene epoxidation,characterization revealed that the hydroperoxide species formed on Au surface by reaction of H2 and O2 was the intermediate of the reaction.

• 在丙烯直接环氧化反应中,由H2和O2在金颗粒表面反应生成的过氧化物种是反应中间体; 在选择性氧化和选择性加氢反应中,金催化剂表现出优良的活性和稳定性。