Selective oxidation of benzyl alcohol to benzaldehyde over Co3O4/HY catalyst
WANG Yuan-yuan1, DONG Xing-shen1, SONG Hua1, ZHANG Mei1, SUN Xing-long2, WANG Xue-qin1, WANG Wen-yi1, ZHU Tian-han1
1. College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing 163318, China; 2. Daqing Petrochemical Engineering Co., Ltd., Daqing 163714, China
Abstract: Co3O4/HY composite molecular sieve catalysts are synthesized by a hydrothermal method with HY molecular sieve as carrier.The prepared catalysts are characterized by means of XRD,SEM,EDS,FT-IR,and BET.Moreover,the catalytic properties of Co3O4/HY for the oxidation of benzyl alcohol to benzaldehyde using oxygen as an oxidant are investigated.The result shows that the loading of Co3O4 on HY molecular sieve has not destroyed the framework structure of HY,and Co3O4 forms a porous cellular structure on the surface of HY,which can effectively help the catalyst to increase the mesopores volume and the external surface area,therefore enhancing the catalytic activity.While the decreases of mesopores volume and external surface area are observed for 2.0-Co3O4/HY,which can be explained by stacked phenomenon due to the high loading of Co3O4.The conversion of benzyl alcohol reaches 73.2% and the selectivity of benzaldehyde reaches 95.8% when the reaction has been performed over 1.0 m-Co3O4/HY catalyst under suitable reaction conditions.The catalyst has still shown a good catalytic activity after it has been reused for 5 runs.
王园园, 董省身, 宋华, 张梅, 孙兴龙, 王雪芹, 王文艺, 朱天汉. Co3O4/HY选择性催化苯甲醇氧化合成苯甲醛的研究[J]. 现代化工, 2022, 42(7): 114-119.
WANG Yuan-yuan, DONG Xing-shen, SONG Hua, ZHANG Mei, SUN Xing-long, WANG Xue-qin, WANG Wen-yi, ZHU Tian-han. Selective oxidation of benzyl alcohol to benzaldehyde over Co3O4/HY catalyst. Modern Chemical Industry, 2022, 42(7): 114-119.
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