Sulfonated carbon catalyzed oxidation of aldehydes to carboxylic acids by hydrogen peroxide

• 作 者: Lipeng Zhou Beibei Dong Si Tang Hong Ma Chen Chen Jie Xu Xiaomei Yang Jie Xu
• 机 构: College of Chemistry and Molecular Engineering,Zhengzhou University,State Key Laboratory of Catalysi
• 出 处: Journal of Energy Chemistry
• 发表日期: 2013年04期
• 关键词: aldehydes carboxylic catalyzed oxidant aromatic recycled characterize benzaldehy

Sulfonated carbon as a strong and stable solid acid catalyst exhibited excellent catalytic performance in various acid-catalyzed reactions. Here, sulfonated carbon, as catalyst for oxidation reaction, was prepared via the carbonization of starch followed by sulfonation with concentrated sulfuric acid. N2 physisorption, X-ray diffraction, Fourier transform infrared spectroscopy, X-ray fluorescence and acid-base titration were used to characterize the obtained materials. The catalytic activity of sulfonated carbon was studied in the oxidation of aldehydes to carboxylic acids using 30 wt% H2O2 as oxidant. This oxidation protocol works well for various aldehydes including aromatic and aliphatic aldehydes. The sulfonated carbon can be recycled for three times without obvious loss of activity.

Sulfonated carbon as a strong and stable solid acid catalyst demonstrated excellent catalytic performance in various acid-catalyzed reactions. Here, sulfonated carbon, as catalyst for oxidation reaction, was prepared via the carbonization of starch followed by sulfonation with concentrated sulfuric acid. N2 physisorption, X-ray diffraction, Fourier transform infrared spectroscopy, X-ray fluorescence and acid-base titration were used to characterize the obtained materials. The catalytic activity of sulfonated carbon was studied in the oxidation of aldehydes to carboxylic acids using 30 wt% H2O2 as oxidant This oxidation protocol works well for various aldehydes including aromatic and aliphatic aldehydes. The sulfonated carbon can be recycled for three times without obvious loss of activity.