https://scholars.lib.ntu.edu.tw/handle/123456789/408875
標題: | Hydrogen Peroxide Assisted Selective Oxidation of 5-Hydroxymethylfurfural in Water under Mild Conditions | 作者: | Chen C.-T. Van Nguyen C. Wang Z.-Y. Bando Y. Yamauchi Y. Bazziz M.T.S. Fatehmulla A. Farooq W.A. Yoshikawa T. Masuda T. Wu K.C.-W. |
關鍵字: | 2,5-furandicarboxylic acid;5-hydroxymethylfurfural;hydrogen peroxide;oxidation;ruthenium | 公開日期: | 2018 | 卷: | 10 | 期: | 2 | 起(迄)頁: | 361-365 | 來源出版物: | ChemCatChem | 摘要: | An effective and selective method for the oxidation of 5-hydroxymethylfurfural (HMF) by using hydrogen peroxide (H 2 O 2 ) as the liquid oxygen source and activated-carbon-supported ruthenium (Ru/AC) as the catalyst was developed. This reaction system allowed HMF to be oxidized in water under mild reaction conditions efficiently, as it was shown to have lower mass-transfer resistance than gaseous oxygen-assisted oxidation systems. In addition, we could selectively control the components of the oxidation products by adjusting the reaction conditions. We optimized several reaction parameters such as the reaction temperature (75 ¢XC), time (t=1 or 6 h), base additive (sodium carbonate), and the HMF/catalyst ratio (50 or 10) to attain the desired products in maximum yields. Thus, 5-formyl-2-furoic acid was obtained in a high yield up to 92 % with a HMF/catalyst ratio of 50 and a reaction time of 1 h, whereas 2,5-furandicarboxylic acid was obtained in a maximum yield of 91.3 % with a HMF/catalyst ratio of 10 and a reaction time of 6 h. A possible mechanism for the selective oxidation of HMF was also discussed. We envision that the H 2 O 2 -mediated oxidation systems proposed in this study would be of great benefit to other organic oxidation systems. ? 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/408875 | ISSN: | 18673880 | DOI: | 10.1002/cctc.201701302 |
顯示於: | 化學工程學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。