| Title | Direct conversion and NMR observation of cellulose to glucose and 5-hydroxymethylfurfural (HMF) catalyzed by the acidic ionic liquids |
| Authors | Jiang, Feng Zhu, Qingjun Ma, Ding Liu, Xiumei Han, Xiuwen |
| Affiliation | Peking Univ, Beijing Natl Lab Mol Sci, State Key Lab Struct Chem Stable & Unstable Speci, Coll Chem & Mol Engn, Beijing 100871, Peoples R China. Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China. |
| Keywords | Hydrolysis of cellulose Ionic liquids In situ (13)C NMR Acidic catalysis Apparent activation energy HYDROLYSIS FUELS WATER |
| Issue Date | 2011 |
| Publisher | journal of molecular catalysis a chemical |
| Citation | JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL.2011,334,(1-2),8-12. |
| Abstract | The hydrolysis of cellulose was catalyzed over a variety of acidic ionic liquids (ILs). It is found that the hydrolysis activity is directly associated with the acidity of catalysts, as evidenced by IR spectroscopy. (13)C NMR characterization results confirm the majority product of cellulose hydrolysis is glucose, and the resulting carbohydrates undergo further degradation, possibly also catalyzed by the acidic ILs, to 5-hydroxymethylfurfural (HMF). Moreover, in situ (13)C NMR measurements clearly exhibit that the evolution of products is dependent on the reaction process. we attempt to study the kinetics of cellulose hydrolysis over the most active catalyst of [C(4)SO(3)Hmim]HSO(4) at different temperatures (80-120 degrees C) to obtain the important kinetic parameters such as apparent activation energies of consecutive reaction steps. (C) 2010 Elsevier B.V. All rights reserved. |
| URI | http://hdl.handle.net/20.500.11897/243609 |
| ISSN | 1381-1169 |
| DOI | 10.1016/j.molcata.2010.10.006 |
| Indexed | SCI(E) |
| Appears in Collections: | å å¦ä¸ å å å·¥ç¨ å¦é ¢ |
