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学科主题: 物理化学
题名: Lignosulfonate-based heterogeneous sulfonic acid catalyst for hydrolyzing glycosidic bonds of polysaccharides
作者: Zhang, Xiaochen1;  Zhang, Zhe1, 2;  Wang, Feng1;  Wang, Yehong1;  Song, Qi1, 2;  Xu, Jie1
通讯作者: 王峰 ;  徐杰
关键词: Lignosulfonate ;  Catalyst ;  Hydrolysis ;  Cellulose ;  Cellobiose
刊名: JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
发表日期: 2013-10-01
DOI: 10.1016/j.molcata.2013.05.001
卷: 377, 页:102-107
收录类别: SCI
合作性质: 
文章类型: Article
部门归属: DNL06
项目归属: DNL06T1
产权排名: 待补充
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
资助者: 1,1
研究领域[WOS]: Chemistry
英文摘要: We report a novel lignosulfonate-based heterogeneous sulfonic acid catalyst (LF) which offered high yields of monosaccharides (75-98%) in hydrolysis of polysaccharides, such as cellobiose, maltose, D-melezitose, sucrose, inulin, and starch. Specific activity in cellobiose hydrolysis was 5.6 +/- 0.3 mol glucose per mol -SO3H. Kinetic analysis showed that the apparent activation energy of cellobiose hydrolysis over the LF catalyst is 98.5 kJ mol(-1), which was less than 110-138 kJ mol(-1) for mineral acids, organic acid homogeneous catalysts or grafted sulfonic acids. The catalyst was recycled by filtration and reused four times in cellobiose hydrolysis without apparent loss of catalytic activity. NMR characterization suggests that the better accessibility of cellobiose to -SO3H sites and multiple bindings of hydroxyls of cellobiose on -COOH and -OH sites may account for its superior performance. This is a new method of utilizing pulp industry waste as sulfonic acid precursor; otherwise sulfonation process is required for preparing heterogeneous sulfonic acid catalysts. (c) 2013 Elsevier B.V. All rights reserved.
关键词[WOS]: CARBON BEARING SO3H ;  ETHYLENE-GLYCOL ;  SOLID CATALYST ;  SULFURIC-ACID ;  OH GROUPS ;  CELLULOSE ;  CONVERSION ;  CELLOBIOSE ;  CHEMICALS ;  GRAPHENE
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000323361600012
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/119284
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, State Key Lab Catalysis, Dalian Natl Lab Clean Energy, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

Recommended Citation:
Zhang, Xiaochen,Zhang, Zhe,Wang, Feng,et al. Lignosulfonate-based heterogeneous sulfonic acid catalyst for hydrolyzing glycosidic bonds of polysaccharides[J]. JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL,2013,377:102-107.
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