中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Mild oxalic acid-catalyzed hydrolysis as a novel approach to prepare cellulose nanocrystals.

文献类型:期刊论文

作者Wenyang Xu, Henrik Grénman, Jun Liu, Dennis Kronlund, Bin Li, Peter Backman, Jouko Peltonen, Stefan Willför, Anna Sundberg, Chunlin Xu.
刊名ChemNanoMat
出版日期2017-01-16
卷号3页码:109-119
DOI10.1002/cnma.201600347
文献子类Article
英文摘要The traditional method to isolate cellulose nanocrystals (CNCs) is to subject cellulosic materials to strong acid hydrolysis by mineral acids, which usually causes problems such as corrosion of equipment, the need for large amounts of water, the difficulty of acid recovery, and over-degradation of cellulose. Thus, a green and sustainable approach for the preparation of CNCs was developed where mild acid hydrolysis with diluted oxalic acid was used. The reaction kinetics of different preparation parameters, such as reaction temperature, oxalic acid dose, addition of HCl, and reaction time were thoroughly investigated. A high yield of up to 85 % was achieved by mild oxalic acid hydrolysis in comparison to the yield of 35 % using the most common approach with sulfuric acid hydrolysis. The CNCs from the above approach have a high thermal stability, that is, a maximum thermal degradation temperature of 350 °C in comparison to 200 °C when sulfuric acid hydrolysis was used. Importantly, oxalic acid solutions were readily recovered, and exhibited consistently high performance in several continuous runs of reaction. The hydrolysates contained mostly monomeric sugars, which could be further utilized for chemical or biofuel production.
源URL[http://ir.qibebt.ac.cn/handle/337004/9893]  
专题青岛生物能源与过程研究所_材料生物技术研究中心
推荐引用方式
GB/T 7714
Wenyang Xu, Henrik Grénman, Jun Liu, Dennis Kronlund, Bin Li, Peter Backman, Jouko Peltonen, Stefan Willför, Anna Sundberg, Chunlin Xu.. Mild oxalic acid-catalyzed hydrolysis as a novel approach to prepare cellulose nanocrystals.[J]. ChemNanoMat,2017,3:109-119.
APA Wenyang Xu, Henrik Grénman, Jun Liu, Dennis Kronlund, Bin Li, Peter Backman, Jouko Peltonen, Stefan Willför, Anna Sundberg, Chunlin Xu..(2017).Mild oxalic acid-catalyzed hydrolysis as a novel approach to prepare cellulose nanocrystals..ChemNanoMat,3,109-119.
MLA Wenyang Xu, Henrik Grénman, Jun Liu, Dennis Kronlund, Bin Li, Peter Backman, Jouko Peltonen, Stefan Willför, Anna Sundberg, Chunlin Xu.."Mild oxalic acid-catalyzed hydrolysis as a novel approach to prepare cellulose nanocrystals.".ChemNanoMat 3(2017):109-119.

入库方式: OAI收割

来源:青岛生物能源与过程研究所

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