期刊
RSC ADVANCES
卷 5, 期 36, 页码 28478-28486出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra02645h
关键词
-
资金
- Nebraska Center for Energy Sciences and Army Research Office [W911NF-10-2-0099]
- UCARE program at the University of Nebraska-Lincoln (UNL)
- NASA Nebraska Space Grant Fellowship
A hybrid catalyst composed of phosphotungstic acid coated cerium oxide nanoparticles was demonstrated to catalyze the one-pot conversion of cellobiose, the disaccharide unit of cellulose, to a monosaccharide mixture of glucose and mannose. A high % conversion of cellobiose (up to 99%) was achieved resulting in a yield of mannose up to 15.8%. The yield of mannose from a glucose starting material was 22.8%, exceeding those of previous cerium-based glucose epimerization catalysts. The components of the hybrid material were revealed to function synergistically via a two-step process. Cellobiose was hypothesized to be first hydrolyzed to glucose, which was subsequently epimerized to mannose by the cerium ions leached from the catalyst. The C-13 NMR spectroscopic study suggested that the epimerization likely occurred by way of a 1,2-carbon shift reaction mechanism.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据