Au/γ-Al_2O_3催化氧化葡萄糖制备葡萄糖酸钠的研究  

Catalytic oxidation of glucose to sodium gluconate by Au/γ-Al_2O_3 catalysts

作　　者：许立信[1] 王豹[1] 李培杰[1] 徐艳艳[1] 崔平[1] 

机构地区：[1]安徽工业大学化学与化工学院,安徽马鞍山243002

出　　处：《食品工业科技》2012年第16期289-291,295,共4页Science and Technology of Food Industry

基　　金：安徽省教育厅重点项目(KJ2009A010Z);安徽工业大学创新团队建设计划;研究生创新研究基金项目(2010010);研究生导师创新基金项目(D201107)

摘　　要：采用阴离子交换法(DAE)制备Au/γ-Al2O3催化剂,并利用TEM、XRD等方法对催化剂进行了表征,考察了催化剂制备条件对催化氧化葡萄糖性能的影响。实验结果表明:随着金负载量、pH和焙烧温度的增加,催化剂的活性先上升后下降。较优的催化剂制备条件为:氯金酸浓度0.5mmol/L、pH4、300℃下焙烧4h;Au/γ-Al2O3催化剂的活性达到0.366molglu/(min·gAu)。Au/γ-Al2o3 catalysts were prepared by the direct anion exchange （DAE） method,characterized by TEM and XRD techniques and their catalytic performances were evaluated in glucose oxidation. The experimental results showed that as the gold Ioadings, pH and calcination temperatures increased,the catalytic activities of Au/γ-Al2o3 firstly increased and then decreased in the end. The optimal condition of catalyst preparation was as follows： HAuCI4 concentration 0.5mmol/L,pH4,calcination at 300℃ for 4h. A catalytic activity of 0.366molglu（min.gAu） were obtained over Au/γ-Al2O3 catalyst under the optimal preparation condition.

关 键 词：金催化剂 葡萄糖氧化 氧化铝 制备条件 

分 类 号：TS201.1[轻工技术与工程—食品科学]