磺酸化无定形碳催化剂的制备及其应用  

Preparation and Catalytic Applications of Sulfonated Amorphous Carbon Materials as Highly Active Solid Acid Catalyst

作　　者：王佳[1] 牛棱渊[1] 洪伟[1] 陈丽娜[1] 赵磊[1] 贾娜[1] 马恒昌[1] 杨志旺[1] 

机构地区：[1]西北师范大学化学化工学院生态环境相关高分子材料教育部重点实验室甘肃省高分子材料重点实验室,甘肃兰州730070

出　　处：《精细化工》2012年第3期266-271,275,共7页Fine Chemicals

基　　金：国家自然科学基金(21163016;21174114);甘肃省自然科学基金(1010RJZA024);西北师范大学创新群体基金(NWNU-KJCXGC-03-63)~~

摘　　要：采用加热回流法制备了磺酸化无定形碳固体酸催化剂。通过电感耦合等离子体发射光谱(ICP-AES)、酸碱电位滴定、傅里叶变换红外光谱(FTIR)、X射线粉末衍射(XRD)、扫描电镜(SEM)和热重分析(TGA)等方法对催化剂进行了表征。结果表明,催化剂结构中—SO3H负载量为2.03 mmol/g,与其他固体酸类催化剂相比,磺酸化无定形碳在催化环酮类化合物的Baeyer-Villiger氧化反应以及苯甲醚和苄醇的傅-克烷基化反应中均显示了良好的催化活性。所得催化剂热稳定性好,制备过程简单。Abstract： Sulfonic acid group-functionalized amorphous carbon solid acid catalyst （AC-SO3H） was prepared through vapour-phase transfer sulfonation method. The material was characterized by means of inductively coupled plasma atomic emission spectrometry （ICP-AES）, Fourier-transform infrared spectrum （ FTIR ）, X-ray powder diffraction （ XRD ）, scanning electronic microscopy （ SEM ） and thermogravimetric analysis （TGA）. Elemental analysis results show that the obtained solid acid catalyst has a --SO3 H group loading of 2. 03 mmol/g. Compared with other solid acid catalysts, AC-SO3 H shows enhanced activity and proves to be efficient heterogeneous catalyst for Baeyer-Villiger oxidation of ketones and Friedel-Crafts alkylation of anisole with benzyl alcohol. The catalyst shows excellent thermal and structural stability, and retains good activity over several cycles. The synthesis process is simple and the catalyst can be easily prepared on a large scale.

关 键 词：磺酸化无定形碳 Baeyer-Villiger氧化反应 傅-克烷基化反应 固体酸催化剂 催化技术 

分 类 号：TQ426[化学工程] O643[理学—物理化学]