纳米ZnO催化生物乙醇转化的形貌效应  

Morphology Effect of Nano-ZnO on Catalytic Performance for Bio-Ethanol Selective Conversion

作　　者：曹艳丽[1] 何荣[1] 张慧妍[1] 曲惠迟 唐飞鹏[1] 门勇[1] CAO Yanli HE Rong ZHANG Huiyan QU Huichi TANG Feipeng MEN Yong(School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China)

机构地区：[1]上海工程技术大学化学化工学院,上海201620

出　　处：《上海工程技术大学学报》2017年第2期178-182,共5页Journal of Shanghai University of Engineering Science

基　　金：上海工程技术大学大学生创新训练计划资助项目(cx1604001)

摘　　要：利用水热法合成了棒状、片状、球状结构的氧化锌(ZnO)纳米晶粒,评价了不同形貌的纳米ZnO对生物乙醇转化的催化活性,并采用扫描电子显微镜(SEM)、X线衍射(XRD)及程序升温脱附(NH_3-TPD,CO_2-TPD)等研究手段对ZnO的形貌及表面酸碱性等物相结构进行了表征.结果表明:不同形貌的纳米ZnO具有不同的表面酸碱性,从而在生物乙醇催化转化的反应路径及产物选择性调控方面表现出一定的形貌效应.ZnO nano-grain with different morphologies （rods,sheets and spheres） were synthesized by hydrothermal method and the morphology effect of nano-ZnO was evaluated for the bio-ethanol catalytic transformation. The structure and acid-base properties of the samples were characterized by scanning electron microscope （SEM）, X-ray diffraction （XRD） and temperature programmed descorption （TPD） （NH3-TPD,CO2-TPD）. The results suggest that the morphologies of nano-ZnO will affect the surface acid-base properties and thus influence reaction path as well as the product selectivity of bio-ethanol conversion.

关 键 词：生物乙醇 水热法 纳米氧化锌 形貌效应 

分 类 号：O643.322[理学—物理化学]