催化学报

催化学报 ›› 2006, Vol. 27 ›› Issue (12): 1087-1090.

• 研究论文 • 上一篇    下一篇

SnO2纳米材料的制备及其对丙烯醛还原反应的催化性能

焦昆1,许宁1,罗鸽1,谢颂海2,袁海英1,张春雷1   

  1. 1 上海华谊丙烯酸有限公司研究所, 上海 200137; 2 复旦大学化学系, 上海 200433
  • 收稿日期:2006-12-25 出版日期:2006-12-25 发布日期:2006-12-25

Synthesis of SnO2 Nano-Material and Its Catalytic Performance for the Reduction of Acrolein

JIAO Kun1, XU Ning1, LUO Ge1, XIE Songhai2, YUAN Haiying1, ZHANG Chunlei1*   

  1. 1 Research Institute of Shanghai Huayi Acrylic Acid Cooperation Limited, Shanghai 200137, China; 2 Department of Chemistry, Fudan University, Shanghai 200433, China
  • Received:2006-12-25 Online:2006-12-25 Published:2006-12-25

PDF

819

被引次数

7

摘要： 采用柠檬酸法制备了SnO2纳米材料,并采用差热-热重、 X射线衍射、透射电子显微镜和氮吸附等技术对其进行了表征,考察了其在丙烯醛还原制烯丙醇反应中的催化性能. 结果显示,制备的SnO2纳米材料粒径(尺寸为8～10 nm)均一, 并具有多孔性质(孔径4～6 nm); 在丙烯醛还原制烯丙醇反应中具有良好的催化性能,催化剂的初始活性很高,丙烯醛的初始转化率可达93.6%, 烯丙醇的最高选择性为60%, 烯丙醇的最高收率为47%. 表面结焦是造成催化剂失活的主要原因.

关键词: 纳米材料, 氧化锡, 丙烯醛, 还原, 烯丙醇

Abstract: A SnO2 nano-material was synthesized by the citric method and was characterized by thermogravimetry-differential thermal analysis, X-ray diffraction, transmission electron microscope, and N2 adsorption techniques. The SnO2 obtained is nano-crystalline with uniform particle size (8-10 nm) and porous structure (pore diameter 4-6 nm). The SnO2 nano-material displayed good catalytic performance for the reduction of acrolein to allyl alcohol. The catalyst had high initial activity, and the initial conversion of acrolein reached 93.6%. The highest selectivity and yield of allyl alcohol were 60% and 47%, respectively. Coke deposition on the catalyst surface mainly contributed to its deactivation.

Key words: nano-material, tin oxide, acrolein, reduction, allyl alcohol