物理化学学报 >> 2014, Vol. 30 >> Issue (3): 520-526.doi: 10.3866/PKU.WHXB201401061

催化和表面科学 上一篇    下一篇

不同结构Cu2O多晶的合成及其对高氯酸铵热分解的催化作用

罗小林1,2, 杨得锁1, 原春兰1, 罗旭梅1, 陈亚芍2   

  1. 1 宝鸡文理学院化学化工系, 植物化学陕西省重点实验室, 陕西宝鸡 721013;
    2 陕西师范大学化学化工学院, 应用表面与胶体化学教育部重点实验室, 西安 710062
  • 收稿日期:2013-09-04 修回日期:2014-01-02 发布日期:2014-02-27
  • 通讯作者: 罗小林 E-mail:luoxl225@163.com
  • 基金资助:

    陕西省教育厅项目(11JK0603),陕西省重点实验室项目(11JS007)及宝鸡文理学院院级项目(ZK11151)资助

Catalytic Performance of Polycrystalline Cu2O with Different Structures on the Thermal Decomposition of Ammonium Perchlorate

LUO Xiao-Lin1,2, YANG De-Suo1, YUAN Chun-Lan1, LUO Xu-Mei1, CHEN Ya-Shao2   

  1. 1 Department of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Shaanxi Key Laboratory for Phytochemistry, Baoji 721013, Shaanxi Province, P. R. China;
    2 Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P. R. China
  • Received:2013-09-04 Revised:2014-01-02 Published:2014-02-27
  • Contact: LUO Xiao-Lin E-mail:luoxl225@163.com
  • Supported by:

    The project was supported by the Shannxi Provincial Department of Education Project, China (11JK0603), Shannxi Provincial Key Laboratory Project, China (11JS007), and Research Foundation of the Baoji University of Arts and Sciences, China (ZK11151).

摘要:

利用均相反应器,在没有添加剂的条件下合成了具有多孔结构的Cu2O微球. 考察了合成时间以及反应器旋转速度对Cu2O微球结构的影响. 通过增加聚乙烯吡咯烷酮(PVP)的用量,使得Cu2O从多孔微球转变为立方体孪晶,最终形成十四面体孪晶结构. 同时,将不同结构的Cu2O多晶应用于催化高氯酸铵(AP)的热分解,结果表明:多孔Cu2O微球较其它结构的Cu2O对AP的热分解具有更高的催化活性,使得AP的低温分解温度降低了37.4 ℃,而AP在低温阶段的分解量也由8.7%增加至49.0%.

关键词: Cu2O, 均相反应器, 高氯酸铵, 热分解

Abstract:

Porous Cu2O micro-spheres were synthesized without additives, using a homogeneous reactor. The effects of synthesis time and reactor rolling speed on the Cu2O micro-spheres structure were investigated. Increasing the use of polyvinylpyrrolidone, the porous Cu2O micro-spheres transformed into cubic twined crystals, and then into cubic-octahedral twined crystals. Cu2O micro-crystals with different structures were used to catalyze the thermal decomposition of ammonium perchlorate (AP). The catalytic activity of porous Cu2O micro-spheres was better than those of the cubic twined and cubic-octahedral twined crystals. The low temperature of AP decomposition decreased for 37.4 ℃ when catalyzed by the porous Cu2O micro-spheres, and amount of AP decomposed at low temperature increased from 8.7% to 49.0%.

Key words: Cu2O, Homogeneous reactor, Ammonium perchlorate, Thermal decomposition

MSC2000: 

  • O643