CIESC Journal

• 工业催化 • 上一篇    下一篇

负载型金属催化剂表面金属分散度的测定

杨春雁,杨卫亚,凌凤香,范 峰   

  1. 中国石油化工股份有限公司抚顺石油化工研究院
  • 出版日期:2010-10-08 发布日期:2010-11-15

Determination of metal dispersion on supported metal catalyst surface

YANG Chunyan,YANG Weiya,LING Fengxiang,FAN Feng   

  1. Fushun Research Institute of Petroleum and Petrochemicals,SINOPEC
  • Online:2010-10-08 Published:2010-11-15

摘要: 简要介绍了几种催化剂表面金属分散度的测定方法,包括静态化学吸附法、动态化学吸附法、X射线光电子能谱法(XPS)、X射线衍射宽化法(XRD)和透射电子显微镜法(TEM)。同时,对这几种方法的适用范围、局限性和测定结果的一致性进行了讨论和总结。

Abstract: Different experimental methods for the determination of metal dispersion on supported metal catalyst are introduced and compared,including static chemical absorption,dynamic chemical absorption,X-ray photoelectron spectroscopy,X-ray diffraction(XRD)and transmission electron microscopy(TEM). At the same time,the suitable range,limitation and consistency with test results of these methods are discussed.