物理化学学报 >> 1999, Vol. 15 >> Issue (12): 1119-1122.doi: 10.3866/PKU.WHXB19991213

研究简报 上一篇    

Ni-P非晶合金催化剂的制备、结构和性能

陈昌荣, 卞国柱, 姜明, 李忠瑞, 韦世强   

  1. 中国科学技术大学化学物理系,国家同步辐射实验室,合肥 230026
  • 收稿日期:1999-01-25 修回日期:1999-05-24 发布日期:1999-12-15
  • 通讯作者: 韦世强

Preparations,Structures and Properties of Amorphous Ni-P Alloy Catalysts

Chen Chang-Rong, Bian Guo-Zhu, Jiang Ming, Li Zhong-Rui, Wei Shi-Qiang   

  1. University of Science and Technology of China,Hefei 230026
  • Received:1999-01-25 Revised:1999-05-24 Published:1999-12-15
  • Contact: Wei Shi-Qiang

关键词: 化学还原法, 非晶态Ni-P合金, 苯加氢性能能

Abstract:

Benzene hydrogenation was used as a test reaction for the ultrafine amorphous Ni P catalysts prepared by chemical reduction. The results show that the preparation temperature and initial pH of the solutions strongly affect their structures and the activities of benzene hydrogenation. XAFS and DTA were employed to characterize the structures of the amorphous Ni P alloys prepared under different conditions and annealed at various temperatures. It was found that an abrupt decrease of the catalytic activity was observed at the annealing temperature of about 300℃,which corresponds to the crystallization temperature of the amorphous Ni P alloy catalysts.

Key words: Chemical reduction, Amorphous Ni-P alloy, Benzene hydrogenation