高等学校化学学报

高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (8): 1504.

• 研究简报 • 上一篇    下一篇

氟里昂替代物HFC-134a和HFC-152a的多光子电离研究

王青1, 孙凤龙1, 王文清1, 王栩2, 杨达林2, 朱起鹤2   

  1. 1. 北京大学技术物理系, 北京 100871;
    2. 中国科学院化学研究所, 北京 100080
  • 收稿日期:2001-05-21 出版日期:2002-08-24 发布日期:2002-08-24
  • 作者简介:王青(1972年出生),女,博士研究生,主要从事环保专业研究.

Studies on the Multiphoton Ionization Dissociation of HFC-152a and HFC-134a and the Evaluation for Their Application Prospects

WANG Qing1, SUN Feng-Long1, WANG Wen-Qing1, WANG Xu2, YANG Da-Lin2, ZHU Qi-He2   

  1. 1. Department of Technical Physics, Peking University, Beijing 100871, China;
    2. Institute of Chemistry, Chinese Academia Sinica, Beijing 100080, China
  • Received:2001-05-21 Online:2002-08-24 Published:2002-08-24

PDF (PC)

被引次数

14

关键词: 多光子电离, HFC-152a, HFC-134a, 飞行时间质谱

Abstract: The multiphoton ionization dissociation of HFC-152a and HFC-134a under the irradiation of 355 nm and 266 nm was studied in this work. Their photolyzed products were analyzed by time-of-flight mass spectrum instrument. The photolyzed products of HFC-152a include H+(m/z =1), C+(m/z =12), CH3+ (m/z =15), C2+(m/z =24), CF2H+(m/z =51), and CF+(m/z =31), whereas there is no clear products for HFC-134a photolyzation. Further, the application prospects of HFC-152a and HFC-134a in refrigeration sector were also evaluated from the view point of environmental protection, synthesis conditions and usage performance. It is suggested that HFC-152a is a better alternative compared to HFC-134a in refrigeration sector.

Key words: Multiphoton ionization, HFC-152a, HFC-134a, Time-of-flight mass spectrum

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