The mobility of excess electrons in liquid methane

✍ Scribed by J.M.L. Engels; A.J.M. Van Kimmenade

• Publisher: Elsevier Science
• Year: 1976
• Tongue: English
• Weight: 267 KB
• Volume: 42
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(76)80357-0

✦ Synopsis

The temperature dependence of rhe mobility of excess electrons in liquid methane is measured at temperatures between 91 K and 155 K. The results sqgest that the behaviour of excess electrons in molecular liquid methane has a streng simifarity to that in Iiquid argon.

Preiimínary results are reported of measurements on the mobility of excess electrons in pure Iiquid methane as a function of temperature and -to a lesset extent -of pressure. Earlier studies [I ,21 show a decrease in the mobility when the temperature is raised from 9 1 K to 140 R. When the temperature traject was extended to about 155 K, which necessitated pressures up to 13 atm, a hitherto unobscrved rise in the mobility was detected for temperatures higher than 140 K. The influence of the applied pressured on the mobility turned ou: to be negligible.

The mobility of the excess electrons in the liquid is determined by measuring the time of flight of the electrons between two electrodes immersed in the liquid sample. Injection of elecrrons into the !iquid