The Heat Capacity of Nanotube Bundles with 1D Chains of Gas Adsorbates

被引：6
作者：
Barabashko, M. S. [1 ]
Bagatskii, M. I. [1 ]
Sumarokov, V. V. [1 ]
机构：
[1] Natl Acad Sci Ukraine, B Verkin Inst Low Temp Phys & Engn, UA-61103 Kharkov, Ukraine
来源：
NANOTECHNOLOGY IN THE SECURITY SYSTEMS | 2015年
关键词：
SINGLE-WALLED CARBON; RADIAL THERMAL-EXPANSION; ADSORPTION; HYDROGEN; GROOVES; ENERGY; PORES; ROPES; XENON; XE;
D O I：
10.1007/978-94-017-9005-5_11
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The heat capacity of 1D chains of Xe adsorbed in the outer grooves of bundles of closed single-walled carbon nanotubes (c-SWNTs) have been investigated in the temperature range 2-85K. The experimental results of heat capacity are close to the theoretical calculation below 8K. Above 8K the experimental curve exceeds the theoretical one and excess increases monotonously with temperature. It was assumed that the sharp increase of the difference between the experimental and theoretical curves of heat capacity above 30 K is associated with the occurrence of the thermally created vacancies in the chains due to spatial redistribution of the xenon atoms. The molar enthalpy of vacancy formation in the chain has been calculated.
引用
收藏
页码：121 / 130
页数：10
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