Supercooling behaviors of normal alkanes in the homologous series C6H14 to C11H24 under Titan conditions
Abstract
The supercooling behaviors of n-alkanes during the solid–liquid phase transition offer a promising explanation to the phenomenon of energy conversion and transfer across seasons and regions observed on Titan. However, research on the supercooling behaviors of n-alkanes under Titan’s internal pressure (P) and temperature (T) conditions (<4.9 GPa; 93–900 K) remains inadequate. Here, we present findings from laboratory experiments conducted under high P–T conditions, exploring the P–T phase diagrams and supercooling behaviors of six n-alkanes [n-CnH2n+2 (6 ≤ n ≤ 11)]. The current results indicate that all measured n-alkanes exhibit supercooling behaviors, with the supercooling degree increasing as pressure increases. At the same pressure, the supercooling degree of both odd and even n-alkanes decreases as the carbon chain length increases. Under Titan’s central pressure of 4.9 GPa, n-heptane shows the highest supercooling degree among the measured n-alkanes, reaching up to 63 K.
Article Details
Journal Info
The Journal of Chemical Physics
American Institute of Physics
Authors (9)
Zhijian Gao
Laboratory of Quantum Materials Under Extreme Conditions in Shandong Province, School of Physics Science and Information Technology, Liaocheng University 1 , Liaocheng 252000,
Chuanxin Yan
Laboratory of Quantum Materials Under Extreme Conditions in Shandong Province, School of Physics Science and Information Technology, Liaocheng University 1 , Liaocheng 252000,
Huiyuan Guo
Laboratory of Quantum Materials Under Extreme Conditions in Shandong Province, School of Physics Science and Information Technology, Liaocheng University 1 , Liaocheng 252000,
Jialiang Jiang
Haiwa Zhang
Laboratory of Quantum Materials Under Extreme Conditions in Shandong Province, School of Physics Science and Information Technology, Liaocheng University 1 , Liaocheng 252000,
Guozhao Zhang
Laboratory of Quantum Materials Under Extreme Conditions in Shandong Province, School of Physics Science and Information Technology, Liaocheng University 1 , Liaocheng 252000,
Qinglin Wang
Laboratory of Quantum Materials Under Extreme Conditions in Shandong Province, School of Physics Science and Information Technology, Liaocheng University 1 , Liaocheng 252000,
Yinwei Li
Laboratory of Quantum Functional Materials Design and Application, School of Physics and Electronic Engineering
Cailong Liu
Laboratory of Quantum Materials Under Extreme Conditions in Shandong Province, School of Physics Science and Information Technology, Liaocheng University 1 , Liaocheng 252000,