The low-temperature specific heat of thermal reduced graphene oxide

被引：7
|
作者：
Sumarokov, V. V. [1 ]
Jezowski, A. [2 ]
Szewczyk, D. [2 ]
Dolbin, A. V. [1 ]
Vinnikov, N. A. [1 ]
Bagatskii, M. I. [1 ]
机构：
[1] Natl Acad Sci Ukraine, B Verkin Inst Low Temp Phys & Engn, 47 Nauky Ave, UA-61103 Kharkiv, Ukraine
[2] Polish Acad Sci, W Trzebiatowski Inst Low Temp & Struct Res, POB 1410, PL-50950 Wroclaw, Poland
来源：
LOW TEMPERATURE PHYSICS | 2020年 / 46卷 / 03期
关键词：
graphene oxide; graphite oxide; heat capacity; low-dimensional systems; REDUCTION; SORPTION; CAPACITY; HE-4;
D O I：
10.1063/10.0000703
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Measurements of heat capacity at constant pressure of thermally reduced graphene oxide (trGO) and graphite oxide (GtO) were performed in the temperature range from 1.8 to 275 K by thermal relaxation method. Above 15 K, the specific heat values of trGO and GtO are close to each other within 20%. Below 10 K, the ratio of the specific heat of trGO to the specific heat of GtO increases with decreasing temperature and reaches 5 at 2 K. It was found that the temperature dependence of the specific heat of trGO is of a complex character. There are temperature ranges in which of the specific heat of trGO is close to either linear or T-2.5.
引用
收藏
页码：301 / 305
页数：5
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