Graphene-doped Ca0.9Er0.1Mn1.5Oα thermoelectric nanocomposite materials: Temperature-dependent thermal and Seebeck properties

被引：2

作者：

Kocyigit, Serhat ^{[1
,2
]}

Aytimur, Arda ^{[2
]}

Uslu, Ibrahim ^{[3
]}

机构：

[1] Bingol Univ, Pilot Univ Cent Coordinat Unit, TR-12000 Bingol, Turkey

[2] Gazi Univ, Dept Adv Technol, TR-06500 Ankara, Turkey

[3] Gazi Univ, Dept Chem Educ, TR-06500 Ankara, Turkey

来源：

CERAMICS INTERNATIONAL | 2020年 / 46卷 / 05期

关键词：

Graphene; Manganites; Nanocrystals; Seebeck coefficient; Thermal properties; CALCIUM-CARBONATE; OXIDE; PERFORMANCE; CA3CO4O9;

D O I：

10.1016/j.ceramint.2019.11.115

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The primary purpose of this study was to observe the effects of graphene doping on the structure and the physical properties of n-type thermoelectric materials. Structural characterizations of the produced materials were measured by X-ray diffraction (XRD), scanning electron microscope (SEM), energy-dispersive X-ray spectroscopy (EDX), and Fourier-transform infrared spectroscopy (FTIR). Temperature-dependent thermal conductivity and the Seebeck coefficient measurements were applied via physical properties measurement system (PPMS). After XRD analyses, the diffractograms showed that the produced materials had crystalline forms. With respect to observing SEM micrographs, the homogenization of the samples usually increased with graphene doping. The results of temperature-dependent thermal conductivity and the Seebeck coefficient measurements revealed that graphene doping had a positive influence on both values.

引用

页码：6377 / 6382

页数：6