Work

Microstructure and Thermoelectric Properties of Na0.5CoO2

Year: 2013

Type: article

Abstract: The polycrystalline of sodium cobalt oxide (Na0.5CoO2) was synthesized by solid state reaction method and sintering method. The microstructure was composed of powder size and crystal structure. The Seebeck coefficient and electrical resistivity are measured. We found that the concentration of sodium ions sandwiched between two neighboring CoO2 layers played a crucial role in transport properties. The results showed small particle size, single phase and orthorhombic structure. The Seebeck coefficient of Na0.5CoO2 increased as the temperature increased. The electrical resistivity was decreased as temperature decreased from the range 300-500 K.

Source: Advanced materials research

DOI: 10.4028/www.scientific.net/amr.802.218

Authors: Wanatchaporn Namhongsa, Tosawat Seetawan, Pennapa Muthitamongkol, Chanchana Thanachayanont

Institutions: Sakon Nakhon Rajabhat University, National Science and Technology Development Agency, Thailand National Metal and Materials Technology Center

Language: English

Topic: Advanced Thermoelectric Materials and Devices

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Funders: Electricity Generating Authority of Thailand, National Metal and Materials Technology Center, Division of Materials Research

OpenAlex ID: W2242709476

FWCI: 0.134

Cites: 5

Cited by: 1

Related to: 10