Work

Enhanced thermoelectric performance of TiO 2 -based hybrid materials by incorporating conducting polymer

Year: 2015

Type: article

Abstract: In order to study the thermoelectric properties of TiO 2 -based hybrid materials, TiO 2 /polyparaphenylene (PPP) nanocomposites are fabricated by spark plasma sintering (SPS). The results show that the electrical conductivity follow percolation theory is enhanced due to the electron transfer highway provided by the conducting PPP phase. Furthermore, the thermal conductivity is reduced due to the drastic difference of vibrational spectra between organic and inorganic components. As a result, the greatest ZT = 0.24 is obtained for TiO 2 /0.75 wt% PPP sample, which is 15-fold higher than pure TiO 2 (ZT = 0.016).

Source: Chinese Physics B

DOI: 10.1088/1674-1056/24/3/034402

Authors: Zi-Hua Wu, Hua-Qing Xie, Yong-Biao Zhai, Liang-Hua Gan, Jun Liu

Institution: Shanghai Polytechnic University

Language: English

Topic: Advanced Thermoelectric Materials and Devices

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: bronze

Funders: National Natural Science Foundation of China, Shanghai Municipal Education Commission, Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning, CAS Key Laboratory of Materials for Energy Conversion