Work

High cross‐plane thermoelectric performance of carbon nanotube sponge films

Year: 2019

Type: article

Abstract: In this study, carbon nanotubes (CNTs) are packed to prepare CNT films with chemical-vapor-deposition method and vacuum filtration, then the films are piled up to make anisotropic three-dimensional CNT sponges (CNS). This sponge is demonstrated to be a promising thermoelectric material. Its cross-plane figure of merit (ZT⊥) is much larger than that along the in-plane direction (ZT∥), and the maximum ZT⊥ is about 2.99 × 10−3 at 290 K. This high ZT⊥ is attributed to small thermal conductivity of CNS in ⊥ direction, because of small size of pores in CNS and the low k of CNTs along the radial direction.

Source: International Journal of Energy Research

DOI: 10.1002/er.5043

Authors: Dongxu Wu, Congliang Huang

Institution: China University of Mining and Technology

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

Funder: Fundamental Research Funds for the Central Universities