Nanostructured oxide materials and modules for high temperature power generation from waste heat

Ngo Van Nong, Nini Pryds

Research output: Contribution to journalConference articleResearchpeer-review

Abstract

A large amount of thermal energy that emitted from many industrial processes is available as waste heat. Thermoelectric power generators that convert heat directly into electricity can offer a very promising way for waste heat recovery. However, the requirements for this task place in the materials are not easily satisfied by conventional thermoelectric materials. Not only they must possess a sufficient thermoelectric performance, they should also be stable at high temperatures, nontoxic and low-cost comprising elements, and must be also able to be processed and shaped cheaply. Oxides are among the strongest candidate materials for this purpose. In this review, the progress in the development of two representative p- and n-type novel oxide materials based on Ca3Co4O9 and doped-ZnO is presented. Thermoelectric modules built up from these oxides were fabricated, tested at high temperatures, and compared with other similar oxide modules reported in the literature. A maximum power density of 4.5 kW/m2 was obtained for an oxide module comprising of 8 p-n couples at a temperature difference of 496 K, an encouraging result in the context of the present high temperature oxide modules.
Original languageEnglish
JournalAdvances in Natural Sciences: Nanoscience and Nanotechnology
Volume4
Pages (from-to)023002
Number of pages8
ISSN2043-6254
DOIs
Publication statusPublished - 2013
Event6th International Workshop on Advanced Materials Science and Nanotechnology - Bai Chay, Ha Long City, Viet Nam
Duration: 30 Oct 20122 Nov 2012
Conference number: 6
http://iwamsn2012.ac.vn/

Workshop

Workshop6th International Workshop on Advanced Materials Science and Nanotechnology
Number6
LocationBai Chay
CountryViet Nam
CityHa Long City
Period30/10/201202/11/2012
Internet address

Keywords

  • Figure of merit
  • Layered cobalt oxide
  • Zinc oxide
  • High temperature
  • Thermoelectric generator

Fingerprint Dive into the research topics of 'Nanostructured oxide materials and modules for high temperature power generation from waste heat'. Together they form a unique fingerprint.

Cite this