Nanostructured Titanate Thermoelectrics for Energy Applications

Lead Research Organisation: University of Manchester
Department Name: Materials

Abstract

Thermoelectrics are of growing interest to generate power from waste heat in automotive, industrial, medical and domestic environments. Traditional thermoelectrics are based on elements which are heavy, in short supply and not environmentally friendly. Oxide thermoelectrics have the potential to overcome all these limitations and find use in both established and novel application areas. Titanates, including perovskites based on SrTiO3, show considerable potential. The project will focus on nanostructuring of titanate oxide ceramics to reduce thermal conductivity and doping to increase electrical conductivity, in order to enhance thermoelectric performance. Particular attention will be paid to the role of interfaces. The work will involve preparation of high quality ceramics in order to understanding the relationships between composition, microstructure and thermoelectric properties.

Publications

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Studentship Projects

Project Reference Relationship Related To Start End Student Name
EP/N509565/1 01/10/2016 30/09/2021
1745593 Studentship EP/N509565/1 21/09/2016 31/03/2020 George Miller
 
Description New methods of developing Magneli phase titanium dioxide materials.
Exploitation Route By taking these fabrication methods and using them to develop new, single-phase TinO2n-1 thermoelectrics.
Sectors Electronics,Energy,Environment,Manufacturing, including Industrial Biotechology

 
Description Collaboration with Queen Mary University of SPS Processing 
Organisation Queen Mary University of London
Country United Kingdom 
Sector Academic/University 
PI Contribution I processed the powders and analysed the samples produced.
Collaborator Contribution Queen Mary processed the powders for me, providing their expertise on optimal sintering temperature and times
Impact Research to be used in thesis
Start Year 2018
 
Description Plasma Spraying of Non-Stoichiometric TiO2 Powders for Thick-Film Thermoelectric Applications 
Organisation Rolls Royce Group Plc
Country United Kingdom 
Sector Private 
PI Contribution I have bought the materials (powders and substrates) and will be analysing the resulting samples.
Collaborator Contribution Rolls-Royce will be plasma spraying the powders onto the substrates.
Impact No outcomes as of yet
Start Year 2019