History of changes to: GraphTED - graphene nanocomposite materials for thermoelectric devices
Date Action Change(s) User
Nov. 27, 2023, 2:12 p.m. Added 35 {"external_links": []}
Nov. 20, 2023, 2:02 p.m. Added 35 {"external_links": []}
Nov. 13, 2023, 1:33 p.m. Added 35 {"external_links": []}
Nov. 6, 2023, 1:31 p.m. Added 35 {"external_links": []}
Aug. 14, 2023, 1:30 p.m. Added 35 {"external_links": []}
Aug. 7, 2023, 1:31 p.m. Added 35 {"external_links": []}
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Jan. 28, 2023, 11:08 a.m. Created 43 [{"model": "core.projectfund", "pk": 26104, "fields": {"project": 3293, "organisation": 2, "amount": 99466, "start_date": "2015-03-31", "end_date": "2016-03-30", "raw_data": 42451}}]
Jan. 28, 2023, 10:52 a.m. Added 35 {"external_links": []}
April 11, 2022, 3:46 a.m. Created 43 [{"model": "core.projectfund", "pk": 18208, "fields": {"project": 3293, "organisation": 2, "amount": 99466, "start_date": "2015-03-31", "end_date": "2016-03-30", "raw_data": 18507}}]
April 11, 2022, 3:46 a.m. Created 41 [{"model": "core.projectorganisation", "pk": 69536, "fields": {"project": 3293, "organisation": 1420, "role": "COLLAB_ORG"}}]
April 11, 2022, 3:46 a.m. Created 41 [{"model": "core.projectorganisation", "pk": 69535, "fields": {"project": 3293, "organisation": 2207, "role": "LEAD_ORG"}}]
April 11, 2022, 3:46 a.m. Created 40 [{"model": "core.projectperson", "pk": 42942, "fields": {"project": 3293, "person": 5232, "role": "COI_PER"}}]
April 11, 2022, 3:46 a.m. Created 40 [{"model": "core.projectperson", "pk": 42941, "fields": {"project": 3293, "person": 1566, "role": "PI_PER"}}]
April 11, 2022, 1:47 a.m. Updated 35 {"title": ["", "GraphTED - graphene nanocomposite materials for thermoelectric devices"], "description": ["", "\nThe Seebeck effect is a thermoelectric effect whereby a temperature gradient across a material is converted to a voltage,\nwhich can be exploited for power generation. The growing concern over fossil fuels and carbon emissions has led to\ndetailed reviews of all aspects of energy generation and routes to reduce consumption. Thermoelectric (TE) technology,\nutilising the direct conversion of waste heat into electric power, has emerged as a serious contender, particular for\nautomotive and engine related applications. Thermoelectric power modules employ multiple pairs of n-type and p-type TE\nmaterials. Traditional metallic TE materials (such as Bi2Te3 and PbTe), available for 50 years, are not well suited to high\ntemperature applications since they are prone to vaporization, surface oxidation, and decomposition. In addition many are\ntoxic. Si-Ge alloys are also well established, with good TE performance at temperatures up to 1200K but the cost per watt\ncan be up to 10x that of conventional materials. In the last decade oxide thermoelectrics have emerged as promising TE\ncandidates, particularly perovskites (n-type) and layered cobaltites (e.g. p-type Ca3Co4O9) because of their flexible\nstructure, high temperature stability and encouraging ZT values, but they are not yet commercially viable. Thus this\ninvestigation is concerned with improving the thermoelectric properties of oxide thermoelectrics, specifically Strontium\nTitanate (n-type) and Bismuth Strontium Cobaltite (p-type).\nThe conversion efficiency of thermoelectric materials is characterised by the figure of merit ZT (where T is temperature); ZT\nshould be as high as possible. To maximise the Z value requires a high Seebeck coefficient (S), coupled with small thermal\nconductivity and high electrical conductivity. In principle electrical conductivity can be adjusted by changes in cation/anion\ncomposition. The greater challenge is to concurrently reduce thermal conductivity. However in oxide ceramics the lattice\nconductivity dominates thermal transport since phonons are the main carriers of heat. This affords the basis for a range of\nstrategies for reducing heat conduction; essentially microstructural engineering to increase phonon scattering. By\nintroducing small pieces of graphene into the oxide it is possible to produce composites which have reduced thermal\nconductivity and increased electrical conductivity. In this way the ZT characteristics of both Strontium Titanate (n-type) and\nBismuth Strontium Cobaltite (p-type) can be enhanced. We will prepare composites of the two oxides, determine their\nstructures, their phase content and thermoelectric properties. After validation we will construct thermoelectric modules\nusing the p-type and n-type composites which will be evaluated in commercially-relevant test environments.\n\n"], "extra_text": ["", "\n\nPotential Impact:\nThe work will provide a foundation for the development and exploitation of high performance thermoelectric oxide-graphene\ncomposites to generate energy via waste heat. The beneficiaries in the commercial sector are threefold: (i) ceramic\nmanufacturers who will have new products, (ii) producers of energy management devices who will be able to develop new products for new low and high temperature markets, and (iii) users of thermoelectric modules, such as motor\nmanufacturers, generating energy from waste heat. Policy makes will benefit from the research by knowledge of\ndevelopments of environmentally friendly methods of energy generation and a way to help reduce the use of fossil fuels.\nThere will be opportunities for museums with exhibits highlighting the principles of thermoelectric power generation and\napplications from automobiles to domestic environments. To the wider public there will be environmental benefits of utilising\noxides in place toxic metal thermoelectrics and from the generation of energy from waste heat, leading to improved fuel\nconsumption for automobiles and economic benefit to individuals and the UK.\nThe research has the potential to impact the wealth and the economic competitiveness of the UK by the development of\nenhanced thermoelectric materials and power modules. For UK companies there will be new opportunities and new\nmarkets in the production of ceramics, the development of energy management systems, and exploitation of energy\ngeneration systems. All companies in the supply chain should become more competitive. With generation of power from\nwaste heat in the automobile and other sectors there will be improved fuel consumption and the potential for reduction of\nimported oil to the UK, giving additional economic benefits. New thermoelectric power modules should be realised within 2-\n5 years, bringing benefits to companies in the supply chain within 3-7 years. The wider benefits of effective power\ngeneration and potential reduction of oil consumption should come within 5-10 years.\nThe researchers working on the project will gain specialist transferable skills in experimental design, materials fabrication,\nmicrostructural and functional property characterisation techniques together with skills in report writing and critical analysis\nthat will be of great value in future employment.\nNon-confidential scientific and technological findings will be disseminated to the academic and industrial communities via\npresentations at major international conferences and high impact scientific publications. With our industrial collaborator we\nwill protect and exploit IP through the University of Manchester Technology Transfer Unit.\nOur industrial collaborator ETL (specialist in Energy Management) has the necessary specialist expertise to develop test\nmodules and evaluate the new materials. The Manchester applicants (R Freer and I Kinloch) have significant experience of\ndeveloping and investigating structure-property relationships in functional materials, including thermoelectric materials.\nWith our industrial collaborators we have the necessary expertise and facilities to successfully undertake the programme of\nwork.\n\n\n"], "status": ["", "Closed"]}
April 11, 2022, 1:47 a.m. Added 35 {"external_links": [13002]}
April 11, 2022, 1:47 a.m. Created 35 [{"model": "core.project", "pk": 3293, "fields": {"owner": null, "is_locked": false, "coped_id": "7d677309-e132-48c9-a811-1f189d78148d", "title": "", "description": "", "extra_text": "", "status": "", "start": null, "end": null, "raw_data": 18489, "created": "2022-04-11T01:36:11.531Z", "modified": "2022-04-11T01:36:11.531Z", "external_links": []}}]