CE05 - Une énergie durable, propre, sûre et efficace

ECO-friendly alkaline-earth silicides for THERMoelectric applications – ECOTHERM

Submission summary

Looking for new green energy sources is one of the most fundamental issues to sustain economic growth and reduce greenhouse gas emissions. Since the Kyoto protocol, the signatory countries have made strong efforts and renewable energy now represents a significant and rapidly growing share of total energy supply (19.3% in 2017). Among them, thermoelectricity appears as a possible alternative by recovering wasted energy and particularly wasted heat. Thermoelectric materials are well known for many decades but their widespread use in the industrial landscape is limited by their low power/cost-weight ratio and also because most of the used materials contain lead or very toxic tellurium. Therefore, the challenge of ECOTHERM is to develop new thermoelectric materials using cleaner resources with improved performances.

ECOTHERM aims to study and develop new alkaline earth silicides for thermoelectric applications. The project focuses more particularly on an alkaline earth silicide that has been poorly studied in the literature and has a high potential for optimization. An approach combining the study of the solubility and stability domains of ternary and quaternary systems as well as the use of non-equilibrium metallurgical processes will aim to optimize the charge carrier concentration and to reduce the thermal conductivity. The design of such alloys with non-equilibrium technics could provide thermoelectric materials with unprecedented properties.

Project coordination

Mickaël Beaudhuin (Institut de chimie moléculaire et des matériaux - Institut Charles Gerhardt Montpellier)

The author of this summary is the project coordinator, who is responsible for the content of this summary. The ANR declines any responsibility as for its contents.

Partner

ICGM Institut de chimie moléculaire et des matériaux - Institut Charles Gerhardt Montpellier

Help of the ANR 240,390 euros
Beginning and duration of the scientific project: January 2020 - 48 Months

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