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3D printing electrodes for electrochemical nitrate to ammonia conversion: Towards a scalable preparation of cathodes for nitrate reduction electrolyzers

Project description

Sustainable electrochemical nitrate-to-ammonia conversion harnesses 3D printing

The Haber-Bosch process that converts hydrogen and nitrogen to ammonia is the main way fertiliser has been produced for more than a century. Its impact on farming, food production and population growth cannot be underestimated – but it consumes a tremendous amount of energy and contributes to high groundwater nitrate levels due to runoff from the fertilised land. Electrochemical nitrate-to-ammonia conversion can simultaneously reduce nitrate pollution and ammonia-related emissions. A lack of efficient catalysts has impeded progress. With the support of the Marie Sklodowska-Curie Actions programme, the RedNitro3D project will develop improved electrocatalysts and 3D printing technology to produce the cathodes and the electrolyser, paving the way to widespread use and a circular economy.

Objective

Ammonia is a fundamental molecule to produce fertilizers. It is one of the largest human-synthesized chemicals. Most of the ammonia is produced by the well-known Haber-Bosch (H-B) process, that is an energy-intensive industrial process, consuming around 1 to 2% of the worldwide energy output, and is responsible for large emission of greenhouse gases in the form of CO2. Therefore, alternative ways of producing ammonia with less environmental impact are urgently needed. Another very serious environmental problem is the nitrate contamination of water and soil, with dire consequences for aquatic ecosystems and human health. Reducing nitrate levels in groundwaters is paramount and is in line with the strategy of the European commission to preserve the balance of the ecosystem. To address these problems, electrochemical nitrate to ammonia conversion emerges as an ideal alternative, since nitrate pollution can be effectively reduced in waters, at the time that ammonia is produced on a decentralized scale. In this sense, RedNitro3D takes a step forward in solving these problems, by providing a viable strategy to reduce nitrate pollution, and at the same time take advantage of this process to obtain ammonia as a value-added product, generating profit, and enhancing the sustainability of the process. Thus, combining the electrochemical nitrate to ammonia conversion with the advances in 3D printing technology, a scalable method to prepare cathodes for electrolyzers for nitrate to ammonia conversion is proposed in RedNitro3D. The project will be implemented by following three main objectives: i) benchmarking state-of-the-art electrocatalysts, ii) integrating those electrocatalyst in a printable FDM filament to produce 3D printed cathodes, and iii) the design and implementation of a 3D printed electrolyzer containing the electrodes prepared previously. This project persues to achieve the revalorization of waste, and paves the way towards a circular economy.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Call for proposal

(opens in new window) HORIZON-MSCA-2021-PF-01

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Coordinator

VYSOKE UCENI TECHNICKE V BRNE
Net EU contribution
€ 166 278,72
Address
ANTONINSKA 548/1
602 00 BRNO STRED
Czechia
Region
Česko Jihovýchod Jihomoravský kraj
Activity type
Higher or Secondary Education Establishments
Links
Total cost
No data