Skip to main content
Ir a la página de inicio de la Comisión Europea (se abrirá en una nueva ventana)
español es
CORDIS - Resultados de investigaciones de la UE
CORDIS

Combining catalysts design and reactor engineering to enhance the electrochemical synthesis of ammonia

Objetivo

In 2020, the total global production of ammonia is up to 144 million metric tons via the Haber-Bosch process that is energy-intensive in that it requires a substantial driving force (e.g. 500 oC and 200 atm) to break the highly inert N-N triple bond, which consumes 1-2% of the worlds annual energy output and generates over 1% of global carbon dioxide emissions. The electrochemical nitrogen (N2) reduction reaction (NRR) has attracted much attention to circumvent the carbon-intensive Haber-Bosch process because of the decreasing renewable electricity prices. In contrast to the Haber-Bosch process that produces ammonia in large and centralized factories, the electrocatalytic route can achieve on-site ammonia synthesis in small-scale devices with the expectation to reduce the price of fertilizer and realize a neutral carbon footprint. However, electrochemical ammonia synthesis suffers from extremely low partial current density and Faradaic efficiency towards ammonia in aqueous conditions due to the competition of the hydrogen evolution reaction (HER). There are two challenges to NRR in aqueous conditions: (1) the HER competitive reaction is much faster than NRR in kinetics and the activation of N2 is therefore difficult, (2) low solubility of N2 in aqueous electrolytes. To overcome the challenges mentioned above, in this project, I aim to combine electrocatalysts design (i.e. suppress the HER and activate N2) and electrochemical reactor engineering (i.e. overcome the mass transport limits of N2) to improve the ammonia yield rates and current efficiency. Theory-guided preparation of singe-atom catalysts and diluted surface alloy will be performed in flow-cell/MEA electrolyzers (i.e. designed three different setups) to obtain a clear structure-activity relationship with the assistance of in-situ spectroscopy and theoretical calculations. The obtained structure-activity relationship could guide the rational development of high-performance catalysts for efficient NRR.

Ámbito científico (EuroSciVoc)

Palabras clave

Programa(s)

Tema(s)

Régimen de financiación

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

Ver todos los proyectos financiados en el marco de este régimen de financiación

Convocatoria de propuestas

(se abrirá en una nueva ventana) HORIZON-MSCA-2021-PF-01

Ver todos los proyectos financiados en el marco de esta convocatoria

Coordinador

DANMARKS TEKNISKE UNIVERSITET
Aportación neta de la UEn
€ 230 774,40
Dirección
ANKER ENGELUNDS VEJ 101
2800 Kongens Lyngby
Dinamarca
Región
Danmark Hovedstaden Københavns omegn
Tipo de actividad
Higher or Secondary Education Establishments
Enlaces
Coste total
Sin datos