NH3 is an essential molecule as a nitrogen source for prebiotic amino acid syntheses such as the Strecker reaction. Previous shock experiments demonstrated that meteorite impacts on ancient oceans would have provided a considerable amount of NH3 from atmospheric N2 and oceanic H2O through reduction by meteoritic iron. However, specific production mechanisms remain unclear, and impact velocities...

Photocatalytic nitrogen fixation from air directly under sunlight can contribute significantly to carbon neutralization. It is an ideal pathway replace the industrial Haber Bosch process in future. A Fe-doped layered WO$_3$ photocatalyst containing oxygen vacancies was developed which fix at atmospheric pressure. The iron doping enhances transport efficiency of photogenerated electrons. photoca...

The electrochemical nitrogen reduction reaction (NRR) using clean energy is considered a promising alternative to the conventional Haber–Bosch process; however, developing highly active electrocatalyst still great challenge. In this study, ten metal dimers anchored in defective boron nitride (BN) monolayer as double-atom catalysts (DACs) with reverse sandwich structures were screened for their ...

Ammonia (NH3) is regarded as a renewable energy source well an important molecule for agricultural applications. The energy-intensive Haber-Bosch method produces large amounts of CO2 gas during ammonia production. As alternative, there has recently been much interest in the electrocatalytic production NH3 via electrochemical nitrogen reduction reaction (ENRR) process utilizing under ambient con...

Photocatalytic nitrogen fixation under ambient conditions is currently widely explored in an attempt to develop a sustainable alternative for the Haber–Bosch process. In this work, defect-rich carbon nitride, one of most investigated photocatalysts reported literature ammonia generation, combined with earth-abundant and bioinspired FeS2 improve activity production. By combination, enhancement ?...

Abstract Renewable energy is a key solution in maintaining global warming below 2 °C. However, its intermittency necessitates the need for conversion technologies to meet demand when there are insufficient renewable resources. This study aims tackle these challenges by thermo-electrochemical modelling and simulation of reversible solid oxide fuel cell (RSOFC) integration with Haber Bosch proces...

Though N2 cleavage on K-promoted Fe surfaces is important in the large-scale Haber-Bosch process, there is still ambiguity about the number of Fe atoms involved during the N-N cleaving step and the interactions responsible for the promoting ability of K. This work explores a molecular Fe system for N2 reduction, particularly focusing on the differences in the results obtained using different al...

Alkali metal cations can interact with Fe-N2 complexes, potentially enhancing back-bonding or influencing the geometry of the iron atom. These influences are relevant to large-scale N2 reduction by iron, such as in the FeMoco of nitrogenase and the alkali-promoted Haber-Bosch process. However, to our knowledge there have been no systematic studies of a large range of alkali metals regarding the...