Electrochemical synthesis of ammonia from N₂ and H₂O using a typical non-noble metal carbon-based catalyst under ambient conditions

Abstract

Ammonia is an important precursor of fertilizers and nitrogen compounds, and it is also a potential energy storage medium and alternative fuel for vehicles.

Multitasking FeOCN Composite as an Economic, Heterogeneous Catalyst for 1‐Octene Hydroformylation and Hydration Reactions

“…In the present case, the existence of other phases i. e. the cementite and the ferric‐oxy‐hydroxide may contribute to further enhancing the multitasking catalytic abilities of the material. Literature further supports that the cementite is an active catalyst for hydrogen evolution reaction (HER), Oxygen reduction reaction (ORR) and Nitrogen reduction reaction (NRR) . Moreover, the presence of cementite in the mixed phase with Fe 2 O 3 improves the catalytic activity for Fischer‐Tropsch synthesis .…”

“…Literature further supports that the cementite is an active catalyst for hydrogen evolution reaction (HER), Oxygen reduction reaction (ORR) and Nitrogen reduction reaction (NRR). [56][57][58] Moreover, the presence of cementite in the mixed phase with Fe 2 O 3 improves the catalytic activity for Fischer-Tropsch synthesis. [59] Another important phase, the ferric-oxy-hydroxide was also found to be active for various catalytic applications, particularly for the OER, Fenton-type reactions and the reduction of NO 2 .…”

Recent Advances in the Application of Structural‐Phase Engineering Strategies in Electrochemical Nitrogen Reduction Reaction

“…Therefore, there may be a proportional relationship between the NH 3 yield and the content of pyridinic N. [70] This means that the presence of metal-nitrogen-carbon (M-N-C) at the metal/carbon interface is critical to NRR. Cong et al [71] considered that in the interface region, the metal (compound) and the carbon material have a synergistic effect on the N 2 reduction reaction. On the N-doped nanocarbon/Fe 3 C nanoparticle (NCF) catalyst, one possible mechanism of N 2 electroreduction may be as follows: on the surface of NCF, N 2 is first adsorbed by carbon or pyridinic nitrogen in NCF, and activated by nearby Fe 3 C nanoclusters.…”

“…Cong et al. [ 71 ] considered that in the interface region, the metal (compound) and the carbon material have a synergistic effect on the N 2 reduction reaction. On the N‐doped nanocarbon/Fe 3 C nanoparticle (NCF) catalyst, one possible mechanism of N 2 electroreduction may be as follows: on the surface of NCF, N 2 is first adsorbed by carbon or pyridinic nitrogen in NCF, and activated by nearby Fe 3 C nanoclusters.…”

“…−1 and the FE was 2.72% at −0.4 V versus RHE in 0.1 m KOH electrolyte. [ 71 ] Another experimental finding is that N 2 adsorption occurs more readily on MoS 2 –rGO than on separate MoS 2 nanosheets; this is caused by the enhanced electron transfer due to the presence of rGO. The NH 3 yield of MoS 2 –rGO is 24.82 µg h −1 mg cat.…”