Two-dimensional molybdenum carbides: active electrocatalysts for the nitrogen reduction reaction

Abstract

The nitrogen reduction reaction (NRR) is a promising alternative method to the Haber-Bosch process to produce ammonia due to its mild reaction conditions. The efficiency of NRR is highly dependent...

Theoretical Insights on Au‐based Bimetallic Alloy Electrocatalysts for Nitrogen Reduction Reaction with High Selectivity and Activity

“…Besides, Zhang et al. reported that two‐dimensional molybdenum carbides, 1T‐Mo 2 C, 2H‐Mo 2 C, and MoC 2 (100) have high performance with the highest reaction Gibbs free energy of 0.52, 0.86, and 0.63 eV, respectively, on NRR [71] . It can be seen that the alloy has satisfactory catalytic performance compared with some two‐dimensional Mo‐based materials.…”

“…Zhang et al. calculated the change in bond length and found that after N 2 being adsorbed on 2H‐Mo 2 C, the N−N bond length became 1.32 Å [71] . It was illustrated that molybdenum‐containing compounds can effectively activate N 2 molecules.…”

Electrocatalytic nitrogen reduction directed through the p-band center of boron on BSAC@Mo2C

“…16 Several other Mo-based two-dimensional (2D) materials, nanoparticles and nanoclusters, single atom catalysts (SACs) and organometallic complexes have been reported as efficient catalysts for NRR. [17][18][19][20][21][22][23][24][25][26] While Mo-containing organic and inorganic complexes efficiently adsorb and form stable dinitrogen complexes, their application as electrocatalysts or electrodes are not warranted. 18 Mo clusters and SACs, on the other hand, require a conducting/semi-conducting support for further usage as electrocatalysts.…”

“…18 Mo clusters and SACs, on the other hand, require a conducting/semi-conducting support for further usage as electrocatalysts. 19,20,22,27 In this regard, Mo-based 2D materials such as MoS 2 , 24,[28][29][30][31] MXenes (Mo 2 C) [32][33][34] and MBenes (Mo 2 B 2 ) 35,36 are appealing electrocatalysts owing to their high electrical conductivity and presence of active Mo metal centres. These 2D materials not only show high hydrophilicity, stability and conductivity but are interesting from the catalytic aspect of nitrogen reduction as the Mo metal is accessible to the nitrogen molecule.…”

A Solvent‐Free Strategy to Synthesize MoS2/Mo2C‐Embedded, N, S Co‐Doped Mesoporous Carbon as Electrocatalysts for Hydrogen Evolution

“…[13,14] Among these promising candidates, Mo 2 C possesses outstanding HER property, as well as excellent electrochemical stability, which is regarded as a potential electrocatalyst towards HER due to low cost and good conductivity. [15,16] Furthermore, extensive synthetic methods have been reported, including controlling morphology and nanostructure, constructing hybrid structures, and introducing a second transition metal. [17,18] However, during these processes, solvent such as water, ethanol, and HCl solution are frequently applied in the process of preparation and posttreatment, most of which are harmful to the environment and increase the cost of final products.…”