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Updated: Nov 12, 2025

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
Published on: April 10, 2018
A mechanistic first-principles study on N2 reduction reaction catalyzed by Ni4 supported defective graphene
N Saeidi1, M D Esrafili2, J J Sardroodi1
1Department of Chemistry, Azarbaijan Shahid Madani University, Tabriz, Iran.
Abstract:
The electrochemical reduction of N2 is an important industrial process, which offers an alternative route to the Haber-Bosch procedure for NH3 production. Here, by the method of first-principles calculations, we introduce Ni4 supported defective graphene (Ni4-Gr) as an efficient substrate to convert N2 into NH3. The enzymatic, alternating and distal mechanisms are investigated for N2 reduction to explore catalytic activity of Ni4-Gr surface. By analyzing the free energy diagrams, it is obtained that Ni4-Gr exhibits high catalytic performance for N2 reduction via the enzymatic pathway with an overpotential value of 0.50 V at normal temperature.
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