Nitrogen Fixation

The article contains sections titled: 1. Introduction 2. Biological nitrogen fixation 2.1. Nitrogenases 2.1.1. Mo-Nitrogenase 2.1.2. Fe Protein Cycle 2.1.3. MoFe Protein Cycle 3. Chemical Nitrogen Fixation 3.1. Industrial Processes for Nitrogen Fixation 3.1.1. Plasma Assisted Nitrogen Fixation: Birkeland–Eyde Arc Process 3.1.2. Frank and Caro Cyanamide Process 3.1.3. Haber–Bosch Process (HBP): A Century of Heterogeneous Ammonia Catalysis 3.2. Lab-Scale Efforts for Chemical Nitrogen Fixation 3.2.1. Electrocatalytic Nitrogen Fixation 3.2.2. Photocatalytic Nitrogen Fixation 3.2.3. Homogeneous Catalytic Nitrogen Reduction to Ammonia 3.2.4. Nonthermal Plasma (NTP) Assisted Nitrogen Fixation