Electro-thermochemical Li cycling for NH3 synthesis from N2 and H2O

An electro-thermochemical cycling system for producing ammonia, comprising:

• a) a reaction chamber comprising a metal compound input port, wherein a metal compound is input to said reaction chamber through said metal compound input port;
• b) an anode and a cathode comprising an ON electrical state and an OFF electrical state, wherein said anode is in contact with said metal compound for oxidation of anions;
• c) a reactive metal formed on said cathode when said anode and said cathode are in said ON electrical state, wherein said cathode is in contact with said metal compound to reduce metal ions of said metal compound to form said reactive metal on said cathode, wherein said anode and said cathode are separated by a porous diffusion barrier disposed in said reaction chamber, wherein said porous diffusion barrier separates anodic products from said cathode and said reactive metal;
• d) a voltage source, wherein said voltage source connects said cathode to said anode to establish said electrical ON state and said electrical OFF state;
• e) a nitrogen port to said reaction chamber containing said electrolyzed reactive metal, wherein nitrogen from said nitrogen port combines with said electrolyzed reactive metal to form a metal-nitrogen compound proximal to said nitrogen input;
• f) an atomic hydrogen port to said reaction chamber containing said metal-nitrogen compound, wherein atomic hydrogen from said atomic hydrogen port combines with said metal-nitrogen compound to form ammonia;
• and
• g) an ammonia output port from said reaction chamber containing said ammonia, wherein said metal compound input port is configured to input said metal compound to said reaction chamber according to a depletion rate of said metal compound in said reaction chamber.