Studies of ammonia synthesis in a strong ionization discharge at ambient pressure

The plasma synthesis of ammonia has been studied in nitrogen-hydrogen plasma using a strong ionization discharge at ambient pressure. With the new technology of dielectric barrier, the reduced field reaches 300 Td in the narrow discharge gap, and the electrons gain the average energy of 8 eV. At the same time, N/sub 2/ and H/sub 2/, molecules are ionized and dissociated and a large number of free atoms, ions and radicals are in nonequilibrium plasma after inelastic collisions. The final product was mainly ammonia including a small amount of hydrazine, and the yields of ammonia reaches 12500 ppm (1.25%). In this way, plasma synthesis of ammonia at ambient pressure is realized and a new method is provided for inorganic synthesis, which consumes little energy and simplifies the process.