Synthesis of ammonia in a strong electric field discharge at ambient pressure

Citation
Md. Bai et al., Synthesis of ammonia in a strong electric field discharge at ambient pressure, PLASMA CHEM, 20(4), 2000, pp. 511-520
Citations number
16
Categorie Soggetti
Physical Chemistry/Chemical Physics","Chemical Engineering
Journal title
PLASMA CHEMISTRY AND PLASMA PROCESSING
ISSN journal
02724324 → ACNP
Volume
20
Issue
4
Year of publication
2000
Pages
511 - 520
Database
ISI
SICI code
0272-4324(200012)20:4<511:SOAIAS>2.0.ZU;2-V
Abstract
The plasma synthesis of ammonia has been studied in a nitrogen-hydrogen pla sma using a strong electric field discharge at ambient pressure and tempera ture. With this method, N-2 and H-2 molecules ave ionized and dissociated a nd a large number of pec atoms, ions, and radicals are formed in a nonequil ibrium plasma after inelastic collisions. The final product was mainly ammo nia. including a small amount of hydrazine. When MgO powder, used as a cata lyst, was smeared on the surface of the electrode plates, the yields of amm onia increased about 1.54-1.75 times and reached 5000 ppm (0.5%; v/v). In t his way: plasma synthesis of ammonia at ambient pressure is realized and a new method is provided for inorganic synthesis, which consumes little energ y and simplifies the process.