[11p-W323-1~15] 8.5 Plasma phenomena, emerging area of plasmas and their new applications

△ [11p-W323-7] Ammonia production through P/L reaction with VUV/UV irradiation

〇Tatsuya Sakakura¹, Naoya Murakami¹, Yoshiyuki Takatsuji¹, Tetsuya Haruyama¹ (1.Kyutech)

Keywords:ammonia, P/L reaction, radical

We have studied and developed the plasma/liquid interface reaction (P/L reaction) that can produce ammonia from the air (nitrogen source) and the water (hydrogen source) at ambient temperature and pressure, without any catalysts. It is important to form a gas phase which can react easily with water. The activated nitrogen produced by plasma is involved in the production amount of ammonia. In this study, the P/L reaction has been enhanced Ultraviolet (UV) irradiation of water phase surface. Nitrogen plasma/water interface reaction locus can produce ammonia. Vacuum Ultraviolet (VUV) irradiated interface reaction locus increased ammonia production. In a spin trap electron spin resonance (st-ESR) experiment, atomic H (H·) has been produced a lot by UV irradiation, especially by VUV irradiation. The derived H· effectively enhanced the P/L reaction rate.