Cathodic Contact Glow Discharge Electrolysis for the Degradation of Liquid Ammonia Solutions

被引：26

作者：

Allagui, Anis ^{[1
]}

Brazeau, Nicolas ^{[2
]}

Alawadhi, Hussain ^{[3
]}

Al-momani, Fares ^{[2
]}

Baranova, Elena A. ^{[2
]}

机构：

[1] Univ Sharjah, Sustainable & Renewable Energy Engn, Sharjah 27272, U Arab Emirates

[2] Univ Ottawa, Dept Chem & Biol Engn, Ottawa, ON K1N 6N5, Canada

[3] Univ Sharjah, Dept Appl Phys, Sharjah 27272, U Arab Emirates

来源：

PLASMA PROCESSES AND POLYMERS | 2015年 / 12卷 / 01期

基金：

芬兰科学院;

关键词：

ammonia; DC discharges; glow discharge; optical emission spectroscopy; STREAMER CORONA DISCHARGE; WATER-VAPOR; PLASMA; NANOPARTICLES; REDUCTION; REMOVAL;

D O I：

10.1002/ppap.201400049

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The application of 50 VDC cathodic contact glow discharge electrolysis for six hours in 1.0 mol/L KOH + 0.8, 0.4 and 0.08 g/L ammonia results in the removal of 66, 71 and 77% of ammonia, respectively, following pseudo first-order kinetics at ca. 0.3 mol/kWh. The yields of dissolved NO2-N and NO3-N lie between 9 and 29% and are coupled with ammonia removal suggesting a nitrification process. Based on the near-cathode UV-Vis emissions and ionization products of H2O and NH3 molecules, a mechanism is proposed along with the charge/energy transfer reactions between the plasma-generated free radicals and ionic species. Joule heating and vaporization are also believed to physically remove ammonia.

引用

页码：25 / 31

页数：7

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