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
收藏
页码：25 / 31
页数：7
相关论文
共 47 条
[1]   Charge transfer processes at the interface between plasmas and liquids [J].
Akolkar, Rohan ;
Sankaran, R. Mohan .
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A, 2013, 31 (05)
[2]   Electrochemical behavior of ammonia on Ni98Pd2 nano-structured catalyst [J].
Allagui, Anis ;
Sarfraz, Saad ;
Ntais, Spyridon ;
Al Momani, Fares ;
Baranova, Elena A. .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2014, 39 (01) :41-48
[3]   NiXPd1-x (x=0.98, 0.93, and 0.58) nanostructured catalysts for ammonia electrooxidation in alkaline media [J].
Allagui, Anis ;
Sarfraz, Saad ;
Baranova, Elena A. .
ELECTROCHIMICA ACTA, 2013, 110 :253-259
[4]   Synthesis of Ni and Pt nanomaterials by cathodic contact glow discharge electrolysis in acidic and alkaline media [J].
Allagui, Anis ;
Baranova, Elena A. ;
Wuethrich, Rolf .
ELECTROCHIMICA ACTA, 2013, 93 :137-142
[5]   Ammonia electro-oxidation on alloyed PtIr nanoparticles of well-defined size [J].
Allagui, Anis ;
Oudah, Mohamed ;
Tuaev, Xenia ;
Ntais, Spyridon ;
Almomani, Fares ;
Baranova, Elena A. .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2013, 38 (05) :2455-2463
[6]   The electrochemical discharges for the synthesis of nickel oxide nanoparticles: Characterization and mechanism [J].
Allagui, Anis ;
Wuethrich, Rolf .
ELECTROCHIMICA ACTA, 2011, 58 :12-18
[7]   Gas film formation time and gas film life time during electrochemical discharge phenomenon [J].
Allagui, Anis ;
Wuethrich, Rolf .
ELECTROCHIMICA ACTA, 2009, 54 (23) :5336-5343
[8]  
[Anonymous], 2005, CRC Handbook of Chemistry and Physics
[9]   The positive ray analysis of water vapor ionized by impact of slow electrons [J].
Barton, HA ;
Bartlett, JH .
PHYSICAL REVIEW, 1928, 31 (05) :0822-0826
[10]   Chemical reactivity of discharges and temporal post-discharges in plasma treatment of aqueous media:: Examples of gliding discharge treated solutions [J].
Brisset, Jean-Louis ;
Moussa, David ;
Doubla, Avaly ;
Hnatiuc, Eugen ;
Hnatiuc, Bogdan ;
Youbi, Georges Kamgang ;
Herry, Jean-Marie ;
Naitali, Murielle ;
Bellon-Fontaine, Marie-Noelle .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2008, 47 (16) :5761-5781
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