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首页> 外文期刊>The Korean journal of chemical engineering >Electrochemical synthesis of ammonia from water and nitrogen catalyzed by nano-Fe2O3 and CoFe2O4 suspended in a molten LiCl-KCl-CsCl electrolyte
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Electrochemical synthesis of ammonia from water and nitrogen catalyzed by nano-Fe2O3 and CoFe2O4 suspended in a molten LiCl-KCl-CsCl electrolyte

机译：悬浮在熔融LiCl-KCl-CsCl电解质中的纳米Fe2O3和CoFe2O4催化从水和氮中电化学合成氨

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摘要

Nano-Fe2O3 and CoFe2O4 were suspended in molten salt of alkali-metal chloride (LiCl-KCl-CsCl) and their catalytic activity in electrochemical ammonia synthesis was evaluated from potentiostatic electrolysis at 600 K. The presence of nanoparticle suspension in the molten chloride resulted in improved production of NH3, recording NH3 synthesis rate of 1.78x10(-10) mol s(-)1 cm(-2) and 3.00x10(-10) mol s(-1) cm(-2) with CoFe2O4 and Fe2O3, which are 102% and 240% higher than that without the use of a nanocatalyst, respectively. We speculated that the nanoparticles triggered both the electrochemical reduction of nitrogen and also chemical reaction between nitrogen and hydrogen that was produced from water electro-reduction on cathode. The use of nanocatalysts in the form of suspension offers an effective way to overcome the sluggish nature of nitrogen reduction in the molten chloride electrolyte.
机译：将纳米Fe2O3和CoFe2O4悬浮在碱金属氯化物的熔融盐（LiCl-KCl-CsCl）中，并通过在600 K下进行恒电位电解来评估它们在电化学氨合成中的催化活性。改进了NH3的生产，用CoFe2O4和Fe2O3记录的NH3合成速率为1.78x10（-10）mol s（-）1 cm（-2）和3.00x10（-10）mol s（-1）cm（-2），与不使用纳米催化剂的情况相比，它们分别高出102％和240％。我们推测，纳米颗粒不仅触发了氮的电化学还原，还触发了阴极上水的电还原反应所产生的氮与氢之间的化学反应。悬浮液形式的纳米催化剂的使用提供了一种有效的方法来克服熔融氯化物电解质中氮还原的缓慢特性。

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  • 来源
    《The Korean journal of chemical engineering》 |2016年第6期|1777-1780|共4页
  • 作者

    Kim Kwiyong; Yoo Chung-Yul; Kim Jong-Nam; Yoon Hyung Chul; Han Jong-In;

  • 作者单位

    Korea Adv Inst Sci & Technol, Dept Civil & Environm Engn, 373-1 Guseong Dong, Daejeon 34141, South Korea;

    Korea Inst Energy Res, Adv Mat & Devices Lab, Daejeon 34129, South Korea;

    Korea Inst Energy Res, Petr & Gas Lab, Daejeon 34129, South Korea;

    Korea Inst Energy Res, Petr & Gas Lab, Daejeon 34129, South Korea;

    Korea Adv Inst Sci & Technol, Dept Civil & Environm Engn, 373-1 Guseong Dong, Daejeon 34141, South Korea;

  • 收录信息 美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Ammonia; Electrochemical Reduction; Molten Salt; Nano-catalysts;

    机译：氨;电化学还原;熔盐;纳米催化剂;

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