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Electro-synthesis of ammonia from nitrogen at ambient temperature and pressure in ionic liquids

机译：在环境温度和压力下在离子液体中由氮气电合成氨

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Ammonia as the source of most fertilizers has become one of the most important chemicals globally. It also is being increasingly considered as an easily transported carrier of hydrogen energy that can be generated from "stranded'' renewable-energy resources. However, the traditional Haber-Bosch process for the production of ammonia from atmospheric nitrogen and fossil fuels is a high temperature and pressure process that is energy intensive, currently producing more than 1.6% of global CO2 emissions. An ambient temperature, electrochemical synthesis of ammonia is an attractive alternative approach, but has, to date, not been achieved at high efficiency. We report in this work the use of ionic liquids that have high N-2 solubility as electrolytes to achieve high conversion efficiency of 60% for N-2 electro-reduction to ammonia on a nanostructured iron catalyst under ambient conditions.
机译：氨作为大多数肥料的来源已成为全球最重要的化学物质之一。它也越来越被认为是氢能的易于运输的载体，可以从“搁浅”的可再生能源中产生氢能，但是，传统的哈伯-博世（Haber-Bosch）工艺从大气氮和化石燃料生产氨的方法温度和压力过程耗费大量能源，目前产生的二氧化碳排放量占全球CO2排放量的1.6％以上。在环境温度下，氨的电化学合成是一种有吸引力的替代方法，但迄今为止尚未实现高效率。这项工作使用具有高N-2溶解度的离子液体作为电解质，以在环境条件下将纳米结构的铁催化剂上的N-2电还原为氨时实现60％的高转化效率。

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