Synthesis of ammonia directly from air and water at ambient temperature and pressure

Rong Lan, John TS Irvine, Shanwen Tao

    Research output: Contribution to journalArticle

    210 Citations (Scopus)
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    Abstract

    The N≡N bond (225 kcal mol−1) in dinitrogen is one of the strongest bonds in chemistry therefore artificial synthesis of ammonia under mild conditions is a significant challenge. Based on current knowledge, only bacteria and some plants can synthesise ammonia from air and water at ambient temperature and pressure. Here, for the first time, we report artificial ammonia synthesis bypassing N2 separation and H2 production stages. A maximum ammonia production rate of 1.14 × 10−5 mol m−2 s−1 has been achieved when a voltage of 1.6 V was applied. Potentially this can provide an alternative route for the mass production of the basic chemical ammonia under mild conditions. Considering climate change and the depletion of fossil fuels used for synthesis of ammonia by conventional methods, this is a renewable and sustainable chemical synthesis process for future.
    Original languageEnglish
    Article number1145
    JournalScientific Reports
    Volume3
    DOIs
    Publication statusPublished - 29 Jan 2013

    Bibliographical note

    This work is licensed under a Creative Commons Attribution-NonCommercial-ShareALike 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/

    Keywords

    • Electrochemistry
    • Inorganic chemistry
    • Chemical synthesis
    • Materials chemistry

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