Nitrogen K-edge X-ray adsorption near-edge structure spectroscopy of chemically adsorbed ammonia gas on clay minerals and the 15N/14N-nitrogen isotopic fractionation

DOI PDF Web Site 被引用文献1件 参考文献51件 オープンアクセス

書誌事項

公開日
2024-02-05
資源種別
journal article
権利情報
  • https://creativecommons.org/licenses/by/4.0
  • https://creativecommons.org/licenses/by/4.0
DOI
  • 10.1007/s44211-023-00503-5
公開者
Springer Science and Business Media LLC

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説明

<jats:title>Abstract</jats:title><jats:p>Ammonia (NH<jats:sub>3</jats:sub>) is a simple and essential nitrogen carrier in the universe. Its adsorption on mineral surfaces is an important step in the synthesis of nitrogenous organic molecules in extraterrestrial environments. The nitrogen isotopic ratios provide a useful tool for understanding the formation processes of N-bearing molecules. In this study, adsorption experiments were conducted using gaseous NH<jats:sub>3</jats:sub> and representative clay minerals. The strongly adsorbed NH<jats:sub>3</jats:sub> was <jats:sup>15</jats:sup>N-enriched in a state of chemical equilibrium between the adsorption and desorption on the siliceous host surface. The nitrogen K-edge X-ray adsorption near-edge structure spectroscopy study revealed that these initial ammonia gases were chemically adsorbed as ammonium ions (NH<jats:sub>4</jats:sub><jats:sup>+</jats:sup>) on clay minerals.</jats:p> <jats:p><jats:bold>Graphical abstract</jats:bold></jats:p>

収録刊行物

  • Analytical Sciences

    Analytical Sciences 40 (4), 781-789, 2024-02-05

    Springer Science and Business Media LLC

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