True Atomic-Resolution Imaging of (101̅4) Calcite in Aqueous Solution by Frequency Modulation Atomic Force Microscopy

作者: Sebastian Rode , Noriaki Oyabu , Kei Kobayashi , Hirofumi Yamada , Angelika Kühnle

DOI: 10.1021/LA803448V

关键词: Chemical physicsCarbonateDissolutionAdsorptionBiomineralizationCalciteOxygenAqueous solutionChemistryKelvin probe force microscopeAnalytical chemistry

摘要: Calcite (CaCO3) is one of the most abundant minerals on earth and plays an important role in a wide range different fields including, for example, biomineralization environmental geochemistry. Consequently, surface processes reactions such as dissolution growth well (macro)molecule adsorption are greatest interest both applied fundamental research. An in-depth understanding these requires knowledge about detailed structure its natural state which quite often liquid environment. We have studied stable cleavage plane calcite under conditions using frequency modulation atomic force microscopy. Using this technique, we achieved true atomic-resolution imaging, demonstrating high-resolution capability microscopy liquids. could reproduce contrast features reported before contact mode microscopy, originating from protruding oxygen atom carbonate gr...

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