Formation of Pyrogenic Silica: Spectroscopic and Quantum Chemical Insight |
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| Authors: | Volodymyr D Khavryuchenko Oleksiy V Khavryuchenko Vladyslav V Lisnyak |
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| Institution: | 1. Institute for Sorption and Problems of Endoecology , National Academy of Sciences of Ukraine , Kyiv , Ukraine;2. Chemistry Department , Kyiv Taras Shevchenko National University , Kyiv , Ukraine |
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| Abstract: | This article describes the genesis of amorphous silica under high-heat conditions from SiO2 molecules through protoparticles, primary particles, and aggregates to agglomerates using vibrational spectra and quantum chemical simulations data. The impact of small molecules (water, HCl, CO2) is also discussed. The article also explains the nature of the pyrogenic silica amorphism. |
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| Keywords: | fumed silica silica fume CVD silica vibrational spectroscopy quantum chemical simulations amorphism |
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