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Persistent URL http://purl.org/net/epubs/work/54425
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Record Id 54425
Title New large volume hydrothermal reaction cell for studying chemical processes under supercritical hydrothermal conditions using time-resolved in situ neutron diffraction
Abstract The design and testing of a new large volume Inconel pressure cell for the in situ study of supercritical hydrothermal syntheses using time-resolved neutron diffraction is introduced for the first time. The commissioning of this new cell is demonstrated by the measurement of the time-of-flight neutron diffraction pattern for TiO2 (Anatase) in supercritical D2O on the POLARIS diffractometer at the United Kingdom's pulsed spallation neutron source, ISIS, Rutherford Appleton Laboratory. The sample can be studied over a wide range of temperatures (25-450°C) and pressures (1-355 bar). This novel apparatus will now enable us to study the kinetics and mechanisms of chemical syntheses under extreme environments such as supercritical water, and in particular to study the crystallization of a variety of technologically important inorganic materials.
Keywords titanium compounds , materials , chemical reactions , chemistry , deuterium compounds , neutron diffraction , reaction kinetics , time resolved spectra
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Language English (EN)
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Journal Article Rev Sci Instrum 81, no. 12 (2010): 125107. doi:10.1063/1.3514990 2010