Novel apparatus for the in situ study of hydrothermal crystallizations using time-resolved neutron diffraction

被引:33
作者
Walton, RI [1 ]
Francis, RJ [1 ]
Halasyamani, PS [1 ]
O' Hare, D [1 ]
Smith, RI [1 ]
Done, R [1 ]
Humphreys, RJ [1 ]
机构
[1] Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England
关键词
D O I
10.1063/1.1149925
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
The design and use of a pressure cell for the in situ study of hydrothermal crystallizations using time-resolved neutron diffraction are described. This novel apparatus allows the kinetics and mechanism of the crystallization of complex inorganic solids, such as zeolites and other microporous materials, to be investigated under laboratory conditions. Reactions can be studied over a wide range of temperatures (25-250 degrees C) under conditions of autogenous pressure (1-22 bar). The use of the cell is demonstrated by a study of the hydrothermal crystallization of the zeolite sodium hydroxosodalite with time-of-flight neutron diffraction data collected using the Polaris diffractometer of the United Kingdom's pulsed spallation neutron source, ISIS. (C) 1999 American Institute of Physics. [S0034-6748(99)03208-6].
引用
收藏
页码:3391 / 3396
页数:6
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