Patent ID: 9194920
Filing Date: 2015-11-24
Classification: G01R,Y10T

Abstract:
1. A nuclear magnetic resonance (NMR) probe for high resolution in situ NMR investigations, the probe comprising: a magic angle spinning (MAS) rotor that defines a sample chamber with an internal volume greater than or equal to about 0.01 cm a first (top) end plug disposed above the sample chamber comprising an introduction tube that couples to at least three inlets, the inlets are configured to introduce a carrier gas containing one or more reactants or a mixture thereof to a catalyst or a solid within the sample chamber at a pressure at or above atmospheric pressure; a second (bottom) end plug disposed below the sample chamber comprising an exit tube that couples to at least three outlets, the outlets are configured to collect one or more reaction products when released from the catalyst or solid within the sample chamber at a pressure below atmospheric pressure; and a spin (drive) tip disposed below the second end plug through which the exit tube from the second end plug extends, the exit tube delivers the one or more reaction products collected from the sample chamber in the at least three outlets as the rotor rotates, the exit tube couples operatively to a vacuum pump or device disposed external to the rotor that maintains the pressure difference between the inlets and outlets within the rotor.