title: Experimental arrangements suitable for the acquisition of inelastic neutron scattering spectra of heterogeneous catalysts.
abstract: Inelastic neutron scattering (INS) is increasingly being used for the characterization of heterogeneous catalysts. As the technique is uniquely sensitive to hydrogen atoms, vibrational spectra can be obtained that emphasize a hydrogenous component or hydrogen-containing moieties adsorbed on to an inorganic support. However, due to sensitivity constraints, the technique typically requires large sample masses (∼10 g catalyst). A reaction system is hereby described that enables suitable quantities of heterogeneous catalysts to be appropriately activated and operated under steady-state conditions for extended periods of time prior to acquisition of the INS spectrum. In addition to ex situ studies, a cell is described which negates the need for a sample transfer stage between reaction testing and INS measurement. This cell can operate up to temperatures of 823 K and pressures up to 20 bar. The apparatus is also amenable to adsorption experiments at the gas-solid interface.
authors: Department of Chemistry, Joseph Black Building, The University of Glasgow, Glasgow G12 8QQ, United Kingdom.
authors: Ian P
authors: IP
authors: Silverwood
authors: Neil G
authors: NG
authors: Hamilton
authors: Andrew
authors: A
authors: McFarlane
authors: R Mark
authors: RM
authors: Ormerod
authors: Tatiana
authors: T
authors: Guidi
authors: Jonathan
authors: J
authors: Bones
authors: Michael P
authors: MP
authors: Dudman
authors: Christopher M
authors: CM
authors: Goodway
authors: Mark
authors: M
authors: Kibble
authors: Stewart F
authors: SF
authors: Parker
authors: David
authors: D
authors: Lennon