This proposal aims to study the potential for neutron diffraction to offer spatially-, chemically-, and temporally-resolved information on a dynamic system, in this case the platinum-catalysed conversion of benzene to cyclohexane. The experiments themselves, in conjunction with parallel NMR measurements, will provide important information on the kinetics of the process, and allow a comparison of those directly-measured by neutron diffraction with the apparent kinetics obtained via NMR. Moreover, the assessment of neutron diffraction as a spatially-, chemically-, and temporally-resolving tool is of critical value - if successful, the potential benefits to the wider heterogeneous catalysis community as well as other diverse areas of the chemical sciences are enormous.