μ-XRD-CT studies of low-temperature water-gas shift catalysts during activation and reaction: Effect of catalyst and gas composition on the

The aim of this investigation is to determine how operando conditions of Cu and Cs loadings will impact Low Temperature-Water Gas Shift (LT-WGS) catalysts. In particular, we wish to determine whether particle sintering and decomposition occurs during the activation (reduction) or the WGS process, and wish to find the effect the height of the bed has. The effect of H2/H2O partial pressure and Cs will be investigated alongside this. To perform this, a 1D line-scan XRD measurement along the height of the bed (resulting in a 2D study) as a function of time will be performed. At the beginning and end of the experiments μ-XRD-CT cross sections will be acquired to probe radial composition uniformity with a spatial resolution of ~ 20 μm.