The physics of diffusion in disordered nanoporous media have attracted a lot of attention, due to applications in many industrial processes involving heterogeneous catalysis, separations, and controlled molecular delivery and uptake. Usual studies of diffusion in disordered porous media obfuscate effects on the pore scale, as pore network effects influence the overall diffusion. To gain more insight into to effects of geometry on diffusion in the Knudsen regime at the level of individual pores, measurements are performed in a high-vacuum system. The experiments emulate what is happening in disordered nanoporous media on a macroscopic scale, by using a high-vacuum system and 3D-printed channels to investigate features of complex porous media, such as fractal pores. This set-up allows us to validate Knudsen diffusion theory in complex geometries more directly than has ever been the case.
PhD, Chemical Engineering, University College London, London, UK (2021)
MSc, Chemical Engineering, Delft University of Technology, Delft, Netherlands (2015)
BSc, Chemical Engineering, Zhengzhou University, Zhengzhou, China (2012)