(421m) Packed Bed Packets, Effective Thermal Conductivity and Advantage of in-Situ W ALD
Tungsten is added to a porous structure in order to increase the effective thermal conductivity (keff) of the starting material and surpass the keff of a packed Al2O3 catalyst support. The conformal self-limited ALD reaction maintains porous properties of the starting material, preserves surface area of the catalyst support, and improves thermal conductivity. In-situ W ALD of 25 cycle’s deposit uniformly throughout a packed bed of porous particles and particle internal volume and display increased keff. An original sample preparation technique was used for measuring thermal conductivity of packed beds coated by ALD.