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John L. Falconer
Hydrogen Separations

We modify MFI and SAPO-34 membranes to create membranes that have high selectivities for removing H₂ from mixtures contaiing CO₂, CO, CH₄, and other gases. These modifications have yielded membranes that are selective for hydrogen, and the selectivity and flux both increase with temperature. These modification methods include silylation and atomic layer deposition (ALD).

Sample Publications

M. Hong, J.L. Falconer, and R.D. Noble, “Modification of B-ZSM-5 and SAPO-34 Membranes for H₂ Separation by Catalytic Cracking of Methyldiethoxysilane”, Ind. Eng. Chem. Research 44, 4035-4041 (2005).

M. Hong, S. Li, .J.L. Falconer, R.D. Noble, “Hydrogen Purification using a SAPO-34 Membrane”, J. Membrane Science 307, 277-283 (2008).

M. Yu, S. Lu, J.L. Falconer, R.D. Noble, “Reversible H2 Storage with a SPO-34 Membrane” Microporous Mesoporous Materials, in press (2007).

M. Hong, S. Li, J.L. Falconer, R.D. Noble, “Ion-Exchanged SAPO-34 Zeolite Crystals and Membranes” Microporous Mesoporous Materials 106, 140-146 (2007).

M. Hong, J.L. Falconer, R.D. Noble, “Silylation of B-ZSM-5 Membranes for H2 Separation and the Effect of Operating Conditions”, (2009).