High-resolution multiple gas sorption analyser for advanced nanoporous materials characterization

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The equipment requested is a high-resolution surface area and pore size physisorption analyzer equipped with modern cryostat capability. The selected Autosorb iQ unit is a high-performance fully automated gas sorption analyzer with two physisorption analysis ports, both of which equipped for low pressure micropore analysis (pores below 2 nm in diameter). This instrument is required for precise physisorption measurements with gas (N2, Ar, H2, CH4, CO2, and others) of adsorption and desorption isotherms on nanomaterials, from which various crucial surface parameters can be obtained, including specific surface area, pore size distributions (from 0.1 to 50 nm), micro-and mesopore volume, heats of adsorption, storage capacities, etc. using a variety of coolants and adsorbates for a wide variety of sample types. This system can be used for complete characterization of materials such as catalysts, sorbents, porous carbons, silica gels, zeolites, pharmaceuticals, ceramics, fillers, polymers and others.The manometric gas sorption system allows analyzing two physisorption samples from 1x10-7 to 0.999P/P0 simultaneously.The requested Optistat® DN cryostat and calorimeter options extend the capability of the iQ for most advanced porous materials research programs. This unique system permits adsorption measurements over a wide range of temperatures with various adsorptives (i.e. alternative to Ar, N2 and Kr), and accurate determination of isosteric heat of adsorption which requires measurements of multiple isotherms each at a different temperature. This instrument will be used extensively by the students and postdoctoral fellows of the research groups of the two co-applicants, F. Kleitz, and D. Larivière, in the Department of Chemistry at Université Laval.