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Catalyst and Particle Characterization: Surface area and pore volume of catalysts and other porous materials. Adsorption and desorption to characterize active sites. Thermal analysis by DSC and TGA. Particle size, attrition resistance, and crush strength.
Chromatography: GC and GC/MS. Composition of organic mixtures, with quantitation often down to ppm or ppb levels. Identification and measurement of volatiles and impurities. Some specific detection capabilities, including sulfur compounds.
Computational Chemistry: Molecular modeling and simulation applies accurate, quantitative, computational chemistry techniques such as Molecular and Quantum Mechanics or Density Functional Theory, to solve industrial problems. Fundamental capabilities include calculation of energies and thermochemistry of molecules and reactions, spectra (IR, UV/visible, NMR), chemical reactivity and kinetics, and computational particle fluid dynamics.
Electron Microscopy: Scanning electron microscopy with resolution down to a few nm. EDS capability can measure elemental composition of small areas and perform element linescans and mapping.
Inorganic Elemental Analysis: ICP and XRF. Quantitation of most elements (except C, H, N, O, F), with detection limits ranging from percent to ppm to ppb depending on element and sample type. Simultaneous detection of many elements. Applications include catalysts, polymers, and lubricants. This lab also does redox titrations for catalysts.
Polymer Properties: GPC for molecular weight and molecular weight distribution. We have two GPCs: a high-temperature instrument for polyolefins and a room-temperature one for other polymers. We can also determine exane/heptane extractibles, xylene/decalin solubles, and volatiles in polymers.
Spectroscopy: NMR, FTIR, and UV/visible. Identification and molecular structure of materials. Composition of mixtures, with quantitation ranging from percent to ppm levels. Normally used for organics but occasionally inorganics as well. NMR is particularly useful for polymers, and can measure some polymer-specific properties such as tacticity and copolymerization statistics. We have three NMR spectrometers, at 300, 400, and 500 MHz, all of them fully multinuclear and automated for 24 hour operation.
Surface Science/XPS: XPS (or ESCA) determines the structure and elemental composition of the surfaces of solids, with additional chemical information including oxidation states. It examines just the first few layers of atoms, or can remove surface layers to probe deeper. Applications include catalysts, metals, and surface deposits.
X-Ray Diffraction: Identification and molecular or solid-state phase structure of materials by powder diffraction and Rietveld analysis. Can determine the composition of complex mixtures. We have two powder diffractometers, one of which has a furnace for measurements at temperatures up to 1200°C. Related technologies such as neutron diffraction, synchrotron powder diffraction, XAFS, and SAXS are available through relationships with national labs. Used for all types of solids including catalysts, corrosion deposits, and polymeric materials.
150 W Warrenville Rd
Naperville, IL 60540 US