Calorimetric Measurements of Heats of Adsorption on Single Crystal Surfaces
The first calorimeter capable of measuring heats of adsorption of reactive gases on low area single crystal surfaces has been developed in our laboratory. The calorimeter utilizes a bead thermistor to measure the energy released when gas adsorbs on a single-crystal sample. The apparatus is capable of measuring energy releases on the sample as small as 15 to 20 microcalories. This new apparatus has been utilized to measure the heat of adsorption of carbon monoxide and ethylene on clean and adsorbate covered Pt(111).
University of Illinois - Urbana-Champaign
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University of Illinois at Urbana-Champaign