Shervin Azad

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The hydrogenation of ethylene on Pd(111) is probed using a combination of temperature-programmed desorption (TPD) and reflection-absorption infrared spectroscopy (RAIRS). Ethylene adsorbs on clean Pd(111) in a di-σ configuration but converts to π-bonded species when the surface is presaturated by hydrogen. Ethane is formed with an activation energy of 3.0 ((More)
Inevitably, underwater oil exploration results in underwater noise. Exploration surveys often last for months and the noise produced is becoming pervasive in the ocean. Although more research is needed to better understand the impacts of anthropogenic sound on marine biodiversity, a variety of marine flora and fauna have exhibited negative responses to such(More)
The adsorption of methyl isocyanide (CH3NC) and acetonitrile (CH3CN) has been studied on Pd(111). Methyl isocyanide adsorbs on Pd(111) at 80 K at low coverages with the isocyanide functionality oriented close to parallel to the surface; the surface-bound species reorients to a geometry in which the isocyanide group is perpendicular to the surface as the(More)
1,4-Dioxane adsorbs on Pd(111) at 80 K to form an overlayer saturating at an exposure of ~4 L (1 L=1×10−6 Torr s) and desorbs with a peak centered at ~268 K in temperature-programmed desorption. Multilayer growth commences for exposures >2 L suggesting that they form before the monolayer is completed. The multilayers desorb at ~160 K. Reflection–absorption(More)
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