Connectivity of the hexagonal, cubic, and isotopic phases of the C(sub 12)EO(sub 6)/H(sub 2)O lyotropic mixture investigated by tracer diffusion sand x-ray scattering

Article Abstract:

The connectivity of the hydrophobic medium in the nonionic binary system C12EO6/H2O is investigated by monitoring the diffusion constants of tracer molecules at the transition between the hexagonal mesophase and the fluid isotropic phase. The increase in the transverse diffusion coefficient on approaching the isotropic phase reveals the proliferation of bridge like defects connecting the surfactant cylinders.

Carbon, Chemistry, Physical and theoretical, Physical chemistry, Chemical properties

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Atomic and molecular adsorption on Ir(111)

Article Abstract:

A report of the chemisorption structure and energietics of several atomic (H, O, N, S, C), molecular (N2, CO, NO, NH3), and radical (CH3, OH, NOH) species on the Ir(111) surface is presented. The thermochemistry of CO, NO, NOH, N2, NH3, and CH3 decomposition on Ir(111) was examined, leading to predictions for each species of the preference for either desorption or decomposition.

Primary nonferrous metals, not elsewhere classified, Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), Oxygen, Nitrogen, Iridium, Structure, Thermochemistry

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