The role of chemisorbed oxygen on diamond surfaces for the dehydrogenation of ethane in the presence if carbon dioxide

Article Abstract:

Oxidized diamond played a significant role as an efficient support for Cr (sub 2) O (sub3)- loaded catalyst during the dehydrogenation of C (sub 2) H (sub 6) to C (sub 2) H (sub 4) in the presence of carbon dioxide at 923 K, giving a 22.5% C (sub 2) H (sub 4) yield with a 87.7% C (sub 2) H (sub 4) selectivity. The activity of the oxidized diamond-supported Cr (sub 2) O (sub3) catalyst in the presence of CO (sub 2) was about 3 times higher than that in the absence of CO (sub 2).

Primary nonferrous metals, not elsewhere classified, Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), Oxygen, Industrial Gas Manufacturing, Industrial gases, Chromium, Oxidation-reduction reaction, Oxidation-reduction reactions, Chromium (Metal), Chemical properties

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Surface chemistry of nanometer-sized aerosol particles: Reactions of molecular oxygen with 30 nm soot particles as a function of oxygen partial pressure

Article Abstract:

The kinetics of the reaction between soot nanoparticles and molecular oxygen were studied by tandem differential mobility analysis (TDMA). The effects of aerosol aging and transport are minimized, because the soot is freshly generated and studied by aerosol techniques.

Aerosols, Surface chemistry

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Microstructure evolution in diamond CVD: computer simulations of 111 surface site formation on a growing diamond-100 surface

Article Abstract:

A Monte Carlo simulation was used to explore the kinetics and mechanisms of 111-syrface site formation on a growing diamond-100 surface. It was concluded surface migration plays an important role in microstructure in diamond CVD.

Observations, Dynamics, Dynamics (Mechanics), Chemical vapor deposition, Chemical vapour deposition

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