A kinetic study of elemental mercury (Hg(0)) oxidation reaction over molybdenum (Mo)-promoted vanadium (V)-based selective catalytic reduction (SCR) catalyst was carried out. To probe the role HCl and O2 in Hg(0) catalyst, a real-time experiment conducted. It found that adsorption negligible adsorbed onto surface could show consistent performances presence at realistic SCR temperatures. NH3 sho...

Pt/Zr(x)-HMS/HZSM-5 catalysts with various Si/Zr ratios (as x) were used for investigation of the kinetics of n-heptane reforming process under 350 - 450 oC reaction temperature, 35 to 80 ml min-1 flowing rate of hydrogen and 2 to 5 ml h-1 flowing rate of n-heptane. In the present work, two kinetics (power law and Langmuir - Hinshelwood) models were selected and examined to describe the kinetic...

In recent years, due to improvements in calculation methods and increased computer power, it has become possible to perform first-principles investigations for ‘simple’ chemical reactions at surfaces. We have carried out such studies for the catalytic oxidation of CO at transition metal surfaces, in particular, at the ruthenium surface for which unusual behavior compared to other transition met...

In this paper, a kinetic study of the oxidation of maleic and fumaric acid organic particles by gas-phase ozone at relative humidities ranging from 90 to 93% is reported. A flow of single component aqueous particles with average size diameters in the range 2.6–2.9 mm were exposed to a known concentration of ozone for a controlled period of time in an aerosol flow tube in which products were mon...

Catalytic ketonization of carboxylic acids is promising for the synthesis renewable products. Despite its potential, fatty acid and kinetics in liquid phase are less investigated. This work encompasses kinetic evaluation two TiO2 catalysts (anatase rutile) C-C coupling C12-C18 inert dodecane solvent. The rutile catalyst, with higher Lewis density, showed intrinsic activity more favorable activa...

Nonelectrochemical hydrogen peroxide direct synthesis (HPDS) under ambient conditions is an environmentally benign and energy-efficient process that produces a green oxidizer, yet the reaction mechanism of HPDS still controversial. Inspired by recently suggested heterolytic involves electron proton transfer at Pd catalysts, we propose new electrochemical density functional theory (DFT) model co...

Electrochemical techniques, coupled with in situ scanning tunneling microscopy, have been used to examine the mechanism of CO oxidation and the role of surface structure in promoting CO oxidation on well-ordered and disordered Pt(111) in aqueous NaOH solutions. Oxidation of CO occurs in two distinct potential regions: the prepeak (0.25-0.70 V) and the main peak (0.70 V and higher). The mechanis...

Supported platinum particles with the help of strong metal-support interaction (SMSI) could boost catalytic performance. Pt/Fe2O3 cubes were synthesized by in situ reductions precursors over Fe2O3 cubes, tested for oxidation NO, and further characterized different techniques. The tests showed that exhibited a dramatically enhanced activity NO comparison to Pt/SiO2, physical mixture suggesting s...

Dedicated to Prof. G. M. Schwab on the occasion of his 80th birthday The reaction of oxygen and CO to form CO2 has been investigated using an Ir (111) surface as an acting catalyst. Both instationary and stationary reaction processes have been established via separate gas exposing techniques. The instationary reaction process, achieved from coadsorbed CO and O which per se is an LH reaction is ...