The compound Bi2V0.9Cu0.1O5.35, a typical Aurivillius-type fast oxygen ion conductor, was evaluated as a possible cathode material for single-chamber solid-oxide fuel cells operated under mixed propane and oxygen. The material was found to be structurally stable under various C3H8 O2 environments over a wide temperature range and furthermore displayed low catalytic activity for propane oxidatio...

The oxidation of methane, ethane, propane, and n-butane has been studied over CeO2 and Ce0.8Sm0.2Ox (SDC) catalysts. The rates for methane and ethane were found to be indistinguishable over the two catalysts, while the rates for propane and n-butane were much higher on ceria compared to SDC. The difference between n-butane oxidation over ceria and SDC is shown to result from a low-temperature r...

In the present research, the selective oxidation of lauryl alcohol to lauraldehyde was studied under liquid-liquid phase transfer conditions using potassium chromate (K2CrO4) as an oxidizing agent and tetrabutyl ammonium bromide (TBAB) as the phase transfer catalyst. Chromium (VI) reagents are used in these oxidations since the alcohols are selectively oxidized <e...

In this study, a numerical investigation on the effects of ozone addition laminar premixed flame development and emissions formation carbon monoxide (CO) nitrogen oxides (NOx) for methane propane in co-flow burner is presented. Simulations reacting mixtures with concentrations 3810 ppm 6000 were performed at atmospheric pressure, ambient temperature 298 K equivalence ratios (φ) 0.8, 1.0 1.3. Ba...

Two different preparation methods, viz. incipient impregnation and mechanical mixing, have been used to prepare V-based oxygen carriers with V loadings for chemical looping oxidative dehydrogenation of propane. The effect the method, loading, reaction temperature on performance these measured discussed. It was found that VOx species can be well distributed support when loading is low (5 wt.% 10...

It is shown that the operating temperature of pellistors for detection methane can be reduced to 300 °C by using Au–Pd nanoparticles on mesoporous cobalt oxide (Au–Pd@meso-Co3O4). The aim reduce possible catalyst poisoning occurs during high-temperature operation conventional Pd-based pellistors, which are usually operated at 450 or higher. individual role as well Co3O4 in terms their catalytic...

A set of ceria-manganese mixed metal oxide catalysts with varying Ce:Mn ratios were prepared by coprecipitation using sodium carbonate and evaluated for the total oxidation propane naphthalene. Manganese-rich samples most active, Ce0.25Mn0.75Ox having highest activity. Catalysts characterised X-ray diffraction, Brunauer–Emmett–Teller (BET) surface area, Raman spectroscopy, temperature programme...

A rational synthetic approach is introduced to enable hydrogen insertion into oxides by forming a solid solution of reducible oxide with less as exemplified RuO2 and TiO2 (Ru_x, mixture x% (100−x)% TiO2). Hydrogen exposure at 250 °C Ru_x (Ru_x_250R) results in substantial incorporation accompanied lattice strain that turn induces pronounced activity variations. Here, we demonstrate mixed promot...

Iron-manganese mixed metal oxide catalysts with a range of Fe:Mn ratios were synthesised by co-precipitation using sodium carbonate and evaluated for total propane oxidation. The Fe0.50Mn0.50Ox catalyst was the most active, this due to increased surface area along formation Mn2O3 phase that not present in other catalysts. effect precipitating agent catalyst, investigating preparation (NH4)2CO3,...