Abstract Nanoscale materials modified by crystal defects exhibit significantly different behaviours upon chemical reactions such as oxidation, catalysis, lithiation and epitaxial growth. However, unveiling the exact defect-controlled reaction dynamics (e.g. oxidation) at atomic scale remains a challenge for applications. Here, using in situ high-resolution transmission electron microscopy first...

The aerobic oxidation of organic molecules and in particular alcohols bio-derived poly to value-added commodity is under continuous investigation, due the importance products (aldehydes, ketones carboxylic acids esters) challenging nature this chemical transformation, since rather harsh reaction conditions (T > 100 °C) are needed gain a significant substrate conversion [...]

in this research, the selective oxidation of benzene to maleic anhydride (man) in a fixed-bed reactor was studied. the gas phase catalytic oxidation of benzene was carried outin a laboratory scale fixed bed reactor on the catalysts, which were prepared having two different compositions on silica gel. the effects of temperature, flow rates of benzene and air, and catalyst type on the reaction se...

In this paper, the oxidation of thin low-Sb-containing AlAsSb layers quasi-lattice matched on GaAs substrates is studied in detail since, compared to AlGaAs, these alloys had prospects being laterally oxidized at a faster rate, lower process temperatures, and with reduced volume change. Combining monitoring data kinetics anisotropy atomic-force-microscopy surface measurements enables us establi...

Mixed metal bi-component oxide catalysts, including Fe/Mo, U/Mo, U/W, Fe/U, U/V and U/Sb have been prepared, characterised evaluated for gas phase selective toluene oxidation. Selective oxidation activity to form benzaldehyde was exhibited by U/Mo U/W mixed catalysts. The Fe/Mo catalyst produced the highest yield. Catalysts that formed also a range of by-products, these were other partial coupl...

The selective recovery of heavy metals of Cu, Zn, Ni and Cr from a mixed plating sludge by sulfidation and oxidation treatment was targeted in this study. At first, the mixed plating sludge was simultaneously subjected to an extraction and Cu sulfidation process at pH=1.5 to dissolve heavy metals and to precipitate Cu as CuS. In the next step, the sulfidation treatment of Zn was carried out at ...