Projects
Nanospectroscopy in ultra-high vacuum: the photon-SPM
Average techniques such as electron spectroscopy (i.e. XPS, UPS or AES) can be applied at the first stage to characterize the surface stoichiometry and chemical modification of several materials. These data may stand however in contrast to the local nature of specific cations or anions sites, whose intrinsic properties are strongly influenced by the local morphological and chemical environment. >more
AFM imagens of starch adsorptation on single crystal of hematite.
The surface science of Itabirite iron ore
In this project, iron ore from Brazil, and laboratory model system such as pure hematite and quartz monocrystals are investigated by surface sensitive techniques. The main goal is to establish a clear physical and chemical understanding on the mineral chemical interaction with differents reagents, like a corn starch and amine, in a complex aqueous solution system. These >more
Exploring photocatalytic processes at atomic scale
Limitations in the supply and environmental hazards related to fossil-fuels have stimulated intense re-search activities on renewable energies. A particularly interesting approach in this respect is the solar energy conversion into electrical or chemical energy, the latter being compatible with natural photosynthesis. In the technical >more
Investigating the impact of wettability on EOR
Water injection techniques based on enhanced oil recovery (EOR) can significantly increase reservoir yields. Typically, the yields of oil reservoirs revolve around 20 to 40% in contrast to the yields observed in gas reservoirs of the order of 80 to 90%. In the pore scale >more