The application of surface complexation models (SCMs) to natural sediments and soils is hindered by a lack of consistent models and data for large suites of metals and minerals of interest. Furthermore, the surface complexation approach has mostly been developed and tested for single solid systems...
c, dDependence of FE (lefty-axis) and current density (based on geometric surface area, righty-axis) of (b) Cu-CDs, (c) CDs+Cu2+, and (d) CuPc on the applied potential.ePartial CH4current density
In the red sample (n. 29), the crystal diameter varies in the 450–750 nm range, and the surface density of particles is estimated to be 0.06 𝑝𝑎𝑟𝑡𝑖𝑐𝑙𝑒𝑠.μparticles.μm−2. The orange sample (n. 70) displays crystals with a greater diversity of diameters, ...
The factors that affect the sintering and aggregation of copper particles are also different. In general, the larger the specific surface area of the catalyst, the less likely the copper nanoparticles are to aggregate [68]. When the active metal–support interaction is weak, the catalyst is ...
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·2H2O. Hirshfeld surface analysis was employed to determine the most important intermolecular interactions in the crystallographic structures. The structures of both complexes were further examined using density functional theory and natural bond orbital analysis. The photocatalytic decomposition of methylene ...
The leaching effect was studied against CO2 reactivity and was shown to significantly increase the materials’ surface area, enrich the porosity, alter the nitrogen nature, and deplete the Cu nanoparticles. The effect of those parameters was reflected in the materials’ electrochemical performances. ...
In another study regarding layered titanate-intercalated pyridine, two values of the d-spacing were reported: (i) a value of 3 Å when pyridine was inserted flat into the interlayer space and (ii) 5.8 Å when pyridine was intercalated perpendicular to the surface [30]. The chain length ...
surface area than that obtained with the pure TiO2material, and the pore volume increased from 0.26 to 0.48 cm3/g, which can be attributed to structural defects in the titania due to the presence of Cu cations [34]. The average pore diameter remained constant at 5.7 nm in both catalysts....
surface area and volume was achieved when CTAB was embedded within ordered mesoporous silica nanoparticles. Physicochemical characterization was performed by using structural and spectroscopic techniques to elucidate the properties of hierarchical SAPO-34 before and after Cu introduction. The speciation of ...