applied potentials, we treated the liquid-metal interface as a polarizable continuum using the linearized Poisson-Boltzmann equation, as implemented in VASPsol67, where the Debye length was set to 3 Å, corresponding to a 1 M concentration of electrolytes with a relative permittivity of 78.4...
In addition, to know the ratio of H2O to CO32− on the samples under different relative humidity conditions, the weight of the samples at each dew point was measured in a CO2 free condition. The weight change of the samples is due to the changing amount of water adsorbed on the surface...
Photocurrent densities (Jphoto,PVK) are reported relative to the perovskite area for consistency. Planar and NW p+n-Si substrates were coated with a 10-nm-thin TiO2 layer to prevent NW degradation in the basic anodic solution. PtAu clusters were co-sputtered onto the compact TiO2 layer, as...
The K+(H2O)n vibration associated with Vac exhibited a larger Stark tuning slope of 37.9 cm−1 V−1 relative to Vac-air, suggesting that the K+(H2O)n at the Vac interface was in a stronger local potential electric field relative to Vac-air (Fig. 5g-i). Furthermore, the ...
The relative populations of the exposed facets of Cu were probed using Pb underpotential deposition measurements conducted in a three-electrode single-compartment cell. A graphite carbon rod and Ag/AgCl (3 M KCl) were used as the counterelectrode and reference electrode, respectively. An L-type...
Contrarily, it involves specific threats such as nuclear proliferation, radiation, and management of radioactive waste, which can thwart the relative acceptance of this potential energy option. Therefore, debate and further research are required to reach a national-level political consensus about the ...
Table 4 shows the relative atomic compositions on the surfaces of LSF72, LSF82, and LSF92. The atomic concentration of oxygen on the surface of each of the three samples is around 70 %, which is higher than the theoretical value of 60 % calculated from the ideal perovskite formula, ABO3...
By measuring Δ14C, we can estimate carbon added from fossil fuels relative to a background site. However these measurements are challenging, especially for atmospheric CH4, due to its relatively low concentration (∼1.9 ppm) and the large amount of air needed to collect enough carbon for the...
11). More importantly, the partial current density of C2+ products on Ag-Cu heterostructures were significantly enhanced in relative to primitive Cu-bipy (Fig. 2b), suggesting a synergistic catalytic behavior between Ag and Cu. Fig. 2: Electrochemical CO2R product quantification. a The product ...
As such, CO2-sequestering components of the invention, which comprise one or more synthetic carbonates derived from industrial CO2, reflect the relative carbon isotope composition (δ13C) of the fossil fuel (e.g., coal, oil, natural gas, or flue gas) from which the industrial CO2 (from ...