The response variables, namely the amounts of rh-Cu/Zn-SOD penetrated into the different skin layers, were analyzed by ELISA (enzyme linked immunosorbent assay).
The stoichiometric amounts of RH-SiO2 (20 g) and magnesium (Mg) powder (16 g) were milled in an attrition-miller (KMAM-3C, KMTech) at 600 rpm.
The addition of a small amount of Rh (0.1 0.5 wt%) increased the CO conversion by 50% without affecting the selectivity.
This study also demonstrates the appropriate amount of Rh to use, based on the PSR performance over Ni/YSZ and 0.1, 0.5, and 1.0 wt.% Rh/Ni/YSZ for 100 h.
The sample prepared in absence of KNO3 as the supporting electrolyte at −1.2 V vs saturated calomel electrode for 2000 s yielded the catalyst with the best performances thanks to an improved coating and large amount of Rh in the outer part of the catalytic coating.
If there was any aggregation of Rh on the surface then the detected amount of Rh on L5RhZ surface would be less or close to that of L2RhZ.
Besides the influence on the adsorption amount of Rh B molecules, the adsorption modes of the Rh B will also be greatly influenced when the pH of the solution changes.
The amount of Rh in the 5 % and the 2 % sample appears to be in excess of the maximum substitution limit of the pyrochlore structure, and thus resulted in the formation of a separate LaRhO3 perovskite phase.
The experimental results clearly indicate that the adsorption amount of Rh B molecules decreases with the increase of pH from 2 to 8, which is in the same sequence with the changes in photocatalytic efficiencies.
The adsorption kinetics can be well fitted by a pseudo-second-order model, expressed by Eq. (1) frac{t}{{q_{text{t}} }} = frac{1}{{kq_{text{e}}^{2} }} + frac{t}{{q_{text{e}} }} (1 where k is the rate constant [g (mg min −1], q e is equilibrium adsorption capacity (mg g−1), and q t is the amount of Rh B (mg g−1) adsorbed at time t.
The Rh O occupations were used to assess the amount of Rh that was oxidized.
