New antimicrobial materials with cerium ions in the composition of salts, solutions, and composite systems based on Ce³⁺(NO₃)₃ × 6H₂O

Abstract

The results of a detailed characterization of new antimicrobial objects in the form of Се(NO3)3×6H2O salt with the proposed crystal-chemical composition of [Ce3+(H2O)4(NO3)3]×2H2O and its aqueous solution by X-ray diffraction...

Improved densification in cold sintering of gadolinia‐doped ceria with reactive sintering aids

“…To investigate this, TG‐DSC tests were conducted on the precursor samples, and the results are shown in Figure 6E. It can be seen that the thermal degradation of the dried precursor mixture is characterized by endothermic mass changes that follow three reactive stages, which are similar to those reported 42 . In the range of 98−240°C, water molecules bound by hydrogen bonds are removed from the [Ce 3+ (H 2 O) 4 (NO 3 ) 3 ]·2H 2 O structure, as shown in reaction : $$$$\begin{eqnarray} \left[ {{\mathrm{C}}{{\mathrm{e}}^{3 + }}{{\left( {{{\mathrm{H}}_2}{\mathrm{O}}} \right)}_4}{{\left( {{\mathrm{N}}{{\mathrm{O}}_3}} \right)}_3}} \right] \cdot 2{{\mathrm{H}}_2}{\mathrm{O}} & \to & \left[ {{\mathrm{C}}{{\mathrm{e}}^{3 + }}{{\left( {{{\mathrm{H}}_2}{\mathrm{O}}} \right)}_4}{{\left( {{\mathrm{N}}{{\mathrm{O}}_3}} \right)}_3}} \right] \nonumber\\ && +\, 2{{\mathrm{H}}_2}{\mathrm{O}} \end{eqnarray}$$$$…”

“…It can be seen that the thermal degradation of the dried precursor mixture is characterized by endothermic mass changes that follow three reactive stages, which are similar to those reported. 42 In the range of 98−240 • C, water molecules bound by hydrogen bonds are removed from the [Ce 3+ (H 2 O) 4 (NO 3 ) 3 ]⋅2H 2 O structure, as shown in reaction 1:…”