Influence of nickel doping on the moisture adsorption properties of magnesium aluminate spinel: thermodynamic and kinetic analysis.

ABSTRACT: Magnesium aluminate spinel (MAS) has been widely investigated due to its exceptional properties, which include a high melting point, thermal stability, chemical inertness, abundant vacant sites, substantial porosity, and strong mechanical resilience. The hygroscopic nature of MAS continues to be a major drawback that limits the range of possible uses. In this study, the hygroscopic nature of MAS is investigated for its potential in atmospheric moisture capture. Preliminary thermodynamic and kinetic modeling was performed on experimental data to gain a deeper understanding into the material's surface properties and the fundamental adsorption mechanisms. MAS and Ni doped derivatives were synthesized by a cost-effective coprecipitation method. X-ray diffraction studies confirmed a cubic spine

SUBMITTER: Saleem A 

PROVIDER: S-EPMC12910558 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature