Sökning: "thorium hydrolysis"
Hittade 4 avhandlingar innehållade orden thorium hydrolysis.
1. Uncertainties in Actinide Solubility Calculations Illustrated using the Th-OH-PO4 System
Sammanfattning : Computer simulations have become increasingly popular in many different areas over the years, owing mainly to more effective and cheaper machines. In many cases, the trend seems to be that computer simulations are replacing experiments, at least in areas in which experiments are very difficult (expensive) or impossible. LÄS MER
2. Hydration, solvation and hydrolysis of multicharged metal ions
Sammanfattning : Structures of hydrated, solvated and hydrolyzed multicharged metal ions are determined by EXAFS and LAXS in solution, and by X-ray crystallography and EXAFS in the solid state. During hydrolysis, the nine-coordinate hydrated thorium(IV) ion is first transformed to a dimer, [Th₂(μ²-OH)₂(H₂O)₁₂]⁶⁺, then to a tetramer, [Th₄(μ²-OH)₈(H₂O)₁₆]⁸⁺, and finally to a hexamer, [Th₆(μ³-O₈)(H₂O)n]⁸⁺ with increasing pH and thorium(IV) concentration in an aqueous solution. LÄS MER
3. Fabrication and Testing of Doped Uranium Nitride as an Accident Tolerant Fuel Alternative
Sammanfattning : Nuclear energy is a carbon-free energy source often considered less harmful to the environment than fossil fuels. However, accidents have shown that there are some safety concerns regarding nuclear energy that need to be continuously assessed and further improved. LÄS MER
4. Surface Complexation Studies in An (Th, U(IV), Pu(VI)) Systems
Sammanfattning : Two-phase systems containing an electrolyte solution and a suspended solid were studied. The common denominator for the three systems examined in this work is that they contain actinides (elements of atomic numbers between 89 and 103) in either the solid phase or as a sorbate. Experiments were done on simple oxides. LÄS MER
