Systematic Calculation of Pu Pourbaix Diagrams: Modelling Support for the LANL ACRSP Team

Citations Over Time

Abstract

The report enclosed entitled “Systematic Calculation of Pu Pourbaix Diagrams: Modelling Support of the LANL ACRSP Team” was prepared by Amphos21 under contract to the Los Alamos National Laboratory Actinide Chemistry and Repository Science Program (ACRSP) team to support an enhanced understanding of the actinide and brine chemistry in the Waste Isolation Pilot Plant (WIPP) transuranic repository. In this report, the ThermoChimie chemistry model and database, with some slight modifications, were used to calculate Pourbaix diagrams to investigate the effects of ionic strength, organic complexation, and metal competition on the predominance diagrams for aqueous and solid plutonium species under the anoxic and reducing conditions expected in the repository. These diagrams were connected to iron chemistry phase diagrams since this iron chemistry is expected to define and control redox properties in the WIPP repository concept.

Related Papers

• → Thermodynamics of Corrosion: Pourbaix Diagrams(2009)75 cited
• → Pourbaix Diagrams(2018)11 cited
• → Electrochemical Pourbaix diagrams of Mg–Zn alloys from first-principles calculations and experimental thermodynamic data(2021)16 cited
• → Computation of Pourbaix Diagrams at Elevated Temperature(2011)13 cited
• → Thermodynamics: Pourbaix Diagrams(2008)8 cited