Metal oxide clusters, especially transition-metal polyoxometalates, have been studied for
decades because they provide a rare opportunity to study nanoscale materials with well …

The storage of spent nuclear fuels for long periods of time in geological repositories is one
proposed solution to the stewardship of legacy, current and future nuclear waste. Recent …

By 1911, the atomic weight of uranium had been refined to 238.5 (Gmelin, vol. A2, 1980a).
The natural isotope 235 U was discovered in 1935 by mass spectrometry. The artificial …

Photo-induced transformation of soluble U (VI) to insoluble U (IV) is an effective way for
uranium extraction and removal. However, the photoreduction process needs to be …

Minerals containing peroxide are limited to studtite,(UO2) O2 (H2O) 4, and
metastudtite,(UO2) O2 (H2O) 2. High-temperature oxide-melt solution calorimetry and …

Abstract Studtite, UO4· 4H2O, and metastudtite, UO4· 2H2O, are the only minerals thought to
contain peroxide. Determination of the structure of studtite has shown it to contain peroxide …

Coffinite, USiO4, is an important U (IV) mineral, but its thermodynamic properties are not well-
constrained. In this work, two different coffinite samples were synthesized under …

The contact of commercial spent nuclear fuel (CSNF) with water over a 2-year period led to
an unexpected corrosion phase and morphology. At short hydration times, crystallites of …

This work conducts a review on reported mechanisms of uranium corrosion in water for
studies carried out over the past 65 years. Close examination of the processes occurring in …

The design of a safe spent nuclear fuel repository requires the knowledge of the stability of
the secondary phases which precipitate when water reaches the fuel surface. Studtite is …