Interstitial Incorporation of Plutonium into a Low-Dimensional Potassium Borate

Wang, Shuao; Diwu, Juan; Simonetti, Antonio; Booth, C. H.; Albrecht‐Schmitt, Thomas E.

doi:10.1021/es2028247

Cited by 6 publications

(2 citation statements)

References 81 publications

(156 reference statements)

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“…The background signal measurements show that background count rates are in range of 10–100 cps, while the neodymium signal exhibits enhanced counts when laser ablation was performed on the crystal. The neodymium signal is concomitant with the signal for uranium, indicating that Ln ions are incorporated into the entire crystals of uranyl vanadates instead of being adsorbed on the surface …”

Section: Resultsmentioning

confidence: 99%

Insertion of Trivalent Lanthanides into Uranyl Vanadate Layers and Frameworks

Wang¹,

Yin²,

Zhao³

et al. 2015

Inorg. Chem.

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Two new uranyl vanadates have been prepared from hydrothermal reactions and structurally characterized by single-crystal X-ray diffraction. The structure of (H3O)UO2VO4 (UVO-1) consists of anionic layers containing UO2(2+) pentagonal bipyramids coordinated by edge-sharing VO5 square pyramids, with the charge balanced by interlaminar H3O(+) cations. Vanadium in (UO2)3(VO4)2(H2O)3 (UVO-2) exists as monomeric VO4 tetrahedra coordinating to UO2(2+) pentagonal bipyramids, forming a 3D uranyl(VI) vanadate framework. Similar reactions with the addition of Ln(NO3)3 (Ln = Nd, Eu) afford the three heterobimetallic lanthanide uranyl vanadate frameworks Nd(UO2)3(VO4)3(H2O)11 (NdUVO-1), Eu(UO2)3(VO4)3(H2O)10 (EuUVO-1), and Eu2(UO2)12(VO4)10(H2O)24 (EuUVO-2). In NdUVO-1 and EuUVO-1, Ln(3+) cations are inserted into the interlayer space of UVO-1 substituting for H3O(+) and further bridging adjacent layers into 3D frameworks. Similarly, EuUVO-2 adopts the same sheet topology as UVO-2, with Eu(3+) ions replacing some of the interlayer uranyl ions in UVO-2. Our work has demonstrated that uranyl vanadate extended structures are excellent hosts for further incorporation of trivalent lanthanide/actinide cations and has provided a new way to create new heterobimetallic 4f-5f and 5f-5f compounds.

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Section: Resultsmentioning

confidence: 99%

Insertion of Trivalent Lanthanides into Uranyl Vanadate Layers and Frameworks

Wang¹,

Yin²,

Zhao³

et al. 2015

Inorg. Chem.

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“…We have recently become interested in investigating the interstitial incorporation of Pu(III) and Pu(IV) in low-dimensional borate phases to determine the potential of these phases to reduce the mobility of actinides during long-term geologic disposal [15]. In an attempt to prepare KB 5 O 7 (OH) 2 Á2H 2 O in the presence of Pu(III) via the synthesis of Zhang and coworkers [16], single crystals of PuO 2 unexpectedly formed in the reaction product.…”

Section: Introductionmentioning

confidence: 99%