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Matrices for immobilization of the rare earth–actinide waste fraction, synthesized by cold crucible induction melting

“…3 ("Pyrochlore-2") (wt %: 14 (La 0.5 Ce 0.5 Gd)TiZrO 7 . Pyrochlore prevails in this sample (85-90%), with a small amount of rare earth titanate also present (Fig.…”

“…Low diffusion rate of elements in solid-phase synthesis prevents attainment of the equilibrium, and preservations of relics of the initial charge leads to increased leaching of actinides from the matrix. Other methods for the synthesis of these materials are technically complicated (hot pressing [13]) or are in the step of laboratory trials (self-propagating high-temperature synthesis [14,15], spark plasma sintering [16,17]). …”

A facile approach to enhance the hydrogen evolution reaction of electrodeposited MoS2 in acidic solutions

“…Because the ionic diameter of Ni 2+ (0.069 nm) is higher than Mo 4+ (0.065 nm), the increase of the crystal parameters will induce the blue shift of XRD patterns. 30,31 By considering the low Ni addition ratio during electrodeposition and TEM observations, we predict that the Ni intercalation should be dominant in the as-prepared Ni-MoS 2 samples.…”

Self-Propagating High-Temperature Synthesis for Immobilization of Simulated Radioactive Sandy Soil Waste

“…The final waste form can remain in place without transportation and disposal. Especially, the method has a low investment for facility construction, and it is suitable particularly for small volume hazardous wastes, including calcined radioactive, contaminated clay soils, ash, and spent inorganic ion exchange materials [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] .…”