Direct dissolution of plutonium oxide in task specific ionic liquid

In recent years, there is a lot more research on Task specific ionic liquids (TSIL) for lanthanides and actinides, in which the functional groups are covalently attached to either cationic or anionic part of ionic liquid so as to enhance the extractability of lanthanides and actinides complexes. The present work envisages an approach for direct dissolution of PuO₂ in protonated 1-carboxy-N, N, N-trimethylmethanaminium bis (trifluoromethylsulfonyl) imide ((Hbet)(NTf2)) (TSIL). The findings signify that the reduction of Pu(IV) to Pu(III) in (Hbet)(NTf2) at glassy carbon electrode is quasi-reversible. In addition, we have also explored the effect of temperature on the redox reaction of Pu in (Hbet)(NTf2) and evaluated the transport and kinetics properties. The activation energy for the diffusion of the plutonium ion from bulk to interphase was also evaluated to be 98.3 KJ/mol in (Hbet)(NTf2). This signifies that 98.3 KJ/mol of energy is required for the diffusion of Pu(IV) ion at electrode–electrolyte interphase in (Hbet)(NTf2) medium