Effect of gamma irradiation on gas-ionic liquid and water-ionic liquid interfacial stability

Corrosion of carbon steel in the [P 14666 ][Br] ionic liquid: The effects of γ-radiation and cover gas

“…In our studies on the effect of γ-radiation on the chemical and physical properties of ILs in contact with water or gas [7,19] we have observed formation of micelles and enhancement of light scattering and attributed these phenomena due to agglomeration of the IL molecules facilitated by the radiolytically-produced small organic molecules at very small concentrations. The increase in transport of molecular oxidant, in particular H2O in the hygroscopic IL, will increase the rate of interfacial transfer of H2O from the gas phase to the IL phase and accelerate their diffusion into the IL [42].…”

“…The net radiolytic conversion of Br  to Br and eventually Br2 is extremely low in the low-dielectric IL solvent [7,30]. The mechanisms for the radiolysis of various phosphonium ILs have been described in detail elsewhere [7,19]. Briefly, the probability of the Compton scattered electron (by initial interaction of a -photon with matter) ejecting an electron (or ionizing) an atom or a molecule in the interacting solvent depends primarily on the atomic or molecular mass [30].…”

“…Since hexane is a known radiolytic decomposition product of the IL [7,19], we have investigated the effect of adding hexane to the IL on the carbon steel corrosion. Hexane is an inert compound with no charge and cannot participate in electrochemical oxidation of carbon steel.…”

“…Conversely, the intermediate radiolytic products, organic radicals, can react very effectively with O2. In addition, our earlier work has shown that the radiolytic production of small organic molecules can affect the molecular configuration within an IL and can lead to the formation of micelles and/or strengthening of the Coulombic attraction of ion-pairs within the IL [7,19]. These changes can have a significant effect on the mass and charge transport properties of the ILs and this can affect the mobility of ions and other species involved in corrosion.…”

Influence of radiation effect on extractability of an isobutyl-BTP/ionic liquid system: quantitative analysis and identification of radiolytic products

“…[7][8][9][10] In an extraction process involving SNF, radiation stability of extraction systems should be assessed carefully before their practical application, because the separation of radioactive elements would be performed under the existence of a, b, and g emitters. 11,12 Therefore, studies on the radiation effect of RTIL extraction systems are of great importance in the assessment of application feasibility in SNF reprocessing and recycling. The radiation effect on pure RTILs under g-irradiation has been widely studied.…”