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Tokumitsu, Shun*; Matsumiya, Masahiko*; Sasaki, Yuji
Separation and Purification Technology, 382(Part 2), p.135631_1 - 135631_9, 2026/02
Times Cited Count：0 Percentile：0.00(Engineering, Chemical)
-hexahexyl-nitrilotriacetamide and electrodepositionMatsumiya, Masahiko*; Tokumitsu, Shun*; Mishima, Takumi*; Sasaki, Yuji
ECS Advances (Internet), 3(4), p.043001_1 - 043001_8, 2024/12
The extraction behavior of Rh(III) with Hexahexyl-nitrilotriacetamide, NTAamide(C6) was investigated in three different diluents (acetophenone, AP, 1,2-dichloroethane, DCE, and 1-octanol, OC). The electrochemical behavior of the extracted Rh(III) complex in each diluent was investigated from linear sweep voltammetry. It was revealed that Rh(III) was reduced to Rh(0) metal by a three electron transfer in NTAamide(C6)/AP, DCE and OC system. The electrodeposits can be recovered from continuous solvent extraction and direct electrodeposition. The electrodeposits were identified by XPS and XRD analyses as mainly Rh metal.
Tokumitsu, Shun*; Mishima, Takumi*; Matsumiya, Masahiko*; Sasaki, Yuji
Journal of Molecular Liquids, 414, Part A, p.126150_1 - 126150_8, 2024/11
The coordination states of Ln(III), (Ln=Pr, Nd, Tb and Dy) in ILs were investigated by Raman spectroscopy. The thermodynamic properties for the isomerism of [TFSA]- from trans- to cis-isomer were evaluated. The cis-[TFSA]- conformer bound to Ln3+ cation was the preferred coordination state of [Ln(III)(cis-TFSA)5]2-. The bonding energies of [Ln(III)(cis-TFSA)5]2-, (Ln=Pr, Nd, Tb and Dy) were estimated from DFT calculation.
