Recovery of Iridium by Solvent Extraction and Direct Electrodeposition Using Phosphonium-Based Ionic Liquids
Recovery of Iridium by Solvent Extraction and Direct Electrodeposition Using Phosphonium-Based Ionic Liquids
复制标题
鏻基离子液体溶剂萃取和直接电沉积回收铱
DOI:
10.1149/1945-7111/abfb34
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发表时间:
2021
影响因子:
3.9
通讯作者:
Sasaki Yuji
中科院分区:
文献类型:
--
作者:
Matsumiya Masahiko;Kinoshita Ryoma;Tsuchida Yusuke;Sasaki Yuji
The extraction behavior of Ir (IV) in a phosphonium-based ionic liquid (IL) system, triethyl-n-pentyl phosphonium bis (trifluoromethyl-sulfonyl) amide ([P 2225][NTf 2]), was investigated using an amine extractant. In addition, the electrochemical behavior of the extracted Ir (IV) species in [P 2225][NTf 2] during electrodeposition was studied. Voltammetry-based electrochemical analysis revealed that the reduction of Ir (IV) proceeded via an intermediate Ir (III) species in two steps, namely, Ir (IV)+ e−→ Ir (III) and Ir (III)+ 3e−→ Ir (0). Diffusion coefficients of the extracted Ir (IV) species in the IL were determined over the temperature range of 298–373 K using semi-integral and semi-differential analyses, and values obtained from the two analyses were consistent with each other. Furthermore, consecutive solvent extraction and electrodeposition of Ir metal in the IL bath were performed for 10 cycles. The entire Ir electrodeposit was in the metallic state, as is evident from the 4f 7/2 spectrum obtained by XPS.
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DOI:
--
发表时间:
1972
期刊:
影响因子:
--
作者:
G. C. Allen;R. Al;G. El;K. D. Warren
通讯作者:
K. D. Warren
影响因子:
7.2
作者:
A. Gupta;Robin Z. Parker;R. Hanrahan
通讯作者:
R. Hanrahan
影响因子:
4.7
作者:
Sun, P. P.;Lee, M. S.
通讯作者:
Lee, M. S.
影响因子:
1.8
作者:
N. Rice;H. Irving;M. A. Leonard
通讯作者:
M. A. Leonard
影响因子:
0.7
作者:
Qian Jiangang;Xia Shiming;Zhao Tian;Luan Haijing
通讯作者:
Luan Haijing