Abstract
We conducted a study on the transport properties of an ionic liquid 4-(2-methoxyethyl)-4-methylmorpholin-4-ium bis(trifluoromethylsulfonyl)amide ([MorMEOM][TFSI]) and lithium bis(trifluoromethanesulfonyl) imide (LiTFSI)-doped [MorMEOM][TFSI] at various temperature and atmospheric pressure states through conductivity, viscosity, and self-diffusion coefficient characterizations. Based on the Walden rule, the αvalues of neat [MorMEOM][TFSI] and LiTFSI-doped [MorMEOM][TFSI] estimated from the slopes of Walden plots were compared to those calculated from Ea,Λ/Ea,η. The diffusion coefficients of 1H, 19F and 7Li were determined using the PGSE-NMR method to carry out a study of the dynamics of the cations, anions, and ion pairs. All of the neat [MorMEOM][TFSI] and LiTFSI-doped [MorMEOM][TFSI] gave approximately straight lines for change in the D with Tη-1, demonstrating that the Stokes-Einstein equation holds for the ionic diffusivity in the ILs.
| Original language | English |
|---|---|
| Pages (from-to) | 22-31 |
| Number of pages | 10 |
| Journal | Journal of the Taiwan Institute of Chemical Engineers |
| Volume | 53 |
| DOIs | |
| Publication status | Published - 2015 Aug 1 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Chemical Engineering(all)
Cite this
}
Impact of lithium salt addition on ionic transporting properties in a binary ionic liquid electrolyte composed of 4-(2-methoxyethyl)-4-methylmorpholinium bis(trifluoromethanesulfonyl)imide and LiTFSI. / Lin, Yuan Chung; Kuo, Chung Wen; Kuo, Ping-Lin; Hao, Lin; Tseng, Lan Yu; Wu, Tzi Yi.
In: Journal of the Taiwan Institute of Chemical Engineers, Vol. 53, 01.08.2015, p. 22-31.Research output: Contribution to journal › Article
TY - JOUR
T1 - Impact of lithium salt addition on ionic transporting properties in a binary ionic liquid electrolyte composed of 4-(2-methoxyethyl)-4-methylmorpholinium bis(trifluoromethanesulfonyl)imide and LiTFSI
AU - Lin, Yuan Chung
AU - Kuo, Chung Wen
AU - Kuo, Ping-Lin
AU - Hao, Lin
AU - Tseng, Lan Yu
AU - Wu, Tzi Yi
PY - 2015/8/1
Y1 - 2015/8/1
N2 - We conducted a study on the transport properties of an ionic liquid 4-(2-methoxyethyl)-4-methylmorpholin-4-ium bis(trifluoromethylsulfonyl)amide ([MorMEOM][TFSI]) and lithium bis(trifluoromethanesulfonyl) imide (LiTFSI)-doped [MorMEOM][TFSI] at various temperature and atmospheric pressure states through conductivity, viscosity, and self-diffusion coefficient characterizations. Based on the Walden rule, the αvalues of neat [MorMEOM][TFSI] and LiTFSI-doped [MorMEOM][TFSI] estimated from the slopes of Walden plots were compared to those calculated from Ea,Λ/Ea,η. The diffusion coefficients of 1H, 19F and 7Li were determined using the PGSE-NMR method to carry out a study of the dynamics of the cations, anions, and ion pairs. All of the neat [MorMEOM][TFSI] and LiTFSI-doped [MorMEOM][TFSI] gave approximately straight lines for change in the D with Tη-1, demonstrating that the Stokes-Einstein equation holds for the ionic diffusivity in the ILs.
AB - We conducted a study on the transport properties of an ionic liquid 4-(2-methoxyethyl)-4-methylmorpholin-4-ium bis(trifluoromethylsulfonyl)amide ([MorMEOM][TFSI]) and lithium bis(trifluoromethanesulfonyl) imide (LiTFSI)-doped [MorMEOM][TFSI] at various temperature and atmospheric pressure states through conductivity, viscosity, and self-diffusion coefficient characterizations. Based on the Walden rule, the αvalues of neat [MorMEOM][TFSI] and LiTFSI-doped [MorMEOM][TFSI] estimated from the slopes of Walden plots were compared to those calculated from Ea,Λ/Ea,η. The diffusion coefficients of 1H, 19F and 7Li were determined using the PGSE-NMR method to carry out a study of the dynamics of the cations, anions, and ion pairs. All of the neat [MorMEOM][TFSI] and LiTFSI-doped [MorMEOM][TFSI] gave approximately straight lines for change in the D with Tη-1, demonstrating that the Stokes-Einstein equation holds for the ionic diffusivity in the ILs.
UR - http://www.scopus.com/inward/record.url?scp=84937635926&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84937635926&partnerID=8YFLogxK
U2 - 10.1016/j.jtice.2015.02.017
DO - 10.1016/j.jtice.2015.02.017
M3 - Article
AN - SCOPUS:84937635926
VL - 53
SP - 22
EP - 31
JO - Journal of the Taiwan Institute of Chemical Engineers
JF - Journal of the Taiwan Institute of Chemical Engineers
SN - 1876-1070
ER -