Electrochemical Properties of Gel Copolymer-Electrolyte Based on Phosphonium Ionic Liquid
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Noble Poly (lithium 2-acrylamido-2-methyl propane sulfonate) and its copolymer withN-vinyl formamide based on trihexyl (tetradecyl) phosphonium acetate [(C6H13)3 P (C14H29)CH3COO; P66614 CH3COO) and trihexyl (tetradecyl)phosphonium bis(trifluoromethane sulfonyl) amide([(C6H13)3P(C14H29)] [TFSA];P66614TFSA) were prepared and analyzed to determine their characteristicsand properties. The ionic conductivity of a copolymer based P66614TFSA ionic liquidsystem exhibits a higher conductivity (8.9 × 10-5Scm-1) than that of a copolymer basedP66614CH3COO system (1.57 × 10-5Scm-1). The charge on the TFSA anion is spread very diffuselythrough the S-N-S core and particularly in the trifluoromethane groups, and this diffusionresults in a decreased interaction between the cation and the anion. The viscosity of P66614TFSA(39 cP at 343 K) and P66614CH3COO (124 cP at 343 K), which is very hydrophobic, was fairlyhigh. High viscosity leads to a slow rate of diffusion of redox species. The ionic conductivityof copolymer of a phosphonium ionic liquid system also exhibits higher conductivity than thatof a homopolymer system. Phosphonium ionic liquids were thermally stable at temperatures upto 400oC
Abstract
Noble Poly (lithium 2-acrylamido-2-methyl propane sulfonate) and its copolymer withN-vinyl formamide based on trihexyl (tetradecyl) phosphonium acetate [(C6H13)3 P (C14H29)CH3COO; P66614 CH3COO) and trihexyl (tetradecyl)phosphonium bis(trifluoromethane sulfonyl) amide([(C6H13)3P(C14H29)] [TFSA];P66614TFSA) were prepared and analyzed to determine their characteristicsand properties. The ionic conductivity of a copolymer based P66614TFSA ionic liquidsystem exhibits a higher conductivity (8.9 × 10-5Scm-1) than that of a copolymer basedP66614CH3COO system (1.57 × 10-5Scm-1). The charge on the TFSA anion is spread very diffuselythrough the S-N-S core and particularly in the trifluoromethane groups, and this diffusionresults in a decreased interaction between the cation and the anion. The viscosity of P66614TFSA(39 cP at 343 K) and P66614CH3COO (124 cP at 343 K), which is very hydrophobic, was fairlyhigh. High viscosity leads to a slow rate of diffusion of redox species. The ionic conductivityof copolymer of a phosphonium ionic liquid system also exhibits higher conductivity than thatof a homopolymer system. Phosphonium ionic liquids were thermally stable at temperatures upto 400oC
참고문헌 (18)
- Wataru Ogihara, "'Effect of Cation Sturucture on the Electrochemical and Thermal Properties of ioN Conductive Polymers Obtained From Polymerizable Ionic Liquids'", Electro Chimica Acta, 51, pp.2614~ (2006)
- Qing Dai, "'Dye Sensitized Nanocrystalline Solar Cells Incorporating Ethylmethylimidazolium-based Ionic Liquid Electrolytes'", C.R.Chimie, 9, pp.617~ (2006)
- Thomas E, "'Physical Properties of Substituted Imidazolium Based Ionic Liquids Gel Electrolyte'", Z.Naturforch, 57a, pp.839~ (2002)
- R. T. Carlin, "'Elctrochemistry of Room-temperature Chloroaluminate Molten Salts at Graphitic and Nongraphitic Electrodes'", J.Appl. Electrochem, 26, pp.1147~ (1996)
- J. Sun, "'Room- temperature Molten Salts Based on Quarternary Ammonium ion'", J.Phys.chem.b, 102, pp.8858~ (1998)
- D. R. Macfarlane, "'Ionic Liquids Based on Imidazolium, Ammonium and Pyrrolidinium Salts of the dIcynamide Anion'", Phys.chem.b, 103, pp.4164~ (1999)
- H. Matsumoto, , J. Power Sourses, 146, pp.45~ (2005)
- R. E. Ramirez, "'Molten Phosphonium Iodides as Electrolytes in Dye-sensitized Nanocrystalline Solar Cells’", Energy Mater.Sol.Cells, 90, pp.2384~ (2006)
- R. E. Ramirez, "'Electrochemical Aspects of Asymmetric Phosphonium Ionic Liquids'", J. ElectroChem. Soc, 154, pp.229~ (2007)
- N. Ito, "'Solvation Dynamics and Rotation of Coumarin 153 in Alkylphosphonium Ionic Liquids'", J.Phys.Chem, B108, pp.5771~ (2004)
- J. Sun, "Lithium Polyelectrolyte-ionic Liquid Systems’", Solid state ionics, 147, pp.333~ (2002)
- E. H. Cha, "'Ionic Conductivity Studies of Gel Polyelectrolyte Based on Ionic Liquid’", J. Power Sources, 178, pp.779~ (2008)
- J. Sun, "'Lithium Polyelectrolyte-ionic Liquid Systems'", solid state Ionics, 147, pp.333~ (2002)
- Jeniffer M, "'The Effect of Anion Fluorination in Inonic Liquids-physical Properties of a Range of bis (methanesulfonyl)", Amide Salts New Journal of Chemistry, l27, pp.1504~ (2003)
- R. Y. Bruce, "Organic Chemistry" (1995), Prence Hall
- Katsuhiko Tsunashima, "'Physical and Electrochemical Properties of Low–viscosity Phosphonium Ionic Liquids as Potential Elecrolytes", Electrochemistry Communications, 9, pp.233~ (2007)
- James Vauhan, "'Ionic Liquid Electro-Deposition of Reactive metals'", J. Minerals Metals & Materials Society’
- C. Bradaric, "Ionic Liquids, as Green Solvents Progress and Prospects", pp.41~ (2003), American Chemical Society