Synthesis and characterization of an electroactive ionic liquid based on the ferrocenylsulfonyl(trifluoromethylsulfonyl)imide anion

Gélinas, Bruno; Rochefort, Dominic

doi:10.1016/j.electacta.2014.11.154

Cited by 22 publications

(14 citation statements)

References 52 publications

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“…The diffusion coefficient of [FcNTf] anion in IL medium is 1 order of magnitude lower than in acetonitrile (1.03 × 10 –6 cm 2 s –1 ) . Compton et al reported the diffusion coefficient for ferrocene in [BMIm] [NTf 2 ] using the same method, and the diffusion coefficient of Fc was 3.77 × 10 –7 cm 2 s –1 , which is significantly higher than the [FcNTf] diffusion, due to the larger radius of the latter.…”

Section: Resultsmentioning

confidence: 99%

“…These redox potentials ( E 0 ′) are presented in Table , and the difference between the E 0 ′ of the anodic and cathodic species is 1.06 V. The CVs of [Fc(II)NTf] and [Fc(III)NTf] at different scan rates are presented in the Supporting Information, and the linearity of the Randles–Sevcik plot ( I p α v 1/2 ) between 10 and 500 mV s –1 confirm the reversible electrochemistry of [FcNTf](Figure S7). FTO transparent electrode was compared to Pt, and the CVs employing different working electrodes show that FTO has good catalytic properties for both the [FcNTf] anion and the viologen (Figure S8).…”

Section: Resultsmentioning

confidence: 99%

“…The time-dependent current responses of the forward potential steps using Shoup and Szabo fitting (eq 1) are presented in Figure 3A, and coefficients of 1.65, 1.01, and 2.12 × 10 −7 cm 2 s −1 were found for The diffusion coefficient of [FcNTf] anion in IL medium is 1 order of magnitude lower than in acetonitrile (1.03 × 10 −6 cm 2 s −1 ). 40…”

Section: Electrochemical and Transport Properties [Fcntf] And [Ev] In Ilmentioning

confidence: 99%

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Air-Stable, Self-Bleaching Electrochromic Device Based on Viologen- and Ferrocene-Containing Triflimide Redox Ionic Liquids

Gélinas

Das

Rochefort

2017

ACS Appl. Mater. Interfaces

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103

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We demonstrate an electrochromic device with self-bleaching ability that uses ethyl viologen- ([EV]) and ferrocene-based redox ionic liquids ([FcNTf]) as the electroactive species. These electroactive compounds are insensitive to atmospheric O and HO in both their oxidized and reduced states once dissolved in a typical ionic liquid electrolyte ([BMIm][NTf]), allowing for the device to be assembled outside a glovebox without any encapsulation. This device could generate a deep blue color by the application of a 2.0 V potential between two fluorine-doped tin oxide (FTO) substrates to oxidize the ferrocenyl centers to [FcNTf] while reducing viologen to [EV]. Self-bleaching occurs at OCP as [EV] and [FcNTf] undergo homogeneous electron transfer in the electrolyte. The mass transport of ethyl viologen and ferrocenylsulfonyl(trifluoromethylsulfonyl)imide ([FcNTf]) anion was evaluated by double potential step chronoamperometry to study the impact of the diffusion coefficient on the self-bleaching mechanism. The electrochromic device demonstrated here shows a contrast ΔT (610 nm) around 40% at 2.0 V as colored cell voltage, a switching time in the order of few seconds for coloration and bleaching, coloration efficiency of 105.4 to 146.2 cm C at 610 nm, and very high stability (94.8% ΔT after 1000 cycles) despite the presence of O and HO in the electrolyte.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Electrochemical and Transport Properties [Fcntf] And [Ev] In Ilmentioning

confidence: 99%

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Air-Stable, Self-Bleaching Electrochromic Device Based on Viologen- and Ferrocene-Containing Triflimide Redox Ionic Liquids

Gélinas

Das

Rochefort

2017

ACS Appl. Mater. Interfaces

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103

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“…Most recently, sulfonamide modified ferrocenes have been explored as components of electroactive ionic liquids. 43 …”

Section: Resultsmentioning

confidence: 99%

The synthesis and structures of 1,1′-bis(sulfonyl)ferrocene derivatives

et al. 2016

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A series of 1,1′-bis(sulfonyl)ferrocene compounds were produced via the 1,1′-bis(sulfonate)ferrocene ammonium salt. This compound can be readily converted to 1,1′ bis(sulfonylchloride)ferrocene. Varying stoichiometry and reaction times, both mono- and bis-sulfonamide derivatives can be synthesized. All new compounds presented in this report have been structurally characterized. The structures of the bis-sulfonamide systems are similar to the well-studied bis(amide) ferrocene compounds. Intermolecular hydrogen bonding is observed, typically between NH and SO groups of neighboring sulfonamides. However in the bis(GABA) derivative, intermolecular NH to CO hydrogen bonding interactions are present.

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“…with low melting point below 100 C. [18][19][20][21] By virtue of this property, ionic liquids have gained widespread applications in DSCs led as solvents in liquid electrolytes and organic salts in quasi-solid-state electrolytes. [22][23][24][25][26][27] 1-Hexyl-3methylimidazolium iodide was rstly used in DSCs by Papageorgiou's group with the aim of reducing the volatility of electrolyte. 28 However, the traditional 1-alkyl-3methylimidazolium iodide is too viscous and the high concentration of iodide preventing them from the practical application of DSCs.…”

Section: Introductionmentioning

confidence: 99%

1-Alkenyl-3-methylimidazolium trifluoromethanesulfonate ionic liquids: novel and low-viscosity ionic liquid electrolytes for dye-sensitized solar cells

Nguyen

Nguyễn

et al. 2018

RSC Adv.

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Synthesis and characterization of an electroactive ionic liquid based on the ferrocenylsulfonyl(trifluoromethylsulfonyl)imide anion

Cited by 22 publications

References 52 publications

Air-Stable, Self-Bleaching Electrochromic Device Based on Viologen- and Ferrocene-Containing Triflimide Redox Ionic Liquids

Air-Stable, Self-Bleaching Electrochromic Device Based on Viologen- and Ferrocene-Containing Triflimide Redox Ionic Liquids

The synthesis and structures of 1,1′-bis(sulfonyl)ferrocene derivatives

1-Alkenyl-3-methylimidazolium trifluoromethanesulfonate ionic liquids: novel and low-viscosity ionic liquid electrolytes for dye-sensitized solar cells

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