A novel deep eutectic solvent-based ionic liquid used as electrolyte for dye-sensitized solar cells

Jhong, Huei-Ru “Molly”; Wong, David Shan-Hill; Wan, Chi‐Chao; Wang, Yung-Yun; Wei, Tzu‐Chien

doi:10.1016/j.elecom.2008.11.001

Cited by 290 publications

(151 citation statements)

References 15 publications

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“…DESs are attracting considerable attention in many applications such as catalysts, 1-3 solvents, [4][5][6] electro-plating, 7 purification media 8 and others. 9,10 In many of these applications, the addition of water has little effect upon the chemical properties but significantly improves the mass transport characteristics of the liquids. In the applications listed above water is often added to improve conductivity and aid filtration; the amount of water added often being chosen empirically It has been empirically noted that DESs change their properties to those of ionic solutions when between 5 and 10 wt % water has been added.…”

Section: Introductionmentioning

confidence: 99%

Molecular and ionic diffusion in aqueous – deep eutectic solvent mixtures: probing inter-molecular interactions using PFG NMR

D’Agostino

Gladden

Mantle

et al. 2015

Phys. Chem. Chem. Phys.

218

222

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Pulsed field gradient (PFG) NMR has been used to probe self-diffusion of molecular and ionic species in aqueous mixtures of choline chloride (ChCl) based deep eutectic solvents (DESs), in order to elucidate the effect of water on motion and inter-molecular interactions between the different species in the mixtures, namely the Ch + cation and hydrogen bond donor (HBD). The results reveal an interesting and complex behaviour of such mixtures at a molecular level. In general, it is observed that the hydroxyl protons ( 1 H) of Ch + and the hydrogen bond donor have diffusion coefficients significantly different from those measured for their parent molecules when water is added. This indicates a clear and significant change in inter-molecular interactions. In aqueous Ethaline, the hydroxyl species of Ch + and HBD show a stronger interaction with water as water is added to the system. In the case of Glyceline, water has little effect on both hydroxyl proton diffusion of Ch + and HBD. In Reline, it is likely that water allows the formation of small amounts of ammonium hydroxide. The most surprising observation is from the self-diffusion of water, which is considerably higher that expected from a homogeneous liquid. This leads to the conclusion that Reline and Glyceline form mixtures that are inhomogeneous at a microscopic level despite the hydrophilicity of the salt and HBD. This work shows that PFG NMR is a powerful tool to elucidate both molecular dynamics and inter-molecular interactions in complex liquid mixtures, such as the aqueous DES mixtures.

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Section: Introductionmentioning

confidence: 99%

Molecular and ionic diffusion in aqueous – deep eutectic solvent mixtures: probing inter-molecular interactions using PFG NMR

D’Agostino

Gladden

Mantle

et al. 2015

Phys. Chem. Chem. Phys.

218

222

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“…ChCl/urea is a deep eutectic solvent (DES): a eutectic mixture with a melting point lower than that of its individual components. DESs have comparable physicochemical qualities to ionic liquids, but are much cheaper and more environmentally friendly (Abbott et al 2004;Jhong et al 2009;Zhang et al 2012a). Recyclability of the ChCl/urea was evaluated by studying the recycled solvent after fibre yarn production.…”

Section: Introductionmentioning

confidence: 99%

Method for Forming Pulp Fibre Yarns Developed by a Design-driven Process

Tenhunen¹,

Hakalahti²,

Kouko³

et al. 2016

BioResources

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A simple and inexpensive method for producing water-stable pulp fibre yarns using a deep eutectic mixture composed of choline chloride and urea (ChCl/urea) was developed in this work. Deep eutectic solvents (DESs) are eutectic mixtures consisting of two or more components that together have a lower melting point than the individual components. DESs have been previously studied with respect to cellulose dissolution, functionalisation, and pre-treatment. This new method uses a mixture of choline chloride and urea, which is used as a swelling and dispersing agent for the pulp fibres in the yarn-forming process. Although the pulp seemed to form a gel when dispersed in ChCl/urea, the ultrastructure of the pulp was not affected. To enable water stability, pulp fibres were crosslinked by esterification using polyacrylic acid. ChCl/urea could be easily recycled and reused by distillation. The novel process described in this study enables utilisation of pulp fibres in textile production without modification or dissolution and shortening of the textile value chain. An interdisciplinary approach was used, where potential applications were explored simultaneously with material development from process development to the early phase prototyping.

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“…Ionic liquids are advanced due to their high density, good heat capacity, good thermal and chemical stability and low vapor pressure [13]. The enhancement in thermal conductivity of several ionic liquids ( 4 ]) containing aluminium oxide were reported. Thermal conductivity, specific heat capacity and heat transfer coefficient were increased by 6%, 23% and 20% respectively when 1wt% of Al 2 O 3 nanoparticles were incorporated into ionic liquids [12].…”

Section: Introductionmentioning

confidence: 99%

“…DESs are widely applied for dissolution, catalysis, organic synthesis, electrochemistry and electrolyte [19]. DESs are low cost raw materials, easy in the preparation without purification process, non-toxic and biodegradable [14,4]. The most important is DESs have high mobility and high concentration of carrier ions and it improves ionic conductivity [15].…”

Section: Introductionmentioning

confidence: 99%

Thermally conductive of nanofluid from surfactant doped polyaniline nanoparticle and deep eutectic ionic liquid

Siong¹,

Daik²,

Hamid³

2014

AIP Conference Proceedings

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A novel deep eutectic solvent-based ionic liquid used as electrolyte for dye-sensitized solar cells

Cited by 290 publications

References 15 publications

Molecular and ionic diffusion in aqueous – deep eutectic solvent mixtures: probing inter-molecular interactions using PFG NMR

Molecular and ionic diffusion in aqueous – deep eutectic solvent mixtures: probing inter-molecular interactions using PFG NMR

Method for Forming Pulp Fibre Yarns Developed by a Design-driven Process

Thermally conductive of nanofluid from surfactant doped polyaniline nanoparticle and deep eutectic ionic liquid

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