Amylopectin-rich starch plasticized with glycerol for polymer electrolyte application

Marcondes, Rozely F.M.S.; D'agostini, Páblia S; Ferreira, Jaqueline Campos Lopes; Girotto, Emerson M.; Pawlicka, Agnieszka; Dragunski, Douglas Cardoso

doi:10.1016/j.ssi.2010.03.016

Cited by 72 publications

(21 citation statements)

References 35 publications

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“…The fitted value of the E a for the electrolyte based on 1-ethyl-3-methylimidazolium acetate is 24.27 K·J·mol -1 . This is smaller than those reported by Raphael et al [6] for agar-acetic acid-based electrolytes or other natural macromolecules [31,32,34]. The E a values decrease with the addition of ILs and this is in agreement with the fact that the amount of ions in polymer electrolyte increases, and the energy barrier to the ion transport decreases, leading to a decrease in the activation energy.…”

Section: Ionic Conductivity Of Electrolytessupporting

confidence: 67%

Investigation of polymer electrolyte based on agar and ionic liquids

Leones¹,

Sentanin²,

Rodrigues³

et al. 2012

Express Polym. Lett.

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Abstract. The possibility to use natural polymer as ionic conducting matrix was investigated in this study. Samples of agarbased electrolytes with different ionic liquids were prepared and characterized by physical and chemical analyses. Samples of solvent-free electrolytes were prepared and characterized by ionic conductivity measurements, thermal analysis, electrochemical stability, X-ray diffraction, scanning electron microscopy and Fourier Transform infrared spectroscopy. Electrolyte samples are thermally stable up to approximately 190°C. All the materials synthesized are semicrystalline. The electrochemical stability domain of all samples is about 2.0 V versus Li/Li + . The preliminary studies carried out with electrochromic devices (ECDs) incorporating optimized compositions have confirmed that these materials may perform as satisfactory multifunctional component layers in the field of 'smart windows', as well as ECD-based devices.

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Section: Ionic Conductivity Of Electrolytessupporting

confidence: 67%

Investigation of polymer electrolyte based on agar and ionic liquids

Leones¹,

Sentanin²,

Rodrigues³

et al. 2012

Express Polym. Lett.

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“…The quantity of materials added is expressed as weight percent (wt.%) and the designation of the samples are as tabulated in Table 1. Appropriate amounts of corn starch, LiPF 6 and BmImTf were dissolved in distilled water. The solution was then stirred overnight at 80°C.…”

Section: Preparation Of Thin Filmsmentioning

confidence: 99%

“…Starch is an abundant, renewable and biodegradable raw material with low price [4]. Other unique properties are excellent thermal and steel adhesion properties, superior biocompatibility, good solubility, high recrystallization stability of the amorphous phase and great ability to form films [5][6][7]. In this present work, lithium hexafluorophosphate (LiPF 6 ) was chosen because of its good environmental impacts, high solubility and high conductivity in various solvents [8].…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of lithium ion conducting ionic liquid-based biodegradable corn starch polymer electrolytes

Liew

Ramesh

Arof

2012

J Solid State Electrochem

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Thin films of biodegradable corn starch-based biopolymer electrolytes were prepared by solution casting technique. Lithium hexafluorophosphate (LiPF 6 ) and 1-butyl-3-methylimidazolium trifluoromethanesulfonate (BmImTf) were employed as lithium salt and ionic liquid, respectively. With reference to the temperature dependence study, Arrhenius relationship was observed. The highest ionic conductivity of (6.00 ± 0.01) × 10 −4 S cm −1 was obtained at 80°C. Based on x-ray diffraction (XRD) result, the peaks became broader with doping of ionic liquid revealing the higher amorphous region of the biopolymer electrolytes. Ionic liquid-based biopolymer electrolytes exhibited lower glass transition temperature (T g ).

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“…The ionic conductivity as a function of time for amylopectin-rich starch plasticized with 30 wt% of glycerol and containing [O]/[Li]¼10 showed conduction stability over 6 months (s∼3.01 Â 10 À 5 S cm À 1 ). These results show that it has the potential to meet all the conditions required by optical and electronic devices which use an electrolyte layer [265]. Lopes et al investigated the NMR and conductivity results of solid electrolyte systems based on amylopectin rich starch plasticized with glycerol and containing LiClO 4 .…”

Section: Batteries Using Biopolymer Electrolytesmentioning

confidence: 98%

Perspectives for solid biopolymer electrolytes in dye sensitized solar cell and battery application

Singh¹,

Polu²,

Bhattacharya³

et al. 2016

Renewable and Sustainable Energy Reviews

121

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a b s t r a c tPhotovoltaic technologies represent one of the leading research areas of solar energy which is one of the most powerful renewable alternatives of fossil fuels. In a common photovoltaic application the batteries play a key role in storage of energy generated by solar panels. Although it will take time for dye sensitized solar cells (DSSCs) and batteries based on biopolymer electrolytes to take their places in the market, laboratory studies prove that they have a lot to offer. Most efficient DSSCs and batteries available in market are based on liquid electrolytes. The advantages of liquid electrolytes are having high conductivity and good electrode-electrolyte interface whereas, disadvantages like corrosion and evaporation limit their future sustainability. Biopolymer electrolytes are proposed as novel alternatives which may overcome the problems stated above. In this review, we focus on fabrication, working principle as well as up to date status of DSSCs and batteries using biopolymer electrolytes. The effects of structural and electrical properties of biopolymer based electrolytes on the solar energy conversion efficiencies of DSSCs and their compatibility with lithium or other salts in battery applications are summarized. Biopolymer electrolyte based DSSCs are categorized on the basis of types of additives and recent outcomes of author's laboratory studies on biopolymer electrolyte based DSSCs and batteries are also presented.

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Amylopectin-rich starch plasticized with glycerol for polymer electrolyte application

Cited by 72 publications

References 35 publications

Investigation of polymer electrolyte based on agar and ionic liquids

Investigation of polymer electrolyte based on agar and ionic liquids

Preparation and characterization of lithium ion conducting ionic liquid-based biodegradable corn starch polymer electrolytes

Perspectives for solid biopolymer electrolytes in dye sensitized solar cell and battery application

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