Development of novel pectin based membranes as proton conducting material

Mishra, Rakesh K.; Datt, M.; Banthia, A. K.; Majeed, Abu Bakar Abdul

doi:10.1007/s12588-012-9031-7

Cited by 29 publications

(7 citation statements)

References 21 publications

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“…8 Additionally, since pectin has many functional groups, such as a carboxyl group, pectin can immobilize various molecules in these groups. 7,[9][10][11] As a result, the pectin derivative with a functional group has been reported to be utilized as a proton and ion conductors at room temperature under humidified conditions. [9][10][11][12] The polymer electrolyte fuel cell (PEFC), which generates electric power from hydrogen and oxygen and produces water as the product, is one of the clean energy conversion systems.…”

Section: Introductionmentioning

confidence: 99%

“…7,[9][10][11] As a result, the pectin derivative with a functional group has been reported to be utilized as a proton and ion conductors at room temperature under humidified conditions. [9][10][11][12] The polymer electrolyte fuel cell (PEFC), which generates electric power from hydrogen and oxygen and produces water as the product, is one of the clean energy conversion systems. Especially, the PEFC operation at intermediate temperatures (100-2008C) has been considered to provide many advantages, such as an improved CO tolerance of the platinum electrode, higher energy efficiency, and cogeneration.…”

Section: Introductionmentioning

confidence: 99%

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Anhydrous proton conductor consisting of pectin–inorganic composite material

Yamada

Ogino

2015

J of Applied Polymer Sci

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An organic-inorganic proton conductive composite material consisting of a biopolymer was prepared by mixing the pectin, tetraethyl titanate, and imidazole. Although the pectin material without the composite dissolved in water, the pectin-inorganic composite material did not show water solubility. In addition, in the composite material, the pectin and imidazole formed an acidbase structure by an electrostatic interaction, and as a result, these composite materials showed a thermal stability at intermediate temperatures (100-2008C). Furthermore, these composite materials indicated the proton conductivity of 5.6 3 10 24 S cm 21 at 1808Cunder anhydrous conditions. The activation energy of the proton conduction under anhydrous conditions was 0.32-0.22 eV and these values were one order of magnitude higher than that of the typical humidified perfluorinated membrane, such as Nafion V R . The organic-inorganic composite material consisting of a biocomponent may have the potential to be utilized as a novel proton conductor under anhydrous conditions.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Anhydrous proton conductor consisting of pectin–inorganic composite material

Yamada

Ogino

2015

J of Applied Polymer Sci

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“…29 There is a shifting which occurs by the addition of NaCl. The band which is observed at 1739 cm À1 , 1620 cm À1 , 1441 cm À1 , 1371 cm À1 , 1143 cm À1 , 1092 cm À1 and 1013 cm À1 are due to the stretching of ionized carboxymethyl groups of COOCH 3 , asymmetric stretching vibration of the carbonyl group of the carboxylate ion (COOÀ), vibrations of the O=C-O, -OH bending, -CH-OH in aliphatic cyclic secondary alcohol, C-O-C stretching and to -CH-O CH stretching vibration [30][31][32][33][34] of pure pectin. The variations of these band assignments due to the incorporation of NaCl are listed in Table 1.…”

Section: Ftirmentioning

confidence: 99%

“…Charge storage of the polymer electrolyte materials and the polarity setback of applied electric field cause the energy loss owing to the ion dynamics are dealt by the dielectric constant and dielectric loss studies. 33 The dipoles relaxation in the polymer electrolytes at room temperature are analysed throughout the frequency range of 42 Hz to 1 MHz. Charges are accumulated at small frequency to reach the high value of both dielectric constant and dielectric loss owing to the polarization of electrode and it approaches the steady value at high frequency region because there is no time for the dipoles alignment when the periodic reversal of the electric field occurs at a fast rate.…”

Section: Dielectric Studiesmentioning

confidence: 99%

Optical and dielectric characterization of biopolymer pectin based electrolytes with NaCl

Jothi¹,

Vanitha

Nallamuthu

et al. 2022

Journal of Elastomers & Plastics

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Biopolymer pectin based polymer electrolytes with sodium chloride (NaCl) were prepared by solution casting method. Semi crystalline nature of pectin is reduced to reach the amorphous nature by addition of NaCl salt,investigated by X-ray diffraction analysis and XRD deconvolution technique. Investigation of FTIR and FTIR deconvolution exposed the occurrence of complexation and increment of free ion by addition of NaCl. The shifting of UV absorbance band of pectin demonstrates the optical properties of the prepared polymer electrolytes. Optical bandgap of pectin polymer electrolyte was decreased from 3.13 eV to 2.98 eV due to the electrons transition from valence band to conduction band. The measurements of dielectric constants were conceded out on these films in the frequency range 42–106 Hz from 303K to 373 K. From all these characterisation, 3 wt.% of NaCl doped polymer-salt complex system performed well.

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“…The plasticized pectin and LiClO 4 -based gel electrolytes were prepared and analyzed by spectroscopic, thermal, structural, and microscopic analyses. The best ionic conductivity values of 2.536 Â 10 À 2 S/cm were obtained at room temperature for the composition based on diethanolamine modified pectin (DAP) and glutaraldehyde (GA) dissolved in pectin based biopolymer electrolyte [133].…”

Section: Pectinmentioning

confidence: 99%

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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Development of novel pectin based membranes as proton conducting material

Cited by 29 publications

References 21 publications

Anhydrous proton conductor consisting of pectin–inorganic composite material

Anhydrous proton conductor consisting of pectin–inorganic composite material

Optical and dielectric characterization of biopolymer pectin based electrolytes with NaCl

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

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