Eco-friendly biopolymer electrolyte, pectin with magnesium nitrate salt, for application in electrochemical devices

Kiruthika, S.; Malathi, M.; Selvasekarapandian, S.; Tamilarasan, K.; Moniha, V.; Manjuladevi, R.

doi:10.1007/s10008-019-04313-6

Cited by 46 publications

(24 citation statements)

References 43 publications

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“…The conductance spectra of gellan gum with different concentration of MgCl 2 as shown in the gure (11). In conductance spectra extrapolating the mid frequency plateau to log σ axis the DC conductivity value is obtained [25]. There is a good agreement with the DC conductivity value obtained from the conduction spectra and Cole-Cole plot.…”

Section: Conductance Spectra Analysissupporting

confidence: 60%

“…reported the transference number of Mg 2+ ions as 0.26 for the sample of K-Carrageenan with MgCl 2 .Shanmugapriya et al[29] prepared a biopolymer I-Carrageenan with magnesium perchlorate and reported the Mg 2+ ions transference number as 0.313. Kiruthika et al[30] reported transference number for Mg 2+ ions as 0.29 for the sample of pectin with magnesium nitrate.…”

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confidence: 99%

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Biopolymer Electrolyte Based on Gellan Gum With Magnesium Chloride for Magnesium Battery

Krishna¹,

Rm²,

Monisha³

2021

Preprint

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Eco-Friendly, non-toxic and biodegradable natural biopolymer electrolyte, Gellan Gum with Magnesium Chloride has been prepared by solution casting technique. The prepared biopolymer electrolyte has been characterized by XRD, FTIR, DSC and AC impedance analysis techniques. XRD study is used to analyze amorphous nature/crystalline nature of the polymer electrolyte. Complex formation between Gellan Gum and magnesium chloride salt has been studied by FTIR technique. The glass transition temperature (Tg) of the polymer electrolytes are obtained by DSC measurement. The highest ionic conductivity 2.91×10− 2 Scm− 1 has been obtained for electrolyte of 1.0 g Gellan Gum with 0.5 M.wt% MgCl2 from AC impedance analysis at room temperature. Transference number 0.97 has been obtained by Wagner’s polarization method for high conducting sample. The Mg2+ cationic transport number 0.35 has been found by Evan’s method for high conducting sample. Magnesium ion conducting battery has been constructed using the high conducting polymer electrolyte. Its open circuit voltage 2.39 V and the battery discharge characteristics are studied.

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Section: Conductance Spectra Analysissupporting

confidence: 60%

mentioning

confidence: 99%

Biopolymer Electrolyte Based on Gellan Gum With Magnesium Chloride for Magnesium Battery

Krishna¹,

Rm²,

Monisha³

2021

Preprint

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“…RG-II has a backbone of HG with complex and conservative side chains attached to the GalA residues [23]. XGA has a backbone of HG with xylopyranose as side chains attached to C-3 of GalA residues [24]. With different proportions of carbomethoxy [25], it could be divided into high-methoxyl pectin (HMP, DM > 50%) and low-methoxyl pectin (LMP, DM < 50%).…”

Section: Introductionmentioning

confidence: 99%

The Film-Forming Characterization and Structural Analysis of Pectin from Sunflower Heads

Peng

Yang

et al. 2021

International Journal of Polymer Science

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A natural low-methoxyl pectin (termed AHP, DM = 25.9 % ) was extracted from dried heads of sunflower and showed better film-forming performance blended with hydroxypropyl methylcellulose (HPMC). The solutions and films of different HPMC/AHP blends were characterized by viscosity, transparency, mechanical properties, loss on drying, water drop penetration time (WDPT), disintegration and SEM. In order to analyze the structure-property relationship of film forming, AHP was separated by ion-exchange chromatography and characterized. The results showed that the blends were immiscible, but the formation of AHP gel would give the blended film better mechanical properties. AHP was fractionated into one neutral fraction and two acidic fractions (AHPA-1 and AHPA-2). The analytical results showed that AHPA-1 and AHPA-2 were identified to be homogalacturonan- (HG-) rich pectins with low DM, and the molecular weights of them were estimated to be 106 kDa and 226 kDa, respectively. Due to the high content of the HG domain, low DM and high molecular weights, AHP had excellent gelling properties induced by Ca2+ and was added to improve the film-forming properties of HPMC and to develop plant hollow capsules.

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“…Furthermore, it has been indicated incomplete dissociation of leaf extract in sodium alginate through the recrystallization process while adding on leaf extract. These characters are may restrict the motion of ions in the electric eld [15]. Thus from XRD data, we can understand sodium alginate well connected to Withania somnifera leaf extract via ionic bonding.…”

Section: Xrd Analysismentioning

confidence: 98%

Electrical and Electrochemical Characteristics of Withania somnifera Leaf Extract Incorporation Sodium Alginate Polymer Film for Energy Storage Applications

Chinnaiah

Theivashanthi

Kannan

et al. 2021

J Inorg Organomet Polym

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The current investigation address the Alternating current (AC) electrical properties, electrochemical characteristics on biopolymer as Withania somnifera leaf extract incorporated sodium alginate polymer lm prepared by solution casting method. Some crystallinity along with amorphous nature of sodium alginate emerged due to the incorporation of Withania somnifera leaf extract. The more amount of strain occurred in crystallization provides broaden peak in X-ray Diffraction (XRD) pattern. With aid of guluronic and mannuronic acids in sodium alginate making hydroxyl bond formation with leaf extract due to the cross linking process can be analyzed from Fourier transform Infrared Spectroscopy (FTIR). At room temperature, the prepared 5 ml of leaf extract incorporated sodium alginate lm has demonstrated highest ionic conductivity in the typical value of 2.80×10 -6 S/Cm. The electrochemical window of the prepared polymer lm in the range of -0.4 to 0.4 V suggesting that used as an electrolyte for supercapacitor applications.

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Eco-friendly biopolymer electrolyte, pectin with magnesium nitrate salt, for application in electrochemical devices

Cited by 46 publications

References 43 publications

Biopolymer Electrolyte Based on Gellan Gum With Magnesium Chloride for Magnesium Battery

Biopolymer Electrolyte Based on Gellan Gum With Magnesium Chloride for Magnesium Battery

The Film-Forming Characterization and Structural Analysis of Pectin from Sunflower Heads

Electrical and Electrochemical Characteristics of Withania somnifera Leaf Extract Incorporation Sodium Alginate Polymer Film for Energy Storage Applications

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