Wheat starch + NaI: a high conducting environment friendly electrolyte system for energy devices

Yadav, Monika; Kumar, Manindra; Tiwari, Tuhina; Srivastava, Neelam

doi:10.1007/s11581-016-1930-8

Cited by 18 publications

(15 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Polymer-salt complex have very complex behavior where addition of salt not only gives the charge carrier to the system but simultaneously plasticizes the polymer matrix [12]. It should also be noted that addition of salt breaks the starch molecules to smaller weight molecules resulting in greater amorphicity [13] resulting in more salt interacting sites to accommodate the greater amount of salt. Performance of polymer-salt electrolytes are affected by salt concentration in two ways (i) salt concentration decides the number of charge carriers and (ii) it also give plasticization effect.…”

Section: Effect Of Salt and Temperature On Conductivitymentioning

confidence: 99%

NaClO4 added, corn and arrowroot starch based economical, high conducting electrolyte membranes for flexible energy devices

et al. 2020

Self Cite

View full text Add to dashboard Cite

The increasing flexible and wearable electronic technology, demands cost effective and flexible energy devices which are safe to human body. Hence the benign biodegradable materials are becoming important class of materials for wearable energy devices. Starch is one such potential host renewable polymer which is abundant in nature and economical. Being a food ingredient, it is safe for human body. Its properties depends upon the amylose and amylopectin content in it and hence two different starches, corn (~ 27% amylose) and arrowroot (~ 15% amylose) are modified by sodium salt (NaClO 4 ) and glutaraldehyde to develop flexible, transparent and free standing electrolyte membranes with high conductivity (> 10 -3 S/cm). They have wide electrochemical stability window (> 2 V reaching upto 3.5 V) and low ESR. The relaxation time is of the order of µs and the cyclic voltammetry has indicated EDLC type of charge storage. At low frequency, the values of C p /C s are approaching to 1, indicating that all the available charges are polarizable and contributing to charge storage. The resonance frequency and frequency (f −45°) at which phase angle is −45°, are in kHz frequency range, i.e. the working frequency range is quite high. Electrolytes having corn starch (i.e. greater amount of amylose) have better performance on every electrochemical figure of merit.

show abstract

Section: Effect Of Salt and Temperature On Conductivitymentioning

confidence: 99%

NaClO4 added, corn and arrowroot starch based economical, high conducting electrolyte membranes for flexible energy devices

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…Real part of capacitance indicates the storage of ions while imaginary part is associated with the energy loss in the polymer electrolyte [86]. The variation of the real and imaginary part of capacitance is shown on Figure 14 the polymer flexible that promotes the faster ion migration from one coordinating site to another.…”

Section: Modulus Studymentioning

confidence: 99%

Tailoring the Structural, Morphological, Electrochemical, and Dielectric Properties of Solid Polymer Electrolyte

Arya¹

2018

Preprint

View full text Add to dashboard Cite

Abstract:Herein, we present preparation of solid polymer electrolyte (SPE) comprising of PEO, NaPF6 and varying fraction of Succinonitrile (SN) by standard solution cast technique. The morphological features and structural properties were studied by the FESEM, XRD, respectively. FTIR was performed to study the interactions between polymer host, salt, and SN. Impedance spectroscopy, Transference number measurements, LSV and CV were used to examine the electrochemical properties. The complex permittivity/conductivity & modulus were studied to understand the dielectric properties by evaluating the dielectric strength, relaxation time, hopping frequency and dc conductivity. Based on the experimental results an interaction mechanism is presented.

show abstract

“…In the synthesis of starch‐salt complexes, salt concentration plays an important role in deciding the electrochemical parameters as well as the physique of the membrane. In our previous studies, it has been noted that although the moisture content at higher salt concentration is much higher than what was observed at low salt concentration, the absorbed water could not easily be electrolyzed as it was observed for low salt concentration . Since for MFC fabrication, the membrane should support higher proton conduction and hence it was important to understand that how the salt concentration is effecting membrane behavior in MFC configuration.…”

Section: Introductionmentioning

confidence: 96%

“…In our previous studies, it has been noted that although the moisture content at higher salt concentration is much higher than what was observed at low salt concentration, the absorbed water could not easily be electrolyzed as it was observed for low salt concentration. [20] Since for MFC fabrication, the membrane should support higher proton conduction and hence it was important to understand that how the salt concentration is effecting membrane behavior in MFC configuration. Hence in present work, 10 different starch-salt complexes have been prepared and characterized after that two membranes (one having the lowest concentration and other one highest concentration) have been utilized for MFC fabrication.…”

Section: Introductionmentioning

confidence: 99%

Study of Arrowroot Starch‐Based Polymer Electrolytes and Its Application in MFC

et al. 2019

Self Cite

View full text Add to dashboard Cite

Microbial fuel cell (MFC), a biochemical‐catalyzed system which generates electricity by oxidizing biodegradable organic matter in the presence of either fermentative bacteria or enzymes, is a growing technology for electricity generation. It is a dual functioning technology which not only generates electricity but also treats wastewater, thereby addressing two major problems of the present world. As the technology is an emerging one, there are numerous challenges to be confronted. One of the vital components of the MFC is the proton exchange membrane (PEM), and it is due to the high cost of this membrane that MFC technology is still running at laboratory scale. In the present study, a starch‐based electrolyte film is used as PEM. Electrochemical behavior exhibited by the starch electrolyte is studied and on using it as PEM in MFC it is found to exhibit power density of ≈16 mW m−2 and the current density of ≈85 mA m−2. One of the main advantages of the material is its cost which is approximately INR ≈940 per square foot compared to INR 70 000 per square foot of Nafion (the most popular membrane).

show abstract

Wheat starch + NaI: a high conducting environment friendly electrolyte system for energy devices

Cited by 18 publications

References 35 publications

NaClO4 added, corn and arrowroot starch based economical, high conducting electrolyte membranes for flexible energy devices

NaClO4 added, corn and arrowroot starch based economical, high conducting electrolyte membranes for flexible energy devices

Tailoring the Structural, Morphological, Electrochemical, and Dielectric Properties of Solid Polymer Electrolyte

Study of Arrowroot Starch‐Based Polymer Electrolytes and Its Application in MFC

Contact Info

Product

Resources

About