Impact of insoluble starch remnants on the behavior of corn starch/glycerol/LiCl solid electrolyte

Roldan-Cruz, C.; García-Hernández, A.; Vernon‐Carter, E.J.; Alvarez-Ramı́rez, José

doi:10.1007/s11581-017-2014-0

Cited by 10 publications

(5 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, a tiny intense band of the C–H stretching vibration is positioned at 2927 cm –1 , which may be overlapped with the OH peak of the water in the sample. , The shaded absorption peaks at 1153 and 1022 cm –1 are related to C–O stretching vibrations of the glyosidic bond in starch hydrogels and assigned to ordered and amorphous contents of starch, respectively. The interaction of the Li cation with starch chain may induce a slight shift in the absorption bands. ,, The FTIR spectra and FESEM images of the starch powder as well as fresh and dried gel samples with and without 2-LiCl salt are depicted in Figures S1, S2, and S3. The spectra of the fresh and dried 2-LiCl@starch gels are almost the same except for the absorption band at ∼3420 cm –1 .…”

Section: Results and Discussionmentioning

confidence: 99%

“…The interaction of the Li cation with starch chain may induce a slight shift in the absorption bands. 32,46,47 The FTIR spectra and FESEM images of the starch powder as well as fresh and dried gel samples with and without 2-LiCl salt are depicted in Figures S1, S2, and S3. The spectra of the fresh and dried 2-LiCl@starch gels are almost the same except for the absorption band at ∼3420 cm −1 .…”

Section: ■ Results and Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Environmentally Benign Natural Hydrogel Electrolyte Enables a Wide Operating Potential Window for Energy Storage Devices

El Sharkawy,

Ismail,

Allam

2024

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

The development of energy-efficient storage platforms is of paramount importance. Specifically, wearable, smart, flexible, and portable electronic devices with small size, lightweight, and high safety are of urgent need for several applications. To achieve these criteria, green, sustainable, nonflammable, and biodegradable hydrogel electrolytes are essential. To this end, we developed a LiCl@starch-based hydrogel via readily gelatinization of starch. The ionic conductivity of the synthesized gel was tuned via controlled variation of the LiCl content, as revealed by the electrochemical impedance spectroscopy (EIS) measurements. The developed starch gel network with 2 M LiCl showed ultrahigh ionic conductivity of 0.079 S•cm −1 with excellent thermal stability and nonflammability. The rheological characteristics are aligned with enhanced ionic conductivity. Using the commercially available activated carbon (AC), the assembled supercapacitor symmetric device (AC//2-LiCl@starch//AC) withstands a wide operating voltage window of 2.4 V with outstanding specific capacitance (62.3 F/g), energy density, and reliable self-discharge time. These findings imply that this quasi-solid biopolymer gel can be a viable electrolyte for various energy storage devices.

show abstract

Section: Results and Discussionmentioning

confidence: 99%

Section: ■ Results and Discussionmentioning

confidence: 99%

Environmentally Benign Natural Hydrogel Electrolyte Enables a Wide Operating Potential Window for Energy Storage Devices

El Sharkawy,

Ismail,

Allam

2024

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

show abstract

“…Scanning electron microscopy (SEM) was performed as indicated in . Starch film samples were mounted on carbon sample holders using double‐sided sticky tape and observed using a JEOL JMS 7600F scanning electron microscope (Jeol Ltd., Akishima, Japan) with the LM mode at 15.0 kV accelerating voltage.…”

Section: Methodsmentioning

confidence: 99%

Films from corn, wheat, and rice starch ghost phase fractions display overall superior performance than whole starch films

Gómez-Luría¹,

Vernon‐Carter²,

Alvarez-Ramı́rez³

2017

Starch Stärke

View full text Add to dashboard Cite

In a previous study, gelatinized corn starch dispersions (GSD) containing different (∼7–59.6%) ghost phase fractions (GPF), i.e., insoluble amylopectin‐rich remnants with glycerol added as plasticizer were cast and dried to obtain films. GPF had both positive and negative effects on the films’ properties, but GPF of around 20–30%, provided films with good and balanced overall properties ((elongation‐at‐break (EB), ultimate tensile strength (UTS), opacity, and water vapor permeability (WVP)). Here, corn, wheat, and rice GSD were prepared containing GPF of 63.6, 61.3, and 58.2%. The GPF was separated from GSD, and films were prepared with solely the GPF and with the whole GSD. Ghost phase fraction films (GPFF) exhibited higher hydrophobicity and EB, lower WVP and retrogradation than those obtained from the whole gelatinized starch dispersion films (GSDF), with only UTS exhibiting lower values. It was postulated that the underlying reason for the improved overall performance displayed by the GPFF was that they practically did not retrograde, due to the depletion of the amylose‐rich viscous continuous phase, and that the ghosts played an important role as physical fillers imparting elasticity and as physical barriers hindering the transport of water. The ghosts’ particle size and concentration affected the surface morphology, accounting for the differences in properties found between the corn, wheat, and rice GPFF.

show abstract

“…Therefore, solid polymer electrolyte based on corn starch has been investigated. [135][136][137][138]31 Lin et al fabricated a novel solid polymer electrolyte film using corn starch. 31 Figure 13a shows the fabrication process.…”

Section: Batteriesmentioning

confidence: 99%

“…Corn starch consists of repeating glucose monomers joined by glycosidic linkages shaping a stable helix structure, beneficial for the reversible transportation of ions. Therefore, solid polymer electrolyte based on corn starch has been investigated. − , …”

Section: Corn-mediated Solid Polymer Electrolyte For Solid-state Batt...mentioning

confidence: 99%

Innovative and Economically Beneficial Use of Corn and Corn Products in Electrochemical Energy Storage Applications

Jin

et al. 2021

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

The United States is by far the largest corn producer worldwide, with corn yields steadily increasing for the past decades. In many midwestern U.S. states such as Iowa, Illinois, and Nebraska, corn farmers currently grow more corn than consumers can utilize as human food or animal feed. To sustain the economic viability of corn farmers, it is critical that new uses and markets for corn, corn byproducts from harvesting, corn industrial products, and corn byproducts from industrial processing should be discovered, giving the highest return to corn producers. With the increasing popularity of electric vehicles and grid-level energy storage systems for renewable energy, there has been an evergrowing interest in improving existing energy storage technologies as well as developing new ones. During this development, a great amount of effort has been focused on exploiting cost-effective solutions utilizing sustainable materials derived from renewable biomass. In this Perspective, innovative and economically beneficial uses of corn and corn products in various energy storage applications, such as lithium-ion batteries, solid-state batteries, and redox flow batteries, are looked at comprehensively, which may shed light on how to establish an environmentally sustainable, technically feasible, and economically beneficial solution to support the corn industry.

show abstract

Impact of insoluble starch remnants on the behavior of corn starch/glycerol/LiCl solid electrolyte

Cited by 10 publications

References 42 publications

Environmentally Benign Natural Hydrogel Electrolyte Enables a Wide Operating Potential Window for Energy Storage Devices

Environmentally Benign Natural Hydrogel Electrolyte Enables a Wide Operating Potential Window for Energy Storage Devices

Films from corn, wheat, and rice starch ghost phase fractions display overall superior performance than whole starch films

Innovative and Economically Beneficial Use of Corn and Corn Products in Electrochemical Energy Storage Applications

Contact Info

Product

Resources

About