Sulfated Cellulose/Polyvinyl Alcohol Composites as Proton Conducting Electrolyte for Capacitors

Boor Singh Lalia; Maitha Alkaabi; Raed Hashaikeh

doi:10.1016/j.egypro.2015.07.167

Sulfated Cellulose/Polyvinyl Alcohol Composites as Proton Conducting Electrolyte for Capacitors

Boor Singh Lalia, Maitha Alkaabi, Raed Hashaikeh

Mechanical Engineering

Research output: Contribution to journal › Conference article › peer-review

Abstract

Supercapacitors are attractive devices for energy storage because of their high power density. Electrolytes are important components in supercapacitors because their electrochemical properties directly influence the performance and the internal resistance of the capacitor. In this work, cellulose was modified to be used as an electrolyte. Sulfated cellulose (SC) was prepared by esterification of micro-crystalline cellulose and characterized by elemental analysis, gel permeation chromatography and x-ray diffraction. The sulfated cellulose was dispersed in polyvinyl alcohol (PVA) solution to fabricate a proton conducting electrolyte. The SC/PVA (85:15% w/w) film activated with 0.25 M H₂SO₄ show high ionic conductivity of 2.5 x 10^-1 S/cm and specific capacitance of 96 F/g at 25^oC. In the charge-discharge curves, a low internal resistance was observed for SC/PVA electrolyte as compared to the acidic solution electrolyte.

Original language	English (US)
Pages (from-to)	1869-1874
Number of pages	6
Journal	Energy Procedia
Volume	75
DOIs	https://doi.org/10.1016/j.egypro.2015.07.167
State	Published - 2015
Event	7th International Conference on Applied Energy, ICAE 2015 - Abu Dhabi, United Arab Emirates Duration: Mar 28 2015 → Mar 31 2015

Keywords

Sulfated cellulose
cyclic voltammetry
electric double layer capacitor
proton conductivity

ASJC Scopus subject areas

General Energy

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10.1016/j.egypro.2015.07.167

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@article{63c2823908df423fb0921b79feece56b,

title = "Sulfated Cellulose/Polyvinyl Alcohol Composites as Proton Conducting Electrolyte for Capacitors",

abstract = "Supercapacitors are attractive devices for energy storage because of their high power density. Electrolytes are important components in supercapacitors because their electrochemical properties directly influence the performance and the internal resistance of the capacitor. In this work, cellulose was modified to be used as an electrolyte. Sulfated cellulose (SC) was prepared by esterification of micro-crystalline cellulose and characterized by elemental analysis, gel permeation chromatography and x-ray diffraction. The sulfated cellulose was dispersed in polyvinyl alcohol (PVA) solution to fabricate a proton conducting electrolyte. The SC/PVA (85:15% w/w) film activated with 0.25 M H2SO4 show high ionic conductivity of 2.5 x 10-1 S/cm and specific capacitance of 96 F/g at 25oC. In the charge-discharge curves, a low internal resistance was observed for SC/PVA electrolyte as compared to the acidic solution electrolyte.",

keywords = "Sulfated cellulose, cyclic voltammetry, electric double layer capacitor, proton conductivity",

author = "Lalia, {Boor Singh} and Maitha Alkaabi and Raed Hashaikeh",

note = "Publisher Copyright: {\textcopyright} 2015 The Authors. Published by Elsevier Ltd.; 7th International Conference on Applied Energy, ICAE 2015 ; Conference date: 28-03-2015 Through 31-03-2015",

year = "2015",

doi = "10.1016/j.egypro.2015.07.167",

language = "English (US)",

volume = "75",

pages = "1869--1874",

journal = "Energy Procedia",

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publisher = "Elsevier BV",

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T1 - Sulfated Cellulose/Polyvinyl Alcohol Composites as Proton Conducting Electrolyte for Capacitors

AU - Lalia, Boor Singh

AU - Alkaabi, Maitha

AU - Hashaikeh, Raed

PY - 2015

Y1 - 2015

N2 - Supercapacitors are attractive devices for energy storage because of their high power density. Electrolytes are important components in supercapacitors because their electrochemical properties directly influence the performance and the internal resistance of the capacitor. In this work, cellulose was modified to be used as an electrolyte. Sulfated cellulose (SC) was prepared by esterification of micro-crystalline cellulose and characterized by elemental analysis, gel permeation chromatography and x-ray diffraction. The sulfated cellulose was dispersed in polyvinyl alcohol (PVA) solution to fabricate a proton conducting electrolyte. The SC/PVA (85:15% w/w) film activated with 0.25 M H2SO4 show high ionic conductivity of 2.5 x 10-1 S/cm and specific capacitance of 96 F/g at 25oC. In the charge-discharge curves, a low internal resistance was observed for SC/PVA electrolyte as compared to the acidic solution electrolyte.

AB - Supercapacitors are attractive devices for energy storage because of their high power density. Electrolytes are important components in supercapacitors because their electrochemical properties directly influence the performance and the internal resistance of the capacitor. In this work, cellulose was modified to be used as an electrolyte. Sulfated cellulose (SC) was prepared by esterification of micro-crystalline cellulose and characterized by elemental analysis, gel permeation chromatography and x-ray diffraction. The sulfated cellulose was dispersed in polyvinyl alcohol (PVA) solution to fabricate a proton conducting electrolyte. The SC/PVA (85:15% w/w) film activated with 0.25 M H2SO4 show high ionic conductivity of 2.5 x 10-1 S/cm and specific capacitance of 96 F/g at 25oC. In the charge-discharge curves, a low internal resistance was observed for SC/PVA electrolyte as compared to the acidic solution electrolyte.

KW - Sulfated cellulose

KW - cyclic voltammetry

KW - electric double layer capacitor

KW - proton conductivity

UR - http://www.scopus.com/inward/record.url?scp=84947125458&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84947125458&partnerID=8YFLogxK

U2 - 10.1016/j.egypro.2015.07.167

DO - 10.1016/j.egypro.2015.07.167

M3 - Conference article

AN - SCOPUS:84947125458

SN - 1876-6102

VL - 75

SP - 1869

EP - 1874

JO - Energy Procedia

JF - Energy Procedia

T2 - 7th International Conference on Applied Energy, ICAE 2015

Y2 - 28 March 2015 through 31 March 2015

ER -

Sulfated Cellulose/Polyvinyl Alcohol Composites as Proton Conducting Electrolyte for Capacitors

Abstract

Keywords

ASJC Scopus subject areas

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