A Redox-Additive Electrolyte and Nanostructured Electrode for Enhanced Supercapacitor Energy Density

Van Thanh Nguyen; Jyh Ming Ting

doi:10.1021/acssuschemeng.0c05891

A Redox-Additive Electrolyte and Nanostructured Electrode for Enhanced Supercapacitor Energy Density

Van Thanh Nguyen, Jyh Ming Ting

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

We demonstrate an ultrahigh energy density asymmetric supercapacitor (ASC) having a novel NiCo(CO3)(OH)2 nanoneedle positive electrode, Fe2O3/rGO nanocomposite negative electrode, and advanced potassium ferricyanide (K3[Fe(CN)6])/potassium hydroxide (KOH) electrolyte. The electrode materials were synthesized by a hydrothermal technique. The unique positive electrode was first shown to have a remarkable specific capacitance (Csp) of 3248.9 F g-1 at 1 A g-1 in an electrolyte containing 0.06 M K3[Fe(CN)6] and 3 M KOH. The ASC gives a superior energy density of 84.1 W h kg-1 at a power density of 825 W kg-1. The findings in this work provide a very promising approach toward the development of high-performance energy storage devices.

Original language	English
Pages (from-to)	18023-18033
Number of pages	11
Journal	ACS Sustainable Chemistry and Engineering
Volume	8
Issue number	49
DOIs	https://doi.org/10.1021/acssuschemeng.0c05891
Publication status	Published - 2020 Dec 14

All Science Journal Classification (ASJC) codes

Chemistry(all)
Environmental Chemistry
Chemical Engineering(all)
Renewable Energy, Sustainability and the Environment

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1021/acssuschemeng.0c05891

Cite this

@article{f3524ca505724f208a4e9f5a73860625,

title = "A Redox-Additive Electrolyte and Nanostructured Electrode for Enhanced Supercapacitor Energy Density",

abstract = "We demonstrate an ultrahigh energy density asymmetric supercapacitor (ASC) having a novel NiCo(CO3)(OH)2 nanoneedle positive electrode, Fe2O3/rGO nanocomposite negative electrode, and advanced potassium ferricyanide (K3[Fe(CN)6])/potassium hydroxide (KOH) electrolyte. The electrode materials were synthesized by a hydrothermal technique. The unique positive electrode was first shown to have a remarkable specific capacitance (Csp) of 3248.9 F g-1 at 1 A g-1 in an electrolyte containing 0.06 M K3[Fe(CN)6] and 3 M KOH. The ASC gives a superior energy density of 84.1 W h kg-1 at a power density of 825 W kg-1. The findings in this work provide a very promising approach toward the development of high-performance energy storage devices.",

author = "Nguyen, {Van Thanh} and Ting, {Jyh Ming}",

note = "Funding Information: This work has been supported by the Hierarchical Green-Energy Materials (Hi-GEM) Research Center under grant no. MOST-109-2634-F-006-020 and the Ministry of Science and Technology in Taiwan under grant no. MOST 108-3017-F-006-003 in Taiwan. Publisher Copyright: {\textcopyright} 2020 American Chemical Society.",

year = "2020",

month = dec,

day = "14",

doi = "10.1021/acssuschemeng.0c05891",

language = "English",

volume = "8",

pages = "18023--18033",

journal = "ACS Sustainable Chemistry and Engineering",

issn = "2168-0485",

publisher = "American Chemical Society",

number = "49",

}

TY - JOUR

T1 - A Redox-Additive Electrolyte and Nanostructured Electrode for Enhanced Supercapacitor Energy Density

AU - Nguyen, Van Thanh

AU - Ting, Jyh Ming

N1 - Funding Information: This work has been supported by the Hierarchical Green-Energy Materials (Hi-GEM) Research Center under grant no. MOST-109-2634-F-006-020 and the Ministry of Science and Technology in Taiwan under grant no. MOST 108-3017-F-006-003 in Taiwan. Publisher Copyright: © 2020 American Chemical Society.

PY - 2020/12/14

Y1 - 2020/12/14

N2 - We demonstrate an ultrahigh energy density asymmetric supercapacitor (ASC) having a novel NiCo(CO3)(OH)2 nanoneedle positive electrode, Fe2O3/rGO nanocomposite negative electrode, and advanced potassium ferricyanide (K3[Fe(CN)6])/potassium hydroxide (KOH) electrolyte. The electrode materials were synthesized by a hydrothermal technique. The unique positive electrode was first shown to have a remarkable specific capacitance (Csp) of 3248.9 F g-1 at 1 A g-1 in an electrolyte containing 0.06 M K3[Fe(CN)6] and 3 M KOH. The ASC gives a superior energy density of 84.1 W h kg-1 at a power density of 825 W kg-1. The findings in this work provide a very promising approach toward the development of high-performance energy storage devices.

AB - We demonstrate an ultrahigh energy density asymmetric supercapacitor (ASC) having a novel NiCo(CO3)(OH)2 nanoneedle positive electrode, Fe2O3/rGO nanocomposite negative electrode, and advanced potassium ferricyanide (K3[Fe(CN)6])/potassium hydroxide (KOH) electrolyte. The electrode materials were synthesized by a hydrothermal technique. The unique positive electrode was first shown to have a remarkable specific capacitance (Csp) of 3248.9 F g-1 at 1 A g-1 in an electrolyte containing 0.06 M K3[Fe(CN)6] and 3 M KOH. The ASC gives a superior energy density of 84.1 W h kg-1 at a power density of 825 W kg-1. The findings in this work provide a very promising approach toward the development of high-performance energy storage devices.

UR - http://www.scopus.com/inward/record.url?scp=85097772208&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85097772208&partnerID=8YFLogxK

U2 - 10.1021/acssuschemeng.0c05891

DO - 10.1021/acssuschemeng.0c05891

M3 - Article

AN - SCOPUS:85097772208

VL - 8

SP - 18023

EP - 18033

JO - ACS Sustainable Chemistry and Engineering

JF - ACS Sustainable Chemistry and Engineering

SN - 2168-0485

IS - 49

ER -

A Redox-Additive Electrolyte and Nanostructured Electrode for Enhanced Supercapacitor Energy Density

Abstract

All Science Journal Classification (ASJC) codes

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this