Gold-Palladium nanoparticles supported by mesoporous β-MnO 2 air electrode for rechargeable Li-Air battery

Arjun Kumar Thapa, Tae Ho Shin, Shintaro Ida, Gamini U. Sumanasekera, Mahendra K. Sunkara, Tatsumi Ishihara

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

The electrochemical performance and electrode reaction using Au-Pd nanoparticle (NP) supported mesoporous β-MnO 2 as a cathode catalyst for rechargeable Lithium-Air (Li-Air) battery is reported here for the first time. In this study, Au-Pd NP-supported mesoporous β-MnO 2 was successfully synthesized by hydrothermal process using a silica KIT-6 template. It has an initial discharge capacity of ca. 775 mAh g -1 with high reversible capacity at a current density of 0.13 mA cm -2. The Au-Pd NP-supported mesoporous β-MnO 2 cathode catalyst, which enhances the kinetic of oxygen reduction and evolution reactions (ORR/OERs), thereby improves energy and coulombic efficiency of the Li-Air cell. Raman spectroscopy and ex-situ XRD results of the Au-Pd NP-supported mesoporous β-MnO 2 air electrode suggest that the observed capacity comes from oxidation of Li + to form Li 2O 2 during discharge to 2.0 V.

Original languageEnglish
Pages (from-to)211-216
Number of pages6
JournalJournal of Power Sources
Volume220
DOIs
Publication statusPublished - Dec 15 2012

Fingerprint

Palladium
Lithium
Gold
electric batteries
palladium
lithium
gold
Nanoparticles
nanoparticles
Electrodes
electrodes
air
Air
Cathodes
cathodes
catalysts
Catalysts
Silicon Dioxide
Raman spectroscopy
Current density

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Physical and Theoretical Chemistry

Cite this

Gold-Palladium nanoparticles supported by mesoporous β-MnO 2 air electrode for rechargeable Li-Air battery. / Thapa, Arjun Kumar; Shin, Tae Ho; Ida, Shintaro; Sumanasekera, Gamini U.; Sunkara, Mahendra K.; Ishihara, Tatsumi.

In: Journal of Power Sources, Vol. 220, 15.12.2012, p. 211-216.

Research output: Contribution to journalArticle

Thapa, Arjun Kumar ; Shin, Tae Ho ; Ida, Shintaro ; Sumanasekera, Gamini U. ; Sunkara, Mahendra K. ; Ishihara, Tatsumi. / Gold-Palladium nanoparticles supported by mesoporous β-MnO 2 air electrode for rechargeable Li-Air battery. In: Journal of Power Sources. 2012 ; Vol. 220. pp. 211-216.
@article{450d14d43f4440b7a56a8a656151aebf,
title = "Gold-Palladium nanoparticles supported by mesoporous β-MnO 2 air electrode for rechargeable Li-Air battery",
abstract = "The electrochemical performance and electrode reaction using Au-Pd nanoparticle (NP) supported mesoporous β-MnO 2 as a cathode catalyst for rechargeable Lithium-Air (Li-Air) battery is reported here for the first time. In this study, Au-Pd NP-supported mesoporous β-MnO 2 was successfully synthesized by hydrothermal process using a silica KIT-6 template. It has an initial discharge capacity of ca. 775 mAh g -1 with high reversible capacity at a current density of 0.13 mA cm -2. The Au-Pd NP-supported mesoporous β-MnO 2 cathode catalyst, which enhances the kinetic of oxygen reduction and evolution reactions (ORR/OERs), thereby improves energy and coulombic efficiency of the Li-Air cell. Raman spectroscopy and ex-situ XRD results of the Au-Pd NP-supported mesoporous β-MnO 2 air electrode suggest that the observed capacity comes from oxidation of Li + to form Li 2O 2 during discharge to 2.0 V.",
author = "Thapa, {Arjun Kumar} and Shin, {Tae Ho} and Shintaro Ida and Sumanasekera, {Gamini U.} and Sunkara, {Mahendra K.} and Tatsumi Ishihara",
year = "2012",
month = "12",
day = "15",
doi = "10.1016/j.jpowsour.2012.08.003",
language = "English",
volume = "220",
pages = "211--216",
journal = "Journal of Power Sources",
issn = "0378-7753",
publisher = "Elsevier",

}

TY - JOUR

T1 - Gold-Palladium nanoparticles supported by mesoporous β-MnO 2 air electrode for rechargeable Li-Air battery

AU - Thapa, Arjun Kumar

AU - Shin, Tae Ho

AU - Ida, Shintaro

AU - Sumanasekera, Gamini U.

AU - Sunkara, Mahendra K.

AU - Ishihara, Tatsumi

PY - 2012/12/15

Y1 - 2012/12/15

N2 - The electrochemical performance and electrode reaction using Au-Pd nanoparticle (NP) supported mesoporous β-MnO 2 as a cathode catalyst for rechargeable Lithium-Air (Li-Air) battery is reported here for the first time. In this study, Au-Pd NP-supported mesoporous β-MnO 2 was successfully synthesized by hydrothermal process using a silica KIT-6 template. It has an initial discharge capacity of ca. 775 mAh g -1 with high reversible capacity at a current density of 0.13 mA cm -2. The Au-Pd NP-supported mesoporous β-MnO 2 cathode catalyst, which enhances the kinetic of oxygen reduction and evolution reactions (ORR/OERs), thereby improves energy and coulombic efficiency of the Li-Air cell. Raman spectroscopy and ex-situ XRD results of the Au-Pd NP-supported mesoporous β-MnO 2 air electrode suggest that the observed capacity comes from oxidation of Li + to form Li 2O 2 during discharge to 2.0 V.

AB - The electrochemical performance and electrode reaction using Au-Pd nanoparticle (NP) supported mesoporous β-MnO 2 as a cathode catalyst for rechargeable Lithium-Air (Li-Air) battery is reported here for the first time. In this study, Au-Pd NP-supported mesoporous β-MnO 2 was successfully synthesized by hydrothermal process using a silica KIT-6 template. It has an initial discharge capacity of ca. 775 mAh g -1 with high reversible capacity at a current density of 0.13 mA cm -2. The Au-Pd NP-supported mesoporous β-MnO 2 cathode catalyst, which enhances the kinetic of oxygen reduction and evolution reactions (ORR/OERs), thereby improves energy and coulombic efficiency of the Li-Air cell. Raman spectroscopy and ex-situ XRD results of the Au-Pd NP-supported mesoporous β-MnO 2 air electrode suggest that the observed capacity comes from oxidation of Li + to form Li 2O 2 during discharge to 2.0 V.

UR - http://www.scopus.com/inward/record.url?scp=84865308471&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84865308471&partnerID=8YFLogxK

U2 - 10.1016/j.jpowsour.2012.08.003

DO - 10.1016/j.jpowsour.2012.08.003

M3 - Article

AN - SCOPUS:84865308471

VL - 220

SP - 211

EP - 216

JO - Journal of Power Sources

JF - Journal of Power Sources

SN - 0378-7753

ER -