BROWSE

Related Researcher

Author's Photo

Kim, Guntae
gunslab
Research Interests
  • Solid Oxide Fuel Cells (SOFCs)& SOE, PEMFC, metal-air batteries, Metal-CO2 system, Catalyst for DRM

ITEM VIEW & DOWNLOAD

Honeycomb-Like Perovskite Oxide Electrocatalyst for a Hybrid Li-Air Battery

Cited 0 times inthomson ciCited 0 times inthomson ci
Title
Honeycomb-Like Perovskite Oxide Electrocatalyst for a Hybrid Li-Air Battery
Author
Ju, Young-WanYoo, SeonyoungGuo, LiminKim, ChangminInoishi, AtsushiJeong, Hu YoungShin, JeeyoungIshihara, TatsumiYim, Sung-DaeKim, Guntae
Issue Date
2015-10
Publisher
ELECTROCHEMICAL SOC INC
Citation
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, v.162, no.14, pp.A2651 - A2655
Abstract
Honeycomb-like Nd0.7Sr0.3CoO3-delta has been successfully prepared with a PMMA hard-template for an energy storage system and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and nitrogen adsorption-desorption measurements. The prepared 3-dimensionally (3-D) ordered mesoporous Nd0.7Sr0.3CoO3-delta (3DOM-NSC) has a well-developed mesoporous structure and has high specific surface area (22.0 m(2) g(-1)). The catalytic activity for the oxygen reduction reaction (ORR) in 0.1 M KOH solution has been studied by using a rotating-ring-disk electrode (RRDE). In the ORR test, a limiting current density of 5.83 mA cm(-2) at 0.7 V (vs. Hg/HgO) with 1600 rpm was obtained, a value comparable with that of Pt/C. Moreover, the ORR mainly favors a direct four-electron pathway. Consequently, the high electrocatalytic activity and mesoporous structure result in stable, excellent performance in a hybrid Li-air cell.
URI
https://scholarworks.unist.ac.kr/handle/201301/18120
URL
http://jes.ecsdl.org/content/162/14/A2651.full.pdf+html
DOI
10.1149/2.0311514jes
ISSN
0013-4651
Appears in Collections:
ECHE_Journal Papers
SE_Journal Papers
Files in This Item:
There are no files associated with this item.

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU