Cited time in webofscience Cited time in scopus

Ti2Zr2O8 nanotube as an additive in the fuel cell membrane and catalyst layer for improved low humidity operation

Title
Ti2Zr2O8 nanotube as an additive in the fuel cell membrane and catalyst layer for improved low humidity operation
Author(s)
Tsipoaka, MaxwellAziz, Md. AbdulPark, JuahnShanmugam, Sangaraju
DGIST Authors
Tsipoaka, MaxwellAziz, Md. AbdulPark, JuahnShanmugam, Sangaraju
Issued Date
2021-10
Type
Article
Author Keywords
Fluoride emission rateMEAMembraneRadical scavengerTi2Zr2O8
Keywords
COMPOSITE MEMBRANESELEVATED-TEMPERATUREELECTROLYTE MEMBRANESWATER MANAGEMENTPOWER-DENSITYNAFION MATRIXDURABILITYELECTROCATALYSTCONDUCTIVITYCONFINEMENT
ISSN
0378-7753
Abstract
The development of high-performance, low-cost and durable membrane electrode assembly (MEA) materials receives significant attention from the fuel cell community. A promising MEA design approach introduces a radical scavenging Ti2Zr2O8 nanotubes additive (TZONT) in the polymer electrolyte membrane and cathode catalyst layer for fuel cells operating under dry conditions is described. The modified MEA operating at 20% relative humidity (RH) showed ~18% increase in the peak power density than its counterpart assembled with only a modified membrane. A fluoride emission rate (FER) analysis reveals that the TZONT additive in the Nafion ionomer protects it from radical attack and, thus, lowers the FER value to about 200-times the commercial Nafion-212 membrane. Finally, we revealed a promising approach to lower the Pt loading in the cathode catalytic layer without compromising its intrinsic activity in a relatively cost-competitive manner. © 2021 Elsevier B.V.
URI
http://hdl.handle.net/20.500.11750/15323
DOI
10.1016/j.jpowsour.2021.230386
Publisher
Elsevier BV
Related Researcher
  • 상가라쥬샨무감 Shanmugam, Sangaraju 에너지공학과
  • Research Interests Electrocatalysts for fuel cells; water splitting; metal-air batteries; Polymer electrolyte membranes for fuel cells; flow batteries; Hydrogen generation and utilization
Files in This Item:

There are no files associated with this item.

Appears in Collections:
Department of Energy Science and Engineering Advanced Energy Materials Laboratory 1. Journal Articles

qrcode

  • twitter
  • facebook
  • mendeley

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

BROWSE