Reconstruction and optimization of catalyst layer of high temperature proton exchange membrane fuel cell

Lingchao Xia, Shi Tao, Meng Ni, Yang Wang, Chengru Wu, Qidong Xu, Yawen Dai, Chun Cheng

Research output: Journal article publicationJournal articleAcademic researchpeer-review

7 Citations (Scopus)

Abstract

Catalyst layer determines the performance and cost of high temperature proton exchange membrane fuel cell. However, a fundamental understanding and optimization of its microstructure is hindered by the characterization limitation. In this study, the micro model and macro model are integrated to examine the effects of ionomer/carbon (I/C) ratio, Pt/C ratio and Pt loading on the microstructure and cell performance. As many Pt particles are partly coved by the ionomer, assuming all catalyst are covered by ionomer is inappropriate. Both Pt/C ratio and I/C ratio can significantly affect the compositions and microstructure of CL. The increase of Pt loading increases the cell performance, but the increment is small at a high platinum loading. However, the performance cost increases linearly with the increasing platinum loading. Thus, both cell performance and performance cost must be taken into consideration when designing CL of high temperature proton exchange membrane fuel cell.

Original languageEnglish
JournalInternational Journal of Hydrogen Energy
DOIs
Publication statusAccepted/In press - Sept 2022

Keywords

  • Catalyst layer
  • HT-PEMFC
  • Performance cost
  • Platinum loading
  • Reconstruction

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

Fingerprint

Dive into the research topics of 'Reconstruction and optimization of catalyst layer of high temperature proton exchange membrane fuel cell'. Together they form a unique fingerprint.

Cite this