NiCo–N-doped carbon nanotubes based cathode catalyst for alkaline membrane fuel cell

Saadia Hanif, Naseem Iqbal, Xuan Shi, Tayyaba Noor, Ghulam Ali, A. M. Kannan

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

For alkaline fuel cell, development of highly efficient catalysts based on non-noble metal for oxygen reduction reaction is of high significance. In this work, synthesis of nitrogen doped carbon nanotubes (NCNTs) derived from Zeolitic Imidazolate Frameworks (ZIFs) and their performance for oxygen reduction reaction (ORR) in alkaline medium are studied. The NiCo/NCNTs (nitrogen doped carbon nanotubes) showing excellent ORR performance in KOH with current density of −5.6 mA cm−2 and onset potential of 0.98 V vs RHE. The improved electrochemical performance and stability is credited to the synergetic effect of the nitrogen doped carbon nanotubes (NCNTs) and the Ni/Co active sites. The alkaline fuel cell performance of NiCo/NCNTs as cathode catalyst was 65 mW cm−2, which is slightly higher than the commercial Pt/C as cathode (60 mW cm−2). These results indicate that NiCo/NCNTs are promising electrocatalysts for ORR in alkaline fuel cell.

Original languageEnglish (US)
Pages (from-to)508-516
Number of pages9
JournalRenewable Energy
Volume154
DOIs
StatePublished - Jul 2020

Keywords

  • Alkaline fuel cell
  • Membrane-electrodes assembly
  • Nitrogen doped carbon nanotubes (NCNTs)
  • ORR Electrocatalyst

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment

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