Mof-derived cupt/nc electrocatalyst for oxygen reduction reaction

Rehan Anwar, Naseem Iqbal, Saadia Hanif, Tayyaba Noor, Xuan Shi, Neelam Zaman, Daarain Haider, Syed Aun M. Rizvi, A. M. Kannan

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Metal-organic frameworks (MOFs) have been at the center stage of material science in the recent past because of their structural properties and wide applications in catalysis. MOFs have also been used as hard templates for the preparation of catalysts. In this study, highly active CuPt/NC electrocatalyst was synthesized by pyrolyzing Cu-tpa MOF along with Pt precursor under flowing Ar-H2 atmosphere. The catalyst was characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and X-ray powder diffraction (XRD). Rotating disk electrode study was performed to determine the oxygen reduction reaction (ORR) activity for CuPt/NC in 0.1 M HClO4 at different revolutions per minute (400, 800, 1200, and 1600) and it was also compared with commercial Pt/C catalyst. Further the ORR performance was evaluated by K-L plots and Tafel slope. CuPt/NC shows excellent ORR performance with onset potential of 0.9 V (vs. RHE), which is comparable with commercial Pt/C. The ORR activity of CuPt/NC is demonstrated as an efficient electrocatalyst for fuel cell.

Original languageEnglish (US)
Article number799
Pages (from-to)1-13
Number of pages13
JournalCatalysts
Volume10
Issue number7
DOIs
StatePublished - Jul 2020

Keywords

  • Cu-tpa MOF
  • CuPt/NC
  • PEMFC ORR electrocatalyst
  • Platinum

ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

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