Interconnected CuO nanoplates as a highly efficient electrocatalyst for oxygen evolution reaction

Sachin Pundir, Sanjay Upadhyay, Niraj Kumar, Naveen Chandra Joshi, Ruby Priya, Rameez Ahmad Mir, Ismail Hossain, O. P. Pandey

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

In this present work, we successfully develop copper oxide (CuO) nanoplates using a facile precipitation process without utilizing any convoluted equipment and high-cost raw materials. The X-ray diffraction (XRD), Raman, and the energy dispersive X-ray (EDX) analysis revealed the formation of pure phase CuO powder. The sample exhibits an interconnected nanoplates-like structure, which facilitates the fast movement of charge carriers throughout the sample. For the sample, a moderate overpotential (492 mV vs SCE) is sufficient to achieve a current density of 10 mA/cm2. It exhibits a low Tafel slope of 69.5 mV dec−1 and achieved long-term stability over 5000 cyclic voltammetry (CV) cycles.

Original languageEnglish
Article number133921
JournalMaterials Letters
Volume336
DOIs
StatePublished - 1 Apr 2023
Externally publishedYes

Keywords

  • Energy storage and conversion
  • Nanocrystalline materials
  • Nanoplates
  • Oxygen evolution reaction

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