Enhanced electrocatalytic oxidation of urea based on nickel hydroxide nanoribbons

Dan Wang, Wei Yan, Santosh H. Vijapur, Gerardine G. Botte

Research output: Contribution to journalArticlepeer-review

143 Scopus citations

Abstract

One-dimensional nickel hydroxide nanoribbons with thickness of 15-20 nm and length up to several micrometers were synthesized through a simple template-free hydrothermal method. The nickel hydroxide nanoribbons were developed as electrocatalysts for urea electro-oxidation in alkaline media and showed more than 10 times enhancement in current density compared to bulk nickel hydroxide powders. The enhanced electrocatalytic oxidation of urea using nickel hydroxide nanoribbons reveals great potential for future applications in hydrogen production, remediation of urea-rich wastewater, and fuel cells. Highlights: One-dimensional nickel hydroxide nanoribbons were synthesized through a simple template-free hydrothermal method. The nickel hydroxide nanoribbons were developed as efficient electrocatalysts for urea electrocatalytic oxidation. More than 10 times enhancement in current density compared to bulk nickel hydroxide powders.

Original languageEnglish
Pages (from-to)498-502
Number of pages5
JournalJournal of Power Sources
Volume217
DOIs
StatePublished - Nov 1 2012

Keywords

  • Electrocatalysts
  • Fuel cells
  • Hydrogen production
  • Nickel hydroxide nanoribbons
  • Urea oxidation

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