AgNi@ZnO nanorods grown on graphene as an anodic catalyst for direct glucose fuel cells

Thoa Thi Kim Huynh, Thao Quynh Ngan Tran, Hyon Hee Yoon, Woo Jae Kim, Il Tae Kim

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Nano carbon-semiconductor hybrid materials such as graphene and zinc oxide (ZnO) have been vigorously explored for their direct electron transfer properties and high specific surface areas. We fabricated a three-dimensional anodic electrode catalyst nanostructure for a direct glucose fuel cell (DGFC) utilizing two-dimensional monolayer graphene and one-dimensional ZnO nanorods, which accommodate silver/nickel (Ag/Ni) nanoparticle catalyst. Glucose, as an unlimited and safe natural energy resource, has become the most popular fuel for energy storage. Ag and Ni nanoparticles, having superior catalytic activities and anti-poisoning effect, respectively, demonstrate a 73-times enhanced cell performance (550 µW cm−2 or 8 mW mg−1) when deposited on zinc oxide nanorods with a small amount of ∼0.069 mg in 0.5 M of glucose and 1 M of KOH solution at 60 oC. This three-dimensional anodic electrode catalyst nanostructure presents promise to open up a new generation of fuel cells with non-Pt, low mass loading of catalyst, and 3D nanostructure electrodes for high electrochemical performances.

Original languageEnglish
Pages (from-to)1193-1200
Number of pages8
JournalKorean Journal of Chemical Engineering
Volume36
Issue number7
DOIs
StatePublished - 1 Jul 2019

Keywords

  • 3D Nanostructures
  • CVD Graphene
  • Direct Glucose Fuel Cell
  • Nickel Nanoparticles
  • Silver Nanoparticles
  • Zinc Oxide Nanorods

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