Hierarchically constructed silver nanowire@nickel-iron layered double hydroxide nanostructures for electrocatalytic water splitting

Xiao Zhang, Aleksei Marianov, Yijiao Jiang, Claudio Cazorla, Dewei Chu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

We report a strategy for the surface engineering of electrode materials for water splitting by constructing a nickel–iron (Ni0.95Fe0.05) layered double hydroxide (LDH) nanosheets on silver nanowires (Ag NWs). The bimetallic electrocatalysts show excellent activity both in cathodic and anodic processes. As a result, we achieved a current density of 10 mA/cm2 at a cell potential as small as 1.56 V. Moreover, the electrodes feature great stability and even after 12 h of continuous operation maintain stable cell voltage. Excellent performance of the LDH-based electrocatalysts stems from the combination of unsurpassed conductivity and stability of Ag backbone and LDH lattice expansion upon introduction of Fe atoms.
Original languageEnglish
Pages (from-to)887-895
Number of pages9
JournalACS Applied Nano Materials
Volume3
Issue number1
DOIs
Publication statusPublished - 24 Jan 2020

Keywords

  • silver nanowire
  • layered double hydroxide nanosheets
  • nickel−iron bimetallics
  • electrocatalysis
  • water splitting

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