Assembling Ni-Fe Layered Double Hydroxide 2D thin films for oxygen evolution electrodes

Massimo Rosa, Victor Costa Bassetto, Hubert H. Girault, Andreas Lesch, Vincenzo Esposito*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Continuous hydrothermal flow synthesis (CHFS) of Ni-Fe Layered Double Hydroxide (LDH) leads to waterborne dispersions of 2D nanoplatelets in the range of 10-50 nm in lateral size. Conversion of the as-synthesized LDH nanoplatelet dispersion into inkjet printing inks results in high precision patterning and complete substrate coverage with low LDH loadings in the range of µg·cm−2. The Ni-Fe LDHs’ anisotropy induces a preferential in-plane alignment to a glassy carbon substrate producing low porosity films. Thin Ni-Fe LDH films in the submicrometer range exhibit superior electrocatalytic activity for the oxygen evolution reaction (OER), with an overpotential of 270 mV at 10 mA·cm−2 and a Tafel slope of 32 mV·dec−1. The particle alignment induces a loading-independent electrochemical performance of the Ni-Fe LDH electrodes. The combination of CHFS and inkjet printing represents a promising hyphenation of large-scale synthesis and electrode production.
Original languageEnglish
JournalApplied Energy Materials
ISSN2574-0962
DOIs
Publication statusAccepted/In press - 2020

Keywords

  • 2D materials
  • Nanostructures
  • Layered double hydroxide
  • Oxygen evolution reaction
  • Continuous hydrothermal syntesis
  • Inkjet printing

Cite this

Rosa, Massimo ; Bassetto, Victor Costa ; Girault, Hubert H. ; Lesch, Andreas ; Esposito, Vincenzo. / Assembling Ni-Fe Layered Double Hydroxide 2D thin films for oxygen evolution electrodes. In: Applied Energy Materials. 2020.
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title = "Assembling Ni-Fe Layered Double Hydroxide 2D thin films for oxygen evolution electrodes",
abstract = "Continuous hydrothermal flow synthesis (CHFS) of Ni-Fe Layered Double Hydroxide (LDH) leads to waterborne dispersions of 2D nanoplatelets in the range of 10-50 nm in lateral size. Conversion of the as-synthesized LDH nanoplatelet dispersion into inkjet printing inks results in high precision patterning and complete substrate coverage with low LDH loadings in the range of µg·cm−2. The Ni-Fe LDHs’ anisotropy induces a preferential in-plane alignment to a glassy carbon substrate producing low porosity films. Thin Ni-Fe LDH films in the submicrometer range exhibit superior electrocatalytic activity for the oxygen evolution reaction (OER), with an overpotential of 270 mV at 10 mA·cm−2 and a Tafel slope of 32 mV·dec−1. The particle alignment induces a loading-independent electrochemical performance of the Ni-Fe LDH electrodes. The combination of CHFS and inkjet printing represents a promising hyphenation of large-scale synthesis and electrode production.",
keywords = "2D materials, Nanostructures, Layered double hydroxide, Oxygen evolution reaction, Continuous hydrothermal syntesis, Inkjet printing",
author = "Massimo Rosa and Bassetto, {Victor Costa} and Girault, {Hubert H.} and Andreas Lesch and Vincenzo Esposito",
year = "2020",
doi = "10.1021/acsaem.9b02055",
language = "English",
journal = "Applied Energy Materials",
issn = "2574-0962",
publisher = "ACS Publications",

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Assembling Ni-Fe Layered Double Hydroxide 2D thin films for oxygen evolution electrodes. / Rosa, Massimo; Bassetto, Victor Costa ; Girault, Hubert H.; Lesch, Andreas; Esposito, Vincenzo.

In: Applied Energy Materials, 2020.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Assembling Ni-Fe Layered Double Hydroxide 2D thin films for oxygen evolution electrodes

AU - Rosa, Massimo

AU - Bassetto, Victor Costa

AU - Girault, Hubert H.

AU - Lesch, Andreas

AU - Esposito, Vincenzo

PY - 2020

Y1 - 2020

N2 - Continuous hydrothermal flow synthesis (CHFS) of Ni-Fe Layered Double Hydroxide (LDH) leads to waterborne dispersions of 2D nanoplatelets in the range of 10-50 nm in lateral size. Conversion of the as-synthesized LDH nanoplatelet dispersion into inkjet printing inks results in high precision patterning and complete substrate coverage with low LDH loadings in the range of µg·cm−2. The Ni-Fe LDHs’ anisotropy induces a preferential in-plane alignment to a glassy carbon substrate producing low porosity films. Thin Ni-Fe LDH films in the submicrometer range exhibit superior electrocatalytic activity for the oxygen evolution reaction (OER), with an overpotential of 270 mV at 10 mA·cm−2 and a Tafel slope of 32 mV·dec−1. The particle alignment induces a loading-independent electrochemical performance of the Ni-Fe LDH electrodes. The combination of CHFS and inkjet printing represents a promising hyphenation of large-scale synthesis and electrode production.

AB - Continuous hydrothermal flow synthesis (CHFS) of Ni-Fe Layered Double Hydroxide (LDH) leads to waterborne dispersions of 2D nanoplatelets in the range of 10-50 nm in lateral size. Conversion of the as-synthesized LDH nanoplatelet dispersion into inkjet printing inks results in high precision patterning and complete substrate coverage with low LDH loadings in the range of µg·cm−2. The Ni-Fe LDHs’ anisotropy induces a preferential in-plane alignment to a glassy carbon substrate producing low porosity films. Thin Ni-Fe LDH films in the submicrometer range exhibit superior electrocatalytic activity for the oxygen evolution reaction (OER), with an overpotential of 270 mV at 10 mA·cm−2 and a Tafel slope of 32 mV·dec−1. The particle alignment induces a loading-independent electrochemical performance of the Ni-Fe LDH electrodes. The combination of CHFS and inkjet printing represents a promising hyphenation of large-scale synthesis and electrode production.

KW - 2D materials

KW - Nanostructures

KW - Layered double hydroxide

KW - Oxygen evolution reaction

KW - Continuous hydrothermal syntesis

KW - Inkjet printing

U2 - 10.1021/acsaem.9b02055

DO - 10.1021/acsaem.9b02055

M3 - Journal article

JO - Applied Energy Materials

JF - Applied Energy Materials

SN - 2574-0962

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