Oxygen evolution catalysts by self-assembly of MS₂ (M = Mo, W) and Ni₃Fe-LDH nanosheets.
- 1Chemistry Research Laboratory, Department of Chemistry, University of Oxford Mansfield Road Oxford OX1 3TA UK [email protected] +44(0)1865 272686.
Abstract
Layered double hydroxides (LDHs) have been demonstrated as high-activity electrocatalysts for the oxygen evolution reaction (OER) but their performance is limited by their inherently low electrical conductivity. This can be mitigated by the formation of a hybrid material composed of transition metal dichalcogenide (TMD) layers interleaved between LDH sheets. Here, we report an improved synthesis of TMD/LDH hybrid materials using a post-synthetic aqueous miscible organic solvent treatment (AMOST) on Ni₃Fe-borate-LDH to yield predominantly mono/few-layer LDH nanosheets. These LDH nanosheets when combined with either MoS₂ or WS₂ monolayers create MoS₂/Ni₃Fe-LDH and WS₂/Ni₃Fe-LDH hybrid materials, respectively. The hybrid materials prepared in this way exhibit improved electrocatalytic performance towards the OER, with low overpotentials at 10 mA cm⁻² of 258 and 248 mV, respectively. Over 12 h chronopotentiometric testing, both hybrids show lower potential drift than pristine Ni₃Fe-borate-LDH, while separate extended measurements maintained operation at 10 mA cm⁻² for approximately 20 h.
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BibTeX
@article{williams2026oxygen,
title = {{Oxygen evolution catalysts by self-assembly of MS₂ (M = Mo, W) and Ni₃Fe-LDH nanosheets.}},
author = {Matthew R L Williams and Yang Li and Roland C Turnell-Ritson and Dermot O'Hare},
journal = {RSC advances},
year = {2026},
month = oct,
doi = {10.1039/d6ra07498g},
url = {https://europepmc.org/article/MED/42846452},
note = {CC BY},
}
RIS
TY - JOUR
TI - Oxygen evolution catalysts by self-assembly of MS₂ (M = Mo, W) and Ni₃Fe-LDH nanosheets.
AU - Matthew R L Williams
AU - Yang Li
AU - Roland C Turnell-Ritson
AU - Dermot O'Hare
PY - 2026
DA - 2026/10/07
JO - RSC advances
DO - 10.1039/d6ra07498g
UR - https://europepmc.org/article/MED/42846452
AB - Layered double hydroxides (LDHs) have been demonstrated as high-activity electrocatalysts for the oxygen evolution reaction (OER) but their performance is limited by their inherently low electrical conductivity. This can be mitigated by the formation of a hybrid material composed of transition metal dichalcogenide (TMD) layers interleaved between LDH sheets. Here, we report an improved synthesis of TMD/LDH hybrid materials using a post-synthetic aqueous miscible organic solvent treatment (AMOST) on Ni₃Fe-borate-LDH to yield predominantly mono/few-layer LDH nanosheets. These LDH nanosheets when combined with either MoS₂ or WS₂ monolayers create MoS₂/Ni₃Fe-LDH and WS₂/Ni₃Fe-LDH hybrid materials, respectively. The hybrid materials prepared in this way exhibit improved electrocatalytic performance towards the OER, with low overpotentials at 10 mA cm⁻² of 258 and 248 mV, respectively. Over 12 h chronopotentiometric testing, both hybrids show lower potential drift than pristine Ni₃Fe-borate-LDH, while separate extended measurements maintained operation at 10 mA cm⁻² for approximately 20 h.
SN - 2046-2069
ER -