Highly Active Mixed-Metal Nanosheet Water Oxidation Catalysts Made by Pulsed-Laser Ablation in Liquids
Abstract
Surfactant-free mixed-metal hydroxide water oxidation nanocatalysts were synthesized by pulsed-laser ablation in liquids. In a series of [Ni-Fe]-layered double hydroxides with intercalated nitrate and water, [Ni1-xFex(OH)2](NO3)y(OH)x-y·nH2O, higher activity was observed as the amount of Fe decreased to 22%. Addition of Ti(4+) and La(3+) ions further enhanced electrocatalysis, with a lowest overpotential of 260 mV at 10 mA cm(-2). Electrocatalytic water oxidation activity increased with the relative proportion of a 405.1 eV N 1s (XPS binding energy) species in the nanosheets.
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Addition of Ti4+ and La3+ to Ni-Fe-based layered double hydroxides improves electrocatalytic water oxidation activity with a lower overpotential of 260 mV at 10 mA cm−2.
“It was noticed that the addition of Ti4+ and La3+ improves electrocatalytic activity with a lower overpotential of 260 mV at 10 mA cm−2.”
From Fundamentals and comprehensive insights on pulsed laser synthesis of advanced materials for diverse photo- and electrocatalytic applications (2022) · cites this paper as [221]
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- Authors
- Hunter, B. M., Blakemore, J. D., Deimund, M., Gray, H. B., Winkler, J. R., & Müller, A. M.
- Affiliations
- California Institute of Technology (US)
- Corresponding author
- Müller, Astrid M.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2014-09-16
- Volume
- 136
- Issue
- 38
- Pages
- 13118-13121
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2076447899
- Cited by
- 321
- References
- 1
- Citations by year
- 2026: 5 · 2025: 18 · 2024: 19 · 2023: 17 · 2022: 25 · 2021: 30 · 2020: 33 · 2019: 23 · 2018: 35 · 2017: 50 · 2016: 34 · 2015: 32
- FWCI
- 12.76
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of the American Chemical Society (publishedVersion)
- PubMed (publishedVersion)
- CaltechAUTHORS (California Institute of Technology) (submittedVersion)
- Funders
- Division of Chemistry (CHE-1305124)
- Arnold and Mabel Beckman Foundation
- Topics
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
- Physical Sciences › Engineering › Biomedical Engineering › Laser-Ablation Synthesis of Nanoparticles
- Physical Sciences › Materials Science › Materials Chemistry › Layered Double Hydroxides Synthesis and Applications
- Keywords
- electrocatalytic water oxidation, pulsed laser ablation in liquid, NiFe layered double hydroxide, surfactant-free synthesis, nitrate intercalation, titanium doping, lanthanum doping, overpotential, N 1s binding energy, nanocatalysts
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