Journal of the American Chemical Society· 2013Q1
An Advanced Ni–Fe Layered Double Hydroxide Electrocatalyst for Water Oxidation
- 2,801citations
- Q1SCImago
- 2013year
Short summary
Ultrathin nickel-iron layered double hydroxide (NiFe-LDH) nanoplates grown on carbon nanotubes (CNTs) exhibit superior electrocatalytic activity and stability for water oxidation compared to commercial iridium catalysts.
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Key points
- Ultrathin NiFe-LDH nanoplates were synthesized on CNTs.
- The NiFe-LDH phase was formed by incorporating Fe into nickel hydroxide.
- The NiFe-LDH/CNT complex showed higher electrocatalytic activity for oxygen evolution than commercial Ir catalysts.
- The catalyst also exhibited superior stability in alkaline solutions.
AI-generated from the title and abstract; the full text is not read.
Abstract
Highly active, durable, and cost-effective electrocatalysts for water oxidation to evolve oxygen gas hold a key to a range of renewable energy solutions, including water-splitting and rechargeable metal-air batteries. Here, we report the synthesis of ultrathin nickel-iron layered double hydroxide (NiFe-LDH) nanoplates on mildly oxidized multiwalled carbon nanotubes (CNTs). Incorporation of Fe into the nickel hydroxide induced the formation of NiFe-LDH. The crystalline NiFe-LDH phase in nanoplate form is found to be highly active for oxygen evolution reaction in alkaline solutions. For NiFe-LDH grown on a network of CNTs, the resulting NiFe-LDH/CNT complex exhibits higher electrocatalytic activity and stability for oxygen evolution than commercial precious metal Ir catalysts.
The authors' abstract, as published at the source. Journal of the American Chemical Society, 2013 · DOI ↗
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Field: Renewable Energy, Sustainability and the Environment
Renewable Energy, Sustainability and the EnvironmentEnergy