Enhanced electrocatalytic activity for water splitting on NiO/Ni/carbon fiber paper

Ruoyu Zhang, Hehe Wei, Wenjie Si, Gang Ou, Chunsong Zhao, Mingjun Song, Cheng Zhang, Hui Wu

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Abstract

Large-scale growth of low-cost, efficient, and durable non-noble metal-based electrocatalysts for water splitting is crucial for future renewable energy systems. Atomic layer deposition (ALD) provides a promising route for depositing uniform thin coatings of electrocatalysts, which are useful in many technologies, including the splitting of water. In this communication, we report the growth of a NiO/Ni catalyst directly on carbon fiber paper by atomic layer deposition and report subsequent reduction and oxidation annealing treatments. The 10–20 nm NiO/Ni nanoparticle catalysts can reach a current density of 10 mA·cm−2 at an overpotential of 189 mV for hydrogen evolution reactions and 257 mV for oxygen evolution reactions with high stability. We further successfully achieved a water splitting current density of 10 mA·cm−2 at 1.78 V using a typical NiO/Ni coated carbon fiber paper two-electrode setup. The results suggest that nanoparticulate NiO/Ni is an active, stable, and noble-metal-free electrocatalyst, which facilitates a method for future water splitting applications.
Original languageEnglish
Article number15
Number of pages8
JournalMaterials
Volume10
Issue number1
DOIs
Publication statusPublished - 1 Jan 2017
Externally publishedYes

Fingerprint

Carbon fibers
Electrocatalysts
Atomic layer deposition
Water
Current density
Catalysts
Precious metals
Hydrogen
Metals
Annealing
Oxygen
Nanoparticles
Coatings
Oxidation
Electrodes
carbon fiber
Communication
Costs

Cite this

Zhang, Ruoyu ; Wei, Hehe ; Si, Wenjie ; Ou, Gang ; Zhao, Chunsong ; Song, Mingjun ; Zhang, Cheng ; Wu, Hui. / Enhanced electrocatalytic activity for water splitting on NiO/Ni/carbon fiber paper. In: Materials. 2017 ; Vol. 10, No. 1.
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abstract = "Large-scale growth of low-cost, efficient, and durable non-noble metal-based electrocatalysts for water splitting is crucial for future renewable energy systems. Atomic layer deposition (ALD) provides a promising route for depositing uniform thin coatings of electrocatalysts, which are useful in many technologies, including the splitting of water. In this communication, we report the growth of a NiO/Ni catalyst directly on carbon fiber paper by atomic layer deposition and report subsequent reduction and oxidation annealing treatments. The 10–20 nm NiO/Ni nanoparticle catalysts can reach a current density of 10 mA·cm−2 at an overpotential of 189 mV for hydrogen evolution reactions and 257 mV for oxygen evolution reactions with high stability. We further successfully achieved a water splitting current density of 10 mA·cm−2 at 1.78 V using a typical NiO/Ni coated carbon fiber paper two-electrode setup. The results suggest that nanoparticulate NiO/Ni is an active, stable, and noble-metal-free electrocatalyst, which facilitates a method for future water splitting applications.",
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Zhang, R, Wei, H, Si, W, Ou, G, Zhao, C, Song, M, Zhang, C & Wu, H 2017, 'Enhanced electrocatalytic activity for water splitting on NiO/Ni/carbon fiber paper', Materials, vol. 10, no. 1, 15. https://doi.org/10.3390/ma10010015

Enhanced electrocatalytic activity for water splitting on NiO/Ni/carbon fiber paper. / Zhang, Ruoyu; Wei, Hehe; Si, Wenjie; Ou, Gang; Zhao, Chunsong; Song, Mingjun; Zhang, Cheng; Wu, Hui.

In: Materials, Vol. 10, No. 1, 15, 01.01.2017.

Research output: Contribution to journalArticleAcademicpeer-review

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AU - Zhang, Ruoyu

AU - Wei, Hehe

AU - Si, Wenjie

AU - Ou, Gang

AU - Zhao, Chunsong

AU - Song, Mingjun

AU - Zhang, Cheng

AU - Wu, Hui

PY - 2017/1/1

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AB - Large-scale growth of low-cost, efficient, and durable non-noble metal-based electrocatalysts for water splitting is crucial for future renewable energy systems. Atomic layer deposition (ALD) provides a promising route for depositing uniform thin coatings of electrocatalysts, which are useful in many technologies, including the splitting of water. In this communication, we report the growth of a NiO/Ni catalyst directly on carbon fiber paper by atomic layer deposition and report subsequent reduction and oxidation annealing treatments. The 10–20 nm NiO/Ni nanoparticle catalysts can reach a current density of 10 mA·cm−2 at an overpotential of 189 mV for hydrogen evolution reactions and 257 mV for oxygen evolution reactions with high stability. We further successfully achieved a water splitting current density of 10 mA·cm−2 at 1.78 V using a typical NiO/Ni coated carbon fiber paper two-electrode setup. The results suggest that nanoparticulate NiO/Ni is an active, stable, and noble-metal-free electrocatalyst, which facilitates a method for future water splitting applications.

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