Enhanced Electrocatalytic Activity for Water Splitting on NiO/Ni/Carbon Fiber Paper
AbstractLarge-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. View Full-Text
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Zhang, R.; Wei, H.; Si, W.; Ou, G.; Zhao, C.; Song, M.; Zhang, C.; Wu, H. Enhanced Electrocatalytic Activity for Water Splitting on NiO/Ni/Carbon Fiber Paper. Materials 2017, 10, 15.
Zhang R, Wei H, Si W, Ou G, Zhao C, Song M, Zhang C, Wu H. Enhanced Electrocatalytic Activity for Water Splitting on NiO/Ni/Carbon Fiber Paper. Materials. 2017; 10(1):15.Chicago/Turabian Style
Zhang, Ruoyu; Wei, Hehe; Si, Wenjie; Ou, Gang; Zhao, Chunsong; Song, Mingjun; Zhang, Cheng; Wu, Hui. 2017. "Enhanced Electrocatalytic Activity for Water Splitting on NiO/Ni/Carbon Fiber Paper." Materials 10, no. 1: 15.
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