High-Index Faceted Ni3S2 Nanosheet Arrays as Highly Active and Ultrastable Electrocatalysts for Water Splitting
Top Cited Papers
- 14 September 2015
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 137 (44), 14023-14026
- https://doi.org/10.1021/jacs.5b08186
Abstract
Elaborate design of highly active and stable catalysts from Earth-abundant elements has great potential to produce materials that can replace the noble-metal-based catalysts commonly used in a range of useful (electro)chemical processes. Here we report, for the first time, a synthetic method that leads to in situ growth of {2̅10} high-index faceted Ni3S2 nanosheet arrays on nickel foam (NF). We show that the resulting material, denoted Ni3S2/NF, can serve as a highly active, binder-free, bifunctional electrocatalyst for both the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER). Ni3S2/NF is found to give ∼100% Faradaic yield toward both HER and OER and to show remarkable catalytic stability (for >200 h). Experimental results and theoretical calculations indicate that Ni3S2/NF’s excellent catalytic activity is mainly due to the synergistic catalytic effects produced in it by its nanosheet arrays and exposed {2̅10} high-index facets.Funding Information
- National Natural Science Foundation of China (21103065, 21371070, 21373099, 21401066)
- Division of Materials Research (DMR-1508611)
- Ministry of Education of the People's Republic of China (20110061120024, 20130061110020)
This publication has 20 references indexed in Scilit:
- Heazlewoodite, Ni3S2: A Potent Catalyst for Oxygen Reduction to Water under Benign ConditionsJournal of the American Chemical Society, 2015
- Metallic WO2–Carbon Mesoporous Nanowires as Highly Efficient Electrocatalysts for Hydrogen Evolution ReactionJournal of the American Chemical Society, 2015
- Noble metal-free hydrogen evolution catalysts for water splittingChemical Society Reviews, 2015
- Metallic Nickel Nitride Nanosheets Realizing Enhanced Electrochemical Water OxidationJournal of the American Chemical Society, 2015
- Benchmarking Hydrogen Evolving Reaction and Oxygen Evolving Reaction Electrocatalysts for Solar Water Splitting DevicesJournal of the American Chemical Society, 2015
- High-Performance Electrocatalysis Using Metallic Cobalt Pyrite (CoS2) Micro- and NanostructuresJournal of the American Chemical Society, 2014
- Efficient Noble Metal-Free (Electro)Catalysis of Water and Alcohol Oxidations by Zinc–Cobalt Layered Double HydroxideJournal of the American Chemical Society, 2013
- MoS2 Nanoparticles Grown on Graphene: An Advanced Catalyst for the Hydrogen Evolution ReactionJournal of the American Chemical Society, 2011
- A High Yield Synthesis of Ligand-Free Iridium Oxide Nanoparticles with High Electrocatalytic ActivityThe Journal of Physical Chemistry Letters, 2011
- NixCo3−xO4 Nanowire Arrays for Electrocatalytic Oxygen EvolutionAdvanced Materials, 2010