Abstract
NixWO2.72 nanorods (NRs) are synthesized by a one-pot reaction of Ni(acac)2 and WCl4. In the rod structure, Ni(II) intercalates in the defective perovskite-type WO2.72 and is stabilized. The NixWO2.72 NRs show the x-dependent electrocatalysis for the oxygen evolution reaction (OER) in 0.1 M KOH with Ni0.78WO2.72 being the most efficient, even outperforming the commercial Ir-catalyst. The synthesis is not limited to NixWO2.72 but can be extended to MxWO2.72 (M = Co, Fe) as well, providing a new class of oxide-based catalysts for efficient OER and other energy conversion reactions.
Original language | English |
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Pages (from-to) | 119-123 |
Number of pages | 5 |
Journal | Green Energy and Environment |
Volume | 2 |
Issue number | 2 |
DOIs | |
State | Published - Apr 2017 |
Funding
This work was supported by the U.S. Army Research Laboratory and the U.S. Army Research Office under grant W911NF-15-1-0147 on “New Composite Catalysts Based on Nitrogen-Doped Graphene and Nanoparticles for Advanced Electrocatalysis”. Part of electron microscopy work used resources of the Center for Functional Nanomaterials, which is a U.S. DOE Office of Science Facility, at Brookhaven National Laboratory under Contract No. DE-SC0012704. This work was supported by the U.S. Army Research Laboratory and the U.S. Army Research Office under grant W911NF-15-1-0147 on “New Composite Catalysts Based on Nitrogen-Doped Graphene and Nanoparticles for Advanced Electrocatalysis”. Part of electron microscopy work used resources of the Center for Functional Nanomaterials, which is a U.S. DOE Office of Science Facility, at Brookhaven National Laboratory under Contract No. DE-SC0012704.
Keywords
- 3d transition metal doping
- Electrocatalysis
- Nanorods
- Oxygen evolution reaction
- Tungsten oxide