NixWO2.72 nanorods as an efficient electrocatalyst for oxygen evolution reaction

Zheng Xi, Adriana Mendoza-Garcia, Huiyuan Zhu, Miao Fang Chi, Dong Su, Daniel P. Erdosy, Junrui Li, Shouheng Sun

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

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 languageEnglish
Pages (from-to)119-123
Number of pages5
JournalGreen Energy and Environment
Volume2
Issue number2
DOIs
StatePublished - 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

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