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- Title
Au/NiP core/shell single-crystal nanoparticles as oxygen evolution reaction catalyst.
- Authors
Xu, Yingying; Duan, Sibin; Li, Haoyi; Yang, Ming; Wang, Shijie; Wang, Xun; Wang, Rongming
- Abstract
We have demonstrated the improved performance of oxygen evolution reactions (OER) using Au/nickel phosphide (NiP) core/shell nanoparticles (NPs) under basic conditions. NPs with a NiP shell and a Au core, both of which have well-defined crystal structures, have been prepared using solution-based synthetic routes. Compared with pure NiP NPs and Au-NiP oligomer-like NPs, the core/shell crystalline structure with Au shows an improved OER activity. It affords a current density of 10 mA/cm at a small overpotential of 0.34 V, in 1 M KOH aqueous solution at room temperature. This enhanced OER activity may relate to the strong structural and effective electronic coupling between the single-crystal core and the shell.
- Publication
Nano Research, 2017, Vol 10, Issue 9, p3103
- ISSN
1998-0124
- Publication type
Article
- DOI
10.1007/s12274-017-1527-1