@article{Xu2017, author = {Yingying Xu and Sibin Duan and Haoyi Li and Ming Yang and Shijie Wang and Xun Wang and Rongming Wang}, title = {Au/Ni12P5 core/shell single-crystal nanoparticles as oxygen evolution reaction catalyst}, year = {2017}, journal = {Nano Research}, volume = {10}, number = {9}, pages = {3103-3112}, keywords = {oxygen evolution reaction, nickel phosphide, core/shell nanoparticles, interfacial coupling}, url = {https://www.sciopen.com/article/10.1007/s12274-017-1527-1}, doi = {10.1007/s12274-017-1527-1}, abstract = {We have demonstrated the improved performance of oxygen evolution reactions (OER) using Au/nickel phosphide (Ni12P5) core/shell nanoparticles (NPs) under basic conditions. NPs with a Ni12P5 shell and a Au core, both of which have well-defined crystal structures, have been prepared using solution-based synthetic routes. Compared with pure Ni12P5 NPs and Au-Ni12P5 oligomer-like NPs, the core/shell crystalline structure with Au shows an improved OER activity. It affords a current density of 10 mA/cm2 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.} }