Core/shell nanoparticles (NPs) of Au@CoP, each comprising a Au core with a CoP shell, were prepared, and shown to efficiently catalyze the oxygen evolution reaction (OER). In particular, Au@CoP has a small overpotential of 321 mV at 10 mA cm in 1 M KOH aqueous solution at room temperature, which is about 95 mV less than pure CoP. More importantly, the Tafel slope of Au@CoP, at 57 mV dec, is 44 mV dec lower than that of CoP. Hence, Au@CoP outperforms CoP drastically in practical production when a high current density is required.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9076247 | PMC |
| http://dx.doi.org/10.1039/c9ra07535f | DOI Listing |
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