Abstract
Au/Ir bimetals are not easy to obtain because alloy phase diagrams are not available for these material combinations (Ronald et al., 2004). Herein, the Au/Ir nanochains (Au/Ir NCs) are synthesized via one-pot, hydrothermal method. By virtue of jagged surface with abundant atomic defects, the Au/Ir NCs are demonstrated much more active than commercial IrO2 electrocatalysts for oxygen evolution reaction under alkaline media. The potential of the Au/Ir NCs sustains 1.53 V vs reversible hydrogen electrode (RHE) with no obvious decease under current density at 10 milliamps per square centimeter, while that of IrO2 increase to 1.65 V vs RHE after stability tests for ca. 32 h. The durability as well as the activity of Au/Ir NCs is attributed to the electronic interaction between Au and Ir, which is confirmed by X-ray photoelectron spectroscopy (XPS).
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.