Au@Co2P core/shell nanoparticles as a nano-electrocatalyst for enhancing the oxygen evolution reaction. Issue 70 (10th December 2019)

• Record Type: Journal Article
• Authors: Zhang, Xiaofang; Shan, Aixian; Duan, Sibin; Zhao, Haofei; Wang, Rongming; Lau, Woon-Ming
• Is Part Of: RSC advances. Volume 9:Issue 70(2019)
• Page Start: 40811
• Page End: 40818
• Publication Date: 2019-12-10
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c9ra07535f
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Au@Co2 P core/shell nanoparticles were designed and prepared to improve the oxygen evolution reaction performance. Abstract : Core/shell nanoparticles (NPs) of Au@Co2 P, each comprising a Au core with a Co2 P shell, were prepared, and shown to efficiently catalyze the oxygen evolution reaction (OER). In particular, Au@Co2 P has a small overpotential of 321 mV at 10 mA cm −2 in 1 M KOH aqueous solution at room temperature, which is about 95 mV less than pure Co2 P. More importantly, the Tafel slope of Au@Co2 P, at 57 mV dec −1, is 44 mV dec −1 lower than that of Co2 P. Hence, Au@Co2 P outperforms Co2 P drastically in practical production when a high current density is required.