Sulfur-doped Cu3P∣S electrocatalyst for hydrogen evolution reaction. (3rd April 2019)

• Record Type: Journal Article
• Authors: Xu, Tianyi; Wei, Shuting; Zhang, Xiaolin; Zhang, Dantong; Xu, Yanchao; Cui, Xiaoqiang
• Is Part Of: Materials research express. Volume 6:Number 7(2019)
• Publication Date: 2019-04-03
• Subjects: Cu3P∣S -- sulfur doping -- hydrogen evolution reaction; Materials science -- Research -- Periodicals; Materials science -- Periodicals; 620.11
• DOI: 10.1088/2053-1591/ab1293
• Languages: English
• ISSNs: 2053-1591

Abstract

Abstract: Nonnoble metal electrocatalysts are in high demand to replace Pt-based catalysts for the hydrogen evolution reaction (HER) in sustainable energy systems. It is a challenge to develop earth-abundant electrodes with high current density at a low potential. Here, we developed a novel strategy for synthesizing sulfur-doped copper phosphorus nanorods (Cu3 P∣S NR) for efficient HER catalysis in acidic water electrolyzers. Cu3 P∣S exhibits better activity than both Cu2 S and Cu3 P. The as-prepared electrocatalyst requires an overpotential of 223 mV to achieve a benchmark of 10 mA cm −2 and has a very large exchange current density and high turnover frequency (TOF) in acid media.