Cu/(Cu(OH)2-CuO) core/shell nanorods array: in-situ growth and application as an efficient 3D oxygen evolution anode. (1st May 2015)

• Record Type: Journal Article
• Authors: Cheng, Ningyan; Xue, Yurui; Liu, Qian; Tian, Jingqi; Zhang, Lixue; Asiri, Abdullah M.; Sun, Xuping
• Is Part Of: Electrochimica acta. Volume 163(2015)
• Page Start: 102
• Page End: 106
• Publication Date: 2015-05-01
• Subjects: copper(II) hydroxide/oxide -- nanorods array -- in situ -- oxygen evolution -- electrocatalysis; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2015.02.099
• Languages: English
• ISSNs: 0013-4686

Abstract

Abstract: In this paper, we develop a novel strategy toward the in-situ growth of core/shell nanorods array consisting of Cu(OH)2 -CuO nanosheets as the shell and Cu as the core on Cu foil [Cu/(Cu(OH)2 -CuO) NA/CF]. As an integrated 3D non-noble-metal oxygen evolution anode, the Cu/(Cu(OH)2 -CuO) NA/CF shows high catalytic activity with an onset overpotential of 350 mV and a Tafel slope of 76 mV/dec. It needs an overpotential of 417 mV to drive current density of 10 mA/cm 2 and maintains its catalytic activity for at least 22 h. The attractive performances make it promising candidate as a future high-performance catalyst for applications.