An efficient bifunctional electrocatalyst for water splitting based on cobalt phosphide

作者：Yang, Libin; Qi, Honglan; Zhang, Chengxiao^*; Sun, Xuping^*

来源：Nanotechnology, 2016, 27(23): 23LT01.

DOI：10.1088/0957-4484/27/23/23LT01

• cobalt phosphide
• nanowire array
• hydrogen evolution reaction
• oxygen evolution reaction
• bifunctional catalysts
• water splitting

The development of highly efficient electrocatalysts for water splitting is critical for various renewable-energy technologies. In this letter, we demonstrate a cobalt phosphide nanowire array grown on a Ti mesh (CoP/TM) behaving as a bifunctional electrocatalyst for water splitting. The CoP/TM electrode delivers 10 mA cm(-2) at an overpotential of 72 mV for the hydrogen evolution reaction (HER) and 310 mV for the oxygen evolution reaction (OER) in 1.0M KOH. Furthermore, its corresponding two-electrode alkaline electrolyzer displays 10 mA cm(-2) at 1.64 V.

• 出版日期2016-6-10
• 单位四川大学; 陕西师范大学