Self-Supported FeNi-P Nanosheets with Thin Amorphous Layers for Efficient Electrocatalytic Water Splitting

• DOI: 10.1021/acssuschemeng.7b04743
• Publication Date: 2018-06-14T16:19:08Z
• Authors: Qing Yan; Tong Wei; Jun Wu; Xueying Yang; Min Zhu; Kui Cheng; Ke Ye; Kai Zhu; Jun Yan; Dianxue Cao; Guiling Wang; Yue Pan
• Keywords: Phosphide; Oxygen evolution; Alkaline water electrolysis; Electrolysis of water

Low-cost and efficient catalytic electrode toward both hydrogen evolution reaction (HER) oxygen (OER) is strongly attractive for overall water splitting. Herein, a 3D bifunctional of FeNi phosphide nanosheets with thin amorphous layer on Nickel foam (FeNi-P/NF) designed via phosphorizing NiFe-layered double hydroxide-coated nickel (FeNi LDH/NF) in red phosphorus vapor at 500 °C. Benefiting from the unique architecture increased exposure accessibility active sites, exhibits excellent electrocatalytic performance HER OER 1.0 M NaOH 102 224 mV low overpotentials to achieve current density 10 mA cm–2, respectively. As electrode, FeNi-P/NF can release cm–2 cell voltage 1.57 V 100 1.82 an alkali electrolyzer, possessing significant durability over h electrolysis high cm–2.