Developing hierarchical electrocatalysts for the oxygen evolution reaction (OER) is of great importance for electrochemical hydrogen production.Here,we describe the development of a hierarchical CuO@NiCo layered doubl...Developing hierarchical electrocatalysts for the oxygen evolution reaction (OER) is of great importance for electrochemical hydrogen production.Here,we describe the development of a hierarchical CuO@NiCo layered double hydroxide core–shell nanoarray on copper foil (CuO@NiCo LDH/CF) as a 3D OER electrocatalyst.When tested in 1.0 M KOH,such CuO@NiCo LDH/CF offers superior catalytic activity with a geometrical catalytic current density of 20 mA cm^(−2) at an overpotential of only 256 mV.It also shows strong long-term electrochemical durability to retain its activity for at least 24 h.展开更多
基金supported by the Shanghai Scientific and Technological Innovation Project(No.18JC1410604).
文摘Developing hierarchical electrocatalysts for the oxygen evolution reaction (OER) is of great importance for electrochemical hydrogen production.Here,we describe the development of a hierarchical CuO@NiCo layered double hydroxide core–shell nanoarray on copper foil (CuO@NiCo LDH/CF) as a 3D OER electrocatalyst.When tested in 1.0 M KOH,such CuO@NiCo LDH/CF offers superior catalytic activity with a geometrical catalytic current density of 20 mA cm^(−2) at an overpotential of only 256 mV.It also shows strong long-term electrochemical durability to retain its activity for at least 24 h.
