NiO Nanostructures Grown on Ni Foam as Efficient Electrocatalysts for Oxygen Evolution Reaction
Paper ID : 1502-ICNS
Authors:
Somayeh Sepehri *1, Ahmad Ahmadi Daryakenari2, shahrbano malakdar3
1Guilan University
2Division of nanotechnology, Guilan university
3nano technology, Faculty of Engineering, guilan, iran
Abstract:
Fabrication of low-cost electrocatalysts for water splitting is vital to generate hydrogen and oxygen economically. Herein, we present low-price NiO nanostructures grown on the Ni Foams with sufficiently high oxygen evolution reaction (OER) activity. A single-step annealing process at the different temperatures on the bare nickel foams lead to synthesize the nickel oxide nanostructures. The best electrocatalyst performance is for the electrode, which is heated at 400°C and generate current densities of 10 mA/cm2 at 1.59 mV potential versus reversible hydrogen electrode (RHE) under alkaline condition. Different material characterization methods and electrochemical analysis are carried out to explain enhancement in electrocatalyst performance of the electrode fabricated at 400°C.
Keywords:
NiO nanostructures, Oxygen evolution reaction, Thermal annealing
Status : Abstract Accepted (Poster Presentation)