Journal
APPLIED CLAY SCIENCE
Volume 246, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.clay.2023.107195
Keywords
Water oxidation; Ethylene glycol; Nest -like morphology; Electrocatalyst; Layered double hydroxide; NiFe-LDH
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In this work, nest-like nickel iron-layered double hydroxide (NiFe-LDH) nanomaterials were successfully prepared using the ethylene glycol-assisted hydrothermal strategy. It was found that the NiFe-LDH nanomaterials exhibited excellent oxygen evolution reaction (OER) activity in neutral media, which was attributed to their modified morphology, good crystallinity, and high surface area.
Water oxidation is an optimistic pathway for hydrogen generation with high quality. In this work, nest-like nickel iron-layered double hydroxide (NiFe-LDH) nanomaterials were successfully prepared using the ethylene glycol-assisted hydrothermal strategy. Morphological and structural studies showed that in the assistance of ethylene glycol (EG), morphologies of the NiFe-LDH nanomaterials were modified, and their surface areas were enhanced. The nano nest-like NiFe-LDH-EG3 derived with 3.0 mL of EG exhibited an excellent oxygen evolution reaction (OER) activity with a low overpotential of about 400 mV at a current density of 10 mA/cm2 and a Tafel slope of 79 mV/dec in neutral media, and such an outstanding OER activity was attributed to the modified morphology, good crystallinity, and high surface area of the nest-like NiFe-LDH-EG3.
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