A research team led by Professor WANG Qi from Hefei Institutes of Physical Science （HFIPS）, Chinese Academy of Sciences, has successfully synthesized a heterogeneous Ce@CoFe-LDH electrocatalyst by combining a simple hydrothermal method with rapid electrodeposition. The results were published in Inorganic Chemistry Frontiers.
Electrochemical water splitting is vital for clean hydrogen energy production. The oxygen evolution reaction (OER) in water splitting is slow due to complex electron transfer steps. Noble metal-based nanomaterials like Ru or Ir are effective OER catalysts but face scarcity and stability issues. Developing stable OER electrocatalysts based on transition metals is crucial for large-scale application.
In this research, researchers have successfully created ultrafine Ce(OH)3 nanoparticles that are evenly distributed on the surface of CoFe-LDH nanowires. This formation results in the generation of numerous stable active interfaces. The exchange of electrons between ultrafine Ce(OH)3 nanoparticles and CoFe-LDH nanowires produces an optimal electronic structure on CoFe-LDH's surface. Consequently, Ce@CoFe-LDH demonstrates remarkable efficiency and stability in facilitating OER.
This study gives us new ideas on how to make electrocatalysts that work well for OER so that water can be split on a big scale for clean energy and environmental reasons, according to the team.
From: EurekAlert!
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