Advance Research in Organic and Inorganic Chemistry
[ ISSN : 2833-3594 ]
Construction of High-Entropy LDH Nanostructures to Promote Alkaline Oxygen Evolution
Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an, 710021, China
Corresponding Authors
Keywords
Abstract
The development of highly active transition metal-based catalysts is a key challenge for improving the efficiency of the Oxygen Evolution Reaction (OER). In this study, a high-entropy layered double hydroxide (HE-LDH) composed of five metals was successfully designed and synthesized using a hydrothermal method. Electrochemical performance tests comparing different metal combinations in high-entropy LDHs revealed that NiCoCuFeAl LDH exhibited an overpotential of only 389 mV at a current density of 10 mA cm?². Moreover, it demonstrated a smaller Tafel slope of 124.4 mV dec?¹. This superior catalytic performance is attributed to the synergistic interactions among the five metals, which optimize the electronic environment. This study offers a promising strategy for designing efficient electrocatalysts with enhanced OER performance.