Abstract
Developing highly efficient and cost-effective oxygen evolution reaction (OER) catalysts is pivotal for advancing sustainable energy storage and conversion technologies. Herein, NiFe/MnNiCo-LDH was successfully prepared by in-situ growth method. The OER performance of this composite material had been significantly enhanced through bimetallic atom modification and cation doping strategies. These modifications not only enhanced the electronic conductivity but also regulated the electron distribution within the catalyst structure. As a result, NiFe/MnNiCo-LDH can reach a current density of 10 mA cm−2 at an overpotential of only 227 mV in the OER reaction. Moreover, the catalyst exhibited remarkable durability and maintained its high performance over an extended period of 48 h during the water splitting reaction. In this work, the potential of dual modification methods for optimizing catalytic properties of OER materials was investigated.
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