An amorphous FeMoO4 nanorod array enabled high-efficiency oxygen evolution electrocatalysis in alkaline seawater
Jie Tang, Shengjun Sun, Xun He, Hui Zhang, Chaoxin Yang, Min Zhang, Meng Yue, Hefeng Wang, Yuntong Sun, Yonglan Luo, Sulaiman Alfaifi, Asmaa Farouk, Mohamed S. Hamdy, Xuping Sun, Huiqing Wang, Binwu Ying
Abstract
The development of highly efficient and durable oxygen evolution reaction (OER) catalysts for seawater electrolysis is of great importance for applications. Here, an amorphous FeMoO4 nanorod array on Ni foam is reported as a highly active OER electrocatalyst in alkaline seawater, requiring only overpotentials of 303 and 332 mV to achieve 100 and 300 mA·cm−2, respectively. Moreover, it shows strong long-term electrochemical durability for at least 50 h.
Topics & Concepts
ElectrocatalystOxygen evolutionSeawaterNanorodElectrolysisAmorphous solidElectrochemistryCatalysisMaterials scienceChemical engineeringElectrolysis of waterInorganic chemistryNanotechnologyChemistryElectrodeOceanographyPhysical chemistryOrganic chemistryElectrolyteGeologyEngineeringElectrocatalysts for Energy ConversionFuel Cells and Related MaterialsAdvanced battery technologies research