【摘 要】
：
Developing high performance anode catalysts for oxygen evolution reaction (OER) and hydrazine oxidation reaction (HzOR) at large current density is an efficient pathway to produce hydrogen.Herein,we synthesize a FeWO4-WO3 heterostructure catalyst growing
【机 构】
：
College of Chemistry and Chemical Engineering,Key Laboratory of New Processing Technology for Nonfer
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Developing high performance anode catalysts for oxygen evolution reaction (OER) and hydrazine oxidation reaction (HzOR) at large current density is an efficient pathway to produce hydrogen.Herein,we synthesize a FeWO4-WO3 heterostructure catalyst growing on nickel foam (FeWO4-WO3/NF) by a combination of hydrothermal and calcination method.It shows good catalytic activity with ultralow potentials for OER (η10 =1.43 V,η1.000 =1.56 V) and HzOR (η10 =-0.034 V,η1.000 =0.164 V).Moreover,there is little performance degradation after being tested for 100 h at 1,000 (OER) and 100 (HzOR) mA·cm-2,indicating good stability.The superior performance could be attributed to the wolframite structure and heterostructure:The former provides a high electrical conductivity to ensure the electronic transfer capability,and the later induces interfacial electron redistribution to enhance the intrinsic activity and stability.The work offers a brand-new way to prepare good performance catalysts for OER and HzOR,especially at large current density.
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