Bifunctional Fe─Ru─VC Catalyst for Energy Efficient Tandem Alkaline Electrolysis of Hydrazine and 4-nitrophenol.

ABSTRACT: Alternate electrocatalytic reactions can turn pollutants into green fuels, offering an energy-efficient approach. Coupling hydrazine oxidation reaction (HzOR), with 4-nitrophenol hydrogenation (4-NPHR) is especially promising. Here, we report a bifunctional electrocatalyst composed of defect-rich Fe-Ru alloy clusters uniformly anchored on vanadium carbide (Fe─Ru─VC), synthesized via scalable ball milling and thermal annealing. Fe─Ru─VC exhibits excellent electrocatalytic activity toward both HzOR and 4-NPHR, requiring a low overpotential of 145 mV at 10 mA cm^-2 and a favorable Tafel slope of 68.9 mV dec^-1 for HzOR, with stability exceeding 90 h in 1M KOH. For 1 mM 4-NPHR, superior Fe-Ru-VC performance is achieved -7.2 mA cm^-2 at 100 mV, highlighting its hig

SUBMITTER: Mohammadi A 

PROVIDER: S-EPMC12614138 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature