Bimetallic metal–organic frameworks enable tandem catalysis for efficient electrocatalytic nitrate reduction and energy storage in Zn–NO3− batteries

Abstract

A bimetallic Cu/Fe-NDC pre-catalyst enables tandem catalysis to suppress nitrite release, achieving a 92.5% NH₃ Faradaic efficiency and a yield of 3.8 mg h⁻¹ mg_cat⁻¹. The assembled Zn–NO₃⁻ battery delivers a peak power density of 12.5 mW cm⁻², demonstrating its potential for nitrate remediation and power output.