Electrified membranes (EMs) have the potential to address inherent limitations of conventional membrane technologies. Recent studies have demonstrated that EMs exhibit enhanced functions beyond sep...

Electrified Membranes for Water Treatment Applications

Recent discoveries in the reaction mechanism of heterogeneous electrocatalytic nitrate reduction

Electrocatalytic nitrate/nitrite reduction to ammonia synthesis using metal nanocatalysts and bio-inspired metalloenzymes

https://lib.dr.iastate.edu/cgi/viewcontent.cgi?article=1471&context=cbe_pubs

Electrocatalytic Nitrate Reduction on Oxide-Derived Silver with Tunable Selectivity to Nitrite and Ammonia

Industrial-scale ammonia (NH3) production mainly relies on the energy-intensive and environmentally unfriendly Haber-Bosch process. Such issue can be avoided by electrocatalytic N2 reduction which however suffers from limited current efficiency and NH3 yield. Herein, we demonstrate ambient NH3 production via electrochemical nitrite (NO2−) reduction catalyzed by a CoP nanoarray on titanium mesh (CoP NA/TM). When tested in 0.1 M PBS (pH = 7) containing 500 ppm NO2−, such CoP NA/TM is capable of affording a large NH3 yield of 2,260.7 ± 51.5 µg·h−1·cm−2 and a high Faradaic efficiency of 90.0 ± 2.3% at −0.2 V vs. a reversible hydrogen electrode. Density functional theory calculations reveal that the potential-determining step for NO2− reduction over CoP (112) is *NO2 → *NO2H.

Ambient ammonia production via electrocatalytic nitrite reduction catalyzed by a CoP nanoarray

Nitrite (NO2–) is an abundant contaminant in nature that threatens human health A catalytic process that converts NO2– to less harmful products has been proven to be an effective strategy for NO2–

/pdf/cuxir1-x-nanoalloy-catalysts-achieve-near-100-selectivity-ogvtgq4s9e.pdf

CuxIr1–x Nanoalloy Catalysts Achieve Near 100% Selectivity for Aqueous Nitrite Reduction to NH3

Nitrate (NO3–) has impacted more groundwater supplies than any other pollutant in the world. It is currently removed at water treatment plants by ion exchange, which is effective but comes at a ste...

Factors Impeding Replacement of Ion Exchange with (Electro)Catalytic Treatment for Nitrate Removal from Drinking Water

A parallel-plate thin-layer (PPTL) flow reactor with potential control and custom-made cathode of Pd–In modified activated carbon cloth was developed for electrocatalytic removal of nitrite from wa...

Scalable Reactor Design for Electrocatalytic Nitrite Reduction with Minimal Mass Transfer Limitations

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CuxIr1–x Nanoalloy Catalysts Achieve Near 100% Selectivity for Aqueous Nitrite Reduction to NH3

Factors Impeding Replacement of Ion Exchange with (Electro)Catalytic Treatment for Nitrate Removal from Drinking Water

Scalable Reactor Design for Electrocatalytic Nitrite Reduction with Minimal Mass Transfer Limitations