Efficient electrocatalytic reduction of nitrite species on zeolite modified electrode with Cu-ZSM-5.

Highlights: [•] Cu-ZSM-5 was immobilized on glassy carbon electrode obtained so-called ZME. [•] The redox couple Cu2+/Cu+ acts like charge mediator in the reduction of nitrite. [•] The copper inside of zeolite framework show high catalytic activity toward nitrite reduction. [•] The acidity necessary for the electrochemical reduction of nitrite was provided by the zeolite. [ABSTRACT FROM AUTHOR]