An electrochemical bifunctional sensor for the detection of nitrite and hydrogen peroxide based on layer-by-layer multilayer films of cationic phthalocyanine cobalt(ii) and carbon nanotubes

Binder-free multilayer films composed of phthalocyanine and carbon nanotubes were constructed by the layer-by-layer electrostatic assembly and applied for the electrochemical detection of NO2− and H2O2.