Electrocatalytic dechlorination of 2,4-dichlorophenoxyacetic acid using nanosized titanium nitride doped palladium/nickel foam electrodes in aqueous solutions.

Highlights: [•] Effective electrocatalytic dechlorination of 2,4-D was achieved. [•] Dechlorination efficiency was enhanced by nTiN doped in Pd layer on the electrode. [•] nTiN doping content and Pd loading influenced the dechlorination efficiency. [•] Hydrogen adsorption balance existed between two phases in Pd layer. [•] Active hydrogen atom [H] could be stored in Pd lattice for a period of time. [Copyright &y& Elsevier]