To this purpose, the present study investigated the possibility of employing non‐noble‐metal‐based electrodes as effective hydrogen evolution reaction (HER) electrocatalysts. Specifically, TiO2 nanotubes (NTs) based electrodes have been synthesized and characterized in comparison with commercial electrodes generally employed in ED processes (i.e. Ti/MMO (mixed metals oxides) electrodes). The preliminary characterization evidenced as greater hydrogen production has been achieved using TiO2 NTs based electrode (as cathodes) rather than the commercial one. Furthermore, considering the remediation/recovery targets of the ED tests performed, employing the TiO2 NTs based electrode higher extraction yields for W and Sn were observed, while comparable yields with the commercial electrode were observed for As and Cu.
|Title of host publication||Electrokinetic Remediation for Environmental Security and Sustainability|
|Editors||Alexandra B. Ribeiro, Majeti Narasimha Vara Prasad|
|Publication status||Published - 19 Mar 2021|
- electrodialytic remediation
- titania nanotubes
- hydrogen evolution reaction electrocatalyst
- critical raw materials recovery