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SEMINAIRE LMGP - 28.09.2021 - Dr Sergio BATTIATO

Publié le 16 septembre 2021
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Colloque / Séminaire 28 septembre 2021
Grenoble INP - Phelma
3 parvis Louis Néel - 38000 Grenoble
Accès : TRAM B arrêt Cité internationale
14 H - Salle des Séminaires
2ème étage - LMGP

“Non-noble transition metal based electrocatalysts with high performance for water splitting”

BATTIATO Sergio

BATTIATO Sergio


Dr. Sergio BATTIATO

Post-doc
Dipartimento di Fisica e Astronomia “Ettore Majorana”, Università di Catania



Abstract

One of the major challenges in the field of hydrogen generation from water splitting is the development of earth-abundant, efficient and stable electrocatalysts alternative to the noble metal catalysts (e.g. Pt, Ir, Ru) whose large-scale application is limited by high cost and scarcity. Transition metal compounds have recently sparked considerable attention owing to their low cost, availability and theoretically high catalytic activity. Particularly, nickel-based electrocatalysts have been proved to show enhanced catalytic performance for the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) involved in the water electrolysis. In our study, we report on the fabrication of low cost and efficient nickel-based nanostructured materials by the use of feasible chemical methods such as chemical bath deposition (CBD) and electroless deposition (ELD). The electrochemical investigations show that the present electrocatalysts exhibit a remarkable OER and HER activity in alkaline media, comparable or even superior to that offered by precious metals. These findings suggest that non noble transition metal based compounds are compelling candidates for boosting H2 production through water splitting. Finally, the present study provides a useful platform for the facile design of other efficient non-noble metal electrocatalysts.


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mise à jour le 16 septembre 2021

  • Tutelle CNRS
  • Tutelle Grenoble INP
Université Grenoble Alpes