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Driving oxygen evolution reaction (OER) at extremely low overpotential and the blockage of oxygen gas inside the catalytic material leads to the deactivation of catalytic activity, therefore it is an essential step in electrochemical energy conversion systems, but still very challenging task. The clay minerals including bentonite and kaolinite are rich with plenty of active centers and favorable chemical composition for the catalysis applications but limited by the insulating properties, thus they cannot be used as an electrode material for the water splitting. The unique presence of clay minerals in the form of pencil graphite rod (PGR) and its attractive architecture enabled us to exploit advantageous features and use them as an in situ electrode for growth of metal oxide nanostructures for the electrolysis applications. The naturally inherent presence of SiO2 favors the catalytic properties and durability of the electrode whereas …
Publication date: 
23 Dec 2021

Zafar Hussain Ibupoto, Aneela Tahira, Aqeel Ahmed Shah, Umair Aftab, Muhammad Yameen Solangi, Jaleel Ahmed Leghari, Abdul Hanan Samoon, Adeel Liaquat Bhatti, Muhammad Ali Bhatti, Raffaello Mazzaro, Vittorio Morandi, Muhammad Ishaq Abro, Ayman Nafady, Abdullah M Al-Enizi, Mélanie Emo, Brigitte Vigolo

Biblio References: 
International Journal of Hydrogen Energy