Time: 11:30 to 12:00
Venue: Virtual Seminar
Address: New Borg El-Arab City, Alexandria, Egypt.
Organizer: Prof. Satoshi Goto (VPR)
Mrs. Shrouk Mahmoud (VPR Assistant) :
Prof. Mohamad Mohamad Ayad, E-JUST
Abstract: Designing powerful energy-storage/delivery systems via electrochemical capacitors (ECs) or supercapacitors with much high specific power and energy has become an attractive research topic. The capacitance of supercapacitors generally comes from two energy-storage mechanisms: (1) the electrical double-layer charge/discharge, and (2) the surface redox reactions of electroactive materials, which are used in the so-called electrical double-layer capacitors (EDLCs) and (redox) pseudocapacitors, respectively. The advantages of EDLCs could become even greater if their electrodes were properly optimized with respect to the pore size, specific surface area (SSA) and the well-defined nanostructures. Nanoporous carbons (NPCs) with large SSA can be achieved by a simple carbonization procedure of carefully selected carbon precursors, such as metal-organic frameworks (MOFs). Our proposed research project combines new hollow nanoporous hybrid carbons (HNHCs) with their application as electrodes for EDLCs. We believe that our HNHCs with large SSA and high nanoporosity achieved through carbonization of zeolitic imidazolate frameworks (ZIFs, well-known MOFs) could exhibit promising electrochemical capacitances in both acidic aqueous and organic electrolytes.
Biography: Mohamad Ayad, Professor of Physical Chemistry at the Institute of Basic and Applied Sciences at Egypt-Japan University of Science and Technology (E-JUST), Alexandria, Egypt. He also received many fellowships such as British council, Fulbright, Royal society, DFG, JSPS invited professor, and Chinese Academy of Science invited professor and many prizes including the State Encouragement Award (1995) and State Awards of Excellence in Advanced Technology Sciences (2016), The Academy of Scientific Research and Technology, EGYPT. He is a fellow of IUPAC.
The application of nanostructured conducting polymer and mesoporous materials in sensors, catalysis, drug carriers, efficient adsorbents, etc