Christos Trapalis, Ph.D.—Director of Research and Head of “Nanofunctional and Nanocomposite Materials Laboratory”, NCSR Demokritos. His scientific interests are focused on nanoscience and nanotechnology, carbon-based materials, functionalized graphene, and graphene oxide, 2D heterostructures, nanostructured powders and coatings, visible light active photocatalysts for NOx removal, hydrogen production, and hybrid organic–inorganic materials. Christos taught “Physical Chemistry”, “Technology of Polymers”, and Technology of Glass and Ceramics” at HTEI Athens (1994-2004). Christos was elected Prof. of “Advanced Materials” at the Department of Products Design Engineering, AEGEAN University (2004-8). Christos also taught “Physical Chemistry” (2009-14) and "Anti-pollution processes" (2020 - now) at the Hellenic Open University. Over the last 15 years, he has participated in more than 20 research programs, coordinating more than 15, and raised more than EUR 2.5M for NCSR Demokritos. Christos is a reviewer of more than 40 scientific journals with more than 140 publications in peer-reviewed journals, 5900 citations, 5 patents, h-factor 41, and i10-index 82.