Dr. Theodore Steriotis' research priorities focus in the synthesis and characterization of a wide range of porous materials and membranes (inorganic, polymer and hybrid) for environmental, energy and industrial applications. He has extended experience in experimental techniques in the field of sorption, diffusion and (X-ray or Neutron) scattering as well as in-situ combinations of the techniques (e.g. sorption with scattering). Significant efforts have also been devoted to numerical simulation for the modeling of materials and processes by either molecular or mesoscopic techniques.

In the last five year Dr. Steriotis' group has been very active in the field of solid hydrogen storage. Specific emphasis has been placed on the:

• Development and characterization of novel carbon structures (e.g. CNTs, carbon cones, templated carbons, carbon foams, carbon aerogels etc.),
• Investigation of carbon based hybrids (e.g. metal doped carbons, carbon infiltrated complex hydrides etc) as well as the
• Study of Metal-Organic-Frameworks (MOFs) by means of hydrogen sorption with in-situ neutron diffraction.

Recent funded projects

• Integrated Project NESSHY (Novel Efficient Solid Storage for Hydrogen, Proj. Number: 518271) partly funded by FP6 (EC Funding for NCSRD: 890.000 euro, Assistant coordinator Th. Steriotis). NESSHY congregates all current European actions on solid storage of hydrogen.
• STREP HYCONES (Hydrogen Storage in Carbon Cones, Contract No: NMP3-CT-2006-032970) partly funded by FP6 (EC Funding for NCSRD: 334.000 €, Coordinator Th. Steriotis). The project was recently concluded and aimed at the development and H2 storage assessment of a new advanced material, namely carbon cones.
• Small to medium scale collaborative project NANOHY (Novel Nanocomposites for Hydrogen Storage Applications, Grant Agreement No 210092), funded by FP7 (EC funding for NCSRD: 214.250). The project started on January 2008 and will be concluded by the end of 2011. The main aim is to develop and assess the Hydrogen storage properties of complex hydrides-carbon nanocomposites.

Dr. Theodore Steriotis is:

• Leader of the project “Hydrogen storage in metal doped carbons” of the IEA (International Energy Agency) Task 22.
• Head of Scientific Council of the Inst. Physical Chemistry, NCSR “Demokritos”.
• Member of the Helmoltz-Zentrum-Berlin (former Hahn-Meitner Institute) Scientific Committee
• Invited Reviewer of European Commission (FP6, FP7), Science and Technology Foundation- Portugal (Fundação para a Ciência e a Tecnologia - FCT) – Research Promotion Foundation of Cyprus, European Science Foundation (ESF-EUROCORES)
• Greek National Contact Point for FP7 Theme 6 “Environment (including Climate Change)

Recent Selected Publications

1. A. Bakandritsos, E. Kouvelos, Th. Steriotis, D. Petridis, Aqueous and Gaseous Adsorption from Montmorillonite-Carbon Composites and from Derived Carbons, Langmuir, 21(6), 2349-2355 (2005).
2. M.E. Kainourgiakis, Th. A. Steriotis, E.S. Kikkinides, G.Ch. Charalambopoulou, J.D.F. Ramsay, A.K. Stubos, Combination of small angle neutron scattering data and mesoscopic simulation techniques as a tool for the structural characterization and prediction of properties of bi-phasic media, Chemical Physics 317, 298–311(2005).
3. E. S. Kikkinides, M. Konstantakou, M. C. Georgiadis, Th. A. Steriotis, A. K. Stubos, “Multiscale Modeling and Optimization of H₂ Storage Using Nanoporous Adsorbents”, AIChE Journal, 52 (8), 2964-2977 (2006).
4. A.B. Bourlinos, Th. A. Steriotis, M. Karakassides, Y. Sanakis, V. Tzitzios, C. Trapalis, E. Kouvelos and A. Stubos, “Synthesis, characterization and gas sorption properties of a molecularly-derived graphite oxide-like foam”, Carbon, 45 (4), 852-857 (2007).
5. A. Bakandritsos, A.B. Bourlinos, , V. Tzitzios, N. Boukos, E. Devlin, T.Steriotis, V. Kouvelos, D. Petridis, “Biopolymer networks for the solid-state production of porous magnetic beads and wires”, Advanced Functional Materials 17 (8), 1409-1416 (2007).
6. Th. A. Steriotis, K. L. Stefanopoulos, F. K. Katsaros, R. Gläser, A. C. Hannon and J. D. F. Ramsay, “In situ neutron diffraction study of adsorbed carbon dioxide in a nanoporous material: Monitoring the adsorption mechanism and the structural characteristics of the confined phase”, Phys. Rev. B 78, 115424 (1-10) (2008).
7. C. Zlotea, P. Moretto and Th. Steriotis, “A round robin characterisation of the hydrogen sorption properties of a carbon based material”, Int. Journal of Hydrogen Energy, 34, 3044-3057 (2009).
8. A.B. Bourlinos, V. Georgakilas, R. Zboril, Th.A. Steriotis and A.K. Stubos, Liquid-Phase Exfoliation of Graphite Towards Solubilized Graphenes, Small, 5(16), 1841-1845 (2009).
9. A. Gotzias, H. Heiberg-Andersen, M. Kainourgiakis, Th. Steriotis, Grand Canonical Monte Carlo Simulations of Hydrogen Adsorption in Carbon Cones, Appl. Surf. Sci., 256(17), 5226-5231 (2010)
10. V. Georgakilas, A.B. Bourlinos, R. Zboril, Th. A. Steriotis, P. Dallas , A.K. Stubos and Ch. Trapalis, Organic functionalisation of graphenes, Chem. Commun. 46 (10), 1766-1768 (2010).