I.V. Yentekakis

ORCID: 0000-0003-3502-8655
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About
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Research Areas
  • Catalytic Processes in Materials Science
  • Catalysis and Oxidation Reactions
  • Electrocatalysts for Energy Conversion
  • Catalysts for Methane Reforming
  • Ammonia Synthesis and Nitrogen Reduction
  • Advancements in Solid Oxide Fuel Cells
  • Catalysis and Hydrodesulfurization Studies
  • Electrochemical Analysis and Applications
  • Fuel Cells and Related Materials
  • Industrial Gas Emission Control
  • Nanomaterials for catalytic reactions
  • Gas Sensing Nanomaterials and Sensors
  • Carbon Dioxide Capture Technologies
  • Carbon dioxide utilization in catalysis
  • Advanced Photocatalysis Techniques
  • Semiconductor materials and devices
  • Zeolite Catalysis and Synthesis
  • Electronic and Structural Properties of Oxides
  • CO2 Reduction Techniques and Catalysts
  • Chemical Looping and Thermochemical Processes
  • Luminescence Properties of Advanced Materials
  • Methane Hydrates and Related Phenomena
  • Sulfur Compounds in Biology
  • Metal-Organic Frameworks: Synthesis and Applications
  • Hydrocarbon exploration and reservoir analysis

Technical University of Crete
2015-2024

Foundation for Research and Technology Hellas
1998-2024

FORTH Institute of Petroleum Research
2021-2022

University of Western Macedonia
2009

Centre for Research and Technology Hellas
2009

University of Patras
1992-2001

University of Cambridge
1995-1997

Bridge University
1995

Princeton University
1989

CO2 methanation has great potential for the better utilization of existing carbon resources via transformation spent (CO2) to synthetic natural gas (CH4). Alkali and alkaline earth metals can serve both as promoters catalysts adsorbent phases upon combined capture CO2. Their promotion effect during dioxide mainly relies on their ability generate new basic sites surface metal oxide supports that favour chemisorption activation. However, suppression activity also occur under certain...

10.3390/catal10070812 article EN Catalysts 2020-07-21

Biogas is widely available as a product of anaerobic digestion urban, industrial, animal and agricultural wastes. Its indigenous local-base production offers the promise dispersed renewable energy source that can significantly contribute to regional economic growth. composition typically consists 35-75% methane, 25-65% carbon dioxide, 1-5% hydrogen along with minor quantities water vapor, ammonia, sulfide halides. Current utilization for heating lighting inefficient polluting, and, in case...

10.3389/fenvs.2017.00007 article EN cc-by Frontiers in Environmental Science 2017-02-16

Methane was oxidatively coupled to ethylene with an yield up 85 percent and a total C(2) hydrocarbon 88 in gas recycle high-temperature (800 degrees C) electrocatalytic or catalytic reactor where the recycled passes continuously through molecular sieve trap loop. Oxygen is supplied either electrocatalytically by means of solid electrolyte support silver-based catalyst phase. The products are obtained subsequent heating trap. selectivity for methane conversion 97 percent.

10.1126/science.264.5165.1563 article EN Science 1994-06-10

Iridium nanoparticles deposited on a variety of surfaces exhibited thermal sintering characteristics that were very strongly correlated with the lability lattice oxygen in supporting oxide materials. Specifically, higher ions support, greater resistance to an oxidative environment. Thus γ-Al2O3 as rapid and extensive occurred. In striking contrast, when supported gadolinia-ceria alumina-ceria-zirconia composite, Ir underwent negligible sintering. keeping this trend, behavior found...

10.1016/j.apcatb.2016.04.011 article EN cc-by Applied Catalysis B Environment and Energy 2016-04-09

In the work presented herein, a joint experimental and theoretical approach has been carried out to obtain an insight into desulfurization performance of industrial molecular sieve (IMS), resembling zeolitic structure with morphology cubic crystallites high surface area 590 m2 g–1, view removing H2S from biogas. The impact temperature, inlet concentration, gas matrix, regeneration cycles on IMS was thoroughly probed. adsorption equilibrium, sorption kinetics, thermodynamics were also...

10.1021/acsomega.0c06157 article EN cc-by-nc-nd ACS Omega 2021-05-28

The thermal sintering under oxidative conditions of Rh nanoparticles supported on oxides characterized by very different oxygen storage capacities (OSC) and labilities was studied at 750 850 °C. Under conditions, significant particle growth occurred for Rh/γ-Al2O3 (up to 120% °C). In striking contrast, Rh/ACZ (alumina–ceria–zirconia) Rh/CZ (ceria–zirconia) exhibited marked resistance sintering, even moderate (ca. −10% °C) pronounced −60% redispersion the Rh. A model is proposed based a...

10.3390/catal9060541 article EN Catalysts 2019-06-17
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