Seval Gündüz

ORCID: 0000-0003-2841-0418
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About
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Research Areas
  • Catalytic Processes in Materials Science
  • Advancements in Solid Oxide Fuel Cells
  • Catalysis and Oxidation Reactions
  • Electrocatalysts for Energy Conversion
  • Fuel Cells and Related Materials
  • Environmental remediation with nanomaterials
  • Nanomaterials for catalytic reactions
  • Catalysts for Methane Reforming
  • Advanced battery technologies research
  • Catalysis and Hydrodesulfurization Studies
  • Electronic and Structural Properties of Oxides
  • Cloud Data Security Solutions
  • Advanced Photocatalysis Techniques
  • Chemical Looping and Thermochemical Processes
  • Ammonia Synthesis and Nitrogen Reduction
  • Catalysis for Biomass Conversion
  • Semiconductor materials and devices
  • CO2 Reduction Techniques and Catalysts
  • Electrochemical Analysis and Applications
  • Gas Sensing Nanomaterials and Sensors
  • Silicone and Siloxane Chemistry
  • Mesoporous Materials and Catalysis
  • Transition Metal Oxide Nanomaterials
  • Microbial Metabolites in Food Biotechnology
  • Covalent Organic Framework Applications

The Ohio State University
2016-2025

Middle East Technical University
2011-2015

Electrochemical routes for ammonia synthesis could offer improved conversion efficiency, compatible integration with renewable energy sources, and a solution to distributed chemical production. In conventional Haber–Bosch process, ammonia, NH3, is produced by reacting N2 H2 at high temperatures pressures. an electrochemical pathway, the production pressurization steps can be bypassed using H2O in ambient-pressure solid-oxide electrolysis cell (SOEC). this study, SOEC composite cathode of...

10.1021/acssuschemeng.2c06520 article EN ACS Sustainable Chemistry & Engineering 2023-03-21

High-temperature water electrolysis in a solid oxide cell (SOEC) can be an efficient way of producing hydrogen, especially if it coupled with renewable energy source. In this study, the performance nickel-doped, A-site deficient lanthanum strontium ferrite (La0.7Sr0.2FeO3) was investigated as SOEC cathode. Electrolysis H2O carried out using cathode stream containing 3% H2O/He at 800 °C and various current densities. It found that La0.7Sr0.2FeO3 has lower Faradaic efficiency for hydrogen...

10.1021/acs.iecr.9b03731 article EN Industrial & Engineering Chemistry Research 2019-11-04

Iron–nitrogen-coordinated carbon-supported (FeNC) catalysts have been explored for application as oxygen depolarized cathode (ODC) that perform reduction reaction (ORR) in electrochemical chlorine production systems. One important requirement ODC is the resistance to poisoning of their ORR active sites presence chloride anions. This work combines use experimental and computational methods study effect exposure FeNC catalyst Electrochemical measurements indicate partially reversible anions...

10.1021/acs.jpcc.0c01407 article EN The Journal of Physical Chemistry C 2020-04-17

In this research, aryl‐bridged polysilsesquioxane (ABPS), an organosilica material, is used as support to synthesize efficient palladium (Pd) catalyst for catalytic hydrogenation of phenol cyclohexanone and cyclohexanol. Techniques such N2 physisorption, NMR, IR, TEM, CO chemisorption were employed characterize the support. ABPS‐supported catalysts showed significantly better conversion than conventional inorganic silica supported catalyst‐ Pd/SBA‐15 commercial activated carbon‐supported...

10.1002/cctc.202401935 article EN ChemCatChem 2025-04-08

In this work, bridged polysilsesquioxanes with varying aromatic content were used as catalyst supports active metal palladium (Pd) for aqueous phase phenol hydrogenation. Alkoxysilane precursors, bis (trimethoxy silyl ethyl) benzene (BTEB) and (tri methoxy silyl) ethane (BTE) co‐condensed by sol‐gel synthesis to vary the of support. Pd supported on aryl polysilsesquioxane (ABPS) showed highest conversion while its non‐aromatic counterpart (Pd/ethylene (EBPS)) exhibited lowest catalytic...

10.1002/cctc.202500344 article EN ChemCatChem 2025-04-17

Ni- and Co-incorporated MCM-41 type mesoporous materials with Ni/Si Co/Si molar ratios of 0.12 were synthesized, characterized, tested in both steam reforming ethanol (SRE) sorption-enhanced (SESRE) reactions. Characterization results showed that Co Ni successfully incorporated well-dispersed the support. catalysts had surface area values 449.0 303.6 m2/g, respectively. They also narrow pore size distributions, average diameters 2.2 1.98 nm, SESRE obtained these situ capture CO2 during...

10.1021/ie201852f article EN Industrial & Engineering Chemistry Research 2011-11-22

La 0.7 Sr 0.2 Ni Fe 0.8 O 3 (LSNF), having thermochemical stability, superior ionic and electronic conductivity, structural flexibility, was investigated as a cathode in SOECs.

10.1039/d1ta07389c article EN Journal of Materials Chemistry A 2021-11-22

Abstract Nitrogen‐doped carbon nanostructures (CN x ) are promising cathode materials as catalysts for the oxygen reduction reaction (ORR) in polymer electrolyte membrane (PEM) fuel cells. Incorporation of chlorine into CN using a facile methodology can lead to significant improvement ORR activity acidic media, confirmed by electrochemical half‐cell measurements. The chlorine‐containing catalyst −Cl) is synthesized soaking powder 0.3 M HCl. analysis near‐edge X‐ray absorption fine structure...

10.1002/celc.201800134 article EN ChemElectroChem 2018-05-08

One of the problems catalytic water treatment systems is that sulfur-containing species present in contaminated have a detrimental effect on performance because strong interactions sulfur with active metal sites. In order to address these problems, our research has focused developing poison-resistant system by using novel material, namely, swellable organically modified silica (SOMS), as catalyst scaffold. Our previous investigations demonstrated developed was resistant chloride poisoning,...

10.1021/acs.iecr.8b05979 article EN Industrial & Engineering Chemistry Research 2019-02-14
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