A5045371065- Catalytic Processes in Materials Science
- Catalysis and Oxidation Reactions
- Electrocatalysts for Energy Conversion
- Phase Equilibria and Thermodynamics
- Aerogels and thermal insulation
- Catalysts for Methane Reforming
- Supercapacitor Materials and Fabrication
- Nanomaterials for catalytic reactions
- Industrial Gas Emission Control
- Ammonia Synthesis and Nitrogen Reduction
- Zeolite Catalysis and Synthesis
- Nanoporous metals and alloys
- nanoparticles nucleation surface interactions
- Silicone and Siloxane Chemistry
- Surface Modification and Superhydrophobicity
- Catalysis for Biomass Conversion
- Carbon Dioxide Capture Technologies
- Polymer Foaming and Composites
- Carbon Nanotubes in Composites
- Ionic liquids properties and applications
- Mesoporous Materials and Catalysis
- Advanced Photocatalysis Techniques
Koç University
2016-2025
Bioengineering (Switzerland)
2014-2018
Paul Scherrer Institute
2014-2018
ETH Zurich
2014-2018
Ford Otosan (Turkey)
2018
Charles Humbert 8
2018
Institute for Biomedical Engineering
2014
Abstract Direct partial oxidation of methane into methanol is a cornerstone catalysis. The stepped conversion currently involves activation at high temperature and reaction with decreased temperature, which limits applicability the technique. first implementation copper‐containing zeolites in production directly from reported, using molecular oxygen under isothermal conditions 200 °C. Copper‐exchanged zeolite activated oxygen, reacts methane, subsequently extracted steam repeated cyclic...
Successive cycles over Cu-mordenite for the conversion of methane to methanol provided higher yields.
Abstract Direct partial oxidation of methane into methanol is a cornerstone catalysis. The stepped conversion currently involves activation at high temperature and reaction with decreased temperature, which limits applicability the technique. first implementation copper‐containing zeolites in production directly from reported, using molecular oxygen under isothermal conditions 200 °C. Copper‐exchanged zeolite activated oxygen, reacts methane, subsequently extracted steam repeated cyclic...
Cu supported on SiO2 can be used to directly convert methane methanol in a stepwise process with no intrinsic need for zeolite support. Effects of parameters such as the O2 activation temperature, time, CH4 reaction partial pressure (pCH4), and wt % yield were investigated. Increasing temperature 200–800 °C range significantly improved yield, when carried out at 800 °C, 11.5 μmol/gcatalyst was obtained after 200 sample 2 Cu. Yield per mole increased exponentially from 1.0 59.1 mmol decreased...
Supercritical fluid-based technologies are increasingly being used to develop novel functional nanostructured materials or improve the properties of existing ones. Among these, supercritical deposition (SCD) is an emerging technique incorporate metals on supports. It has been deposit a wide variety single multi-metallic morphologies such as highly dispersed species, nanoparticles, nanorods and conformal films high surface area supports, polymers crystalline substrates. SCD also attracting...
Carbon aerogel (CA) supported Pt–Cu bimetallic nanoparticles were synthesized via simultaneous adsorption of bis(1,1,1,3,5,5,6,6,6-nonafluorohexane-2,4-diiminate)copper (CuDI6) and dimethyl(1,5-cyclooctadiene)platinum(II) (Pt(cod)me2) onto CAs in the presence supercritical carbon dioxide (scCO2) subsequent thermal conversion at ambient pressure. Binary isotherms metal precursors on scCO2 measured 35 °C 10.6 MPa by analyzing fluid phase concentrations a batch system could be predicted from...
Pt/Al2O3 catalysts prepared via supercritical deposition (SCD), with CO2, wet impregnation (WI) methods and a selected benchmark catalyst, were evaluated for the dehydrogenation of perhydro-dibenzyltoluene (H18-DBT) at 300 °C in batch reactor. After ten runs, average performance catalyst using SCD was highest compared to WI-prepared catalysts. The pre-treatment product (dibenzyltoluene) indicated that deactivation observed is mainly due adsorbed H0-DBT blocking active sites reactant...
The aim of this study is to investigate the activity and stability carbon aerogel‐supported platinum electrocatalysts in hydrogen evolution reaction, compared current solutions based on black. Self‐synthesized aerogels (pyrolyzed cellulose, chitosan‐based aerogels) with multiscale porosity high overall specific surface area (up ≈2500 m 2 g −1 ), as well Vulcan XC‐72R supports were loaded via supercritical deposition (SCD) nanoparticles (mean particle diameter ≈1.3–2.0 nm, 2.8–3.8 wt% Pt...
Aerogels are a unique class of materials due to their low density, high porosity, surface area, and an open interconnected pore structure. can be organic, inorganic hybrid with plethora chemistries. Aerogel-based products for thermal insulation already in the market many studies being conducted laboratories around world develop aerogel-based other applications including catalysis, adsorption, separations, drug delivery. On hand, bimetallic nanoparticles dispersed on area carriers, which have...
Abstract Carbon aerogel and Vulcan supported PtCu electrocatalysts were prepared using the simultaneous sequential in situ supercritical deposition (SCD) method CO 2 followed by thermal annealing electrochemical dealloying. Before dealloying, annealed SCD had a more uniform composition nanoparticles whereas led to with Cu enrichment on surface. Upon PtCu/CA electrocatalyst an enhanced ESA of 159.4 m g −1 due synergistic effects nanoparticle size nanoparticles. All dealloyed higher mass...
Copper-exchanged mordenite prepared by supercritical ion exchange (SCIE) and aqueous (AIE) were investigated in stepwise conversion of methane to methanol. Increasing the oxygen activation temperature reaction time enhances methanol yield copper-exchanged SCIE (Cu-MORS). The reducibility Cu-MORS was compared with those Cu-MORA using H2-TPR. It demonstrated for first that deconvoluted H2-TPR profile coupled effects Cu loading on data can be used distinguish active sites from inactive ones...