A5040800804- Ammonia Synthesis and Nitrogen Reduction
- Hydrogen Storage and Materials
- Nanomaterials for catalytic reactions
- Thermal and Kinetic Analysis
- Thermochemical Biomass Conversion Processes
- Petroleum Processing and Analysis
- Zeolite Catalysis and Synthesis
- Asymmetric Hydrogenation and Catalysis
- Catalytic Processes in Materials Science
- Hybrid Renewable Energy Systems
- Hydrocarbon exploration and reservoir analysis
- Catalysis and Hydrodesulfurization Studies
- Clay minerals and soil interactions
- Coal Combustion and Slurry Processing
- Advanced Combustion Engine Technologies
- Biodiesel Production and Applications
- Heat transfer and supercritical fluids
- Coal and Its By-products
- Iron oxide chemistry and applications
- Phytochemicals and Medicinal Plants
- Polymer Synthesis and Characterization
- Metal Extraction and Bioleaching
- CO2 Reduction Techniques and Catalysts
- Minerals Flotation and Separation Techniques
- Carbon dioxide utilization in catalysis
Dicle University
2007-2021
Middle East Technical University
2010-2021
Ankara (Czechia)
2016
The hydrogenation of aromatics is a ubiquitous chemical transformation used in both the petrochemical and specialty industry important for generation clean diesel fuels. Reported herein discovery superior heterogeneous catalyst, terms catalytic activity, selectivity, lifetime solvent-free system under mild conditions (at 25 degrees C 42 +/- 1 psig initial H(2) pressure). Ruthenium(0) nanoclusters stabilized by nanozeolite framework as new material reproducibly prepared from borohydride...
Ruthenium(0) nanoparticles supported on ceria (Ru(0)/CeO2) were in situ generated from the reduction of ruthenium(iii) ions impregnated during hydrolysis ammonia borane. Ru(0)/CeO2 was isolated reaction solution by centrifugation and characterized ICP-OES, BET, XRD, TEM, SEM-EDS XPS techniques. All results reveal that ruthenium(0) successfully resulting is a highly active, reusable long-lived catalyst for hydrogen generation borane with turnover frequency value 361 min(-1). The reusability...
Cobalt(II,III) oxide nanopowders are used as supporting materials for rhodium(0) nanoparticles forming Rh0/Co3O4 nanocatalysts, which can be prepared by impregnation and sodium borohydride reduction of Rh3+ ions on the surface support. Magnetically separable isolated from reaction medium an external magnet characterized using various analytical techniques. highly active reusable catalysts with a long lifetime in hydrolytic dehydrogenation ammonia borane (AB) at room temperature. 0.5% wt Rh...
The preparation of ruthenium(0) nanoclusters supported on hydroxyapatite and their characterization by a combination complementary techniques are described. resultant provide high activity reusability in the complete hydrogenation aromatics under mild conditions (at 25 °C with 42 psi initial H2 pressure).
A major hurdle in commercialization of biodiesel from vegetable oil, comparison to petroleum-based diesel fuel, is its cost manufacturing, primarily the raw material cost. Waste cooking oil one economical sources for production. NaOH and KOH catalyzed processes prepared expressed fatty acid methyl ester were comparatively studied refined sunflower ( Helianthus annuus L) waste oil. Transesterification was carried out using 100% excess methanol; i.e. molar ratio methanol 6:1 catalyst...
Abstract The safflower (Carthamus tinctorius L.) oil was extracted from the seeds of that grows in Diyarbakir, SE Anatolia Turkey. Carthamus L. seed investigated as an alternative feedstock for production a biodiesel fuel. By traditional solvent extraction, obtained and prepared by transesterification crude oil. A maximum conversion 93% (oil to ester) achieved using 100% excess methanol, i.e., molar ratio methanol is 6:1 catalyst (NaOH) concentration 0.5% at 65°C. viscosity nearer petroleum...
Reducible WO3 powder with a mean diameter of 100 nm is used as support to stabilize ruthenium(0) nanoparticles. Ruthenium(0) nanoparticles are obtained by NaBH4 reduction ruthenium(III) precursor on the surface at room temperature. uniformly dispersed tungsten(VI) oxide. The Ru0 /WO3 found be active catalysts in hydrolytic dehydrogenation ammonia borane. turnover frequency (TOF) values nanocatalysts metal loading 1.0%, 2.0%, and 3.0% wt. Ru 122, 106, 83 min-1, respectively, releasing...
Abstract Desulfurization and demineralization by an aqueous caustic leaching method was investigated of asphaltite sample from Harbul (Silopi, SE Anatolia, Turkey). The effects different parameters, such as alkali concentration, time, temperature, on the efficiency were detailed experimental results are presented here. concentration varied 0.1–1.0 M, temperature 100–180°C, time 4–16 h. removal total sulfur ash increases with increasing time. As a result leaching, content reduced 32.49 to...
Thermal behavior of Harbul asphaltites (SE Anatolia, Turkey) has been studied using thermogravimetric analysis at atmospheric pressure and with nitrogen as the ambient gas.Asphaltite samples were ground separated according to their size by sieving.Particle distribution chemical composition asphaltite fractions are given.TG/DTG data demonstrated two stages mass loss.The first stage, called primary volatization, occurs in range 200-600 °C, second secondary gasification, 600-800 °C.Kinetic...