Saim Özkar

E-mail

sozkar@metu.edu.tr

Department

ORCID

0000-0002-6302-1429

Scopus Author ID

201001004677

Web of Science Researcher ID

ABA-1983-2020

Nickel ferrite platinum nanoparticles: Highly active catalyst in hydrolytic dehydrogenation of ammonia borane Akbayrak, Serdar; Özkar, Saim (2025-03-05) Magnetically separable platinum(0) nanoparticles are obtained by depositing them on the surface of magnetic nickel ferrite powder. The reduction of H2PtCl6 with sodium borohydride on the surface of nickel ferrite powder re...
Oxide coated nickel powder as support for platinum(0) nanoparticles: Magnetically separable catalysts for hydrogen generation from the hydrolysis of ammonia borane Akbayrak, Serdar; Çakmak, Gülhan; Öztürk, Tayfur; Özkar, Saim (2024-10-15) We report the development of a novel method for the preparation of magnetically separable platinum nanoparticles. Magnetic nickel nanopowder is initially synthesized in a radiofrequency plasma reactor where in-line passiva...
Giant, Submicron Size, Yet Nearly Uniform Ir0∼30,000,000 Particles: Synthesis, “Raspberry” Structure, and Resultant Insights into Their Mechanism of Formation Özkar, Saim; MacHale, Luke T.; Finke, Richard G. (2023-01-01) Synthetic conditions have been discovered that yield previously unknown massive, 0.230 ± 0.029 μm (i.e., submicron-sized), yet still near-uniform size, still near-monodisperse, ca. Ir0∼30,000,000 particles. These are the f...
Increasing the catalytic efficiency of rhodium(0) nanoparticles in hydrolytic dehydrogenation of ammonia borane Özkar, Saim (2023-01-01) It reviews the papers reporting on the use of rhodium nanocatalysts in hydrogen generation from the hydrolysis of ammonia borane in the following groups: (i) water soluble rhodium complexes, (ii) colloidal nanoparticles of...
Nanotitania supported ruthenium(0) nanoparticles as active catalyst for releasing hydrogen from dimethylamine borane Hammoodi Yousif Al-Areedhee, Ahmed; Karaboğa, Seda; Morkan, İzzet Amour; Özkar, Saim (2023-01-01) We reports the ex situ preparation of nanotitania supported ruthenium(0) nanoparticles (NPs) and their catalytic testing in dehydrogenation of dimethylamine borane (DMAB) in toluene solvent. Ru0/TiO2 NPs are prepared follo...
Palladium nanoparticles supported on cobalt(II,III) oxide nanocatalyst: High reusability and outstanding catalytic activity in hydrolytic dehydrogenation of ammonia borane Akbayrak, Serdar; Özkar, Saim (2022-11-01) A new palladium(0) nanocatalyst is developed to enhance the catalytic efficiency of precious metal catalysts in hydrogen generation from the hydrolytic dehydrogenation of ammonia borane. Magnetically separable Pd-0/Co3O4 n...
A Review Of The Catalytic Conversion Of Glycerol To Lactic Acid İn The Presence Of Aqueous Base Akbulut, Doğan; Özkar, Saim (2022-06-01) Lactic acid is a high-value-added chemical with large production, which is used in many industries including the production of pyruvic and acrylic acids. Lactic acid is largely obtained from the oxidation of glycerol, whic...
How to increase the catalytic efficacy of platinum-based nanocatalysts for hydrogen generation from the hydrolysis of ammonia borane Özkar, Saim (2022-01-01) It reports how to increase the overall catalytic performance of precious platinum nanocatalysts in hydrolytic dehydrogenation of ammonia borane which requires enhancement of both catalytic activity and reusability of the n...
Recent advances in heterogeneous catalysts for the effective electroreduction of carbon dioxide to carbon monoxide Eren, Enis Oğuzhan; Özkar, Saim (2021-09-15) The electrochemical conversion of carbon dioxide into low carbon fuels is a very convenient way of reducing the concentration of atmospheric CO2, which is the main cause of global warming. CO is known to be the most common...
Cobalt ferrite supported platinum nanoparticles: Superb catalytic activity and outstanding reusability in hydrogen generation from the hydrolysis of ammonia borane Akbayrak, Serdar; Özkar, Saim (2021-08-15) In this work, platinum(0) nanoparticles are deposited on the surface of magnetic cobalt ferrite forming magnetically separable Pt-0/CoFe2O4 nanoparticles, which are efficient catalysts in H-2 generation from the hydrolysis...

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