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Chemistry
Turkey
2026

D-Index & Metrics

Chemistry

D-Index
79
Citations
17310
World Ranking
3708
National Ranking
10

Research.com Recognitions

  • 2026 - Research.com Chemistry in Turkey Leader Award
  • 2025 - Research.com Chemistry in Turkey Leader Award
  • 2022 - Research.com Chemistry in Turkey Leader Award
  • The Science Academy Society of Turkey - Bilim Akademisi Chemistry
  • The Science Academy Society of Turkey - Bilim Akademisi Chemistry
  • The Science Academy Society of Turkey - Bilim Akademisi Chemistry
  • The Science Academy Society of Turkey - Bilim Akademisi Chemistry
  • The Science Academy Society of Turkey - Bilim Akademisi Chemistry

Overview

Saim Özkar is affiliated with Middle East Technical University in Turkey and has contributed extensively to the fields of Materials Science, Chemical Engineering, and Energy. Their research spans several specific subfields including Materials Chemistry, Catalysis, Energy Engineering and Power Technology, Renewable Energy, Sustainability and the Environment, and Atmospheric Science.

The research topics covered by Özkar include:

  • Hydrogen Storage and Materials
  • Ammonia Synthesis and Nitrogen Reduction
  • Hybrid Renewable Energy Systems
  • Nanoparticles nucleation surface interactions
  • Boron and Carbon Nanomaterials Research
  • Coagulation and Flocculation Studies
  • Advanced battery technologies research

Among recent publications authored or co-authored by Özkar are:

  • "LaMer's 1950 model of particle formation: a review and critical analysis of its classical nucleation and fluctuation theory basis, of competing models and mechanisms for phase-changes and particle formation, and then of its application to silver halide, semiconductor, metal, and metal-oxide nanoparticles" (2020), published in Materials Advances
  • "Cobalt ferrite supported platinum nanoparticles: Superb catalytic activity and outstanding reusability in hydrogen generation from the hydrolysis of ammonia borane" (2021), Journal of Colloid and Interface Science
  • "Magnetically Separable Rh0/Co3O4 Nanocatalyst Provides over a Million Turnovers in Hydrogen Release from Ammonia Borane" (2020), ACS Sustainable Chemistry & Engineering
  • "Magnetically Isolable Pt0/Co3O4 Nanocatalysts: Outstanding Catalytic Activity and High Reusability in Hydrolytic Dehydrogenation of Ammonia Borane" (2021), ACS Applied Materials & Interfaces
  • "A review on platinum(0) nanocatalysts for hydrogen generation from the hydrolysis of ammonia borane" (2021), Dalton Transactions

Özkar has published predominantly in several key academic journals, including:

  • International Journal of Hydrogen Energy
  • SSRN Electronic Journal
  • Journal of Colloid and Interface Science
  • The Journal of Physical Chemistry C
  • Journal of Alloys and Compounds

Frequent collaborators include:

  • Serdar Akbayrak
  • Richard G. Finke
  • Yalçın Tonbul
  • Gülhan Çakmak
  • Tayfur Öztürk

The scientist has been recognized by The Science Academy Society of Turkey - Bilim Akademisi for contributions in chemistry.

Best Publications

  • Monodisperse nickel nanoparticles and their catalysis in hydrolytic dehydrogenation of ammonia borane.

    Oender Metin;Vismadeb Mazumder;Saim Ozkar;Shouheng Sun

  • Nanocluster Formation and Stabilization Fundamental Studies: Ranking Commonly Employed Anionic Stabilizers via the Development, Then Application, of Five Comparative Criteria

    Saim Ozkar;Richard G Finke

  • Metal nanoparticles in liquid phase catalysis; from recent advances to future goals

    Mehmet Zahmakıran;Saim Özkar

  • Hydrogen generation from hydrolysis of sodium borohydride using Ru(0) nanoclusters as catalyst

    Saim Ozkar;M Zahmakiran

  • Water-soluble poly(4-styrenesulfonic acid-co-maleic acid) stabilized ruthenium(0) and palladium(0) nanoclusters as highly active catalysts in hydrogen generation from the hydrolysis of ammonia–borane

    Önder Metin;Şule Şahin;Saim Özkar

  • Ammonia borane as hydrogen storage materials

    Serdar Akbayrak;Saim Özkar

  • Ceria supported rhodium nanoparticles: Superb catalytic activity in hydrogen generation from the hydrolysis of ammonia borane

    Serdar Akbayrak;Yalçın Tonbul;Yalçın Tonbul;Saim Özkar

  • Hydrogen Generation from the Hydrolysis of Ammonia-borane and Sodium Borohydride Using Water-soluble Polymer-stabilized Cobalt(0) Nanoclusters Catalyst

    Önder Metin;Saim Özkar

  • LaMer’s 1950 Model for Particle Formation ofInstantaneous Nucleation and Diffusion-Controlled Growth: A HistoricalLook at the Model’s Origins, Assumptions, Equations, and UnderlyingSulfur Sol Formation Kinetics Data

    Christopher B. Whitehead;Saim Özkar;Richard G. Finke

  • Ruthenium(0) nanoparticles supported on multiwalled carbon nanotube as highly active catalyst for hydrogen generation from ammonia-borane.

    Serdar Akbayrak;Saim Özkar

  • Is it homogeneous or heterogeneous catalysis derived from [RhCp*Cl2]2? In operando XAFS, kinetic, and crucial kinetic poisoning evidence for subnanometer Rh4 cluster-based benzene hydrogenation catalysis.

    Ercan Bayram;John C. Linehan;John L. Fulton;John A. S. Roberts

  • Ruthenium(0) nanoclusters stabilized by a Nanozeolite framework: isolable, reusable, and green catalyst for the hydrogenation of neat aromatics under mild conditions with the unprecedented catalytic activity and lifetime.

    Mehmet Zahmakıran;Yalçın Tonbul;Saim Özkar

  • Water soluble laurate-stabilized ruthenium(0) nanoclusters catalyst for hydrogen generation from the hydrolysis of ammonia-borane: High activity and long lifetime

    Feyyaz Durap;Mehmet Zahmakıran;Saim Özkar

  • Palladium(0) nanoparticles supported on polydopamine coated CoFe2O4 as highly active, magnetically isolable and reusable catalyst for hydrogen generation from the hydrolysis of ammonia borane

    Joydev Manna;Serdar Akbayrak;Saim Özkar

  • Analysis of Nanoparticle Transmission Electron Microscopy Data Using a Public- Domain Image-Processing Program, Image

    Gerd H. Woehrle;James E. Hutchison;Saim Özkar;Richard G. Finke

  • Zeolite framework stabilized rhodium(0) nanoclusters catalyst for the hydrolysis of ammonia-borane in air: Outstanding catalytic activity, reusability and lifetime

    Mehmet Zahmakıran;Saim Özkar

  • Zeolite-confined ruthenium(0) nanoclusters catalyst: record catalytic activity, reusability, and lifetime in hydrogen generation from the hydrolysis of sodium borohydride.

    Mehmet Zahmakiran;Saim Özkar

  • Facile Synthesis of Three-Dimensional Pt-TiO2 Nano-networks: A Highly Active Catalyst for the Hydrolytic Dehydrogenation of Ammonia–Borane

    Mohammad Aref Khalily;Hamit Eren;Serdar Akbayrak;Hepi Hari Susapto

  • Hydroxyapatite-supported cobalt(0) nanoclusters as efficient and cost-effective catalyst for hydrogen generation from the hydrolysis of both sodium borohydride and ammonia-borane

    Murat Rakap;Saim Özkar

  • Water soluble nickel(0) and cobalt(0) nanoclusters stabilized by poly(4-styrenesulfonic acid-co-maleic acid): Highly active, durable and cost effective catalysts in hydrogen generation from the hydrolysis of ammonia borane

    Önder Metin;Saim Özkar

Frequent Co-Authors

Mehmet Zahmakiran
Mehmet Zahmakiran Bartin University
Richard G. Finke
Richard G. Finke Colorado State University
Önder Metin
Önder Metin Koç University
Geoffrey A. Ozin
Geoffrey A. Ozin University of Toronto
Inci Eroglu
Inci Eroglu Middle East Technical University
Mojtaba Bagherzadeh
Mojtaba Bagherzadeh Sharif University of Technology
Bruno Chaudret
Bruno Chaudret Paul Sabatier University
Karine Philippot
Karine Philippot Federal University of Toulouse Midi-Pyrénées
Judith C. Yang
Judith C. Yang Brookhaven National Laboratory
Anatoly I. Frenkel
Anatoly I. Frenkel Stony Brook University

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