Meryem Sondan Durukanoğlu Feyiz

Scholarly Output Search Results

Now showing 1 - 3 of 3

The Role of Atomistic Processes in Growth of Cu-Ni Metallic/Bimetallic Nanoparticles
(Elsevier, 2023) Ilker, Efe; Konuk, Mine; Madran, Melihat; Gokcen, Mine; Goksal, Ilkin; Durukanoglu, Sondan
Controlling the morphology of non-noble bimetallic nanocrystals can provide an excellent opportunity to improve performance and activity in catalytic reactions. Although several studies have focused on the overall macroscopic description of the synthesis process, identifying the leading factors in a typical crystal growth process at the atomic scale is still challenging. Here we report the results of atomic scale calculations on the shape evolution of bimetallic Cu-Ni nanoparticle growth using molecular static and dynamic simulations. Our calculations show that statistical analysis of space and time characteristics of single atom diffusion mechanisms and their energy barriers provide sound guidance for fabricating end products with specific shapes and architecture in a growth process.
Citation - WoS: 1
Citation - Scopus: 1
Repetitive Rolling of Triptycene-Based Molecules on Cu Surfaces
(Amer Chemical Soc, 2024) Konuk, Mine; Madran, Melihat; Uysal, Mehmet Tuna; Beser, Deniz; Ozen, Alimet Sema; Akdeniz, Zehra; Durukanoglu, Sondan
The metal surface-supported rotation of artificial molecular structures is technologically important for developing molecular-level devices. The key factors leading to the practical applications of these molecular machines on metal surfaces are the atomic-scale control of the rotation and the counterbalance of the temperature-driven instability of the molecules. In this work, we present a means by which triptycene-based molecular wheels can roll repetitively on a metal surface. Our results show that regularly stepped surfaces are the perfect candidate not only for stabilizing the molecule on the metal surface but also for providing the pivot points needed for repetitive vertical rotation of the molecule at higher temperatures. In addition to the geometrical compatibility of the substrate and the molecule, intermittent application of the external electric field is needed for rolling the molecule on a metal-stepped surface in a controllable manner.
Citation - WoS: 6
Citation - Scopus: 6
Growth and Shape Stability of Cu-Ni Core-Shell Nanoparticles: an Atomistic Perspective
(Royal Soc Chemistry, 2018) İlker, Efe; Madran, Melihat; Konuk, Mine; Durukanoğlu, Sondan
The growth and shape stability of bi-metallic cubic Cu-Ni nanoparticles are studied using atomic-level simulations. Cubic nano-crystals coated with an ultra-thin Cu layer can be readily obtained when Ni cubic nanoparticles are used as the seeds. At elevated temperatures the Cu seed with extending Ni branches preserves its shape compared to the Ni seed with extending Cu branches.

Journal	Count
Chemical Communications	1
Computational Materials Science	1
Journal of the American Chemical Society	1

Durukanoğlu Feyiz, Meryem Sondan

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23

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388

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11

Documents

24

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453

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3

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3

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25/0

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0

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0

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7

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7

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1

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1

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0

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0

WoS Citations per Publication

2.33

Scopus Citations per Publication

2.33

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1

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0

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