Necip Berker Üner

E-mail

nuner@metu.edu.tr

Department

Department of Chemical Engineering

Analysis of a High-Pressure Reciprocating Compressor Piston's 2D Simulation Utilizing Computational Fluid Dynamics Turgut, Furkan; Şimşek, Ahmet Berkay; Üner, Necip Berker; Erdogan, Bariş (2024-01-01) Reciprocating compressors represent the most renowned and extensively utilized compressors within the positive displacement category. A compressor that takes input gas at pressures above atmospheric and delivers it very hi...
Charge decay in the spatial afterglow of plasmas and its impact on diffusion regimes Abuyazid, Nabiel H.; Üner, Necip Berker; Peyres, Sean M.; Mohan Sankaran, R. (2023-12-01) The spatial afterglow is a region at the boundary of a non-equilibrium plasma where charged species relax into ambient equilibrium. In many applications, the spatial afterglow is the part of the plasma that interacts with ...
Rate, Efficiency, and Mechanisms of Electrochemical Perfluorooctanoic Acid Degradation with Boron-Doped Diamond and Plasma Electrodes Üner, Necip Berker; Baldaguez Medina, Paola; Dinari, Jasmine L.; Su, Xiao; Sankaran, R Mohan (2022-07-26) The removal of per- or polyfluorinated alkyl substances (PFAS) has received increasing attention because of their extreme stability, our increasing awareness of their toxicity at even low levels, and scientific challenges ...
Multiphase modeling of the DC plasma-water interface: application to hydrogen peroxide generation with experimental validation Keniley, Shane; Üner, Necip Berker; Perez, Elizabeth; Sankaran, R. Mohan; Curreli, Davide (2022-07-01) Here, we present a one-dimensional, time-dependent multi-physics model of a plasma-liquid interface that encompasses both the plasma and liquid phases using the MOOSE-based drift-diffusion-reaction software, Zapdos-Crane. ...
Superlocal chemical reaction equilibrium in low temperature plasma Üner, Necip Berker; Thimsen, Elijah (2020-06-01) Low temperature plasmas (LTP) are a unique class of open-driven systems in which chemical reactions are unpredictable using established concepts. The terminal state of chemical reactions in LTP, termed the superlocal equil...
Phase mixing in GaSb nanocrystals synthesized by nonequilibrium plasma aerotaxy Üner, Necip Berker; Thimsen, Elijah (2020-05-01) III-V semiconductor nanocrystals are an important class of optoelectronic materials. However, the gas-phase synthesis of these materials, especially of the stibnides, has been left relatively unexplored. In this study, we ...
Nonequilibrium plasma aerotaxy of size controlled GaN nanocrystals Üner, Necip Berker; Thimsen, Elijah (2020-02-01) High quality gallium nitride (GaN) nanocrystals (NCs) are promising materials in a wide range of applications including optoelectronics, photonics and biomedical devices. Unlike II-VI semiconductors, the synthesis of free-...
Nonequilibrium Plasma Aerotaxy of InN Nanocrystals and Their Photonic Properties Üner, Necip Berker; Niedzwiedzki, Dariusz M.; Thimsen, Elijah (2019-12-01) A recently introduced gas-phase method for the synthesis of III-V semiconductor nanocrystals (NCs), termed nonequilibrium plasma aerotaxy, is extended to the synthesis of indium nitride. The InN NCs were made to be free-st...
Accessing unconventional biofuels via reactions far from local equilibrium Gao, Yu; Üner, Necip Berker; Thimsen, Elijah; Foston, Marcus B. (2018-08-01) The thermochemical production of fuels from lignocellulosic biomass is constrained by equilibrium thermodynamics. However, low temperature plasma reactions are not governed by local equilibrium and involve the formation of...
Low temperature plasma as a means to transform nanoparticle atomic structure Üner, Necip Berker; Thimsen, E. (2018-07-01) Low temperature plasma (LTP) is a highly nonequilibrium substance capable of increasing the specific free energy of mass that flows through it. Despite this attractive feature, there are few examples of the transformation ...

Citation Formats