Induction thermal plasma synthesis of Mg2Ni nanoparticles

2014-06-15
Aktekin, Burak
ÇAKMAK, GÜLHAN
Öztürk, Tayfur
A study was carried out into possibility of thermal plasma synthesis of Mg2Ni nanoparticles. Both prealloyed powders and elemental powders were used as precursors in an inductively coupled thermal plasma incorporating two injection probes located axially in the reactor one from the top and the other from the bottom. The study has shown that the use of prealloyed Mg2Ni as precursor leads to its disintegration in the plasma condensing into separate phases and therefore was not suitable for the synthesis of Mg2Ni. The study further showed that Mg2Ni can be synthesized quite successfully with the use of elemental powders provided that elements are maintained into the plasma at carefully controlled positions. While the fraction of Mg2Ni was quite substantial, it co-existed with other phases and therefore additional treatments would be necessary for separation. It was shown that a substantial size reduction was possible with thermal plasma where Mg2Ni could be produced in sizes around 100 nm. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

Suggestions

Development of Hydrogen Separation Membrane in Palladium Based Ternary Systems
Köse, Mehmet Mert; Öztürk, Tayfur; Department of Metallurgical and Materials Engineering (2022-1-25)
A study was carried out into dense metallic membranes for hydrogen separation. Two palladium-based system were characterized Pd-Mn-Ag and Pd-Co-Ni. Membranes were produced via sputter deposition in combinatorial geometry. For this purpose, sputter targets were arranged in triangular manner, and there were total of 21 substrates just above the targets. Membranes were screened via resistivity measurements under argon and hydrogen carried out up to 450 oC. A reactivity index defined as resistivity under hydrog...
Experimental investigation of the failure of air plasma sprayed thermal barrier coatings
Kütükoğlu, Başar; Çöker, Demirkan; Department of Aerospace Engineering (2015)
In this thesis, an experimental method is developed to determine the interfacial fracture toughness of air plasma sprayed thermal barrier coatings. The thesis is composed of three major parts. In the first part, nanoindentation is used to measure the elastic modulus and hardness of the APS TBC specimens composed of three major layers: Inconel 718 substrate, NiCrAlY based metallic bond coat (BC) and YSZ based ceramic top coat (TC). Microscopy, XRD and EDS are used for metallurgical characterization. In the s...
Biosensors Based on Nano-Gold/Zeolite-Modified Ion Selective Field-Effect Transistors for Creatinine Detection
Kasap, Berna Ozansoy; Marchenko, Svitlana V.; Soldatkin, Oleksandr O.; Dzyadevych, Sergei V.; Akata Kurç, Burcu (2017-03-02)
The combination of advantages of using zeolites and gold nanoparticles were aimed to be used for the first time to improve the characteristic properties of ion selective field-effect transistor (ISFET)-based creatinine biosensors. The biosensors with covalently cross-linked creatinine deiminase using glutaraldehyde (GA) were used as a control group, and the effect of different types of zeolites on biosensor responses was investigated in detail by using silicalite, zeolite beta (BEA), nano-sized zeolite beta...
Effective mass and peculiarity of optical properties of Cadmium Sulfide nanoparticles
Muradov, M. B.; Eyvazova, G. M.; Turan, Raşit; Maharramov, A. M. (2008-12-01)
X-ray diffraction data, electron microscope and optical properties of cadmium sulfide nanoparticles were analyzed. It is shown that the value of the reduced effective mass of charge carriers in nanoparticles differs from bulk crystals. Changes of effective mass and "red shift" in values of band gap are explained by the occurrence of additional electronic potential in nanoparticles.
Photovoltaic performance of bifacial dye sensitized solar cell using chemically healed binary ionic liquid electrolyte solidified with SiO2 nanoparticles
Cosar, Burak; Icli, Kerem Cagatay; Yavuz, Halil Ibrahim; Özenbaş, Ahmet Macit (2013-01-01)
In this study, we investigated the effect of electrolyte composition, photoanode thickness, and the additions of GuSCN (guanidinium thiocyanate), NMB (N-methylbenimidazole), and SiO2 on the photovoltaic performance of DSSCs (dye sensitized solar cells). A bifacial DSSC is realized and irradiated from front and rear sides. The devices give maximum photovoltaic efficiencies for 70% PMII (1-propyl-3-methyl-imidazolium iodide)/30% (EMIB(CN)(4)) (1-ethyl-3-methyl-imidazolium tetracyanoborate) electrolyte composi...
Citation Formats
B. Aktekin, G. ÇAKMAK, and T. Öztürk, “Induction thermal plasma synthesis of Mg2Ni nanoparticles,” INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, pp. 9859–9864, 2014, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/30460.