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Dive into the research topics where U. Tocoglu is active.

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Featured researches published by U. Tocoglu.


Fullerenes Nanotubes and Carbon Nanostructures | 2016

Sn/SnO2/Mwcnt composite anode and electrochemical impedance spectroscopy studies for Li-ion batteries

Mirac Alaf; U. Tocoglu; Fuat Kayış; Hatem Akbulut

ABSTRACT Tin/tinoxide/multi-walled carbon nanotube (Sn/SnO2/MWCNT) core-shell structure nanocomposite anode is produced by thermal evaporation and subsequent plasma oxidation with using MWCNT buckypaper. Metallic tin is evaporated onto free-standing and flexible MWCNT buckypaper having controlled porosity and subsequent RF plasma oxidized in Ar:O2(1:1) gas mixture. X-ray diffraction and scanning electron microscopy are used to determine the structure and morphology of the obtained nanocomposite. The electrochemical characteristics of the nanocomposite anode are examined by using electrochemical impedance spectroscopy and galvanostatic charge–discharge experiments. Family of Nyquist plots during first discharge process are obtained and studied at different voltage values.


Akademik Platform Mühendislik ve Fen Bilimleri Dergisi | 2018

Li-O2 Piller için α-MnO2/Grafen/KNT Nanokompozit Elektrotlarının Üretimi ve Karakterizasyonu

M. Alaf; U. Tocoglu; Hatem Akbulut

Bu calismada Li-O 2 pilleri icin elektrot malzemesi α - MnO 2 /Grafen/KNT nanokompozitleri uretilmis ve karakterize edilmistir. Grafen Hummer metodu ile uretilmis ve tabakalar arasi bosluk yapici olarak karbon nano tup ilavesi yapilmistir. α - MnO 2 nano cubuklar sentezlenerek α - MnO 2 /Grafen/KNT nanokompozitleri vakum filtrasyon yontemi ile kagit halinde elektrot olarak uretilmistir. Uc farkli oranda ilave edilen α - MnO 2 nano cubuklari ile elektrotlarin yapisal karakterizasyonu FESEM, XRD kullanilarak ve elektrokimyasal karakterizasyonu da ECC-hava test hucreleri ile yapilmistir.


International Journal of Energy Research | 2014

Nanocomposite anodes for lithium-ion batteries based on Sno2 on multiwalled carbon nanotubes

Mehmet Oguz Guler; O. Cevher; Tugrul Cetinkaya; U. Tocoglu; Hatem Akbulut


Microelectronic Engineering | 2014

Electrochemical performance of MWCNT reinforced ZnO anodes for Li-ion batteries

Mehmet Oguz Guler; Tugrul Cetinkaya; U. Tocoglu; Hatem Akbulut


Microelectronic Engineering | 2014

A parametric study on the rapid synthesis of one dimensional (1D) α-MnO2 nanowires

Tugrul Cetinkaya; U. Tocoglu; Mehmet Uysal; Mehmet Oguz Guler; Hatem Akbulut


Applied Surface Science | 2016

Graphene supported heterogeneous catalysts for Li–O2 batteries

M. Alaf; U. Tocoglu; M. Kartal; Hatem Akbulut


International Journal of Hydrogen Energy | 2014

Core–shell tin-multi walled carbon nanotube composite anodes for lithium ion batteries

U. Tocoglu; O. Cevher; M. Oguz Guler; Hatem Akbulut


Applied Surface Science | 2014

Coaxial silicon/multi-walled carbon nanotube nanocomposite anodes for long cycle life lithium-ion batteries

U. Tocoglu; O. Cevher; M. Oguz Guler; Hatem Akbulut


International Journal of Energy Research | 2014

Electrochemical performance of SnO2:Sb–MWCNT nanocomposites for Li‐ion batteries

O. Cevher; Mehmet Oguz Guler; U. Tocoglu; Hatem Akbulut


International Journal of Hydrogen Energy | 2014

Amorphous ATO and amorphous ATO based composite anodes for Li-ion batteries

O. Cevher; U. Tocoglu; Hatem Akbulut

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