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Browsing Metalurji ve Malzeme Mühendisliği / Metallurgy and Materials Engineering by Subject

Browsing Metalurji ve Malzeme Mühendisliği / Metallurgy and Materials Engineering by Subject "Energy & Fuels"

Now showing items 1-9 of 9

Graphene supported alpha-MnO2 nanocomposite cathodes for lithium ion batteries

Çetinkaya, Tuğrul; Tokur, Mahmud; Seyma Ozcan; Uysal, Mehmet; Akbulut, Hatem (PERGAMON-ELSEVIER SCIENCE LTD, 2016)

In this study, Graphene/alpha-MnO2 nanocomposite cathodes were produced using ultra-sonication and mechanical alloying facilities. Before production of Graphene/alpha-MnO2 composites, Graphene structure was fabricated by ...
High capacity Graphene/alpha-MnO2 nanocomposite cathodes for Li-O-2 batteries

Çetinkaya, Tuğrul; Akbulut, Hatem; Tokur, Mahmud; Seyma Ozcan; Uysal, Mehmet (PERGAMON-ELSEVIER SCIENCE LTD, 2016)

Graphene/alpha-MnO2 nanocomposite cathodes containing various amount of alpha-MnO2 catalysts (10 wt.%, 30 wt.%, 50 wt.%) were produced using planetary ball milling. The charge-discharge characteristics of the Li-O-2 cells ...
High stable Li-air battery cells by using PEO and PVDF additives in the TEGDME/LiPF6 electrolytes

Akbulut Uludağ, Ahsen; Tokur, Mahmud; Algül, Hasan; Çetinkaya, Tuğrul; Uysal, Mehmet; Akbulut, Hatem (PERGAMON-ELSEVIER SCIENCE LTD, 2016)

An ether based electrolyte containing TEGDME/LiPF6 was optimized, which possessed low viscosity and high ionic conductivity, under dry argon atmosphere in a glove box. In order to prevent air breathing cathode clogging by ...
Production and characterization of free-standing ZnO/SnO2/MWCNT ternary nanocomposite Li-ion battery anode

Köse, Hilal; Dombaycıoğlu, Şeyma; Aydın, Ali Osman; Akbulut, Hatem (PERGAMON-ELSEVIER SCIENCE LTD, 2016)

High capacity ZnO/SnO2/MWCNT ternary nanocomposite films were prepared as free-standing anode materials by sol-gel spin coating method to increase the electrochemical discharge capacity of the Li-ion battery electrodes. ...
Solution blown polymer/biowaste derived carbon particles nanofibers: An optimization study and energy storage applications

Elena Stojanovska; Nur Dilara Ozturk; Yusuf Polat; Akbulut, Hatem; Ali Kilic (ELSEVIER, 2019)

The perspective of the abundant bio-materials and the possibility to be reused attracts attention, especially when producing carbon materials for energy storage applications. In that regard, an original electrode architecture ...
Synthesis of flexible pure graphene papers and utilization as free standing cathodes for lithium-air batteries

Seyma Ozcan; Çetinkaya, Tuğrul; Tokur, Mahmud; Algül, Hasan; Güler, Mehmet Oğuz; Akbulut, Hatem (PERGAMON-ELSEVIER SCIENCE LTD, 2016)

In Lithium-air cathode, graphene containing materials have been reported as ideal cathode materials due to their large theoretical specific surface area, chemical stability, high electrical conductivity and charge capacity. ...
The effect of LiBF4 salt concentration in EC-DMC based electrolyte on the stability of nanostructured LiMn2O4 cathode

Dombaycıoğlu, Şeyma; Köse, Hilal; Aydın, Ali Osman; Akbulut, Hatem (PERGAMON-ELSEVIER SCIENCE LTD, 2016)

Electrolytes which have different LiBF4 salt concentrations (0.8 m, 1.0 m, 1.2 m and 1.4 m) in the ratio of 2:1 (w/w) Ethylene Carbonate (EC): Dimethyl Carbonate (DMC) solvents were prepared. Obtained electrolytes were ...
Three-dimensional Sn rich Cu6Sn5 negative electrodes for Li ion batteries

Algül, Hasan; Uysal, Mehmet; Tokur, Mahmud; Ozcan, S;; Çetinkaya, Tuğrul; Akbulut, Hatem; Alp, Ahmet (PERGAMON-ELSEVIER SCIENCE LTD, 2016)

Three-dimensional Sn rich Cu6Sn5 electrodes were fabricated by the pulse electrodeposition process on a porous nickel foam substrate to improve discharge capacity and cycle ability of the Sn-Cu alloy negative electrodes ...
Tris(pentafluorophenyl) borane as an electrolyte additive for Li-O-2 batteries

Kartal, Muhammet; Uysal, Mehmet; Alp, Ahmet; Akbulut, Hatem (PERGAMON-ELSEVIER SCIENCE LTD, 2016)

TPFPB was used as an additive in a rechargeable Li-O-2. cell utilizing an electrolyte composed of a solution 1 M LiPF6 in tetraethylene glycol dimethyl ether (TEGDME) to investigate the effects on capacity and cycling ...