Temat: 82.45.Gj - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Evaluation of Li-Air Batteries With EC-DEC Based Nanocomposite Electrolytes
Autorzy:: Akbulut, A.
Guler, M.
Cetinkaya, T.
Uysal, M.
Akbulut, H.
Powiązania:: https://bibliotekanauki.pl/articles/1401250.pdf
Data publikacji:: 2015-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 82.45.Gj
88.80.ff
82.45.Xy
Opis:: Electrolytes based on organic carbonate solvents of ethylene carbonate (EC) and diethyl carbonate (DEC) were prepared by using LiPF₆ as the Li-source. Nano sized Al₂O₃ (50 nm) was used as a reinforcing component in order to control corrosion and Li₂CO₃ formation. Corrosion of the Li foil anode and electrochemical tests were performed by using EC/DEC/LiPF₆ and nanocomposite EC/DEC/LiPF₆/5wt.% Al₂O₃ electrolytes. Electrochemical tests were performed in the swagelok cells by using Li foil anode and carbon air cathode electrodes. Structural tests were carried out by using scanning electron microscopy (SEM), x-ray diffraction (XRD) and Raman spectroscopy. Results revealed that incorporation of nano Al₂O₃ leads to a decrease of corrosion rate of Li anode and a small decrease in the capacity of the air cells.
Źródło:: Acta Physica Polonica A; 2015, 127, 4; 1023-1025
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Electrical Conductivity, Viscosity and Thermal Properties of TEGDME-Based Composite Electrolytes for Lithium-Air Batteries
Autorzy:: Kartal, M.
Alp, A.
Akbulut, H.
Powiązania:: https://bibliotekanauki.pl/articles/1398791.pdf
Data publikacji:: 2016-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 88.80.F-
88.80.ff
82.45.Gj
82.45.Wx
81.07.-b
Opis:: Some important properties of the electrolytes used in Li-air batteries were investigated. Electrolyte composed of a solution of 1 M LiPF₆ in tetra ethylene glycol dimethyl ether (TEGDME) was reinforced with SiO₂, Al₂O₃, poly(ethylene) oxide (PEO) and tris (pentafluorophenyl) borane (TPFPB) additives. The effects of these reinforcements on conductivity, viscosity and thermal stability were investigated. Electrical conductivity tests were carried out using a multiparameter meter. Viscosity tests were performed in a viscometer using tuning-fork vibration method. Thermal stability of the electrolytes was tested by both TG and DSC.
Źródło:: Acta Physica Polonica A; 2016, 129, 4; 816-818
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: The Effect of Inorganic Nano Powder Additives in TEGDME for Lithium Air Batteries
Autorzy:: Kartal, M.
Uysal, M.
Cetinkaya, T.
Alp, A.
Akbulut, H.
Powiązania:: https://bibliotekanauki.pl/articles/1401233.pdf
Data publikacji:: 2015-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 88.80.F-
88.80.ff
82.45.Gj
82.45.Wx
81.07.-b
Opis:: SiO₂ and Al₂O₃ nano fillers were added to an electrolyte composed of a solution 1 M LiPF₆ in tetra ethylene glycol dimethyl ether (TEGDME) and the effects of these nano powders on capacity and cycling performances were investigated. Galvanostatic charge/discharge (GC) measurements were performed in the assembled Li-air cells by using the nanocomposite electrolytes. The discharge capacities of these cells were cyclically tested by a battery tester at a constant current in the voltage range between 2.15 V and 4.25 V. Discharge products of nanocomposite electrolytes were characterized by SEM and XRD spectroscopies. The electrochemical results demonstrated that Al₂O₃ reinforced electrolyte showed higher discharge capacity and cyclability than those of SiO₂ reinforced electrolyte.
Źródło:: Acta Physica Polonica A; 2015, 127, 4; 1016-1018
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Electrical Properties of Co-Doped Ceria Electrolyte $Ce_{0.8-x}Gd_{0.2}Sr_{x}O_{2-δ}$ (0.0 ≤ x ≤ 0.1)
Autorzy:: Ramesh, S.
Vishnuvardhan Reddy, C.
Powiązania:: https://bibliotekanauki.pl/articles/1808028.pdf
Data publikacji:: 2009-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 65.40.De
66.10.Ed
81.20.Fw
82.45.Gj
82.47.Ed
82.45.Xy
Opis:: Effects of strontium doping on electrical properties of gadolinium-doped ceria were investigated. The $Ce_{0.8-x}Gd_{0.2}Sr_{x}O_{2-δ}$ (0.0 ≤ x ≤ 0.1) compositions were prepared by sol-gel method and sintered at 1300°C for 8 h, the bulk densities were over 93% of theoretical density. These results were consistent with scanning electron microscope. The crystallite size of these materials was determined using the X-ray powder diffractometer and the sizes range from 19.4 nm to 24.4 nm. From the experimental results, it was observed that the composition $Ce_{0.8-x}Gd_{0.2}Sr_{x}O_{2-δ}$ (x=0.02) exhibits higher conductivity (23.6× $10^{-3}$ S $cm^{-1}$) and minimum activation energy (0.83 eV) at 700°C. This composition is thus a potential candidate for use as electrolyte applications in intermediate temperature solid oxide fuel cells.
Źródło:: Acta Physica Polonica A; 2009, 115, 5; 909-913
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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