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Browsing by Subject "electrochemical"

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Development of novel sulfur/carbon cathode composites using spray pyrolysis and study of their electrochemical performance in lithium-sulfur batteries

Umirov, N.; Yesibolati, N.; Batyrbekuly, D.; Mentbayeva, A.; Sugurbekov, E.; Konarov, A.; Kurmanbayeva, I.; Hara, Toru; Bakenov, Zhumabay (Nazarbayev University, 2014)

The eminent global energy crisis and growing ecological concerns in the past two decades have led to intensive development in the fields of green transportation such as electric and hybrid electric vehicles (HEV), as ...
Improvement of environmental safety and economic efficiency of gold extraction industry

Sugurbekova, G.; Akhmetov, N. (Nazarbayev University, 2014)

This project was devoted to reach two aims: (i) to optimize the gold leaching process based on ammonia thiosulfate and catalyzed by copper as a novel leaching agent, and (ii) to develop the cyanide recycling technology. ...
Synthesis and characterizations of NaFePO4/Na2FePO4Fcathode materials for Na-ION based AQUEOUS battery

Koishybay, A.; Omarova, M.; Yesibolati, N.; Kurmanbayeva, I.; Bakenov, Zhumabay (Nazarbayev University, 2014)

Rechargeable Li-ion batteries have dominated the market for twenty years. However, the increasing demand for energy storage creates new challenges for further use of lithium-ion batteries mainly due to the problems ...
Triphenylamine dyes having symmetric double D-TI-A configuration for dye-sensitized solar cells

Balanay, M. P.; Lee, S. H.; Kim, D. H. (Nazarbayev University, 2014)

The conformation of the dye on the semiconductor is an important factor for the improvement of charge injection and minimization of the back electron transfer process. In addition, the dye should be able to suppress ...