Facile Synthesis of Binder-Free Three-Dimensional CuxS Nanoflowers for Lithium Batteries
Copper sulfides (CuxS) with different stoichiometry are considered as prospective cathode materials for lithium batteries owing to their large energy storage capability. In this work, three-dimensional CuxS cathodes were synthesized via introducing commercially available copper foam into the solutio...
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doaj-619c2dcb24034798b944b78f3dad96002020-11-25T03:59:49ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2020-07-01810.3389/fenrg.2020.00154551706Facile Synthesis of Binder-Free Three-Dimensional CuxS Nanoflowers for Lithium BatteriesAssyl Adylkhanova0Arailym Nurpeissova1Desmond Adair2Zhumabay Bakenov3Izumi Taniguchi4Gulnur Kalimuldina5Department of Chemistry, L. N. Gumilyov Eurasian National University, Nur-Sultan, KazakhstanNational Laboratory Astana, Institute of Batteries, Nazarbayev University, Nur-Sultan, KazakhstanNational Laboratory Astana, Institute of Batteries, Nazarbayev University, Nur-Sultan, KazakhstanNational Laboratory Astana, Institute of Batteries, Nazarbayev University, Nur-Sultan, KazakhstanDepartment of Chemical Science and Engineering, Tokyo Institute of Technology, Tokyo, JapanNational Laboratory Astana, Institute of Batteries, Nazarbayev University, Nur-Sultan, KazakhstanCopper sulfides (CuxS) with different stoichiometry are considered as prospective cathode materials for lithium batteries owing to their large energy storage capability. In this work, three-dimensional CuxS cathodes were synthesized via introducing commercially available copper foam into the solution of dimethyl sulfoxide (DMSO) and sulfur powder. The synthesis procedures were straightforward and ultrafast and did not require additional reagents, high temperature, or long processing time and can be considered as a facile one-step method. Copper sulfide materials with different stoichiometry (x = 1.8, 1.96) were obtained by changing the temperature and the residence time of the copper foam in the DMSO solution. The effects of the temperature and time on phase and morphology of CuxS were characterized by X-ray diffraction and scanning electron microscopy coupled with energy dispersive X-ray spectroscopy. Electrochemical tests resulted in a stable cyclability of Cu1.8S cathode with 100% Coulombic efficiency and capacity of approximately 250 mAh g–1.https://www.frontiersin.org/article/10.3389/fenrg.2020.00154/fulllithium-ion batteriescopper foamsulfurone-step methodcopper sulfide |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Assyl Adylkhanova Arailym Nurpeissova Desmond Adair Zhumabay Bakenov Izumi Taniguchi Gulnur Kalimuldina |
spellingShingle |
Assyl Adylkhanova Arailym Nurpeissova Desmond Adair Zhumabay Bakenov Izumi Taniguchi Gulnur Kalimuldina Facile Synthesis of Binder-Free Three-Dimensional CuxS Nanoflowers for Lithium Batteries Frontiers in Energy Research lithium-ion batteries copper foam sulfur one-step method copper sulfide |
author_facet |
Assyl Adylkhanova Arailym Nurpeissova Desmond Adair Zhumabay Bakenov Izumi Taniguchi Gulnur Kalimuldina |
author_sort |
Assyl Adylkhanova |
title |
Facile Synthesis of Binder-Free Three-Dimensional CuxS Nanoflowers for Lithium Batteries |
title_short |
Facile Synthesis of Binder-Free Three-Dimensional CuxS Nanoflowers for Lithium Batteries |
title_full |
Facile Synthesis of Binder-Free Three-Dimensional CuxS Nanoflowers for Lithium Batteries |
title_fullStr |
Facile Synthesis of Binder-Free Three-Dimensional CuxS Nanoflowers for Lithium Batteries |
title_full_unstemmed |
Facile Synthesis of Binder-Free Three-Dimensional CuxS Nanoflowers for Lithium Batteries |
title_sort |
facile synthesis of binder-free three-dimensional cuxs nanoflowers for lithium batteries |
publisher |
Frontiers Media S.A. |
series |
Frontiers in Energy Research |
issn |
2296-598X |
publishDate |
2020-07-01 |
description |
Copper sulfides (CuxS) with different stoichiometry are considered as prospective cathode materials for lithium batteries owing to their large energy storage capability. In this work, three-dimensional CuxS cathodes were synthesized via introducing commercially available copper foam into the solution of dimethyl sulfoxide (DMSO) and sulfur powder. The synthesis procedures were straightforward and ultrafast and did not require additional reagents, high temperature, or long processing time and can be considered as a facile one-step method. Copper sulfide materials with different stoichiometry (x = 1.8, 1.96) were obtained by changing the temperature and the residence time of the copper foam in the DMSO solution. The effects of the temperature and time on phase and morphology of CuxS were characterized by X-ray diffraction and scanning electron microscopy coupled with energy dispersive X-ray spectroscopy. Electrochemical tests resulted in a stable cyclability of Cu1.8S cathode with 100% Coulombic efficiency and capacity of approximately 250 mAh g–1. |
topic |
lithium-ion batteries copper foam sulfur one-step method copper sulfide |
url |
https://www.frontiersin.org/article/10.3389/fenrg.2020.00154/full |
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