Three-Dimensionally Ordered Macroporous ZnO Framework as Dual-Functional Sulfur Host for High-Efficiency Lithium–Sulfur Batteries
A three-dimensionally ordered macroporous ZnO (3DOM ZnO) framework was synthesized by a template method to serve as a sulfur host for lithium–sulfur batteries. The unique 3DOM structure along with an increased active surface area promotes faster and better electrolyte penetration accelerating ion/ma...
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MDPI AG
2020-11-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/10/11/2267 |
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| author | Haisheng Han Tong Wang Yongguang Zhang Arailym Nurpeissova Zhumabay Bakenov |
| author_facet | Haisheng Han Tong Wang Yongguang Zhang Arailym Nurpeissova Zhumabay Bakenov |
| author_sort | Haisheng Han |
| collection | DOAJ |
| description | A three-dimensionally ordered macroporous ZnO (3DOM ZnO) framework was synthesized by a template method to serve as a sulfur host for lithium–sulfur batteries. The unique 3DOM structure along with an increased active surface area promotes faster and better electrolyte penetration accelerating ion/mass transfer. Moreover, ZnO as a polar metal oxide has a strong adsorption capacity for polysulfides, which makes the 3DOM ZnO framework an ideal immobilization agent and catalyst to inhibit the polysulfides shuttle effect and promote the redox reactions kinetics. As a result of the stated advantages, the S/3DOM ZnO composite delivered a high initial capacity of 1110 mAh g<sup>−1</sup> and maintained a capacity of 991 mAh g<sup>−1</sup> after 100 cycles at 0.2 C as a cathode in a lithium–sulfur battery. Even at a high C-rate of 3 C, the S/3DOM ZnO composite still provided a high capacity of 651 mAh g<sup>−1</sup>, as well as a high areal capacity (4.47 mAh cm<sup>−2</sup>) under high loading (5 mg cm<sup>−2</sup>). |
| first_indexed | 2024-03-10T14:49:39Z |
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| id | doaj.art-40bd42f008094a67866b7f9d534155f6 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T14:49:39Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-40bd42f008094a67866b7f9d534155f62023-11-20T21:05:07ZengMDPI AGNanomaterials2079-49912020-11-011011226710.3390/nano10112267Three-Dimensionally Ordered Macroporous ZnO Framework as Dual-Functional Sulfur Host for High-Efficiency Lithium–Sulfur BatteriesHaisheng Han0Tong Wang1Yongguang Zhang2Arailym Nurpeissova3Zhumabay Bakenov4School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, ChinaSchool of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, ChinaSchool of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, ChinaDepartment of Chemical and Materials Engineering, National Laboratory Astana, Nazarbayev University, Nur-Sultan 010000, KazakhstanDepartment of Chemical and Materials Engineering, National Laboratory Astana, Nazarbayev University, Nur-Sultan 010000, KazakhstanA three-dimensionally ordered macroporous ZnO (3DOM ZnO) framework was synthesized by a template method to serve as a sulfur host for lithium–sulfur batteries. The unique 3DOM structure along with an increased active surface area promotes faster and better electrolyte penetration accelerating ion/mass transfer. Moreover, ZnO as a polar metal oxide has a strong adsorption capacity for polysulfides, which makes the 3DOM ZnO framework an ideal immobilization agent and catalyst to inhibit the polysulfides shuttle effect and promote the redox reactions kinetics. As a result of the stated advantages, the S/3DOM ZnO composite delivered a high initial capacity of 1110 mAh g<sup>−1</sup> and maintained a capacity of 991 mAh g<sup>−1</sup> after 100 cycles at 0.2 C as a cathode in a lithium–sulfur battery. Even at a high C-rate of 3 C, the S/3DOM ZnO composite still provided a high capacity of 651 mAh g<sup>−1</sup>, as well as a high areal capacity (4.47 mAh cm<sup>−2</sup>) under high loading (5 mg cm<sup>−2</sup>).https://www.mdpi.com/2079-4991/10/11/2267lithium–sulfur batterythree-dimensionally ordered macroporous ZnOstrong adsorptionfast redox kinetics |
| spellingShingle | Haisheng Han Tong Wang Yongguang Zhang Arailym Nurpeissova Zhumabay Bakenov Three-Dimensionally Ordered Macroporous ZnO Framework as Dual-Functional Sulfur Host for High-Efficiency Lithium–Sulfur Batteries Nanomaterials lithium–sulfur battery three-dimensionally ordered macroporous ZnO strong adsorption fast redox kinetics |
| title | Three-Dimensionally Ordered Macroporous ZnO Framework as Dual-Functional Sulfur Host for High-Efficiency Lithium–Sulfur Batteries |
| title_full | Three-Dimensionally Ordered Macroporous ZnO Framework as Dual-Functional Sulfur Host for High-Efficiency Lithium–Sulfur Batteries |
| title_fullStr | Three-Dimensionally Ordered Macroporous ZnO Framework as Dual-Functional Sulfur Host for High-Efficiency Lithium–Sulfur Batteries |
| title_full_unstemmed | Three-Dimensionally Ordered Macroporous ZnO Framework as Dual-Functional Sulfur Host for High-Efficiency Lithium–Sulfur Batteries |
| title_short | Three-Dimensionally Ordered Macroporous ZnO Framework as Dual-Functional Sulfur Host for High-Efficiency Lithium–Sulfur Batteries |
| title_sort | three dimensionally ordered macroporous zno framework as dual functional sulfur host for high efficiency lithium sulfur batteries |
| topic | lithium–sulfur battery three-dimensionally ordered macroporous ZnO strong adsorption fast redox kinetics |
| url | https://www.mdpi.com/2079-4991/10/11/2267 |
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