NiCo<sub>2</sub>S<sub>4</sub>/MoS<sub>2</sub> Nanocomposites for Long-Life High-Performance Hybrid Supercapacitors
Metal sulfides (MS) and mixed metal sulfides (MTMS) have been considered potential candidates over their metal oxide/mixed metal oxide counterparts in recent years. Herein, one MTMS, i.e., NiCo<sub>2</sub>S<sub>4</sub>, was combined with 2D MS MoS<sub>2</sub> thro...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-02-01
|
| Series: | Nanomaterials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-4991/13/4/689 |
| _version_ | 1827756155316731904 |
|---|---|
| author | Le Nhu Minh Tue Sumanta Sahoo Ganesh Dhakal Van Hoa Nguyen Jintae Lee Yong Rok Lee Jae-Jin Shim |
| author_facet | Le Nhu Minh Tue Sumanta Sahoo Ganesh Dhakal Van Hoa Nguyen Jintae Lee Yong Rok Lee Jae-Jin Shim |
| author_sort | Le Nhu Minh Tue |
| collection | DOAJ |
| description | Metal sulfides (MS) and mixed metal sulfides (MTMS) have been considered potential candidates over their metal oxide/mixed metal oxide counterparts in recent years. Herein, one MTMS, i.e., NiCo<sub>2</sub>S<sub>4</sub>, was combined with 2D MS MoS<sub>2</sub> through a single-step solvothermal process with different morphologies (sheet-like and rod-like) for supercapacitor applications. The resulting electrode exhibited excellent coulombic efficiency, high specific capacitance, superior energy density, and, most importantly, ultra-high cycling stability. In particular, the electrode delivered a capacitance of 2594 F g<sup>−1</sup> at 0.8 A g<sup>−1</sup> after 45,000 charge/discharge cycles with a remarkable stability of 192%. Moreover, the corresponding hybrid supercapacitor device displayed an impressive coulombic efficiency of 123% after 20,000 cycles and 118% after 45,000 cycles. In addition, the device also exhibited a decent energy density of 31.9 Wh kg<sup>−1</sup> and good cycling stability of 102% over 15,000 cycles. |
| first_indexed | 2024-03-11T08:20:05Z |
| format | Article |
| id | doaj.art-9acd59546c934494964e58162d5b665f |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-11T08:20:05Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-9acd59546c934494964e58162d5b665f2023-11-16T22:27:35ZengMDPI AGNanomaterials2079-49912023-02-0113468910.3390/nano13040689NiCo<sub>2</sub>S<sub>4</sub>/MoS<sub>2</sub> Nanocomposites for Long-Life High-Performance Hybrid SupercapacitorsLe Nhu Minh Tue0Sumanta Sahoo1Ganesh Dhakal2Van Hoa Nguyen3Jintae Lee4Yong Rok Lee5Jae-Jin Shim6School of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan 38541, Gyeongbuk, Republic of KoreaSchool of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan 38541, Gyeongbuk, Republic of KoreaSchool of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan 38541, Gyeongbuk, Republic of KoreaDepartment of Chemistry, Nha Trang University, 2 Nguyen Dinh Chieu, Nha Trang, VietnamSchool of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan 38541, Gyeongbuk, Republic of KoreaSchool of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan 38541, Gyeongbuk, Republic of KoreaSchool of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan 38541, Gyeongbuk, Republic of KoreaMetal sulfides (MS) and mixed metal sulfides (MTMS) have been considered potential candidates over their metal oxide/mixed metal oxide counterparts in recent years. Herein, one MTMS, i.e., NiCo<sub>2</sub>S<sub>4</sub>, was combined with 2D MS MoS<sub>2</sub> through a single-step solvothermal process with different morphologies (sheet-like and rod-like) for supercapacitor applications. The resulting electrode exhibited excellent coulombic efficiency, high specific capacitance, superior energy density, and, most importantly, ultra-high cycling stability. In particular, the electrode delivered a capacitance of 2594 F g<sup>−1</sup> at 0.8 A g<sup>−1</sup> after 45,000 charge/discharge cycles with a remarkable stability of 192%. Moreover, the corresponding hybrid supercapacitor device displayed an impressive coulombic efficiency of 123% after 20,000 cycles and 118% after 45,000 cycles. In addition, the device also exhibited a decent energy density of 31.9 Wh kg<sup>−1</sup> and good cycling stability of 102% over 15,000 cycles.https://www.mdpi.com/2079-4991/13/4/689supercapacitorNiCo<sub>2</sub>S<sub>4</sub>MoS<sub>2</sub>coulombic efficiencycycling stability |
| spellingShingle | Le Nhu Minh Tue Sumanta Sahoo Ganesh Dhakal Van Hoa Nguyen Jintae Lee Yong Rok Lee Jae-Jin Shim NiCo<sub>2</sub>S<sub>4</sub>/MoS<sub>2</sub> Nanocomposites for Long-Life High-Performance Hybrid Supercapacitors Nanomaterials supercapacitor NiCo<sub>2</sub>S<sub>4</sub> MoS<sub>2</sub> coulombic efficiency cycling stability |
| title | NiCo<sub>2</sub>S<sub>4</sub>/MoS<sub>2</sub> Nanocomposites for Long-Life High-Performance Hybrid Supercapacitors |
| title_full | NiCo<sub>2</sub>S<sub>4</sub>/MoS<sub>2</sub> Nanocomposites for Long-Life High-Performance Hybrid Supercapacitors |
| title_fullStr | NiCo<sub>2</sub>S<sub>4</sub>/MoS<sub>2</sub> Nanocomposites for Long-Life High-Performance Hybrid Supercapacitors |
| title_full_unstemmed | NiCo<sub>2</sub>S<sub>4</sub>/MoS<sub>2</sub> Nanocomposites for Long-Life High-Performance Hybrid Supercapacitors |
| title_short | NiCo<sub>2</sub>S<sub>4</sub>/MoS<sub>2</sub> Nanocomposites for Long-Life High-Performance Hybrid Supercapacitors |
| title_sort | nico sub 2 sub s sub 4 sub mos sub 2 sub nanocomposites for long life high performance hybrid supercapacitors |
| topic | supercapacitor NiCo<sub>2</sub>S<sub>4</sub> MoS<sub>2</sub> coulombic efficiency cycling stability |
| url | https://www.mdpi.com/2079-4991/13/4/689 |
| work_keys_str_mv | AT lenhuminhtue nicosub2subssub4submossub2subnanocompositesforlonglifehighperformancehybridsupercapacitors AT sumantasahoo nicosub2subssub4submossub2subnanocompositesforlonglifehighperformancehybridsupercapacitors AT ganeshdhakal nicosub2subssub4submossub2subnanocompositesforlonglifehighperformancehybridsupercapacitors AT vanhoanguyen nicosub2subssub4submossub2subnanocompositesforlonglifehighperformancehybridsupercapacitors AT jintaelee nicosub2subssub4submossub2subnanocompositesforlonglifehighperformancehybridsupercapacitors AT yongroklee nicosub2subssub4submossub2subnanocompositesforlonglifehighperformancehybridsupercapacitors AT jaejinshim nicosub2subssub4submossub2subnanocompositesforlonglifehighperformancehybridsupercapacitors |