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Wang S, He X, Wang S, Huang X, Wu M, Xiang D. FeCoS2/Co4S3/N-doped graphene composite as efficient electrocatalysts for overall water splitting. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Li T, Dong H, Shi Z, Yue H, Yin Y, Li X, Zhang H, Wu X, Li B, Yang S. Composite Nanoarchitectonics with CoS 2 Nanoparticles Embedded in Graphene Sheets for an Anode for Lithium-Ion Batteries. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:724. [PMID: 35215052 PMCID: PMC8875400 DOI: 10.3390/nano12040724] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 01/13/2022] [Accepted: 01/20/2022] [Indexed: 12/10/2022]
Abstract
Cobalt sulfides are attractive as intriguing candidates for anodes in Lithium-ion batteries (LIBs) due to their unique chemical and physical properties. In this work, CoS2@rGO (CSG) was synthesized by a hydrothermal method. TEM showed that CoS2 nanoparticles have an average particle size of 40 nm and were uniformly embedded in the surface of rGO. The battery electrode was prepared with this nanocomposite material and the charge and discharge performance was tested. The specific capacity, rate, and cycle stability of the battery were systematically analyzed. In situ XRD was used to study the electrochemical transformation mechanism of the material. The test results shows that the first discharge specific capacity of this nanocomposite reaches 1176.1 mAhg-1, and the specific capacity retention rate is 61.5% after 100 cycles, which was 47.5% higher than that of the pure CoS2 nanomaterial. When the rate changes from 5.0 C to 0.2 C, the charge-discharge specific capacity of the nanocomposite material can almost be restored to the initial capacity. The above results show that the CSG nanocomposites as a lithium-ion battery anode electrode has a high reversible specific capacity, better rate performance, and excellent cycle performance.
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Affiliation(s)
- Tongjun Li
- School of Physics, Henan Normal University, Xinxiang 453007, China; (T.L.); (Z.S.); (X.L.); (H.Z.)
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China; (H.Y.); (Y.Y.)
- National and Local Joint Engineering Laboratory of Motive Power and Key Materials, Henan Normal University, Xinxiang 453007, China
- Collaborative Innovation Center of Henan Province for Motive Power and Key Materials, Henan Normal University, Xinxiang 453007, China
| | - Hongyu Dong
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China; (H.Y.); (Y.Y.)
- National and Local Joint Engineering Laboratory of Motive Power and Key Materials, Henan Normal University, Xinxiang 453007, China
- Collaborative Innovation Center of Henan Province for Motive Power and Key Materials, Henan Normal University, Xinxiang 453007, China
| | - Zhenpu Shi
- School of Physics, Henan Normal University, Xinxiang 453007, China; (T.L.); (Z.S.); (X.L.); (H.Z.)
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China; (H.Y.); (Y.Y.)
| | - Hongyun Yue
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China; (H.Y.); (Y.Y.)
- National and Local Joint Engineering Laboratory of Motive Power and Key Materials, Henan Normal University, Xinxiang 453007, China
- Collaborative Innovation Center of Henan Province for Motive Power and Key Materials, Henan Normal University, Xinxiang 453007, China
| | - Yanhong Yin
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China; (H.Y.); (Y.Y.)
- National and Local Joint Engineering Laboratory of Motive Power and Key Materials, Henan Normal University, Xinxiang 453007, China
| | - Xiangnan Li
- School of Physics, Henan Normal University, Xinxiang 453007, China; (T.L.); (Z.S.); (X.L.); (H.Z.)
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China; (H.Y.); (Y.Y.)
| | - Huishuang Zhang
- School of Physics, Henan Normal University, Xinxiang 453007, China; (T.L.); (Z.S.); (X.L.); (H.Z.)
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China; (H.Y.); (Y.Y.)
- Collaborative Innovation Center of Henan Province for Motive Power and Key Materials, Henan Normal University, Xinxiang 453007, China
| | - Xianli Wu
- College of Chemistry, Zhengzhou University, Zhengzhou 453000, China; (X.W.); (B.L.)
| | - Baojun Li
- College of Chemistry, Zhengzhou University, Zhengzhou 453000, China; (X.W.); (B.L.)
| | - Shuting Yang
- School of Physics, Henan Normal University, Xinxiang 453007, China; (T.L.); (Z.S.); (X.L.); (H.Z.)
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China; (H.Y.); (Y.Y.)
- National and Local Joint Engineering Laboratory of Motive Power and Key Materials, Henan Normal University, Xinxiang 453007, China
- Collaborative Innovation Center of Henan Province for Motive Power and Key Materials, Henan Normal University, Xinxiang 453007, China
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Dymerska A, Kukułka W, Wenelska K, Mijowska E. Two-Dimensional Molybdenum Diselenide Tuned by Bimetal Co/Ni Nanoparticles for Oxygen Evolution Reaction. ACS OMEGA 2020; 5:28730-28737. [PMID: 33195926 PMCID: PMC7659139 DOI: 10.1021/acsomega.0c04024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 10/13/2020] [Indexed: 06/11/2023]
Abstract
Herein, we report fabrication of MoSe2 functionalized with bimetal Co/Ni particles, which shows promising electrochemical performance in oxygen and hydrogen evolution reactions (OER and HER) due to its physicochemical properties such as electronic configuration and great electrochemical stability. We propose functionalization with two transition metals, cobalt and nickel, expecting a synergic effect in electrocatalytic activity in a water splitting reaction. These electrocatalytic reactions are essential for efficient electrochemical energy storage. The thin flakes were obtained by exfoliation of bulk molybdenum diselenide. Next, after deposition of metals, precursors were carbonized. Electrochemical data reveal that the presence of Ni and Co particles boosts electrocatalyst performance, providing a great number of active sites due to their conductivity. Interestingly, the material exhibited great evolution potential and good stability in long-term tests.
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Affiliation(s)
- Anna Dymerska
- Department of Nanomaterials
Physicochemistry, West Pomeranian University
of Technology, Szczecin, Piastow Avenue 45, Szczecin 70-311, Poland
| | - Wojciech Kukułka
- Department of Nanomaterials
Physicochemistry, West Pomeranian University
of Technology, Szczecin, Piastow Avenue 45, Szczecin 70-311, Poland
| | - Karolina Wenelska
- Department of Nanomaterials
Physicochemistry, West Pomeranian University
of Technology, Szczecin, Piastow Avenue 45, Szczecin 70-311, Poland
| | - Ewa Mijowska
- Department of Nanomaterials
Physicochemistry, West Pomeranian University
of Technology, Szczecin, Piastow Avenue 45, Szczecin 70-311, Poland
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