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Highly Efficient, Remarkable Sensor Activity and energy storage properties of MXenes and Borophene nanomaterials. PROG SOLID STATE CH 2023. [DOI: 10.1016/j.progsolidstchem.2023.100392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
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Peng H, Han S, Zhao J, Klimova-Korsmik O, Tolochko OV, Kurbanov MS, Zhang C, Ji P, Wang GK. 2D Heterolayer-Structured MoSe 2-Carbon with Fast Kinetics for Sodium-Ion Capacitors. Inorg Chem 2023; 62:1602-1610. [PMID: 36661296 DOI: 10.1021/acs.inorgchem.2c03819] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Two-dimensional (2D) layered MoSe2 has been demonstrated to be a promising electrode material for new energy storage systems. However, its nature of poor conductivity and the undesirable interlayer spacing hinder its further application. In this paper, a general and simple plasma-enhanced chemical vapor deposition method is proposed to produce 2D heterolayer-structured MoSe2-carbon (MoSe2/C) with carbon atoms inserted in the MoSe2 layers. After morphology optimization, when applying flat-type MoSe2/C-200 nanosheets with an enlarged interlayer spacing of 0.79 nm as the anode and activated carbon as the cathode, the assembled sodium-ion hybrid capacitors can reach a maximum energy/power density of 116.5 W h kg-1/107.5 W kg-1 and exhibit superior cycling durability (91.3% capacitance retention after 4000 cycles at 1 A g-1). The good electrochemical property can be ascribed to the enlarged interlayer spacing that can offer fast diffusion channels for Na ions, and the carbon layer sandwiched in the MoSe2 layer can not only enhance the electron transfer, accelerating the reaction kinetics, but also alleviate the volume change of MoSe2, ensuring the good stability of the electrode. The proposed approach can also be extended to other 2D transition metal chalcogenide (TMC) materials for constructing the TMC/C heterostructures for the application in energy storage systems.
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Affiliation(s)
- Huifen Peng
- School of Materials Science & Engineering and Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, Hebei University of Technology, Tianjin300130, China
| | - Shuangbin Han
- School of Materials Science & Engineering and Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, Hebei University of Technology, Tianjin300130, China
| | - Jiamin Zhao
- School of Materials Science & Engineering and Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, Hebei University of Technology, Tianjin300130, China
| | - Olga Klimova-Korsmik
- World-class Research Center "Advanced Digital Technologies", State Marine Technical University, Saint Petersburg190121Russian Federation
| | - Oleg Viktorovich Tolochko
- World-class Research Center "Advanced Digital Technologies", State Marine Technical University, Saint Petersburg190121Russian Federation.,Peter the Great St. Petersburg Polytechnic University, Saint Petersburg195251, Russian Federation
| | | | - Chengwei Zhang
- School of Materials Science & Engineering and Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, Hebei University of Technology, Tianjin300130, China
| | - Puguang Ji
- School of Materials Science & Engineering and Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, Hebei University of Technology, Tianjin300130, China.,World-class Research Center "Advanced Digital Technologies", State Marine Technical University, Saint Petersburg190121Russian Federation
| | - Gong Kai Wang
- School of Materials Science & Engineering and Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, Hebei University of Technology, Tianjin300130, China
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High-strength Ti2AlN ceramics prepared by pulse electric current sintering based on powders synthesized by molten salt method. Ann Ital Chir 2022. [DOI: 10.1016/j.jeurceramsoc.2021.11.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Chen W, Tang J, Lin X, Ai Y, Ye N. Formation Mechanism of High-Purity Ti 2AlN Powders under Microwave Sintering. MATERIALS 2020; 13:ma13235356. [PMID: 33255878 PMCID: PMC7728301 DOI: 10.3390/ma13235356] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 11/21/2020] [Accepted: 11/23/2020] [Indexed: 11/16/2022]
Abstract
In the present study, high-purity ternary-phase nitride (Ti2AlN) powders were synthesized through microwave sintering using TiH2, Al, and TiN powders as raw materials. X-ray diffraction (XRD), differential scanning calorimetry (DSC), transmission electron microscopy (TEM), and scanning electron microscopy (SEM) were adopted to characterize the as-prepared powders. It was found that the Ti2AlN powder prepared by the microwave sintering of the 1TiH2/1.15Al/1TiN mixture at 1250 °C for 30 min manifested great purity (96.68%) with uniform grain size distribution. The formation mechanism of Ti2AlN occurred in four stages. The solid-phase reaction of Ti/Al and Ti/TiN took place below the melting point of aluminum and formed Ti2Al and TiN0.5 phases, which were the main intermediates in Ti2AlN formation. Therefore, the present work puts forward a favorable method for the preparation of high-purity Ti2AlN powders.
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Affiliation(s)
- Weihua Chen
- School of Material Science and Engineering, Nanchang University, No. 999, Xuefu Avenue, Nanchang 330031, China; (W.C.); (N.Y.)
- School of Materials Science and Engineering, Nanchang Hangkong University, No. 696, South Fenhe Avenue, Nanchang 330063, China; (X.L.); (Y.A.)
| | - Jiancheng Tang
- School of Material Science and Engineering, Nanchang University, No. 999, Xuefu Avenue, Nanchang 330031, China; (W.C.); (N.Y.)
- Correspondence: ; Tel.: +86-13-607-092-030
| | - Xinghao Lin
- School of Materials Science and Engineering, Nanchang Hangkong University, No. 696, South Fenhe Avenue, Nanchang 330063, China; (X.L.); (Y.A.)
- Huaneng Fuzhou Power Plant, No. 239 Dongan, Hangcheng Street, Changle 350200, China
| | - Yunlong Ai
- School of Materials Science and Engineering, Nanchang Hangkong University, No. 696, South Fenhe Avenue, Nanchang 330063, China; (X.L.); (Y.A.)
| | - Nan Ye
- School of Material Science and Engineering, Nanchang University, No. 999, Xuefu Avenue, Nanchang 330031, China; (W.C.); (N.Y.)
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