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Ahmed D, Muhammad N, Ding ZJ. Metallic CoSb and Janus Co 2AsSb monolayers as promising anode materials for metal-ion batteries. Phys Chem Chem Phys 2024; 26:17191-17204. [PMID: 38853749 DOI: 10.1039/d4cp00480a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
Structural symmetry breaking plays a pivotal role in fine-tuning the properties of nano-layered materials. Here, based on the first-principles approaches we propose a Janus monolayer of metallic CoSb by breaking the out-of-plane structural symmetry. Specifically, within the CoSb monolayer by replacing the top-layer 'Sb' with 'As' atoms entirely, the Janus Co2AsSb monolayer can be formed, whose structure is confirmed via structural optimization and ab initio molecular dynamics simulations. Notably, the Janus Co2AsSb monolayer demonstrates stability at an elevated temperature of 1200 K, surpassing the stability of the CoSb monolayer, which remains stable only up to 900 K. We propose that both the CoSb and Janus Co2AsSb monolayers could serve as capable anode materials for power-driven metal-ion batteries, owing to their substantial theoretical capacity and robust binding strength. The theoretical specific capacities for Li/Na reach up to 1038.28/1186.60 mA h g-1 for CoSb, while Janus Co2AsSb demonstrates a marked improvement in electrochemical storage capacity of 3578.69/2215.38 mA h g-1 for Li/Na, representing a significant leap forward in this domain. The symmetry-breaking effect upgrades the CoSb monolayer, as a more viable contender for power-driven metal-ion batteries. Furthermore, electronic structure calculations indicate a notable charge transfer that augments the metallic nature, which would boost electrical conductivity. These simulations demonstrate that the CoSb and Janus Co2AsSb monolayers have immense potential for application in the design of metal-ion battery technologies.
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Affiliation(s)
- Dildar Ahmed
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China.
| | - Nisar Muhammad
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China.
| | - Z J Ding
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China.
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Ahmed D, Muhammad N, Ding ZJ. Black phosphorene/SnSe van der Waals heterostructure as a promising anchoring anode material for metal-ion batteries. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2023; 36:065001. [PMID: 37903432 DOI: 10.1088/1361-648x/ad07f1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 10/30/2023] [Indexed: 11/01/2023]
Abstract
Black phosphorene (BP) is a glowing two-dimensional semiconducting layer material for cutting-edge microelectronics, with high carrier mobility and thickness-dependent band gap. Here, based on van der Waals (vdW)-corrected first-principles approaches, we investigated stacked BP/tin selenide (BP/SnSe) vdW heterostructure as an anode material for metal ion batteries, which exhibits a significant theoretical capacity, along with relatively durable binding strength compared to the constituent BP and SnSe monolayers. Our calculations demonstrated that the Li/Na adatom favors insertion into the interlayer region of BP/SnSe vdW heterostructure owing to synergistic interfacial effect, resulting in comparable diffusivity to the BP and SnSe monolayers. Subsequently, the theoretical specific capacities for Li/Na are found to be as high as 956.30 mAhg-1and 828.79 mAhg-1, respectively, which could be attributed to the much higher storage capacity of Li/Na adatoms in the BP/SnSe vdW heterostructure. Moreover, the electronic structure calculations reveal that a large amount of charge transfer assists in semiconductor-to-metallic transition upon lithiation/sodiation, ensuring good electrical conductivity. These simulations verify that the BP/SnSe vdW heterostructure has immense potential for application in the design of metal-ion battery technologies.
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Affiliation(s)
- Dildar Ahmed
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
| | - Nisar Muhammad
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
| | - Z J Ding
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
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Zhao Z, Xu T, Yu X. Unlock the Potassium Storage Behavior of Single-Phased Tungsten Selenide Nanorods via Large Cation Insertion. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2208096. [PMID: 36341502 DOI: 10.1002/adma.202208096] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 10/23/2022] [Indexed: 06/16/2023]
Abstract
Metal chalcogenide anodes with a layered structure have been regarded as potential K-based electrochemical energy storage devices with high energy density for large-scale energy storage applications. However, their development is impeded by the slow K-ion transport kinetics and poor structural stability. In this work, the energy-storage behavior is investigated first and decisively associated them with the capacity-degradation of the promising layer-structured WSe2 from an integrated chemical and physical point of view. Then, a single-phased WSe2 with pre-intercalated high K content (SP-Kx WSe2 ) is designed to overcome the capacity-degradation issue fundamentally. Theoretical calculations clarify the beneficial effect of K-ions inside the interlayer of WSe2 on boosting its electrochemical performance, including increasing the electronic conductivity, promoting the K-ion diffusivity, and improving the structural stability. The novel design enables the K-ions pre-intercalated WSe2 anode material to exhibit a high reversible specific capacity of 211 mAh g-1 at 5 A g-1 and superior cycling stability (89.3% capacity retention after 5000 cycles at 1 A g-1 ). Especially, the K-ion hybrid capacitor, assembled from the anode of SP-Kx WSe2 and the cathode of porous activated carbon, delivers superior energy-density up to 175 Wh kg-1 , high power-density as well as exceptional cycling stability.
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Affiliation(s)
- Zhongchen Zhao
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Tian Xu
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Xuebin Yu
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
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Wang H, Zhang Y, Zhao Y, Bai G, Xu Y, Jin R, Huang Y, Lin H. Monolayer and bilayer siligraphenes as high-performance anode materials for potassium ion batteries: A first principles study. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119523] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Lee JH, Cho YG, Gu D, Kim SJ. 2D PdTe 2 Thin-Film-Coated Current Collectors for Long-Cycling Anode-Free Rechargeable Batteries. ACS APPLIED MATERIALS & INTERFACES 2022; 14:15080-15089. [PMID: 35227059 DOI: 10.1021/acsami.1c21183] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The practical implementation of anode-free batteries is limited by factors such as lithium dendrite growth and low cycling Coulombic efficiency (CE). In this study, the improvement in the electrochemical performance of anode-free rechargeable lithium batteries bearing a Cu current collector (CC) coated with PdTe2 thin films is reported. The optimized thickness and sputtering heating conditions of the PdTe2 layer are 15 nm and 473.15 K, respectively. Upon deposition on a CC, PdTe2 works as a seed layer that considerably improves the CE in half-cells, owing to its unique 2D structure that reduces the nucleation overpotential. A further contribution to the high performance is brought about by a CuTe interphase between the coating layer and Cu CC formed during heating. Such an interphase contributes to the high CE by improving the uniformity of the current density distribution on the CC that suppresses lithium dendrite growth. A low nucleation overpotential and uniform current density distribution, in turn, result in a smooth morphology of the plated Li. The full cell obtained with the PdTe2-coated CC exhibits a capacity retention of 70.7% after the 100th cycle, with an average CE of 99.65% at a 0.2C rate─an outstanding result in view of the rapid development of lithium-ion batteries.
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Affiliation(s)
- Jun Ho Lee
- School of Energy, Materials and Chemical Engineering, Korea University of Technology and Education (KOREATECH), Cheonan 31253, South Korea
| | - Yoon-Gyo Cho
- Battery R&D, R&D Campus, LG Energy Solution, Daejeon 34122, South Korea
| | - Dongeun Gu
- School of Energy, Materials and Chemical Engineering, Korea University of Technology and Education (KOREATECH), Cheonan 31253, South Korea
| | - Suk Jun Kim
- School of Energy, Materials and Chemical Engineering, Korea University of Technology and Education (KOREATECH), Cheonan 31253, South Korea
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Wu X, Zhang C, Ge H, Liu H, Shang Z, Niu Y. Photoluminescence enhancement in monolayer MoS 2 and self-assembled 3D photonic crystal heterostructures. OPTICS LETTERS 2022; 47:1267-1270. [PMID: 35230344 DOI: 10.1364/ol.447379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 01/10/2022] [Indexed: 06/14/2023]
Abstract
Self-assembled photonic crystals (PCs) have promising applications in enhancing and directional manipulation of the photoemission due to their photonic bandgaps. Here, we employed self-assembled 3D polystyrene PCs to enhance the photoluminescence (PL) of monolayer molybdenum disulfide (MoS2). Through tuning the photonic bandgap of the polystyrene crystals to overlap with the direct emission band of monolayer MoS2, the MoS2/3D-PC heterostructure showed a maximum 12-fold PL enhancement, and Rabi splitting was also observed in the reflection spectrum. The heterostructure is expected to be useful in nanophotonic emitting devices.
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Wen P, Wang H, Wang X, Wang H, Bai Y, Yang Z. Exploring the physicochemical role of Pd dopant in promoting Li-ion diffusion dynamics and storage performance of NbS 2 at the atomic scale. Phys Chem Chem Phys 2022; 24:14877-14885. [DOI: 10.1039/d2cp01340a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The two-dimensional layered niobium disulfide (NbS2), as a kind of anode material for Li-ion batteries, has received great attention because of its excellent electronic conductivity and structural stability.
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Affiliation(s)
- Piaopiao Wen
- Key Laboratory of Low Dimensional Materials & Application Technology of Ministry of Education, School of Materials Science and Engineering, Xiangtan University, Xiangtan, 411105, Hunan, China
| | - Huangkai Wang
- Key Laboratory of Low Dimensional Materials & Application Technology of Ministry of Education, School of Materials Science and Engineering, Xiangtan University, Xiangtan, 411105, Hunan, China
| | - Xianyou Wang
- National Base for International Science & Technology Cooperation, National-Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage and Conversion, School of Chemistry, Xiangtan University, Xiangtan, 411105, Hunan, China
| | - Haibo Wang
- NanChang JiaoTong Institute, Nanchang, 330100, Jiangxi, China
| | - Yansong Bai
- National Base for International Science & Technology Cooperation, National-Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage and Conversion, School of Chemistry, Xiangtan University, Xiangtan, 411105, Hunan, China
| | - Zhenhua Yang
- Key Laboratory of Low Dimensional Materials & Application Technology of Ministry of Education, School of Materials Science and Engineering, Xiangtan University, Xiangtan, 411105, Hunan, China
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Metallic two-dimensional P2C3: A promising flexible anode for high-performance potassium-ion batteries. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126536] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Wang M, Xu S, Cha JJ. Revisiting Intercalation‐Induced Phase Transitions in 2D Group VI Transition Metal Dichalcogenides. ADVANCED ENERGY AND SUSTAINABILITY RESEARCH 2021. [DOI: 10.1002/aesr.202100027] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Mengjing Wang
- Department of Mechanical Engineering and Materials Science Yale University 15 Prospect St New Haven CT 06511 USA
| | - Shiyu Xu
- Department of Mechanical Engineering and Materials Science Yale University 15 Prospect St New Haven CT 06511 USA
| | - Judy J. Cha
- Department of Mechanical Engineering and Materials Science Yale University 15 Prospect St New Haven CT 06511 USA
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Xiong F, Chen Y. A first-principles study of Janus monolayer TiSSe and VSSe as anode materials in alkali metal ion batteries. NANOTECHNOLOGY 2021; 32:025702. [PMID: 32916671 DOI: 10.1088/1361-6528/abb7b4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Anode materials play an important role in the performance of rechargeable batteries and have been attracting much research interest. In this work, we have investigated the electrochemical properties of two-dimensional (2D) Janus MSSe (M = Ti or V) for potential applications as anode materials in alkali metal ion batteries from density functional theory (DFT), following the recent successful synthesis of 2D Janus MoSSe. Our DFT calculations suggest that 2D Janus TiSSe and VSSe are stable in the 1T phase and 1H phase, respectively. It is found that alkali metal atoms X (X = Li, Na or K) can be stably adsorbed on the surfaces of Janus MSSe, and have low diffusion energy barriers. Additionally, small volume changes are observed in Janus MSSe after the adsorption of alkali metal atoms. It is predicted that the MSSe-2X systems have low open circuit voltages and high capacities. Our results suggest that 2D Janus TiSSe and VSSe are potential anode materials for alkali metal ion batteries.
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Affiliation(s)
- Fen Xiong
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Yue Chen
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
- HKU Shenzhen Institute of Research and Innovation, Yuexing 2nd Road, Nanshan, Shenzhen 518057, People's Republic of China
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Yu S, Wei W, Li F, Huang B, Dai Y. Electronic properties of Janus MXY/graphene (M = Mo, W; X ≠ Y = S, Se) van der Waals structures: a first-principles study. Phys Chem Chem Phys 2020; 22:25675-25684. [PMID: 33146159 DOI: 10.1039/d0cp04323k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Based on the first-principles calculations, we studied the intrinsic dipole moment and electronic properties of Janus MXY (M = Mo, W; X ≠ Y = S, Se) monolayers, bilayers and heterostructures with graphene, and the possibility of MXY encapsulating graphene. The results show that Janus MXY monolayer has an intrinsic dipole moment and a direct band gap. However, for MXY bilayers strong interlayer coupling will cause direct to indirect band gap transition, and the existence of the dipole moment leads to a significantly large interlayer band offset, being the driving force for the formation of interlayer excitons. In MXY/graphene heterostructures, changes in the direction of intrinsic dipole moment will cause a change in Schottky barrier height and even the transition between p- and n-type Schottky contacts. Independent of the interface atomic layer of Janus MXY, on one hand, the Dirac cone still exists in graphene, proving that MXY is an ideal coating material. On the other hand, the type-II band alignment will disappear as the intrinsic dipole moment disappears, confirming that the intrinsic dipole moment plays a vital role in the formation of a large band offset. Our results provide guidance for the study of interlayer excitonic states, the experimental construction of atomically thin p-n junctions and the encapsulation of graphene.
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Affiliation(s)
- Shiqiang Yu
- School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China.
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Dai J, Yu B, Ruan Q, Chu PK. Improvement of the Laser-Welded Lap Joint of Dissimilar Mg Alloy and Cu by Incorporation of a Zn Interlayer. MATERIALS 2020; 13:ma13092053. [PMID: 32354066 PMCID: PMC7254189 DOI: 10.3390/ma13092053] [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: 03/09/2020] [Revised: 04/15/2020] [Accepted: 04/25/2020] [Indexed: 11/26/2022]
Abstract
During pulsed laser welding of AZ 31B magnesium (Mg) alloy and T2 pure copper (Cu), Cu2Mg and Mg2Cu are generated, but the bonding ability of the two compounds is usually weak, resulting in low strength. In order to improve the joint of two dissimilar metals, a zinc interlayer was inserted between the Mg alloy and Cu, and the effects of the thickness of the Zn interlayer on the microstructure and properties of the joint were studied. The fused zone consisted of Cu2Mg and MgZn, and, according to first-principles calculation, in the same energy range, the area enclosed by the density of the state curve of MgZn was larger than that of Cu2Mg. Hence, the bonding ability of MgZn was better than that of Cu2Mg, and MgZn improved the strength of the welded joint. The most advantageous thickness of the Zn interlayer was 0.1 mm, and the shear strength was 48.15 MPa that was 161% higher than that of the directly welded Mg/Cu joint.
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Affiliation(s)
- Jun Dai
- Changshu Institute of Technology, School of Automotive Engineering, Changshu 215500, China;
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong; (Q.R.); (P.K.C.)
- Correspondence:
| | - Banglong Yu
- Changshu Institute of Technology, School of Automotive Engineering, Changshu 215500, China;
- School of Mechanical and Electrical Engineering, Soochow University, Suzhou 215021, China
| | - Qingdong Ruan
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong; (Q.R.); (P.K.C.)
| | - Paul K. Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong; (Q.R.); (P.K.C.)
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