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Robertson DD, Cumberbatch H, Pe DJ, Yao Y, Tolbert SH. Understanding How the Suppression of Insertion-Induced Phase Transitions Leads to Fast Charging in Nanoscale Li xMoO 2. ACS NANO 2024; 18:996-1012. [PMID: 38153208 DOI: 10.1021/acsnano.3c10169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
Fast-charging Li-ion batteries are technologically important for the electrification of transportation and the implementation of grid-scale storage, and additional fundamental understanding of high-rate insertion reactions is necessary to overcome current rate limitations. In particular, phase transformations during ion insertion have been hypothesized to slow charging. Nanoscale materials with modified transformation behavior often show much faster kinetics, but the mechanism for these changes and their specific contribution to fast-charging remain poorly understood. In this work, we combine operando synchrotron X-ray diffraction with electrochemical kinetics analyses to illustrate how nanoscale crystal size leads to suppression of first-order insertion-induced phase transitions and their negative kinetic effects in MoO2, a tunnel structure host material. In electrodes made with micrometer-scale particles, large first-order phase transitions during cycling lower capacity, slow charge storage, and decrease cycle life. In medium-sized nanoporous MoO2, the phase transitions remain first-order, but show a considerably smaller miscibility gap and shorter two-phase coexistence region. Finally, in small MoO2 nanocrystals, the structural evolution during lithiation becomes entirely single-phase/solid-solution. For all nanostructured materials, the changes to the phase transition dynamics lead to dramatic improvements in capacity, rate capability, and cycle life. This work highlights the continuous evolution from a kinetically hindered battery material in bulk form to a fast-charging, pseudocapacitive material through nanoscale size effects. As such, it provides key insight into how phase transitions can be effectively controlled using nanoscale size and emphasizes the importance of these structural dynamics to the fast rate capability observed in nanostructured electrode materials.
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Affiliation(s)
- Daniel D Robertson
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095-1569, United States
| | - Helen Cumberbatch
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095-1569, United States
| | - David J Pe
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095-1569, United States
| | - Yiyi Yao
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095-1569, United States
| | - Sarah H Tolbert
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095-1569, United States
- Department of Materials Science and Engineering, UCLA, Los Angeles, California 90095-1595, United States
- The California NanoSystems Institute, UCLA, Los Angeles, California 90095, United States
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2
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Wang B, Li J, Li D, Xu J, Liu S, Jiang Q, Zhang Y, Duan Z, Zhang F. Single Atom Iridium Decorated Nickel Alloys Supported on Segregated MoO 2 for Alkaline Water Electrolysis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023:e2305437. [PMID: 38109742 DOI: 10.1002/adma.202305437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 12/04/2023] [Indexed: 12/20/2023]
Abstract
Hetero-interface engineering has been widely employed to develop supported multicomponent catalysts for water electrolysis, but it still remains a substantial challenge for supported single atom alloys. Herein a conductive oxide MoO2 supported Ir1 Ni single atom alloys (Ir1 Ni@MoO2 SAAs) bifunctional electrocatalysts through surface segregation coupled with galvanic replacement reaction, where the Ir atoms are atomically anchored onto the surface of Ni nanoclusters via the Ir-Ni coordination accompanied with electron transfer from Ni to Ir is reported. Benefiting from the unique structure, the Ir1 Ni@MoO2 SAAs not only exhibit low overpotential of 48.6 mV at 10 mA cm-2 and Tafel slope of 19 mV dec-1 for hydrogen evolution reaction, but also show highly efficient alkaline water oxidation with overpotential of 280 mV at 10 mA cm-2 . Their overall water electrolysis exhibits a low cell voltage of 1.52 V at 10 mA cm-2 and excellent durability. Experiments and theoretical calculations reveal that the Ir-Ni interface effectively weakens hydrogen binding energy, and decoration of the Ir single atoms boost surface reconstruction of Ni species to enhance the coverage of intermediates (OH*) and switch the potential-determining step. It is suggested that this approach opens up a promising avenue to design efficient and durable precious metal bifunctional electrocatalysts.
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Affiliation(s)
- Bin Wang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, The Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Zhongshan Road 457, Dalian, 116023, P. R. China
- Center for Advanced Materials Research, School of Materials and Chemical Engineering, Zhongyuan University of Technology, Zhongyuan Road 41, Zhengzhou, 450007, P. R. China
| | - Jiangnan Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, The Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Zhongshan Road 457, Dalian, 116023, P. R. China
| | - Dongze Li
- Laboratory of Advanced Spectro-Electrochemistry and Li-Ion Batteries, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian, 116023, P. R. China
| | - Junyuan Xu
- Laboratory of Advanced Spectro-Electrochemistry and Li-Ion Batteries, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian, 116023, P. R. China
| | - Shoujie Liu
- School of Materials Science and Engineering, Anhui University, Jiulong Road 111, Hefei, 230601, P. R. China
| | - Qike Jiang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, The Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Zhongshan Road 457, Dalian, 116023, P. R. China
| | - Yashi Zhang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, The Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Zhongshan Road 457, Dalian, 116023, P. R. China
| | - Zhiyao Duan
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Dongxiang Road 1, Xi'an, 710072, P. R. China
| | - Fuxiang Zhang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, The Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Zhongshan Road 457, Dalian, 116023, P. R. China
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3
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Thieu NA, Li W, Chen X, Li Q, Wang Q, Velayutham M, Grady ZM, Li X, Li W, Khramtsov VV, Reed DM, Li X, Liu X. Synergistically Stabilizing Zinc Anodes by Molybdenum Dioxide Coating and Tween 80 Electrolyte Additive for High-Performance Aqueous Zinc-Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2023; 15:55570-55586. [PMID: 38058105 DOI: 10.1021/acsami.3c08474] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/08/2023]
Abstract
Recently, aqueous zinc-ion batteries (ZIBs) have become increasingly attractive as grid-scale energy storage solutions due to their safety, low cost, and environmental friendliness. However, severe dendrite growth, self-corrosion, hydrogen evolution, and irreversible side reactions occurring at Zn anodes often cause poor cyclability of ZIBs. This work develops a synergistic strategy to stabilize the Zn anode by introducing a molybdenum dioxide coating layer on Zn (MoO2@Zn) and Tween 80 as an electrolyte additive. Due to the redox capability and high electrical conductivity of MoO2, the coating layer can not only homogenize the surface electric field but also accommodate the Zn2+ concentration field in the vicinity of the Zn anode, thereby regulating Zn2+ ion distribution and inhibiting side reactions. MoO2 coating can also significantly enhance surface hydrophilicity to improve the wetting of electrolyte on the Zn electrode. Meanwhile, Tween 80, a surfactant additive, acts as a corrosion inhibitor, preventing Zn corrosion and regulating Zn2+ ion migration. Their combination can synergistically work to reduce the desolvation energy of hydrated Zn ions and stabilize the Zn anodes. Therefore, the symmetric cells of MoO2@Zn∥MoO2@Zn with optimal 1 mM Tween 80 additive in 1 M ZnSO4 achieve exceptional cyclability over 6000 h at 1 mA cm-2 and stability (>700 h) even at a high current density (5 mA cm-2). When coupling with the VO2 cathode, the full cell of MoO2@Zn∥VO2 shows a higher capacity retention (82.4%) compared to Zn∥VO2 (57.3%) after 1000 cycles at 5 A g-1. This study suggests a synergistic strategy of combining surface modification and electrolyte engineering to design high-performance ZIBs.
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Affiliation(s)
- Nhat Anh Thieu
- Department of Mechanical and Aerospace Engineering, Benjamin M. Statler College of Engineering and Mineral Resources, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Wei Li
- Department of Mechanical and Aerospace Engineering, Benjamin M. Statler College of Engineering and Mineral Resources, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Xiujuan Chen
- Department of Mechanical and Aerospace Engineering, Benjamin M. Statler College of Engineering and Mineral Resources, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Qingyuan Li
- Department of Mechanical and Aerospace Engineering, Benjamin M. Statler College of Engineering and Mineral Resources, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Qingsong Wang
- Bavarian Center for Battery Technology (BayBatt), Department of Chemistry, University of Bayreuth, Universitätsstrasse 30, 95447 Bayreuth, Germany
| | - Murugesan Velayutham
- In Vivo Multifunctional Magnetic Resonance Center, Robert C. Byrd Health Sciences Center, West Virginia University, Morgantown, West Virginia 26506, United States
- Department of Biochemistry and Molecular Medicine, School of Medicine, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Zane M Grady
- Energy and Environmental Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Xuemei Li
- Department of Chemical and Biomedical Engineering, Benjamin M. Statler College of Engineering and Mineral Resources, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Wenyuan Li
- Department of Chemical and Biomedical Engineering, Benjamin M. Statler College of Engineering and Mineral Resources, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Valery V Khramtsov
- In Vivo Multifunctional Magnetic Resonance Center, Robert C. Byrd Health Sciences Center, West Virginia University, Morgantown, West Virginia 26506, United States
- Department of Biochemistry and Molecular Medicine, School of Medicine, West Virginia University, Morgantown, West Virginia 26506, United States
| | - David M Reed
- Energy and Environmental Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Xiaolin Li
- Energy and Environmental Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Xingbo Liu
- Department of Mechanical and Aerospace Engineering, Benjamin M. Statler College of Engineering and Mineral Resources, West Virginia University, Morgantown, West Virginia 26506, United States
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4
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Zhu Y, Ma J, Das P, Wang S, Wu ZS. High-Voltage MXene-Based Supercapacitors: Present Status and Future Perspectives. SMALL METHODS 2023; 7:e2201609. [PMID: 36703554 DOI: 10.1002/smtd.202201609] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 12/30/2022] [Indexed: 06/18/2023]
Abstract
As an emerging class of 2D materials, MXene exhibits broad prospects in the field of supercapacitors (SCs). However, the working voltage of MXene-based SCs is relatively limited (typically ≤ 0.6 V) due to the oxidation of MXene electrode and the decomposition of electrolyte, ultimately leading to low energy density of the device. To solve this issue, high-voltage MXene-based electrodes and corresponding matchable electrolytes are developed urgently to extend the voltage window of MXene-based SCs. Herein, a comprehensive overview and systematic discussion regarding the effects of electrolytes (aqueous, organic, and ionic liquid electrolytes), asymmetric device configuration, and material modification on the operating voltage of MXene-based SCs, is presented. A deep dive is taken into the latest advances in electrolyte design, structure regulation, and high-voltage mechanism of MXene-based SCs. Last, the future perspectives on high-voltage MXene-based SCs and their possible development directions are outlined and discussed in depth, providing new insights for the rational design and realization of advanced next-generation MXene-based electrodes and high-voltage electrolytes.
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Affiliation(s)
- Yuanyuan Zhu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
- Key Laboratory of Spin Electron and Nanomaterials of Anhui Higher Education Institutes, Suzhou University, Suzhou, 234000, China
| | - Jiaxin Ma
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, 19 A Yuquan Road, Shijingshan District, Beijing, 100049, China
| | - Pratteek Das
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Sen Wang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Zhong-Shuai Wu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
- Dalian National Laboratory for Clean Energy, Chinese Academy of Sciences, Dalian, 116023, China
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5
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Cai C, Gao L, Sun T, Koenig GM. Stable Multicomponent Multiphase All Active Material Lithium-Ion Battery Anodes. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37433754 DOI: 10.1021/acsami.3c02896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/13/2023]
Abstract
Due to their high energy density, lithium-ion batteries have been the state-of-the-art energy storage technology for many applications. Energy density can be further improved by engineering of the electrode architecture and microstructure, in addition to more common improvements via materials chemistry. All active material (AAM) electrodes consist of only the electroactive material that stores energy, and such electrodes have advantages to conventional composite processing with regards to improved mechanical stability at increased thicknesses and ion transport properties. However, the absence of binders and composite processing makes the electrode more vulnerable to electroactive materials with volume change upon cycling. Also, the electroactive material must have sufficient electronic conductivity to avoid large matrix electronic overpotentials during electrochemical cycling. TiNb2O7 (TNO) and MoO2 (MO) are electroactive materials with potential advantages as AAM electrodes due to relatively high volumetric energy density. TNO has higher energy density, and MO has much higher electronic conductivity, and thus a multicomponent blend of these materials was evaluated as an AAM anode. Herein, blends of TNO and MO as AAM anodes were investigated, where this is the first use of a multicomponent AAM anode. Electrodes that had both TNO and MO had the highest volumetric energy density, rate capability, and cycle life relative to single component TNO and MO anodes. Thus, using multicomponent materials provides a route to improve AAM electrochemical systems.
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Affiliation(s)
- Chen Cai
- Department of Chemical Engineering, University of Virginia, 102 Engineers Way, Charlottesville, Virginia 22904-4741, United States
| | - Lin Gao
- Department of Materials Science and Engineering, University of Virginia, 395 McCormick Road, Charlottesville, Virginia 22904, United States
| | - Tao Sun
- Department of Materials Science and Engineering, University of Virginia, 395 McCormick Road, Charlottesville, Virginia 22904, United States
| | - Gary M Koenig
- Department of Chemical Engineering, University of Virginia, 102 Engineers Way, Charlottesville, Virginia 22904-4741, United States
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6
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Performance enhancement of α-MnO2 through tunnel-size and morphology adjustment as pseudocapacitive electrode. Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2023.142172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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7
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Tang P, Tan W, Li F, Xue S, Ma Y, Jing P, Liu Y, Zhu J, Yan X. A Pseudocapacitor Diode Based on Ion-Selective Surface Redox Effect. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2209186. [PMID: 36564639 DOI: 10.1002/adma.202209186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 11/25/2022] [Indexed: 06/17/2023]
Abstract
Supercapacitor diode (CAPode) is a novel device that integrates ion diode functionality into a conventional electrical double-layer capacitor and is expected to have great applications in emerging fields such as signal propagation, microcircuit rectification, logic operations, and neuromorphology. Here, a brand new pseudocapacitor diode is reported that has both high charge storage (50.2 C g-1 at 20 mV s-1 ) and high rectification (the rectification ratio of 0.79 at 200 mV s-1 ) properties, which is realized by the ion-selective surface redox reaction of spinel ZnCo2 O4 in aqueous alkaline electrolyte. Furthermore, an application of the integrated device is demonstrated in the logic gate of circuit system to realize the logic operations of "AND" and "OR". This work not only expands the types of CAPodes, but also provides a train of thought for constructing high-performance capacitive ionic diodes.
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Affiliation(s)
- Pei Tang
- Department of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Wuyang Tan
- Department of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Fangzhou Li
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangzhou, Guangdong, 510275, China
- School of Materials, Sun Yat-Sen University, Guangzhou, Guangdong, 510275, China
| | - Shan Xue
- Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, South China Normal University, Guangzhou, 510006, China
| | - Yihui Ma
- South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, China
| | - Pengwei Jing
- Department of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Yanghui Liu
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangzhou, Guangdong, 510275, China
- School of Materials, Sun Yat-Sen University, Guangzhou, Guangdong, 510275, China
| | - Jian Zhu
- Department of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Xingbin Yan
- Department of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangzhou, Guangdong, 510275, China
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8
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Wu J, Jing M, Wu T, Yi M, Bai Y, Deng W, Zhu Y, Yang Y, Wang X. Enhanced Kinetic Behaviors of Hollow MoO2/MoS2 Nanospheres for Sodium-Ion-Based Energy Storage. J Colloid Interface Sci 2023; 641:831-841. [PMID: 36966572 DOI: 10.1016/j.jcis.2023.03.066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 03/07/2023] [Accepted: 03/10/2023] [Indexed: 03/16/2023]
Abstract
Mo-based heterostructures offer a new strategy to improve the electronics/ion transport and diffusion kinetics of the anode materials for sodium-ion batteries (SIBs). MoO2/MoS2 hollow nanospheres have been successfully designed via in-situ ion exchange technology with the spherical coordination compound Mo-glycerates (MoG). The structural evolution processes of pure MoO2, MoO2/MoS2, and pure MoS2 materials have been investigated, illustrating that the structureofthenanospherecan be maintained by introducing the S-Mo-S bond. Based on the high conductivity of MoO2, the layered structure of MoS2 and the synergistic effect between components, as-obtained MoO2/MoS2 hollow nanospheres display enhanced electrochemical kinetic behaviors for SIBs. The MoO2/MoS2 hollow nanospheres achieve a rate performance with 72% capacity retention at a current of 3200 mA g-1 compared to 100 mA g-1. The capacity can be restored to the initial capacity after a current returns to 100 mA g-1, while the capacity fading of pure MoS2 is up to 24%. Moreover, the MoO2/MoS2 hollow nanospheres also exhibit cycling stability, maintaining a stable capacity of 455.4 mAh g-1 after 100 cycles at a current of 100 mA g-1. In this work, the design strategy for the hollow composite structure provides insight into the preparation of energy storage materials.
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9
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Deng Y, Zhao Y, Peng K, Yu L. One-Step Hydrothermal Synthesis of MoO 2/MoS 2 Nanocomposites as High-Performance Electrode Material for Supercapacitors. ACS APPLIED MATERIALS & INTERFACES 2022; 14:49909-49918. [PMID: 36314603 DOI: 10.1021/acsami.2c11244] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
By only changing the ratio of Mo to S source, a distinctive single phase MoO2 or MoS2 and MoO2/MoS2 nanocomposites (NCs) are obtained through a simple one-step hydrothermal method based on CH4N2S as a sulfur source and (NH4)6Mo7O24·4H2O as a source of Mo in oxalic acid. The effect of ratio of Mo to S source on the composition, structure, and electrochemical performance are systematically researched. Due to its unique design, abundant macropores active sites in MoO2/MoS2 NCs induce superior rate property (55.30% capacitance retention to 20 from 1 A g-1) and larger specific capacitance (1667.3 F g-1 at 1 A g-1) and longer cycle life (94.75% after 5000 cycles) as used directly as an electrode. Furthermore, at a power density of 225 W kg-1, a maximal energy density of 21.85 Wh kg-1 is provided by the asymmetric supercapacitor (MoO2/MoS2//AC). The capacitance of asymmetric supercapacitor (ASC) is remarkably enhanced by 129.02% under 5000 cycles at a current density of 1.5 A g-1, demonstrating outstanding cycle property. These results imply the prepared MoO2/MoS2 NCs have promising applications in advanced energy storages. It is important and should be noted that NCs of oxide and sulfide are prepared with only a simple one-step process.
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Affiliation(s)
- Yakun Deng
- College of Physics and Materials, Nanchang University, Nanchang330031, P. R. China
| | - Youjun Zhao
- College of Physics and Materials, Nanchang University, Nanchang330031, P. R. China
| | - Kangliang Peng
- College of Physics and Materials, Nanchang University, Nanchang330031, P. R. China
| | - Lixin Yu
- College of Physics and Materials, Nanchang University, Nanchang330031, P. R. China
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10
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Limbu TB, Adhikari B, Song SK, Chitara B, Tang Y, Parsons GN, Yan F. Toward understanding the phase-selective growth mechanism of films and geometrically-shaped flakes of 2D MoTe 2. RSC Adv 2021; 11:38839-38848. [PMID: 35493247 PMCID: PMC9044229 DOI: 10.1039/d1ra07787b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 11/30/2021] [Indexed: 12/21/2022] Open
Abstract
Two-dimensional (2D) molybdenum ditelluride (MoTe2) is an interesting material for fundamental study and applications, due to its ability to exist in different polymorphs of 2H, 1T, and 1T′, their phase change behavior, and unique electronic properties. Although much progress has been made in the growth of high-quality flakes and films of 2H and 1T′-MoTe2 phases, phase-selective growth of all three phases remains a huge challenge, due to the lack of enough information on their growth mechanism. Herein, we present a novel approach to growing films and geometrical-shaped few-layer flakes of 2D 2H-, 1T-, and 1T′-MoTe2 by atmospheric-pressure chemical vapor deposition (APCVD) and present a thorough understanding of the phase-selective growth mechanism by employing the concept of thermodynamics and chemical kinetics involved in the growth processes. Our approach involves optimization of growth parameters and understanding using thermodynamical software, HSC Chemistry. A lattice strain-mediated mechanism has been proposed to explain the phase selective growth of 2D MoTe2, and different chemical kinetics-guided strategies have been developed to grow MoTe2 flakes and films. This study investigates the phase-controlled growth of flakes and films of 2D MoTe2 by atmospheric-pressure chemical vapor deposition and presents a thorough understanding on the growth mechanism.![]()
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Affiliation(s)
- Tej B Limbu
- Department of Chemistry and Biochemistry, North Carolina Central University Durham NC 27707 USA .,Department of Physical and Applied Sciences, University of Houston-Clear Lake Houston TX 77058 USA
| | - Bikram Adhikari
- Department of Chemistry and Biochemistry, North Carolina Central University Durham NC 27707 USA
| | - Seung Keun Song
- Department of Chemical and Biomolecular Engineering, North Carolina State University Raleigh North Carolina 27695 USA
| | - Basant Chitara
- Department of Chemistry and Biochemistry, North Carolina Central University Durham NC 27707 USA
| | - Yongan Tang
- Department of Mathematics and Physics, North Carolina Central University Durham NC 27707 USA
| | - Gregory N Parsons
- Department of Chemical and Biomolecular Engineering, North Carolina State University Raleigh North Carolina 27695 USA
| | - Fei Yan
- Department of Chemistry and Biochemistry, North Carolina Central University Durham NC 27707 USA
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11
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Li R, Dong W, Pan J, Huang F. Micrometer-Sized, Dual-Conductive MoO 2 /β-MoO 3- x Mosaics for High Volumetric Capacity Li/Na-Ion Batteries. SMALL METHODS 2021; 5:e2100765. [PMID: 34927962 DOI: 10.1002/smtd.202100765] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 09/12/2021] [Indexed: 06/14/2023]
Abstract
The transition metal oxides (TMOs) with high volumetric capacities are promising anodes for the future electronics, however, they usually suffer from severe capacity decay and poor rate capability. Carbon hybridization and nanosizing can resolve these challenges, yet these significantly compromise the volumetric capacity. Herein, both high capacity and long cycling stability are simultaneously achieved in the micrometer-sized Mo-based oxide particles by designing the dual conductive MoO2 /β-MoO3- x mosaics. The rational combination of the highly electronically conductive MoO2 with the highly ionically conductive and open-structured β-MoO3 achieves a promising volumetric capacity of 1742 mAh cm-3 , which is four times higher than the commercial graphite. Simultaneously, both stable cycling performance (87% retention after 500 cycles) and excellent rate capability (outperformed a majority of the MoO2 -based anodes reported in literature) are obtained in the lithium-ion batteries. For the sodium-ion batteries, the composite exhibits three times higher Na+ storage than pure MoO2 . Moreover, the decisive role of the bond energy on the electrochemical performance of TMOs is also identified. This study may open up new perspectives for choosing and designing the TMO anodes with a high volumetric capacity for the practical applications.
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Affiliation(s)
- Ruizhe Li
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wujie Dong
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Jun Pan
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Fuqiang Huang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
- State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
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12
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Zhou T, Qi Huang Y, Ali A, Kang Shen P. Ni-MoO2 nanoparticles heterojunction loaded on stereotaxically-constructed graphene for high-efficiency overall water splitting. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115555] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Oxygen Vacancy-Fe2O3@polyaniline Composites Directly Grown on Carbon Cloth as a High Stable Electrode for Symmetric Supercapacitors. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-02005-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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14
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Zhang M, Song Z, Liu H, Wang A, Shao S. MoO 2 coated few layers of MoS 2 and FeS 2 nanoflower decorated S-doped graphene interoverlapped network for high-energy asymmetric supercapacitor. J Colloid Interface Sci 2020; 584:418-428. [PMID: 33080502 DOI: 10.1016/j.jcis.2020.10.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 10/01/2020] [Accepted: 10/04/2020] [Indexed: 12/30/2022]
Abstract
Herein, the ultra-thin layer MoS2 coverd MoO2 nanocrystal arraying on sulfur-doped graphene framework (MoS2-MoO2/3DSG) is obtained via a simple hydrothermal procedure accompanied with high temperature annealing. Sodium thiosulfate and ethanethiol are used as sulfur sources to form three-dimensional sulfur doped graphene (3DSG) in the hydrothermal process. Importantly, MoO2 nano-particles are uniformly loaded on MoS2 nanosheets and 3DSG via in-situ collaborative technology. As a result, the stable conductive network take full use of the characteristics of high specific capacitance of MoO2 nanoparticles, convenient ion transport channel of two-dimensional MoS2 nanoflakes and efficient charge transfer and cross-linked 3DSG to improve the electrochemical activity and enhance the dynamics of electrons / ions, which is up to 1150.37 F g-1 specific capacitance and maintains 94.6% of the original capacitance after 10,000 cycles. Also, FeS2 nanoflowers in situ loading on 3DSG (FeS2/3DSG) with enhanced the overall performance of the device are fabricated. The asymmetric supercapacitor with the positive electrode of MoS2-MoO2/3DSG and the negative electrode of FeS2/3DSG can work efficiently and stably under the voltage of 1.7 V, and provide energy density of 87.38 Wh kg-1 at the power density of 683.94 Wkg-1, displaying an outstanding application prospect for energy storage.
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Affiliation(s)
- Mingmei Zhang
- School of Chemistry and Chemical Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China.
| | - Zixiang Song
- School of Chemistry and Chemical Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
| | - Hong Liu
- School of Chemistry and Chemical Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
| | - An Wang
- School of Chemistry and Chemical Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
| | - Shouyan Shao
- School of Chemistry and Chemical Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
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15
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Wazir N, Ding C, Wang X, Ye X, Lingling X, Lu T, Wei L, Zou B, Liu R. Comparative Studies on Two-Dimensional (2D) Rectangular and Hexagonal Molybdenum Dioxide Nanosheets with Different Thickness. NANOSCALE RESEARCH LETTERS 2020; 15:156. [PMID: 32740729 PMCID: PMC7395921 DOI: 10.1186/s11671-020-03386-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 07/20/2020] [Indexed: 06/11/2023]
Abstract
Molybdenum dioxide (MoO2) a kind of semi-metal material shows many unique properties, such as high melting point, good thermal stability, large surface area-to-volume ratio, high-density surface unsaturated atoms, and excellent conductivity. There is a strong connection between structural type and optoelectronic properties of 2D nanosheet. Herein, the rectangular and hexagonal types of thin and thick MoO2 2D nanosheets were successfully prepared from MoO3 powder using two-zone chemical vapor deposition (CVD) with changing the experimental parameters, and these fabricated nanosheets displayed different colors under bright-field microscope, possess margins and smooth surface. The thickness of the blue hexagonal and rectangular MoO2 nanosheets are ~ 25 nm and ~ 30 nm, respectively, while typical thickness of orange-colored nanosheet is around ~ 100 nm. Comparative analysis and investigations were carried out, and mix-crystal phases were indentified in thick MoO2 as main matrix through Raman spectroscopy. For the first time, the emission bands obtained in thick MoO2 nanosheets via a Cathodoluminescence (CL) system exhibiting special properties of semi-metallic and semi-conductors; however, no CL emission detected in case of thin nanosheets. The electrical properties of thin MoO2 nanosheets with different morphologies were compared, and both of them demonstrated varying metallic properties. The resistance of thin rectangular nanosheet was ~ 25 Ω at ± 0.05 V while 64 Ω at ± 0.05 V was reported for hexagonal nanosheet, and observed lesser resistance by rectangular nanosheet than hexagonal nanosheet.
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Affiliation(s)
- Nasrullah Wazir
- Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic Systems, School of Physics, Beijing Institute of Technology, Beijing, 100081, People's Republic of China
| | - Chunjie Ding
- Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic Systems, School of Physics, Beijing Institute of Technology, Beijing, 100081, People's Republic of China
| | - Xianshuang Wang
- Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic Systems, School of Physics, Beijing Institute of Technology, Beijing, 100081, People's Republic of China
| | - Xin Ye
- Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic Systems, School of Physics, Beijing Institute of Technology, Beijing, 100081, People's Republic of China
| | - Xie Lingling
- Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic Systems, School of Physics, Beijing Institute of Technology, Beijing, 100081, People's Republic of China
| | - Tianqi Lu
- Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic Systems, School of Physics, Beijing Institute of Technology, Beijing, 100081, People's Republic of China
| | - Li Wei
- Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic Systems, School of Physics, Beijing Institute of Technology, Beijing, 100081, People's Republic of China
| | - Bingsuo Zou
- Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic Systems, School of Physics, Beijing Institute of Technology, Beijing, 100081, People's Republic of China.
- Guangxi Key Lab of Processing for Nonferrous Metals and Featured Materials and Key lab of new Processing Technology for Nonferrous Metals and Materials, Ministry of Education; Nano and Energy Research Center, School of Physics, Guangxi University, Nanning, 530004, China.
| | - Ruibin Liu
- Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic Systems, School of Physics, Beijing Institute of Technology, Beijing, 100081, People's Republic of China.
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