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Lin J, Zhang B. Novel C 4P 2 monolayers: forming Z-scheme heterojunction and Janus structure for high-efficiency metal-free photocatalytic water splitting. Phys Chem Chem Phys 2024; 26:8982-8992. [PMID: 38439739 DOI: 10.1039/d3cp06143d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2024]
Abstract
Metal-free two-dimensional (2D) semiconductors have garnered significant attention in the realm of photocatalytic water splitting, primarily owing to their inherent clean, stable, and efficient photoresponsive properties. Motivated by it, we have proposed two types of stable C4P2 monolayers with indirect band gaps, mediocre carrier mobility and excellent optical absorption in visible-light and ultraviolet regions. Although the too-low work function of monolayer α-C4P2 and the too-high work function of monolayer β-C4P2 make them only suitable for single-side redox reaction in photocatalytic water splitting, the creation of an α-C4P2/β-C4P2 Z-scheme heterojunction, combined with the Janus monolayer γ-C4P2 that integrates features of both α and β structures, effectively addresses this limitation, fulfilling the prerequisites for comprehensive photocatalytic water splitting. Furthermore, the calculations indicate that the α-C4P2/β-C4P2 Z-scheme heterojunction and Janus monolayer γ-C4P2 not only demonstrate improved carrier mobility and optical absorption but also feature internal electric fields that effectively enhance driving energy and photo-induced charge separation. Notably, Janus monolayer γ-C4P2 achieves a high electron mobility of ∼105 cm2 V-1 s-1 and an impressive solar-to-hydrogen conversion efficiency of 25.62%.
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Affiliation(s)
- Jiahe Lin
- School of Science, Jimei University, Xiamen, 361021, China.
| | - Bofeng Zhang
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.
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2
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Chao Y, Han Y, Chen Z, Chu D, Xu Q, Wallace G, Wang C. Multiscale Structural Design of 2D Nanomaterials-based Flexible Electrodes for Wearable Energy Storage Applications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2305558. [PMID: 38115755 PMCID: PMC10916616 DOI: 10.1002/advs.202305558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 11/22/2023] [Indexed: 12/21/2023]
Abstract
2D nanomaterials play a critical role in realizing high-performance flexible electrodes for wearable energy storge devices, owing to their merits of large surface area, high conductivity and high strength. The electrode is a complex system and the performance is determined by multiple and interrelated factors including the intrinsic properties of materials and the structures at different scales from macroscale to atomic scale. Multiscale design strategies have been developed to engineer the structures to exploit full potential and mitigate drawbacks of 2D materials. Analyzing the design strategies and understanding the working mechanisms are essential to facilitate the integration and harvest the synergistic effects. This review summarizes the multiscale design strategies from macroscale down to micro/nano-scale structures and atomic-scale structures for developing 2D nanomaterials-based flexible electrodes. It starts with brief introduction of 2D nanomaterials, followed by analysis of structural design strategies at different scales focusing on the elucidation of structure-property relationship, and ends with the presentation of challenges and future prospects. This review highlights the importance of integrating multiscale design strategies. Finding from this review may deepen the understanding of electrode performance and provide valuable guidelines for designing 2D nanomaterials-based flexible electrodes.
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Affiliation(s)
- Yunfeng Chao
- Henan Institute of Advanced TechnologyZhengzhou UniversityZhengzhou450052China
- Intelligent Polymer Research InstituteARC Centre of Excellence for Electromaterials ScienceAIIM FacilityInnovation CampusUniversity of WollongongWollongongNSW2522Australia
| | - Yan Han
- Energy & Materials Engineering CentreCollege of Physics and Materials ScienceTianjin Normal UniversityTianjin300387China
| | - Zhiqi Chen
- Intelligent Polymer Research InstituteARC Centre of Excellence for Electromaterials ScienceAIIM FacilityInnovation CampusUniversity of WollongongWollongongNSW2522Australia
| | - Dewei Chu
- School of Materials Science and EngineeringThe University of New South WalesSydneyNSW2052Australia
| | - Qun Xu
- Henan Institute of Advanced TechnologyZhengzhou UniversityZhengzhou450052China
| | - Gordon Wallace
- Intelligent Polymer Research InstituteARC Centre of Excellence for Electromaterials ScienceAIIM FacilityInnovation CampusUniversity of WollongongWollongongNSW2522Australia
| | - Caiyun Wang
- Intelligent Polymer Research InstituteARC Centre of Excellence for Electromaterials ScienceAIIM FacilityInnovation CampusUniversity of WollongongWollongongNSW2522Australia
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Juo JY, Shin BG, Stiepany W, Memmler M, Kern K, Jung SJ. In-situ atomic level observation of the strain response of graphene lattice. Sci Rep 2023; 13:2451. [PMID: 36774393 PMCID: PMC9922254 DOI: 10.1038/s41598-023-29128-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 01/31/2023] [Indexed: 02/13/2023] Open
Abstract
Strain is inevitable in two-dimensional (2D) materials, regardless of whether the film is suspended or supported. However, the direct measurement of strain response at the atomic scale is challenging due to the difficulties of maintaining both flexibility and mechanical stability at low temperature under UHV conditions. In this work, we have implemented a compact nanoindentation system with a size of [Formula: see text] 160 mm[Formula: see text] [Formula: see text] 5.2 mm in a scanning tunneling microscope (STM) sample holder, which enables the reversible control of strain and gate electric field. A combination of gearbox and piezoelectric actuator allowed us to modulate the depth of the indentation continuously with nanometer precision. The 2D materials were transferred onto the polyimide film. Pd clamp was used to enhance the strain transfer from the polyimide from to the 2D layers. Using this unique technique, strain response of graphene lattice were observed at atomic precision. In the relaxed graphene, strain is induced mainly by local curvature. However, in the strained graphene with tented structure, the lattice parameters become more sensitive to the indentor height change and stretching strain is increased additionally. Moreover, the gate controllability is confirmed by measuring the dependence of the STM tip height on gate voltage.
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Affiliation(s)
- Jz-Yuan Juo
- grid.419552.e0000 0001 1015 6736Max-Planck-Institut für Festkörperforschung, Heisenbergstraße 1, 70569 Stuttgart, Germany
| | - Bong Gyu Shin
- grid.419552.e0000 0001 1015 6736Max-Planck-Institut für Festkörperforschung, Heisenbergstraße 1, 70569 Stuttgart, Germany ,grid.264381.a0000 0001 2181 989XSKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU), Suwon, 440-746 Republic of Korea
| | - Wolfgang Stiepany
- grid.419552.e0000 0001 1015 6736Max-Planck-Institut für Festkörperforschung, Heisenbergstraße 1, 70569 Stuttgart, Germany
| | - Marko Memmler
- grid.419552.e0000 0001 1015 6736Max-Planck-Institut für Festkörperforschung, Heisenbergstraße 1, 70569 Stuttgart, Germany
| | - Klaus Kern
- grid.419552.e0000 0001 1015 6736Max-Planck-Institut für Festkörperforschung, Heisenbergstraße 1, 70569 Stuttgart, Germany ,grid.5333.60000000121839049Institut de Physique, École Poly-technique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Soon Jung Jung
- Max-Planck-Institut für Festkörperforschung, Heisenbergstraße 1, 70569, Stuttgart, Germany.
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Nene A, Geng S, Zhou W, Yu XF, Luo H, Ramakrishna S. Black Phosphorous Aptamer-based Platform for Biomarker Detection. Curr Med Chem 2023; 30:935-952. [PMID: 35220933 DOI: 10.2174/0929867329666220225110302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 12/20/2021] [Accepted: 12/27/2021] [Indexed: 11/22/2022]
Abstract
Black phosphorus nanostructures (nano-BPs) mainly include BP nanosheets (BP NSs), BP quantum dots (BPQDs), and other nano-BPs-based particles at nanoscale. Firstly discovered in 2014, nano-BPs are one of the most popular nanomaterials. Different synthesis methods are discussed in short to understand the basic concepts and developments in synthesis. Exfoliated nano-BPs, i.e. nano-BPs possess high surface area, high photothermal conversion efficacy, excellent biocompatibility, high charge carrier mobility (~1000 cm-2V-1s-1), thermal conductivity of 86 Wm-1K-1; and these properties make it a highly potential candidate for fabrication of biosensing platform. These properties enable nano-BPs to be promising photothermal/drug delivery agents as well as in electrochemical data storage devices and sensing devices; and in super capacitors, photodetectors, photovoltaics and solar cells, LEDs, super-conductors, etc. Early diagnosis is very critical in the health sector scenarios. This review attempts to highlight the attempts made towards attaining stable BP, BP-aptamer conjugates for successful biosensing applications. BP-aptamer- based platforms are reviewed to highlight the significance of BP in detecting biological and physiological markers of cardiovascular diseases and cancer; to be useful in disease diagnosis and management.
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Affiliation(s)
- Ajinkya Nene
- Materials Interfaces Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, Guangdong, China
| | - Shengyong Geng
- Materials Interfaces Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, Guangdong, China
| | - Wenhua Zhou
- Materials Interfaces Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, Guangdong, China
| | - Xue-Feng Yu
- Materials Interfaces Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, Guangdong, China
| | - Hongrong Luo
- Materials Interfaces Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, Guangdong, China
| | - Seeram Ramakrishna
- Center for Nanofibers and Nanotechnology, National University of Singapore, 117576, Singapore
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Zhang B, Li A, Lin J, Liang W. Exploring the photocatalytic properties and carrier dynamics of 2D Janus XMMX' (X = S, Se; M = Ga, In; and X' = Te) materials. Phys Chem Chem Phys 2022; 24:23437-23446. [PMID: 36128932 DOI: 10.1039/d2cp03222h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Recently, two-dimensional (2D) Janus structures have been extensively explored because of their robust electron mobility and unique photocatalytic properties. In spite of the increasing interest, the origin of high photocatalytic activities and the behaviors of photoinduced carriers in this kind of materials have not been well understood. Herein, we present a step-by-step protocol based on the first-principles calculations combined with the ab initio non-adiabatic molecular dynamics (NAMD) simulations to unveil the origin of high photocatalytic activity of highly stable typical 2D Janus XMMX' structures (X = S, Se; M = Ga, In; and X' = Te). Their band structures, optical properties, exciton binding energies, carrier effective masses, solar-to-hydrogen efficiency, hot carrier relaxation and recombination times, etc. have been calculated. We find that the difference between X and X' atoms on the two surfaces of the XMMX' monolayer not only builds an out-of-plane electric field, which significantly affects the charge distributions on the valence band maxima (VBM) and the conduction band minima (CBM) and subsequently decreases the exciton binding energy, but also transforms the indirect band structures of XM into the direct ones with well suitable energy gaps for visible-light absorption as well as endows the XMMX' structures with unequal electron and hole mobility, rapid hot carrier relaxation and slow electron-hole recombination processes on a timescale of tens of nanoseconds. The current work suggests that Janus XMMX' monolayers are good photocatalytic materials for overall water splitting and provides a guide to regulate the materials' properties for efficient energy harvesting and optoelectronic applications.
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Affiliation(s)
- Bofeng Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian Province, P. R. China.
| | - Akang Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian Province, P. R. China.
| | - Jiahe Lin
- School of Science, Jimei University, Xiamen 361021, Fujian Province, P. R. China
| | - WanZhen Liang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian Province, P. R. China.
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Chalmpes N, Patila M, Kouloumpis A, Alatzoglou C, Spyrou K, Subrati M, Polydera AC, Bourlinos AB, Stamatis H, Gournis D. Graphene Oxide-Cytochrome c Multilayered Structures for Biocatalytic Applications: Decrypting the Role of Surfactant in Langmuir-Schaefer Layer Deposition. ACS APPLIED MATERIALS & INTERFACES 2022; 14:26204-26215. [PMID: 35608556 DOI: 10.1021/acsami.2c03944] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Graphene, a two-dimensional single-layer carbon allotrope, has attracted tremendous scientific interest due to its outstanding physicochemical properties. Its monatomic thickness, high specific surface area, and chemical stability render it an ideal building block for the development of well-ordered layered nanostructures with tailored properties. Herein, biohybrid graphene-based layer-by-layer structures are prepared by means of conventional and surfactant-assisted Langmuir-Schaefer layer deposition techniques, whereby cytochrome c molecules are accommodated within ordered layers of graphene oxide. The biocatalytic activity of the as-developed nanobio-architectures toward the enzymatic oxidation of 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt and decolorization of pinacyanol chloride is tested. The results show that the multilayer structures exhibit high biocatalytic activity and stability in the absence of surfactant molecules during the deposition of the monolayers.
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Affiliation(s)
- Nikolaos Chalmpes
- Department of Materials Science & Engineering, University of Ioannina, 45110 Ioannina, Greece
| | - Michaela Patila
- Laboratory of Biotechnology, Department of Biological Applications and Technology, University of Ioannina, 45110 Ioannina, Greece
| | - Antonios Kouloumpis
- Department of Materials Science & Engineering, University of Ioannina, 45110 Ioannina, Greece
| | - Christina Alatzoglou
- Laboratory of Biotechnology, Department of Biological Applications and Technology, University of Ioannina, 45110 Ioannina, Greece
| | - Konstantinos Spyrou
- Department of Materials Science & Engineering, University of Ioannina, 45110 Ioannina, Greece
| | - Mohammed Subrati
- Department of Materials Science & Engineering, University of Ioannina, 45110 Ioannina, Greece
| | - Angeliki C Polydera
- Laboratory of Biotechnology, Department of Biological Applications and Technology, University of Ioannina, 45110 Ioannina, Greece
| | | | - Haralambos Stamatis
- Laboratory of Biotechnology, Department of Biological Applications and Technology, University of Ioannina, 45110 Ioannina, Greece
| | - Dimitrios Gournis
- Department of Materials Science & Engineering, University of Ioannina, 45110 Ioannina, Greece
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7
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Ranjan P, Gaur S, Yadav H, Urgunde AB, Singh V, Patel A, Vishwakarma K, Kalirawana D, Gupta R, Kumar P. 2D materials: increscent quantum flatland with immense potential for applications. NANO CONVERGENCE 2022; 9:26. [PMID: 35666392 PMCID: PMC9170864 DOI: 10.1186/s40580-022-00317-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 05/22/2022] [Indexed: 05/08/2023]
Abstract
Quantum flatland i.e., the family of two dimensional (2D) quantum materials has become increscent and has already encompassed elemental atomic sheets (Xenes), 2D transition metal dichalcogenides (TMDCs), 2D metal nitrides/carbides/carbonitrides (MXenes), 2D metal oxides, 2D metal phosphides, 2D metal halides, 2D mixed oxides, etc. and still new members are being explored. Owing to the occurrence of various structural phases of each 2D material and each exhibiting a unique electronic structure; bestows distinct physical and chemical properties. In the early years, world record electronic mobility and fractional quantum Hall effect of graphene attracted attention. Thanks to excellent electronic mobility, and extreme sensitivity of their electronic structures towards the adjacent environment, 2D materials have been employed as various ultrafast precision sensors such as gas/fire/light/strain sensors and in trace-level molecular detectors and disease diagnosis. 2D materials, their doped versions, and their hetero layers and hybrids have been successfully employed in electronic/photonic/optoelectronic/spintronic and straintronic chips. In recent times, quantum behavior such as the existence of a superconducting phase in moiré hetero layers, the feasibility of hyperbolic photonic metamaterials, mechanical metamaterials with negative Poisson ratio, and potential usage in second/third harmonic generation and electromagnetic shields, etc. have raised the expectations further. High surface area, excellent young's moduli, and anchoring/coupling capability bolster hopes for their usage as nanofillers in polymers, glass, and soft metals. Even though lab-scale demonstrations have been showcased, large-scale applications such as solar cells, LEDs, flat panel displays, hybrid energy storage, catalysis (including water splitting and CO2 reduction), etc. will catch up. While new members of the flatland family will be invented, new methods of large-scale synthesis of defect-free crystals will be explored and novel applications will emerge, it is expected. Achieving a high level of in-plane doping in 2D materials without adding defects is a challenge to work on. Development of understanding of inter-layer coupling and its effects on electron injection/excited state electron transfer at the 2D-2D interfaces will lead to future generation heterolayer devices and sensors.
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Affiliation(s)
- Pranay Ranjan
- Department of Metallurgical and Materials Engineering, Indian Institute of Technology Jodhpur, Karwar, 342037, Rajasthan, India.
| | - Snehraj Gaur
- Advanced Materials and Devices Laboratory, Department of Chemistry, Indian Institute of Technology Jodhpur, Karwar, 342037, Rajasthan, India
| | - Himanshu Yadav
- Advanced Materials and Devices Laboratory, Department of Chemistry, Indian Institute of Technology Jodhpur, Karwar, 342037, Rajasthan, India
| | - Ajay B Urgunde
- Advanced Materials and Devices Laboratory, Department of Chemistry, Indian Institute of Technology Jodhpur, Karwar, 342037, Rajasthan, India
| | - Vikas Singh
- Advanced Materials and Devices Laboratory, Department of Chemistry, Indian Institute of Technology Jodhpur, Karwar, 342037, Rajasthan, India
| | - Avit Patel
- Advanced Materials and Devices Laboratory, Department of Chemistry, Indian Institute of Technology Jodhpur, Karwar, 342037, Rajasthan, India
| | - Kusum Vishwakarma
- Advanced Materials and Devices Laboratory, Department of Chemistry, Indian Institute of Technology Jodhpur, Karwar, 342037, Rajasthan, India
| | - Deepak Kalirawana
- Advanced Materials and Devices Laboratory, Department of Chemistry, Indian Institute of Technology Jodhpur, Karwar, 342037, Rajasthan, India
| | - Ritu Gupta
- Advanced Materials and Devices Laboratory, Department of Chemistry, Indian Institute of Technology Jodhpur, Karwar, 342037, Rajasthan, India.
| | - Prashant Kumar
- Global Innovative Centre for Advanced Nanomaterials (GICAN), College of Engineering, Science and Environment (CESE), School of Engineering, The University of Newcastle, University Drive, Callaghan, NSW, 2308, Australia.
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All-Optical Modulation Technology Based on 2D Layered Materials. MICROMACHINES 2022; 13:mi13010092. [PMID: 35056256 PMCID: PMC8780208 DOI: 10.3390/mi13010092] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 12/07/2021] [Accepted: 12/16/2021] [Indexed: 02/01/2023]
Abstract
In the advancement of photonics technologies, all-optical systems are highly demanded in ultrafast photonics, signal processing, optical sensing and optical communication systems. All-optical devices are the core elements to realize the next generation of photonics integration system and optical interconnection. Thus, the exploration of new optoelectronics materials that exhibit different optical properties is a highlighted research direction. The emerging two-dimensional (2D) materials such as graphene, black phosphorus (BP), transition metal dichalcogenides (TMDs) and MXene have proved great potential in the evolution of photonics technologies. The optical properties of 2D materials comprising the energy bandgap, third-order nonlinearity, nonlinear absorption and thermo-optics coefficient can be tailored for different optical applications. Over the past decade, the explorations of 2D materials in photonics applications have extended to all-optical modulators, all-optical switches, an all-optical wavelength converter, covering the visible, near-infrared and Terahertz wavelength range. Herein, we review different types of 2D materials, their fabrication processes and optical properties. In addition, we also summarize the recent advances of all-optical modulation based on 2D materials. Finally, we conclude on the perspectives on and challenges of the future development of the 2D material-based all-optical devices.
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Liu XY, Zeng H, Wang G, Cheng X, Yang S, Zhang H. Out-of-plane dipole-modulated photogenerated carrier separation and recombination at Janus-MoSSe/MoS2 van der Waals heterostructure interfaces: Ab initio time-domain study. Phys Chem Chem Phys 2022; 24:11743-11757. [DOI: 10.1039/d2cp00789d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Out-of-plane mirror symmetry-breaking provides a powerful tool for engineering the electronic property and the exciton behavior of two-dimensional materials. Here, combined the time-domain density functional theory with nonadiabatic dynamics, we...
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Yang ZZ, Zhang C, Zeng GM, Tan XF, Huang DL, Zhou JW, Fang QZ, Yang KH, Wang H, Wei J, Nie K. State-of-the-art progress in the rational design of layered double hydroxide based photocatalysts for photocatalytic and photoelectrochemical H2/O2 production. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214103] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Flexible Tellurium-Based Electrode for High-Performance Lithium-Tellurium Battery. NANOMATERIALS 2021; 11:nano11112903. [PMID: 34835667 PMCID: PMC8626021 DOI: 10.3390/nano11112903] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 10/22/2021] [Accepted: 10/28/2021] [Indexed: 11/17/2022]
Abstract
Low-dimensional nanomaterials have attracted considerable attention for next-generation flexible energy devices owing to their excellent electrochemical properties and superior flexibility. Herein, uniform Tellurium nanotubes (Te NTs) were prepared through a facile hydrothermal method, and then a flexible and freestanding electrode was fabricated with Te NTs as active materials and a small amount of nanofibrillated celluloses (NFCs) as a flexible matrix through a vacuum filtration method without adding extra conductive carbon or a binder. The resulting Te-based electrode exhibits a high volumetric capacity of 1512 mAh cm−3 at 200 mA g−1, and delivers admirable cyclic stability (capacity retention of 104% over 300 cycles) and excellent rate performance (833 mAh cm−3 at 1000 mA g−1), which benefits from the unique structure and intrinsically superior conductivity of Te NTs. After bending 50 times, the Te-based electrode delivers a desirable volumetric capacity of 1117 mAh cm−3, and remains 93% of initial capacity after 100 cycles. The results imply that the Te-based electrode exhibits excellent electrochemical properties and superior flexibility simultaneously, which can serve as a potential candidate for the flexible lithium batteries.
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Advanced and Emerging Negative Electrodes for Li-Ion Capacitors: Pragmatism vs. Performance. ENERGIES 2021. [DOI: 10.3390/en14113010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Li-ion capacitors (LICs) are designed to achieve high power and energy densities using a carbon-based material as a positive electrode coupled with a negative electrode often adopted from Li-ion batteries. However, such adoption cannot be direct and requires additional materials optimization. Furthermore, for the desired device’s performance, a proper design of the electrodes is necessary to balance the different charge storage mechanisms. The negative electrode with an intercalation or alloying active material must provide the high rate performance and long-term cycling ability necessary for LIC functionality—a primary challenge for the design of these energy-storage devices. In addition, the search for new active materials must also consider the need for environmentally friendly chemistry and the sustainable availability of key elements. With these factors in mind, this review evaluates advanced and emerging materials used as high-rate anodes in LICs from the perspective of their practical implementation.
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Maibam A, Das SK, Samal PP, Krishnamurty S. Enhanced photocatalytic properties of a chemically modified blue phosphorene. RSC Adv 2021; 11:13348-13358. [PMID: 35423836 PMCID: PMC8697524 DOI: 10.1039/d0ra10829d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Accepted: 03/27/2021] [Indexed: 12/11/2022] Open
Abstract
It is high time to placate the peak demand for an efficient, economic and green fuel in the form of H2 through photocatalytic water splitting. Several low dimensional materials have been explored for their photocatalytic properties on account of their surface to volume ratio. The present study illustrates the excellent photocatalytic potential of a two-dimensional material, viz. a chemically tempered blue-phosphorene sheet, with single atom thickness and high carrier mobility. Metal-free element, sulphur, is explored as a dopant in a 32-atom blue-phosphorene sheet. The dopant is inserted at three locations viz. central, edge and central edge positions with varying concentrations from 3.125% to 18.75% (corresponding to n = 1 to 6 sulphur atoms within a 32-atom blue-phosphorene sheet, P32-n S n ). The cohesive energy studies predict the higher stability of even number S doped sheets as compared to their odd counterparts. Photocatalytic activity is studied in terms of band gap and band alignment for different concentrations of the former. Studies reveal that edge doping demonstrates better water molecule activation independent of S atom concentration. The edge doped systems not only provide the chemical activity to activate water, but also show feasible HER overpotentials of 1.24-1.29 eV at neutral medium. Finally, this work opens up a driving lead of non-corrosive catalysts for water molecule splitting.
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Affiliation(s)
- Ashakiran Maibam
- Physical and Materials Chemistry Division, National Chemical Laboratory Pashan Road Pune 411008 India
- Academy of Scientific and Innovative Research, CSIR-Human Resource Development Centre (CSIR-HRDC) Campus Postal Staff College Area Gaziabad 201 002 Uttar Pradesh India
| | - Sawan Kumar Das
- Physical and Materials Chemistry Division, National Chemical Laboratory Pashan Road Pune 411008 India
| | - Pragnya Paramita Samal
- Physical and Materials Chemistry Division, National Chemical Laboratory Pashan Road Pune 411008 India
- Academy of Scientific and Innovative Research, CSIR-Human Resource Development Centre (CSIR-HRDC) Campus Postal Staff College Area Gaziabad 201 002 Uttar Pradesh India
| | - Sailaja Krishnamurty
- Physical and Materials Chemistry Division, National Chemical Laboratory Pashan Road Pune 411008 India
- Academy of Scientific and Innovative Research, CSIR-Human Resource Development Centre (CSIR-HRDC) Campus Postal Staff College Area Gaziabad 201 002 Uttar Pradesh India
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Dou W, Jia Y, Hao X, Meng Q, Wu J, Zhai S, Li T, Hu W, Song B, Zhou M. Time-Domain Ab Initio Insights into the Reduced Nonradiative Electron-Hole Recombination in ReSe 2/MoS 2 van der Waals Heterostructure. J Phys Chem Lett 2021; 12:2682-2690. [PMID: 33689347 DOI: 10.1021/acs.jpclett.1c00455] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Two-dimensional (2D) ReSe2 has attracted considerable interest due to its unique anisotropic mechanical, optical, and exitonic characteristics. Recent transient absorption experiments demonstrated a prolonged lifetime of photoexcited charge carriers by stacking ReSe2 with MoS2, but the underlying mechanism remains elusive. Here, by combining time-domain density functional theory with nonadiabatic molecular dynamics, we investigate the electronic properties and charge carrier dynamics of 2D ReSe2/MoS2 van der Waals (vdW) heterostructure. ReSe2/MoS2 has a type II band alignment that exhibits spatially distinguished conduction and valence band edges, and a built-in electric field is formed due to interface charge transfer. Remarkably, in spite of the decreased band gap and increased decoherence time, we demonstrate that the photocarrier lifetime of ReSe2/MoS2 is ∼5 times longer than that of ReSe2, which originates from the greatly reduced nonadiabatic coupling that suppresses electron-hole recombination, perfectly explaining the experimental results. These findings not only provide physical insights into experiments but also shed light on future design and fabrication of functional optoelectronic devices based on 2D vdW heterostructures.
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Affiliation(s)
- Wenzhen Dou
- School of Physics, Beihang University, Beijing 100191, China
| | - Yizhen Jia
- School of Physics, Beihang University, Beijing 100191, China
| | - Xiamin Hao
- School of Physics, Beihang University, Beijing 100191, China
| | - Qingling Meng
- School of Physics, Beihang University, Beijing 100191, China
| | - Jinge Wu
- School of Physics, Beihang University, Beijing 100191, China
| | - Shuwei Zhai
- School of Physics, Beihang University, Beijing 100191, China
| | - Tianzhao Li
- School of Physics, Beihang University, Beijing 100191, China
| | - Weijuan Hu
- School of Physics, Beihang University, Beijing 100191, China
| | - Biyu Song
- School of Physics, Beihang University, Beijing 100191, China
| | - Miao Zhou
- School of Physics, Beihang University, Beijing 100191, China
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15
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Zhou X, Yang J, Zhong M, Xia Q, Li B, Duan X, Wei Z. Intercalation of Two-dimensional Layered Materials. Chem Res Chin Univ 2020. [DOI: 10.1007/s40242-020-0185-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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16
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Rojaee R, Shahbazian-Yassar R. Two-Dimensional Materials to Address the Lithium Battery Challenges. ACS NANO 2020; 14:2628-2658. [PMID: 32083832 DOI: 10.1021/acsnano.9b08396] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Despite the ever-growing demand in safe and high power/energy density of Li+ ion and Li metal rechargeable batteries (LIBs), materials-related challenges are responsible for the majority of performance degradation in such batteries. These challenges include electrochemically induced phase transformations, repeated volume expansion and stress concentrations at interfaces, poor electrical and mechanical properties, low ionic conductivity, dendritic growth of Li, oxygen release and transition metal dissolution of cathodes, polysulfide shuttling in Li-sulfur batteries, and poor reversibility of lithium peroxide/superoxide products in Li-O2 batteries. Owing to compelling physicochemical and structural properties, in recent years two-dimensional (2D) materials have emerged as promising candidates to address the challenges in LIBs. This Review highlights the cutting-edge advances of LIBs by using 2D materials as cathodes, anodes, separators, catalysts, current collectors, and electrolytes. It is shown that 2D materials can protect the electrode materials from pulverization, improve the synergy of Li+ ion deposition, facilitate Li+ ion flux through electrolyte and electrode/electrolyte interfaces, enhance thermal stability, block the lithium polysulfide species, and facilitate the formation/decomposition of Li-O2 discharge products. This work facilitates the design of safe Li batteries with high energy and power density by using 2D materials.
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Affiliation(s)
- Ramin Rojaee
- Mechanical and Industrial Engineering Department, University of Illinois at Chicago, Chicago, Illinois 60607, United States
| | - Reza Shahbazian-Yassar
- Mechanical and Industrial Engineering Department, University of Illinois at Chicago, Chicago, Illinois 60607, United States
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17
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Yang Y, Fang WH, Benderskii A, Long R, Prezhdo OV. Strain Controls Charge Carrier Lifetimes in Monolayer WSe 2: Ab Initio Time Domain Analysis. J Phys Chem Lett 2019; 10:7732-7739. [PMID: 31755714 DOI: 10.1021/acs.jpclett.9b03105] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Mono- and few-layer transition metal dichalcogenides (TMDs) are among the most appealing candidates for electronic and optoelectronic devices. During synthesis, TMDs actively interact with substrates, which induce notable strain and influence significantly charge carriers in TMDs. By performing time-domain ab initio simulations on monolayer WSe2, we demonstrate that charge carrier lifetimes vary by a factor of 3 within a typical 1% strain range, the bandgap changes by 0.2 eV, and electron-phonon interactions vary by 60%. Fortuitously, the most common tensile strain extends the lifetimes. The changes arise because of modifications in interatomic interactions. Further, compared to the optimized structure, at ambient temperature the bandgap drops by 0.1 eV and fluctuates by 0.1 eV. WSe2 obeys linear response within 1% strain; however, further strain leads to nonlinear qualitative changes in WSe2 electronic properties. The conduction band is affected more strongly than the valence band. Charges couple to phonons within a 100-400 cm-1 frequency range, with the strongest coupling to in-plane and out-of-plane modes at 250 cm-1. The reported findings agree with the available experiments and should be generic to other 2D materials. The strain effects need to be considered during TMD synthesis and provide means to control and tune TMD properties for 2D device applications.
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Affiliation(s)
- Yating Yang
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education , Beijing Normal University , Beijing 100875 , P.R. China
| | - Wei-Hai Fang
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education , Beijing Normal University , Beijing 100875 , P.R. China
| | - Alex Benderskii
- Department of Chemistry , University of Southern California , Los Angeles , California 90089 , United States
| | - Run Long
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education , Beijing Normal University , Beijing 100875 , P.R. China
| | - Oleg V Prezhdo
- Department of Chemistry , University of Southern California , Los Angeles , California 90089 , United States
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18
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Awati A, Maimaiti H, Wang S, Xu B. Photo-derived fixation of dinitrogen into ammonia at ambient condition with water on ruthenium/coal-based carbon nanosheets. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 695:133865. [PMID: 31421334 DOI: 10.1016/j.scitotenv.2019.133865] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 07/21/2019] [Accepted: 08/09/2019] [Indexed: 06/10/2023]
Abstract
Photocatalytic synthesis of ammonia is a kind of compelling and challenging nitrogen fixation method. In this paper, we extract the small-sized graphite-like carbon layer in the coal by organic solvent extraction method using HNO3 pretreated coal as a precursor. Then the coal-based carbon nanosheets (CNs) containing with Ca2+, Ti4+, Fe2+, Al3+, Si4+, C, N, O and other metal/non-metal ions was obtained under the assistance of the ultrasonication. The composite catalyst Ru/CNs was prepared by in situ loading the ruthenium (Ru) nanoparticles reduced from RuCl3·3H2O onto the as prepared CNs. The structure was characterized and the photocatalytic nitrogen fixation into ammonia performance under ambient temperature and atmospheric pressure was studied. The results show that the composite catalyst Ru/CNs with uniform dispersion of Ru nanoparticles on CNs has excellent photocatalytic nitrogen fixation activity, and the NH3 yield reaches 221.3 μmol/L after the reaction for 4 h. At the same time, the as prepared catalyst had quite good stability, and the NH3 yield remained substantially unchanged in 5 cycle experiments.
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Affiliation(s)
- Abuduheiremu Awati
- Institute of Chemistry and Chemical Industry, Xinjiang University, Urumqi 830046, Xinjiang, China
| | - Halidan Maimaiti
- Institute of Chemistry and Chemical Industry, Xinjiang University, Urumqi 830046, Xinjiang, China.
| | - Shixin Wang
- Institute of Chemistry and Chemical Industry, Xinjiang University, Urumqi 830046, Xinjiang, China
| | - Bo Xu
- Institute of Chemistry and Chemical Industry, Xinjiang University, Urumqi 830046, Xinjiang, China
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19
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Wang P, Zhu K, Ye K, Gong Z, Liu R, Cheng K, Wang G, Yan J, Cao D. Three-dimensional biomass derived hard carbon with reconstructed surface as a free-standing anode for sodium-ion batteries. J Colloid Interface Sci 2019; 561:203-210. [PMID: 31816465 DOI: 10.1016/j.jcis.2019.11.091] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 11/20/2019] [Accepted: 11/21/2019] [Indexed: 01/01/2023]
Abstract
A three-dimensional free-standing hard carbon (FHC) electrode is synthesized by carbonizing the hemp haulm and employed as anode for sodium-ion batteries directly. A high current charging-discharging process is carried out to reconstruct surface structure of the FHC. Surface reconstructed FHC display a high capacity of 256 mAh/g and enhanced rate ability. With the formation of order surface structure, the plateau capacity increase and more sodium ions can insert into the FHC. This work demonstrates the importance of surface structure for sodium ion diffusion and storage and provide a new strategy to design high-performance anode materials.
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Affiliation(s)
- Pengfei Wang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Kai Zhu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China.
| | - Ke Ye
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China.
| | - Zhe Gong
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Ran Liu
- Department of Chemistry, School of Food Engineering, Harbin University, Harbin 150086, China
| | - Kui Cheng
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Guiling Wang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Jun Yan
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Dianxue Cao
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China.
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20
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Chalmpes N, Kouloumpis A, Zygouri P, Karouta N, Spyrou K, Stathi P, Tsoufis T, Georgakilas V, Gournis D, Rudolf P. Layer-by-Layer Assembly of Clay-Carbon Nanotube Hybrid Superstructures. ACS OMEGA 2019; 4:18100-18107. [PMID: 31720512 PMCID: PMC6843709 DOI: 10.1021/acsomega.9b01970] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Accepted: 09/27/2019] [Indexed: 05/27/2023]
Abstract
Much of the research effort concerning layered materials is directed toward their use as building blocks for the development of hybrid nanostructures with well-defined dimensions and behavior. Here, we report the fabrication through layer-by-layer deposition and intercalation chemistry of a new type of clay-based hybrid film, where functionalized carbon nanotubes are sandwiched between nanometer-sized smectite clay platelets. Single-walled carbon nanotubes (SWCNTs) were covalently functionalized in a single step with phenol groups, via 1,3-dipolar cycloaddition, to allow for stable dispersion in polar solvents. For the production of hybrid thin films, a bottom-up approach combining self-assembly with Langmuir-Schaefer deposition was applied. Smectite clay nanoplatelets act as a structure-directing interface and reaction media for grafting functionalized carbon nanotubes in a bidimensional array, allowing for a controllable layer-by-layer growth at a nanoscale. Hybrid clay/SWCNT multilayer films deposited on various substrates were characterized by X-ray reflectivity, Raman, and X-ray photoelectron spectroscopies, as well as atomic force microscopy.
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Affiliation(s)
- Nikolaos Chalmpes
- Department
of Materials Science and Engineering, University
of Ioannina, GR-45110 Ioannina, Greece
| | - Antonios Kouloumpis
- Department
of Materials Science and Engineering, University
of Ioannina, GR-45110 Ioannina, Greece
- Zernike
Institute for Advanced Materials, University
of Groningen, Nijenborgh 4, NL-9747AG Groningen, The Netherlands
| | - Panagiota Zygouri
- Department
of Materials Science and Engineering, University
of Ioannina, GR-45110 Ioannina, Greece
| | - Niki Karouta
- Department
of Materials Science and Engineering, University
of Ioannina, GR-45110 Ioannina, Greece
| | - Konstantinos Spyrou
- Department
of Materials Science and Engineering, University
of Ioannina, GR-45110 Ioannina, Greece
- Zernike
Institute for Advanced Materials, University
of Groningen, Nijenborgh 4, NL-9747AG Groningen, The Netherlands
| | - Panagiota Stathi
- Zernike
Institute for Advanced Materials, University
of Groningen, Nijenborgh 4, NL-9747AG Groningen, The Netherlands
| | - Theodoros Tsoufis
- Zernike
Institute for Advanced Materials, University
of Groningen, Nijenborgh 4, NL-9747AG Groningen, The Netherlands
| | | | - Dimitrios Gournis
- Department
of Materials Science and Engineering, University
of Ioannina, GR-45110 Ioannina, Greece
| | - Petra Rudolf
- Zernike
Institute for Advanced Materials, University
of Groningen, Nijenborgh 4, NL-9747AG Groningen, The Netherlands
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21
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Xu L, Ma L, Rujiralai T, Liu B, Zhang J, Zhang W. Nearly monodispersed MoS 2 hierarchical architectures as superior anodes for electrochemical lithium-storage. NANOTECHNOLOGY 2019; 30:415402. [PMID: 31261144 DOI: 10.1088/1361-6528/ab2e1b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In this paper, we developed a facile approach to synthesize well-dispersed 3D hierarchical porous MoS2 architectures with assistance of polyacrylate and demonstrated their applications in lithium ion batteries (LIBs). It was confirmed that the uniform flower-like MoS2 architectures were assembled by nanosheets comprising about ∼10 stacking layers. Polyacrylate was revealed to have a significant impact on controlling the formation of the uniform hierarchical flower-like architectures with desirable dispersity. It was believed that the polyacrylate could direct assembly of the MoS2 nanosheets into hierarchical structures and could well stabilize and disperse MoS2 architectures. Furthermore, a stable cycling capability (839 mAh g-1 at 0.1 A g-1 after 120 cycles) and superior rate ability of the MoS2 architectures were achieved as anodes for LIBs. This remarkably enhanced electrochemical property could be ascribed to their beneficial structural features and surface-dominated capacitive contribution.
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Affiliation(s)
- Limei Xu
- School of Chemistry and Chemical Engineering, Institute of Physical Chemistry, Key laboratory of Clean Energy Materials Chemistry of Guangdong Higher Education Institutes, Lingnan Normal University, Zhanjiang 524048, People's Republic of China
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22
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An C, Dong C, Shao LH, Deng Q. Monitoring the length change of Ni@C composite electrodes during charging/discharging processes. Electrochem commun 2019. [DOI: 10.1016/j.elecom.2019.05.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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23
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Kausar A. Graphene nanomesh and polymeric material at cutting edge. POLYM-PLAST TECH MAT 2019. [DOI: 10.1080/25740881.2018.1563111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Ayesha Kausar
- School of Natural Sciences, National University of Sciences and Technology (NUST), Islamabad, Pakistan
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24
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Parnell CM, Chhetri BP, Mitchell TB, Watanabe F, Kannarpady G, RanguMagar AB, Zhou H, Alghazali KM, Biris AS, Ghosh A. Simultaneous Electrochemical Deposition of Cobalt Complex and Poly(pyrrole) Thin Films for Supercapacitor Electrodes. Sci Rep 2019; 9:5650. [PMID: 30948739 PMCID: PMC6449390 DOI: 10.1038/s41598-019-41969-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 03/11/2019] [Indexed: 11/21/2022] Open
Abstract
Supercapacitors are beneficial as energy storage devices and can obtain high capacitance values greater than conventional capacitors and high power densities compared to batteries. However, in order to improve upon the overall cost, energy density, and charge-discharge rates, the electrode material of supercapacitors needs to be fine-tuned with an inexpensive, high conducting source. We prepared a Co(III) complex and polypyrrole (PPy) composite thin films (CoN4-PPy) that was electrochemically deposited on the surface of a glassy carbon working electrode. Cyclic voltammetry studies indicate the superior performance of CoN4-PPy in charge storage in acidic electrolyte compared to alkaline and organic solutions. The CoN4-PPy material generated the highest amount of specific capacitance (up to 721.9 F/g) followed by Co salt and PPy (Co-PPy) material and PPy alone. Cyclic performance studies showed the excellent electrochemical stability of the CoN4-PPy film in the acidic medium. Simply electrochemically depositing an inexpensive Co(III) complex with a high electrically conducting polymer of PPy delivered a superior electrode material for supercapacitor applications. Therefore, the results indicate that novel thin films derived from Co(III) metal complex and PPy can store a large amount of energy and maintain high stability over many cycles, revealing its excellent potential in supercapacitor devices.
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Affiliation(s)
- Charlette M Parnell
- Department of Chemistry, University of Arkansas at Little Rock, 2801 South University Avenue, Little Rock, AR, 72204, USA
| | - Bijay P Chhetri
- Department of Chemistry, University of Arkansas at Little Rock, 2801 South University Avenue, Little Rock, AR, 72204, USA
| | - Travis B Mitchell
- Department of Chemistry, University of Arkansas at Little Rock, 2801 South University Avenue, Little Rock, AR, 72204, USA
| | - Fumiya Watanabe
- Center for Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, 2801 South University Avenue, Little Rock, AR, 72204, USA
| | - Ganesh Kannarpady
- Center for Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, 2801 South University Avenue, Little Rock, AR, 72204, USA
| | - Ambar B RanguMagar
- Department of Chemistry, University of Arkansas at Little Rock, 2801 South University Avenue, Little Rock, AR, 72204, USA
| | - Huajun Zhou
- High-Density Electronics Center, University of Arkansas, Fayetteville, AR, 72701, USA
| | - Karrer M Alghazali
- Center for Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, 2801 South University Avenue, Little Rock, AR, 72204, USA
| | - Alexandru S Biris
- Center for Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, 2801 South University Avenue, Little Rock, AR, 72204, USA.
| | - Anindya Ghosh
- Department of Chemistry, University of Arkansas at Little Rock, 2801 South University Avenue, Little Rock, AR, 72204, USA.
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25
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Wu LN, Shen SY, Hong YH, Shen CH, Han FM, Fu F, Zhou XD, Huang L, Li JT, Sun SG. Novel MnO-Graphite Dual-Ion Battery and New Insights into Its Reaction Mechanism during Initial Cycle by Operando Techniques. ACS APPLIED MATERIALS & INTERFACES 2019; 11:12570-12577. [PMID: 30855934 DOI: 10.1021/acsami.9b01572] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Dual-ion battery complements lithium-ion batteries in terms of the use of inexpensive materials and ease to construct cells. To improve the safety and energy density of dual-ion battery, in this paper, a novel MnO-graphite dual-ion battery is reported for the first time. Microporous MnO materials are used as anode, which exhibits a low conversion potential and a low voltage hysteresis. The MnO-graphite dual-ion battery can deliver a capacity of 104 mAh g-1 at 0.5C and exhibits good rate performances and cycling stability (capacity retention >93% after 300 cycles). A mechanism is proposed to explain the irreversibility in capacity during the initial cycle by using operando X-ray diffraction in combination with online electrochemical mass spectrometry and electrochemical impedance spectroscopy.
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Affiliation(s)
| | | | | | | | | | | | - Xiao-Dong Zhou
- Institute for Materials Research and Innovation, Department of Chemical Engineering , University of Louisiana at Lafayette , Lafayette , Louisiana 70504 , United States
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26
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Mangelsen S, Srinivasan BR, Schürmann U, Kienle L, Näther C, Bensch W. Nanostructured tungsten sulfides: insights into precursor decomposition and the microstructure using X-ray scattering methods. Dalton Trans 2019; 48:1184-1201. [DOI: 10.1039/c8dt04205e] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The entire path from a thiotungstate precursor via its decomposition intermediate to nanosized WS2 with heavy stacking disorder is traced using various X-ray scattering methods.
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Affiliation(s)
| | | | | | - Lorenz Kienle
- Institute for Materials Science
- Kiel University
- 24143 Kiel
- Germany
| | - Christian Näther
- Institute of Inorganic Chemistry
- Kiel University
- D-24118 Kiel
- Germany
| | - Wolfgang Bensch
- Institute of Inorganic Chemistry
- Kiel University
- D-24118 Kiel
- Germany
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27
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Heard CJ, Čejka J, Opanasenko M, Nachtigall P, Centi G, Perathoner S. 2D Oxide Nanomaterials to Address the Energy Transition and Catalysis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1801712. [PMID: 30132995 DOI: 10.1002/adma.201801712] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 05/18/2018] [Indexed: 05/24/2023]
Abstract
2D oxide nanomaterials constitute a broad range of materials, with a wide array of current and potential applications, particularly in the fields of energy storage and catalysis for sustainable energy production. Despite the many similarities in structure, composition, and synthetic methods and uses, the current literature on layered oxides is diverse and disconnected. A number of reviews can be found in the literature, but they are mostly focused on one of the particular subclasses of 2D oxides. This review attempts to bridge the knowledge gap between individual layered oxide types by summarizing recent developments in all important 2D oxide systems including supported ultrathin oxide films, layered clays and double hydroxides, layered perovskites, and novel 2D-zeolite-based materials. Particular attention is paid to the underlying similarities and differences between the various materials, and the subsequent challenges faced by each research community. The potential of layered oxides toward future applications is critically evaluated, especially in the areas of electrocatalysis and photocatalysis, biomass conversion, and fine chemical synthesis. Attention is also paid to corresponding novel 3D materials that can be obtained via sophisticated engineering of 2D oxides.
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Affiliation(s)
- Christopher J Heard
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, 128 43, Prague 2, Czech Republic
| | - Jiří Čejka
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, 128 43, Prague 2, Czech Republic
- J. Heyrovský Institute of Physical Chemistry, Czech Academy of Science, Dolejškova 3, 182 23, Prague 8, Czech Republic
| | - Maksym Opanasenko
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, 128 43, Prague 2, Czech Republic
| | - Petr Nachtigall
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, 128 43, Prague 2, Czech Republic
| | - Gabriele Centi
- Dept.s MIFT and ChiBioFarAm-Industrial Chemistry, University of Messina, ERIC aisbl and CASPE/INSTM, V.le F. Stagno S'Alcontres 31, 98166, Messina, Italy
| | - Siglinda Perathoner
- Dept.s MIFT and ChiBioFarAm-Industrial Chemistry, University of Messina, ERIC aisbl and CASPE/INSTM, V.le F. Stagno S'Alcontres 31, 98166, Messina, Italy
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28
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Li Y, Li Q, Zhao S, Chen C, Zhou J, Tao K, Han L. Conductive 2D Metal-Organic Frameworks Decorated on Layered Double Hydroxides Nanoflower Surface for High-Performance Supercapacitor. ChemistrySelect 2018. [DOI: 10.1002/slct.201803150] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Yanli Li
- School of Materials Science & Chemical Engineering; Ningbo University, Ningbo; Zhejiang 315211 China
| | - Qin Li
- School of Materials Science & Chemical Engineering; Ningbo University, Ningbo; Zhejiang 315211 China
| | - Shihang Zhao
- School of Materials Science & Chemical Engineering; Ningbo University, Ningbo; Zhejiang 315211 China
| | - Chen Chen
- School of Materials Science & Chemical Engineering; Ningbo University, Ningbo; Zhejiang 315211 China
| | - Jiaojiao Zhou
- School of Materials Science & Chemical Engineering; Ningbo University, Ningbo; Zhejiang 315211 China
| | - Kai Tao
- School of Materials Science & Chemical Engineering; Ningbo University, Ningbo; Zhejiang 315211 China
| | - Lei Han
- School of Materials Science & Chemical Engineering; Ningbo University, Ningbo; Zhejiang 315211 China
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29
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Jose NA, Zeng HC, Lapkin AA. Hydrodynamic assembly of two-dimensional layered double hydroxide nanostructures. Nat Commun 2018; 9:4913. [PMID: 30464298 PMCID: PMC6249219 DOI: 10.1038/s41467-018-07395-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 10/30/2018] [Indexed: 12/12/2022] Open
Abstract
Formation mechanisms of two-dimensional nanostructures in wet syntheses are poorly understood. Even more enigmatic is the influence of hydrodynamic forces. Here we use liquid flow cell transmission electron microscopy to show that layered double hydroxide, as a model material, may form via the oriented attachment of hexagonal nanoparticles; under hydrodynamic shear, oriented attachment is accelerated. To hydrodynamically manipulate the kinetics of particle growth and oriented attachment, we develop a microreactor with high and tunable shear rates, enabling control over particle size, crystallinity and aspect ratio. This work offers new insights in the formation of two-dimensional materials, provides a scalable yet precise synthesis method, and proposes new avenues for the rational engineering and scalable production of highly anisotropic nanostructures. While liquid-phase synthesis of 2D materials presents opportunities for large-scale production, achieving precise control over product quality, size and morphology remains challenging. Here, the authors show that hydrodynamic manipulation of nanoparticle assembly enables control over crystallinity, size and aspect ratio.
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Affiliation(s)
- Nicholas A Jose
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, Philippa Fawcett Drive CB3 0AS, UK.,Cambridge Centre for Advanced Research and Education in Singapore Ltd., 1 Create Way, CREATE Tower #05-05, Singapore, 138602, Singapore
| | - Hua Chun Zeng
- Cambridge Centre for Advanced Research and Education in Singapore Ltd., 1 Create Way, CREATE Tower #05-05, Singapore, 138602, Singapore.,Department of Chemical and Biomolecular Engineering, Faculty of Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore, 119260, Singapore
| | - Alexei A Lapkin
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, Philippa Fawcett Drive CB3 0AS, UK. .,Cambridge Centre for Advanced Research and Education in Singapore Ltd., 1 Create Way, CREATE Tower #05-05, Singapore, 138602, Singapore.
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30
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Wang J, Gao R, Zheng L, Chen Z, Wu Z, Sun L, Hu Z, Liu X. CoO/CoP Heterostructured Nanosheets with an O–P Interpenetrated Interface as a Bifunctional Electrocatalyst for Na–O2 Battery. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01023] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Junkai Wang
- College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Rui Gao
- College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Lirong Zheng
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Zhongjun Chen
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Zhonghua Wu
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Limei Sun
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, P. R. China
| | - Zhongbo Hu
- College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Xiangfeng Liu
- College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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31
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Sahoo MK, Rao GR. Fabrication of NiCo2S4 nanoball embedded nitrogen doped mesoporous carbon on nickel foam as an advanced charge storage material. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.02.093] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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32
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Du W, Wu M, Zhang M, Xu G, Gao T, Qian L, Yu X, Chi F, Li C, Shi G. Organic dispersions of graphene oxide with arbitrary concentrations and improved chemical stability. Chem Commun (Camb) 2018; 53:11005-11007. [PMID: 28766592 DOI: 10.1039/c7cc04584k] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
We report a simple method that can dissolve graphene oxide (GO) in pure organic solvents (e.g., propylene carbonate) as readily as in pure water to form stable dispersions of single layer GO sheets. The GO sheets dispersed in propylene carbonate exhibited much better structural stability than those in water.
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Affiliation(s)
- Wencheng Du
- Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China.
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33
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Molybdenum diselenide nanosheets wraping carbon aerogel nanospheres as an advanced material for supercapacitor and electrochemical sensing. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.10.105] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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34
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Huang YT, Dodda A, Schulman DS, Sebastian A, Zhang F, Buzzell D, Terrones M, Feng SP, Das S. Anomalous Corrosion of Bulk Transition Metal Diselenides Leading to Stable Monolayers. ACS APPLIED MATERIALS & INTERFACES 2017; 9:39059-39068. [PMID: 29028313 DOI: 10.1021/acsami.7b13107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this paper we provide insight into an anomalous corrosion process, referred to as electroablation (EA), which converts multilayer flakes of transition metal diselenides like MoSe2 into their corresponding monolayers when micromechanically exfoliated on a conductive electrode and subsequently subjected to a high anodic potential inside a conventional electrochemical cell. Photoluminescence intensity maps and scanning transmission electron microscopy (STEM) images confirmed the single crystalline nature and 2H-hexagonal lattice structure of the remnant monolayer MoSe2 flakes, indicating the superior corrosion stability of the monolayers compared to that of the bulk counterpart. It is noted that the EA technique is a low-cost alternative for high-yield synthesis of single crystalline monolayer MoSe2 at room temperature. We also found that the dynamics of such an electro-oxidation-mediated and self-limiting corrosion process differs significantly for MoSe2 and WSe2. While we were able to engineer the corrosion conditions for the EA process to obtain monolayers of MoSe2, our attempts to obtain monolayers of WSe2 were largely unsuccessful. Finally, we constructed a phenomenological physical chemistry framework to explain such anomalous corrosion processes in transition metal diselenides.
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Affiliation(s)
- Yu-Ting Huang
- Department of Engineering Science and Mechanics, Pennsylvania State University , University Park, Pennsylvania 16802, United States
- Department of Mechanical Engineering, University of Hong Kong , Pokfulam, Hong Kong
| | - Akhil Dodda
- Department of Mechanical Engineering, Amrita Vishwa Vidyapeetham , Amritapuri, Clappana P.O., Kollam, 690525 Kerala, India
| | - Daniel S Schulman
- Department of Materials Science and Engineering, Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | - Amritanand Sebastian
- Department of Engineering Science and Mechanics, Pennsylvania State University , University Park, Pennsylvania 16802, United States
- Department of Electronics and Communication Engineering, Amrita Vishwa Vidyapeetham , Amritapuri, Clappana P.O., Kollam, 690525 Kerala, India
| | - Fu Zhang
- Department of Materials Science and Engineering, Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | - Drew Buzzell
- Department of Engineering Science and Mechanics, Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | - Mauricio Terrones
- Department of Materials Science and Engineering, Pennsylvania State University , University Park, Pennsylvania 16802, United States
- Department of Physics, Pennsylvania State University , University Park, Pennsylvania 16802, United States
- Department of Chemistry, Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | - Shien-Ping Feng
- Department of Mechanical Engineering, University of Hong Kong , Pokfulam, Hong Kong
- The University of Hong Kong-Zhejiang Institute of Research and Innovation (HKU-ZIRI) , Hangzhou, Zhejiang 311300, China
| | - Saptarshi Das
- Department of Engineering Science and Mechanics, Pennsylvania State University , University Park, Pennsylvania 16802, United States
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35
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Sahoo R, Acharyya P, Singh NK, Pal A, Negishi Y, Pal T. Advance Aqueous Asymmetric Supercapacitor Based on Large 2D NiCo 2O 4 Nanostructures and the rGO@Fe 3O 4 Composite. ACS OMEGA 2017; 2:6576-6585. [PMID: 31457255 PMCID: PMC6644927 DOI: 10.1021/acsomega.7b01091] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 09/22/2017] [Indexed: 05/31/2023]
Abstract
NiCo2O4 nanostructure is a widely studied pseudocapacitor material because of its high specific capacitance value. Most of the time, the thickness of the nanostructure inhibits the electrode material from whole-body participation and causes sluggish charge transportation. These phenomena directly interfere with the electrochemical performance of the electrode, such as specific capacitance value, stability, energy density, and so forth. Here, two different thin two-dimensional morphologies (nanosheet and nanoplate) of the NiCo2O4 nanocomposite with a large lateral size are reported using ammonia as a hydrolyzing agent. The large size and flat surface of the as-synthesized materials offer enormous active sites during the electrochemical reaction, and the thin wall makes the ion penetration and transportation very effective and facile. Therefore, the NiCo2O4 nanosheet and nanoplate structures exhibited high specific capacitance values of 1540 and 1333 F/g, respectively, with excellent rate and good cycling stability. Here also, two different advance aqueous asymmetric supercapacitors have been reported utilizing two NiCo2O4 nanostructure materials as positive electrodes and the rGO@Fe3O4 composite as a negative electrode, which exhibited excellent rate and high specific energy without sacrificing the specific power. We also studied the electrochemical activity of the rGO@Fe3O4 composite at different compositions.
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Affiliation(s)
- Ramkrishna Sahoo
- Department
of Chemistry and Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Paribesh Acharyya
- Department
of Chemistry and Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Navin Kumar Singh
- Department
of Chemistry and Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Anjali Pal
- Department
of Chemistry and Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Yuichi Negishi
- Department
of Applied Chemistry, Tokyo University of
Science, Tokyo 1628601, Japan
| | - Tarasankar Pal
- Department
of Chemistry and Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
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36
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Wang J, Gao R, Zhou D, Chen Z, Wu Z, Schumacher G, Hu Z, Liu X. Boosting the Electrocatalytic Activity of Co3O4 Nanosheets for a Li-O2 Battery through Modulating Inner Oxygen Vacancy and Exterior Co3+/Co2+ Ratio. ACS Catal 2017. [DOI: 10.1021/acscatal.7b02313] [Citation(s) in RCA: 193] [Impact Index Per Article: 27.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Junkai Wang
- College
of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Rui Gao
- College
of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Dong Zhou
- Helmholtz-Center Berlin for Materials and Energy, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
| | - Zhongjun Chen
- Beijing
Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Zhonghua Wu
- Beijing
Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Gerhard Schumacher
- Helmholtz-Center Berlin for Materials and Energy, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
| | - Zhongbo Hu
- College
of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Xiangfeng Liu
- College
of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
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37
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Liu S, Sankar KV, Kundu A, Ma M, Kwon JY, Jun SC. Honeycomb-Like Interconnected Network of Nickel Phosphide Heteronanoparticles with Superior Electrochemical Performance for Supercapacitors. ACS APPLIED MATERIALS & INTERFACES 2017; 9:21829-21838. [PMID: 28594159 DOI: 10.1021/acsami.7b05384] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Transition-metal-based heteronanoparticles are attracting extensive attention in electrode material design for supercapacitors owing to their large surface-to-volume ratios and inherent synergies of individual components; however, they still suffer from limited interior capacity and cycling stability due to simple geometric configurations, low electrochemical activity of the surface, and poor structural integrity. Developing an elaborate architecture that endows a larger surface area, high conductivity, and mechanically robust structure is a pressing need to tackle the existing challenges of electrode materials. This work presents a supercapacitor electrode consisting of honeycomb-like biphasic Ni5P4-Ni2P (NixPy) nanosheets, which are interleaved by large quantities of nanoparticles. The optimized NixPy delivers an ultrahigh specific capacity of 1272 C g-1 at a current density of 2 A g-1, high rate capability, and stability. An asymmetric supercapacitor employing as-synthesized NixPy as the positive electrode and activated carbon as the negative electrode exhibits significantly high power and energy densities (67.2 W h kg-1 at 0.75 kW kg-1; 20.4 W h kg-1 at 15 kW kg-1). These results demonstrate that the novel nanostructured NixPy can be potentially applied in high-performance supercapacitors.
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Affiliation(s)
- Shude Liu
- School of Mechanical Engineering, Yonsei University , Seoul 120-749, South Korea
| | | | - Aniruddha Kundu
- School of Mechanical Engineering, Yonsei University , Seoul 120-749, South Korea
| | - Ming Ma
- Advanced Institute of Nanotechnology, Sungkyunkwan University , Suwon 440-746, South Korea
| | - Jang-Yeon Kwon
- School of Integrated Technology and Yonsei Institute of Convergence Technology, Yonsei University , Yeonsu-gu, Incheon 406-840, South Korea
| | - Seong Chan Jun
- School of Mechanical Engineering, Yonsei University , Seoul 120-749, South Korea
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38
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Pournaghavi N, Esmaeilzadeh M, Abrishamifar A, Ahmadi S. Extrinsic Rashba spin-orbit coupling effect on silicene spin polarized field effect transistors. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2017; 29:145501. [PMID: 28106534 DOI: 10.1088/1361-648x/aa5b06] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Regarding the spin field effect transistor (spin FET) challenges such as mismatch effect in spin injection and insufficient spin life time, we propose a silicene based device which can be a promising candidate to overcome some of those problems. Using non-equilibrium Green's function method, we investigate the spin-dependent conductance in a zigzag silicene nanoribbon connected to two magnetized leads which are supposed to be either in parallel or anti-parallel configurations. For both configurations, a controllable spin current can be obtained when the Rashba effect is present; thus, we can have a spin filter device. In addition, for anti-parallel configuration, in the absence of Rashba effect, there is an intrinsic energy gap in the system (OFF-state); while, in the presence of Rashba effect, electrons with flipped spin can pass through the channel and make the ON-state. The current voltage (I-V) characteristics which can be tuned by changing the gate voltage or Rashba strength, are studied. More importantly, reducing the mismatch conductivity as well as energy consumption make the silicene based spin FET more efficient relative to the spin FET based on two-dimensional electron gas proposed by Datta and Das. Also, we show that, at the same conditions, the current and [Formula: see text] ratio of silicene based spin FET are significantly greater than that of the graphene based one.
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Affiliation(s)
- Nezhat Pournaghavi
- Department of Physics, Iran University of Science and Technology, Narmak, Tehran 16844, Iran
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39
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Xu L, Ma L, Rujiralai T, Zhou X, Wu S, Liu M. Hierarchical MoS2 microspheres prepared through a zinc ion-assisted hydrothermal route as an electrochemical supercapacitor electrode. RSC Adv 2017. [DOI: 10.1039/c7ra05055k] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Hierarchical molybdenum disulfide microspheres have been successfully prepared through a zinc ion-assisted hydrothermal route followed by an acid corrosion strategy.
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Affiliation(s)
- Limei Xu
- School of Chemistry and Chemical Engineering
- Institute of Physical Chemistry
- Development Center for New Materials Engineering & Technology in Universities of Guangdong
- Lingnan Normal University
- Zhanjiang 524048
| | - Lin Ma
- School of Chemistry and Chemical Engineering
- Institute of Physical Chemistry
- Development Center for New Materials Engineering & Technology in Universities of Guangdong
- Lingnan Normal University
- Zhanjiang 524048
| | - Thitima Rujiralai
- Department of Chemistry
- Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Prince of Songkla University
- Songkhla
| | - Xiaoping Zhou
- School of Chemistry and Chemical Engineering
- Institute of Physical Chemistry
- Development Center for New Materials Engineering & Technology in Universities of Guangdong
- Lingnan Normal University
- Zhanjiang 524048
| | - Shanshan Wu
- School of Chemistry and Chemical Engineering
- Institute of Physical Chemistry
- Development Center for New Materials Engineering & Technology in Universities of Guangdong
- Lingnan Normal University
- Zhanjiang 524048
| | - Minling Liu
- School of Chemistry and Chemical Engineering
- Institute of Physical Chemistry
- Development Center for New Materials Engineering & Technology in Universities of Guangdong
- Lingnan Normal University
- Zhanjiang 524048
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40
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Liu PF, Zhou JJ, Li GC, Wu MK, Tao K, Yi FY, Zhao WN, Han L. A hierarchical NiO/NiMn-layered double hydroxide nanosheet array on Ni foam for high performance supercapacitors. Dalton Trans 2017; 46:7388-7391. [DOI: 10.1039/c7dt00932a] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A hierarchical NiO/NiMn-LDH nanosheet array on Ni foam was preparedviaa facile two-step approach and exhibited a high specific capacitance (937 F g−1at 0.5 A g−1) and good cycling stability (91% retention after 1000 cycles at 5 A g−1).
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Affiliation(s)
- Peng-Fei Liu
- State Key Laboratory Base of Novel Functional Materials and Preparation Science
- School of Materials Science & Chemical Engineering
- Ningbo University
- Ningbo
- China
| | - Jiao-Jiao Zhou
- State Key Laboratory Base of Novel Functional Materials and Preparation Science
- School of Materials Science & Chemical Engineering
- Ningbo University
- Ningbo
- China
| | - Guo-Chang Li
- State Key Laboratory Base of Novel Functional Materials and Preparation Science
- School of Materials Science & Chemical Engineering
- Ningbo University
- Ningbo
- China
| | - Meng-Ke Wu
- State Key Laboratory Base of Novel Functional Materials and Preparation Science
- School of Materials Science & Chemical Engineering
- Ningbo University
- Ningbo
- China
| | - Kai Tao
- State Key Laboratory Base of Novel Functional Materials and Preparation Science
- School of Materials Science & Chemical Engineering
- Ningbo University
- Ningbo
- China
| | - Fei-Yan Yi
- State Key Laboratory Base of Novel Functional Materials and Preparation Science
- School of Materials Science & Chemical Engineering
- Ningbo University
- Ningbo
- China
| | - Wen-Na Zhao
- Key Laboratory for Molecular Design and Nutrition Engineering of Ningbo
- Ningbo Institute of Technology
- Zhejiang University
- Ningbo
- China
| | - Lei Han
- State Key Laboratory Base of Novel Functional Materials and Preparation Science
- School of Materials Science & Chemical Engineering
- Ningbo University
- Ningbo
- China
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41
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Kamari Kaverlavani S, Moosavifard SE, Bakouei A. Self-templated synthesis of uniform nanoporous CuCo2O4 double-shelled hollow microspheres for high-performance asymmetric supercapacitors. Chem Commun (Camb) 2017; 53:1052-1055. [DOI: 10.1039/c6cc08888k] [Citation(s) in RCA: 95] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Multilevel interior nanoporous CuCo2O4 microspheres have been for the first time developed using a facile self-templated method.
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Affiliation(s)
| | | | - Ali Bakouei
- Department of Physics
- Tarbiat Modares University
- Tehran
- Iran
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42
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Liao JZ, Chang JF, Meng L, Zhang HL, Wang SS, Lu CZ. Lone pair-π interaction-induced generation of photochromic coordination networks with photoswitchable conductance. Chem Commun (Camb) 2017; 53:9701-9704. [DOI: 10.1039/c7cc05150f] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lone pair-π interaction-induced variation of the degree of charge-transfer was successfully used for switching the conductance of a photochromic coordination network.
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Affiliation(s)
- Jian-Zhen Liao
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures
- and Fujian Provincial Key Laboratory of Nanomaterials
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
| | - Jian-Fei Chang
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures
- and Fujian Provincial Key Laboratory of Nanomaterials
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
| | - Lingyi Meng
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures
- and Fujian Provincial Key Laboratory of Nanomaterials
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
| | - Hai-Long Zhang
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures
- and Fujian Provincial Key Laboratory of Nanomaterials
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
| | - Sa-Sa Wang
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures
- and Fujian Provincial Key Laboratory of Nanomaterials
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
| | - Can-Zhong Lu
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures
- and Fujian Provincial Key Laboratory of Nanomaterials
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
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