1
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Pandey H, Chithaiah P, Vishwanathan S, Ramakrishna Matte HSS, Rao CNR. Topochemically synthesized Nb 3VS 6 as a stable anode for sodium-ion batteries. Chem Commun (Camb) 2024. [PMID: 39177092 DOI: 10.1039/d4cc02630f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2024]
Abstract
Ternary metal sulfides having layered morphology are considered as potential active materials for various applications. Herein, Nb3VS6 is synthesized topochemically for the first time using a Nb-V-HDA complex having a lamellar structure by employing H2S gas as the sulfidation agent. Nb3VS6, as an anode for SIBs, exhibited a specific capacity of 101.15 mA h g-1 at 0.5 A g-1, along with excellent cycling stability with 100% capacity retention after 2500 cycles.
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Affiliation(s)
- Harshit Pandey
- Energy Materials Laboratory, Centre for Nano and Soft Matter Sciences, Bangalore 562162, India
| | - Pallellappa Chithaiah
- New Chemistry Unit, International Centre for Materials Science and School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur PO, Bangalore-560064, India.
| | - Savithri Vishwanathan
- Energy Materials Laboratory, Centre for Nano and Soft Matter Sciences, Bangalore 562162, India
| | - H S S Ramakrishna Matte
- Energy Materials Laboratory, Centre for Nano and Soft Matter Sciences, Bangalore 562162, India
| | - C N R Rao
- New Chemistry Unit, International Centre for Materials Science and School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur PO, Bangalore-560064, India.
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2
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Yadgarov L, Tenne R. Nanotubes from Transition Metal Dichalcogenides: Recent Progress in the Synthesis, Characterization and Electrooptical Properties. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2400503. [PMID: 38953349 DOI: 10.1002/smll.202400503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 06/02/2024] [Indexed: 07/04/2024]
Abstract
Inorganic layered compounds (2D-materials), particularly transition metal dichalcogenide (TMDC), are the focus of intensive research in recent years. Shortly after the discovery of carbon nanotubes (CNTs) in 1991, it was hypothesized that nanostructures of 2D-materials can also fold and seam forming, thereby nanotubes (NTs). Indeed, nanotubes (and fullerene-like nanoparticles) of WS2 and subsequently from MoS2 were reported shortly after CNT. However, TMDC nanotubes received much less attention than CNT until recently, likely because they cannot be easily produced as single wall nanotubes with well-defined chiral angles. Nonetheless, NTs from inorganic layered compounds have become a fertile field of research in recent years. Much progress has been achieved in the high-temperature synthesis of TMDC nanotubes of different kinds, as well as their characterization and the study of their properties and potential applications. Their multiwall structure is found to be a blessing rather than a curse, leading to intriguing observations. This concise minireview is dedicated to the recent progress in the research of TMDC nanotubes. After reviewing the progress in their synthesis and structural characterization, their contributions to the research fields of energy conversion and storage, polymer nanocomposites, andunique optoelectronic devices are being reviewed. These studies suggest numerous potential applications for TMDC nanotubes in various technologies, which are briefly discussed.
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Affiliation(s)
- Lena Yadgarov
- The Department of Chemical Engineering, Ariel University, Ramat HaGolan St 65, Ariel, 4077625, Israel
| | - Reshef Tenne
- Department of Molecular Chemistry and Materials Science, Weizmann Institute, Hertzl Street 234, Rehovot, 7610010, Israel
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3
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Jang H, Poineau F. Tailoring Triuranium Octoxide into Multidimensional Uranyl Fluoride Micromaterials. ACS OMEGA 2024; 9:26380-26387. [PMID: 38911810 PMCID: PMC11191112 DOI: 10.1021/acsomega.4c02554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/26/2024] [Accepted: 05/29/2024] [Indexed: 06/25/2024]
Abstract
Uranium microstructured materials with controlled size and shape are relevant to the nuclear industry and have found applications as targets for medical isotope production, fuels for nuclear reactors, standards for nuclear forensics, and energy sources for space exploration. Until now, most studies at the microscale have focused on uranium microspheres (oxides, nitrides, carbides, and fluorides), while micromaterials of uranium halides, carbides, and pnictides with other morphologies are largely unknown. A promising method to shape the morphology of uranium micromaterials is the replacement of O by F atoms in oxide materials using a solid-gas reaction. Here, with the aim to elaborate unexplored uranium fluoride micromaterials, the fluorination of uranium oxide (U3O8 and UO2) microspheres (ms), microrods (mr), and microplates (mp) in an autoclave at 250 °C with HF(g) (produced from the thermal decomposition of silver bifluoride (SBF)) and with ammonium bifluoride (ABF) was evaluated. We show that the reactions between U3O8 mr and U3O8 mp and SBF provided the most efficient way to elaborate mr and mp UO2F2 micromaterials in a high yield (∼90%). The resulting UO2F2 mr (length: 3-20 μm) and UO2F2 mp (width: 1-7.5 μm) exhibited a well-defined geometry that was identical to that of the U3O8 precursors. Agglomerated (NH4)3UO2F5 and UO2F2 ms (2-3.5 μm) were prepared from the reaction of U3O8 ms with ABF. It is noted that the reaction of UO2 ms with SBF and ABF did not provide any uranium fluoride micromaterials. The successful preparation of uranium fluoride microstructures (ms, mr, and mp) developed here opens the way to novel actinide fluoride micromaterials.
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Affiliation(s)
- Harry Jang
- Department of Chemistry and
Biochemistry, University of Nevada Las Vegas, 4505 S. Maryland Parkway, Las Vegas, Nevada 89154, United States
| | - Frederic Poineau
- Department of Chemistry and
Biochemistry, University of Nevada Las Vegas, 4505 S. Maryland Parkway, Las Vegas, Nevada 89154, United States
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4
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Kundrát V, Novák L, Bukvišová K, Zálešák J, Kolíbalová E, Rosentsveig R, Sreedhara M, Shalom H, Yadgarov L, Zak A, Kolíbal M, Tenne R. Mechanism of WS 2 Nanotube Formation Revealed by in Situ/ ex Situ Imaging. ACS NANO 2024; 18:12284-12294. [PMID: 38698720 PMCID: PMC11100282 DOI: 10.1021/acsnano.4c01150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 04/12/2024] [Accepted: 04/24/2024] [Indexed: 05/05/2024]
Abstract
Multiwall WS2 nanotubes have been synthesized from W18O49 nanowhiskers in substantial amounts for more than a decade. The established growth model is based on the "surface-inward" mechanism, whereby the high-temperature reaction with H2S starts on the nanowhisker surface, and the oxide-to-sulfide conversion progresses inward until hollow-core multiwall WS2 nanotubes are obtained. In the present work, an upgraded in situ SEM μReactor with H2 and H2S sources has been conceived to study the growth mechanism in detail. A hitherto undescribed growth mechanism, named "receding oxide core", which complements the "surface-inward" model, is observed and kinetically evaluated. Initially, the nanowhisker is passivated by several WS2 layers via the surface-inward reaction. At this point, the diffusion of H2S through the already existing outer layers becomes exceedingly sluggish, and the surface-inward reaction is slowed down appreciably. Subsequently, the tungsten suboxide core is anisotropically volatilized within the core close to its tips. The oxide vapors within the core lead to its partial out-diffusion, partially forming a cavity that expands with reaction time. Additionally, the oxide vapors react with the internalized H2S gas, forming fresh WS2 layers in the cavity of the nascent nanotube. The rate of the receding oxide core mode increases with temperatures above 900 °C. The growth of nanotubes in the atmospheric pressure flow reactor is carried out as well, showing that the proposed growth model (receding oxide core) is also relevant under regular reaction parameters. The current study comprehensively explains the WS2 nanotube growth mechanism, combining the known model with contemporary insight.
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Affiliation(s)
- Vojtěch Kundrát
- Department
of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot 7610001, Israel
- Thermo Fisher
Scientific, Vlastimila
Pecha 12, 62700 Brno, Czech Republic
| | - Libor Novák
- Thermo Fisher
Scientific, Vlastimila
Pecha 12, 62700 Brno, Czech Republic
| | - Kristýna Bukvišová
- Thermo Fisher
Scientific, Vlastimila
Pecha 12, 62700 Brno, Czech Republic
- Central European
Institute of Technology, Brno University
of Technology, Purkyňova 123, 61200 Brno, Czech Republic
| | - Jakub Zálešák
- Thermo Fisher
Scientific, Vlastimila
Pecha 12, 62700 Brno, Czech Republic
- Chemistry
and Physics of Materials, University of
Salzburg, Jakob-Haringer-Strasse 2A, 5020 Salzburg, Austria
| | - Eva Kolíbalová
- Central European
Institute of Technology, Brno University
of Technology, Purkyňova 123, 61200 Brno, Czech Republic
| | - Rita Rosentsveig
- Department
of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - M.B. Sreedhara
- Solid State
and Structural Chemistry Unit, Indian Institute
of Science, CV Raman Road, Bangalore 560012, India
| | - Hila Shalom
- Department
of Chemical Engineering, Ariel University, Ariel 4070814, Israel
| | - Lena Yadgarov
- Department
of Chemical Engineering, Ariel University, Ariel 4070814, Israel
| | - Alla Zak
- Faculty of
Science, Holon Institute of Technology, Golomb Street 52, Holon 5810201, Israel
| | - Miroslav Kolíbal
- Central European
Institute of Technology, Brno University
of Technology, Purkyňova 123, 61200 Brno, Czech Republic
- Institute
of Physical Engineering, Faculty of Mechanical Engineering, Brno University of Technology, Technická 2, 616 69 Brno, Czech Republic
| | - Reshef Tenne
- Department
of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot 7610001, Israel
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5
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Harada T, Suzuki Y, Nakato T, Breu J, Kawamata J. Real-Time Monitoring of Adsorption-Induced Scrolling of Colloidal Inorganic Nanosheets. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:9189-9196. [PMID: 38637013 DOI: 10.1021/acs.langmuir.4c00560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
Inorganic nanotubes have attracted much attention due to their unique physicochemical properties. Nanotubes can be prepared by scrolling exfoliated nanosheets under ambient conditions. However, how the nanosheet scrolled in its colloidal state has not been experimentally visualized. In this paper, we directly observed the scrolling process of nanosheets upon adsorption of organic cations. Exfoliated flat nanosheets of niobate and clay in aqueous colloids were found to scroll by adding organic cations, such as exfoliation reagents, to the colloids. Employment of cationic stilbazolium dye enabled in situ observation of the dye adsorption and scrolling by optical microscopy based on changes in color and morphology of the nanosheets. The scrolling was promoted for nanosheets adsorbed with a stilbazolium dye with a longer alkyl chain, suggesting that the interaction between the hydrophobic parts of the dye cations is the driving force of the scrolling. This finding should encourage research on the formation of nanotubes from nanosheets and also provides important guidelines for the selection of appropriate exfoliation reagents when exfoliating nanosheets from layered crystals.
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Affiliation(s)
- Takumi Harada
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yoshida, Yamaguchi 753-8512, Japan
| | - Yasutaka Suzuki
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yoshida, Yamaguchi 753-8512, Japan
| | - Teruyuki Nakato
- Department of Applied Chemistry, Kyushu Institute of Technology, 1-1 Sensui-cho, Tobata, Kitakyushu, Fukuoka 804-8550, Japan
| | - Josef Breu
- Bavarian Polymer Institute and Department of Chemistry, University of Bayreuth, 95447 Bayreuth, Germany
| | - Jun Kawamata
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yoshida, Yamaguchi 753-8512, Japan
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6
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Dey S, Roy A, Mujib SB, Krishnappa M, Zak A, Singh G. Addressing Irreversibility and Structural Distortion in WS 2 Inorganic Fullerene-Like Nanoparticles: Effects of Voltage Cutoff Experiments in Beyond Li +-Ion Storage Applications. ACS OMEGA 2024; 9:17125-17136. [PMID: 38645312 PMCID: PMC11025099 DOI: 10.1021/acsomega.3c09758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 03/10/2024] [Accepted: 03/14/2024] [Indexed: 04/23/2024]
Abstract
Large interlayer spacing beneficially allows Na+- and K+-ion storage in transition-metal dichalcogenide (TMD)-based electrodes, but side reactions and volume change, which pulverize the TMD crystalline structure, are persistent challenges for the utilization of these materials in next-generation devices. This study first determines whether irreversibility due to structural distortion, which results in poor cycling stability, is also apparent in the case of inorganic fullerene-like (IF) tungsten disulfide (WS2) nanocages (WS2IF). To address these problems, this study proposes upper and lower voltage cutoff experiments to limit specific reactions in Na+/WS2IF and K+/WS2IF half-cells. Three-dimensional (3D) differential capacity curves and derived surface plots highlight the continuation of reversible reactions when a high upper cutoff technique is applied, thereby indirectly suggesting restricted structural dissolution. This resulted in improved capacity retention with stable performance and a higher Coulombic efficiency, laying the ground for the use of TMD-based materials beyond Li+-ion storage devices.
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Affiliation(s)
- Sonjoy Dey
- Department
of Mechanical and Nuclear Engineering, Kansas
State University, Manhattan, Kansas 66506, United States
| | - Arijit Roy
- Department
of Mechanical and Nuclear Engineering, Kansas
State University, Manhattan, Kansas 66506, United States
| | - Shakir Bin Mujib
- Department
of Mechanical and Nuclear Engineering, Kansas
State University, Manhattan, Kansas 66506, United States
| | - Manjunath Krishnappa
- Department
of Physics, Faculty of Sciences, Holon Institute
of Technology, Holon 5810201, Israel
- Advanced
Research Centre for Clean and Green Energy, Department of Chemistry, Nitte Meenakshi Institute of Technology, Bangalore 560064, India
| | - Alla Zak
- Department
of Physics, Faculty of Sciences, Holon Institute
of Technology, Holon 5810201, Israel
| | - Gurpreet Singh
- Department
of Mechanical and Nuclear Engineering, Kansas
State University, Manhattan, Kansas 66506, United States
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7
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Gercci Y, Yosef-Tal N, Bendikov T, Dodiuk H, Kenig S, Tenne R. The Mechanical Properties Relationship of Radiation-Cured Nanocomposites Based on Acrylates and Cationic Polymerized Epoxies and the Composition of Silane-Modified Tungsten Disulfide Nanoparticles. Polymers (Basel) 2023; 15:3061. [PMID: 37514450 PMCID: PMC10383511 DOI: 10.3390/polym15143061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 07/08/2023] [Accepted: 07/12/2023] [Indexed: 07/30/2023] Open
Abstract
The effect of semiconducting tungsten disulfide (WS2) nanoparticles (NPs), functionalized by either methacryloxy, glycidyl, vinyl, or amino silanes, has been studied in photocuring of acrylate and epoxy resins (the latter photocured according to a cationic mechanism). The curing time, degree of curing (DC), thermal effects, and mechanical properties of the radiation-cured resins were investigated. X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM) analyses confirmed that a silane coating was formed (1-4 nm) on the NPs' surface having a thickness of 1-4 nm. Fourier transition infrared (FTIR) was used to determine the DC of the nanocomposite resin. The curing time of the epoxy resin, at 345-385 nm wavelength, was 10 to 20 s, while for acrylate, the curing time was 7.5 min, reaching 92% DC in epoxy and 84% in acrylate. The glass transition temperature (Tg) of the photocured acrylates in the presence of WS2 NPs increased. In contrast to the acrylate, the epoxy displayed no significant variations of the Tg. It was found that the silane surface treatments enhanced the DC. Significant increases in impact resistance and enhancement in shear adhesion strength were observed when the NPs were treated with vinyl silane. A previous study has shown that the addition of WS2 NPs at a concentration of 0.5 wt.% is the optimal loading for improving the resin's mechanical properties. This study supports these earlier findings not only for the unmodified NPs but also for those functionalized with silane moieties. This study opens new vistas for the photocuring of resins and polymers in general when incorporating WS2 NPs.
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Affiliation(s)
- Yarden Gercci
- Department of Polymer Materials Engineering, Shenkar College, Anna Frank 12, Ramat-Gan 5252626, Israel
| | - Natali Yosef-Tal
- Department of Polymer Materials Engineering, Shenkar College, Anna Frank 12, Ramat-Gan 5252626, Israel
| | - Tatyana Bendikov
- Department of Materials and Interfaces, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Hanna Dodiuk
- Department of Polymer Materials Engineering, Shenkar College, Anna Frank 12, Ramat-Gan 5252626, Israel
| | - Samuel Kenig
- Department of Polymer Materials Engineering, Shenkar College, Anna Frank 12, Ramat-Gan 5252626, Israel
| | - Reshef Tenne
- Department of Materials and Interfaces, Weizmann Institute of Science, Rehovot 7610001, Israel
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8
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Wang X, Yao CB, Wang LY, Wang ZM, Jiang CH, Liu XJ. Hydrothermal synthesis and controlled growth of group-VIB W metal compound nanostructures from tungsten oxide to tungsten disulphide. NANOSCALE 2022; 14:14670-14682. [PMID: 36165101 DOI: 10.1039/d2nr03786f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Two-dimensional lateral group-VIB transition metal dichalcogenides (TMDs) have attracted much attention in the fast evolving field of advanced photoelectric functional materials, but their controllable fabrication is challenging. Herein, an emerging synthetic route for sulfurization of tungsten oxide was developed. During the hydrothermal reaction, the optimization of the precursor selection and synthesis parameters led to the tunable properties of WO3-WSxOy-WS2 nanostructures. The vulcanization was thermodynamically favorably at low temperatures and in an environment with a sufficient S source, wherein WO3 was reduced by H atoms to WO3-x, and S atoms were preferentially adsorbed on O vacancies. The WSxOy nanostructures have a narrow band-gap attributed to the effect of S on the valence band top and electronic density of states by density functional theory. The photocurrent response and charge transfer properties of WSxOy were improved due to the charge transport between WS2 and WO3. Understanding the formation and transformation of WS2 nanostructures in solution contributes to the discovery of the important structure-efficiency relationship, which may be extended to other TMDs systems. Hence, extensive research efforts are still needed to develop safer and more efficient synthesis and modification methods to fully utilize the distinctive advantageous properties of TMDs in the photoelectric field.
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Affiliation(s)
- Xue Wang
- Key Laboratory of Photonic and electric Bandgap materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin, 150025, Heilongjiang Province, China.
| | - Cheng-Bao Yao
- Key Laboratory of Photonic and electric Bandgap materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin, 150025, Heilongjiang Province, China.
| | - Li-Yuan Wang
- Key Laboratory of Photonic and electric Bandgap materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin, 150025, Heilongjiang Province, China.
| | - Ze-Miao Wang
- Key Laboratory of Photonic and electric Bandgap materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin, 150025, Heilongjiang Province, China.
| | - Cai-Hong Jiang
- Key Laboratory of Photonic and electric Bandgap materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin, 150025, Heilongjiang Province, China.
| | - Xiao-Jie Liu
- Key Laboratory of Photonic and electric Bandgap materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin, 150025, Heilongjiang Province, China.
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9
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Yue L, Xu D, Wei Z, Zhao T, Lin T, Tenne R, Zak A, Li Q, Liu B. Size and Shape's Effects on the High-Pressure Behavior of WS 2 Nanomaterials. MATERIALS (BASEL, SWITZERLAND) 2022; 15:2838. [PMID: 35454530 PMCID: PMC9024497 DOI: 10.3390/ma15082838] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 03/31/2022] [Accepted: 04/11/2022] [Indexed: 11/23/2022]
Abstract
Exploring the behavior of nanocrystals with varying shapes and sizes under high pressure is crucial to understanding the relationship between the morphology and properties of nanomaterials. In this study, we investigated the compression behaviors of WS2 nanotubes (NT-WS2) and fullerene-like nanoparticles (IF-WS2) by in situ high-pressure X-ray diffraction (XRD) and Raman spectroscopy. It was found that the bulk modulus of NT-WS2 is 81.7 GPa, which is approximately twice as large as that of IF-WS2 (46.3 GPa). This might be attributed to the fact that IF-WS2 with larger d-spacing along the c-axis and higher defect density are more compressible under isotropic pressure than NT-WS2. Thus, the slender NT-WS2 possess a more stable crystal structure than the IF-WS2. Our findings reveal that the effects of morphology and size play crucial roles in determining the high-pressure properties of WS2 nanoparticles, and provide significant insight into the relationship between structure and properties.
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Affiliation(s)
- Lei Yue
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China; (L.Y.); (D.X.); (Z.W.); (T.Z.); (T.L.); (B.L.)
| | - Dan Xu
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China; (L.Y.); (D.X.); (Z.W.); (T.Z.); (T.L.); (B.L.)
| | - Ziyu Wei
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China; (L.Y.); (D.X.); (Z.W.); (T.Z.); (T.L.); (B.L.)
| | - Tingting Zhao
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China; (L.Y.); (D.X.); (Z.W.); (T.Z.); (T.L.); (B.L.)
| | - Tao Lin
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China; (L.Y.); (D.X.); (Z.W.); (T.Z.); (T.L.); (B.L.)
| | - Reshef Tenne
- Department of Materials and Interfaces, Weizmann Institute, Rehovot 76100, Israel
| | - Alla Zak
- Faculty of Sciences, HIT—Holon Institute of Technology, 52 Golomb St., Holon 5810201, Israel;
| | - Quanjun Li
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China; (L.Y.); (D.X.); (Z.W.); (T.Z.); (T.L.); (B.L.)
| | - Bingbing Liu
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China; (L.Y.); (D.X.); (Z.W.); (T.Z.); (T.L.); (B.L.)
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10
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Sinha SS, Višić B, Byregowda A, Yadgarov L. Dynamical Nature of Exciton‐Polariton Coupling in WS
2
Nanoparticles. Isr J Chem 2022. [DOI: 10.1002/ijch.202100128] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sudarson Sekhar Sinha
- Department of Materials and Interfaces Weizmann Institute of Science Rehovot 7610001 Israel
| | - Bojana Višić
- Institute of Physics Belgrade University of Belgrade Pregrevica 118 11080 Belgrade Serbia
- Solid State Physics Department Jozef Stefan Institute Jamova cesta 39 1000 Ljubljana Slovenia
| | - Archana Byregowda
- The Department Chemical Engineering Ariel University Ramat HaGolan St 65 4077625 Ariél
| | - Lena Yadgarov
- The Department Chemical Engineering Ariel University Ramat HaGolan St 65 4077625 Ariél
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11
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Kisała J, Ferraria AM, Mitina N, Cieniek B, Krzemiński P, Pogocki D, Nebesnyi R, Zaichenko O, Bobitski Y. Photocatalytic activity of layered MoS 2 in the reductive degradation of bromophenol blue. RSC Adv 2022; 12:22465-22475. [PMID: 36105982 PMCID: PMC9366594 DOI: 10.1039/d2ra03362c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 07/28/2022] [Indexed: 11/21/2022] Open
Abstract
Molybdenum disulphide (MoS2) is a layered material with interesting photocatalytic properties. In this study, a layered MoS2 was produced using a hydrothermal method. The obtained material was characterised by XRD (X-ray diffraction), XPS (X-ray photoelectron spectroscopy), SEM (scanning electron microscopy), UV-Vis spectroscopy, DLS (dynamic light scattering), and zeta potential analysis. For the evaluation of the photocatalytic properties of layered MoS2, a solution of bromophenol blue (BPB) and the catalyst was illuminated for 120 minutes. According to the experimental results, MoS2 exhibited excellent catalytic activity in BPB degradation. The MoS2 preparation method enabled improved light harvesting, avoided fast charge recombination (related to bulk MoS2), and created a large number of suitable electron transfer sites for photocatalytic reactions. Simulation of BPB decay and bromide production was carried out for a further understanding of MoS2 photocatalytic action. The simulation results proved the reduction mechanism of BPB photodegradation. Molybdenum disulphide (MoS2) is a layered material with interesting photocatalytic properties.![]()
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Affiliation(s)
- Joanna Kisała
- Department of Biology, Institute of Biology and Biotechnology, University of Rzeszow, Pigonia 1, 35-310 Rzeszow, Poland
| | - Ana M. Ferraria
- BSIRG-iBB-Institute for Bioengineering and Biosciences, Universidade de Lisboa, 1049-001 Lisbon, Portugal
- Associate Laboratory i4HB—Institute for Health and Bioeconomy at Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - Nataliya Mitina
- Department of Organic Chemistry, Institute of Chemistry and Chemical Technologies, Lviv Polytechnic National University, 79013 Lviv, Ukraine
| | - Bogumił Cieniek
- Institute of Materials Science, College of Natural Sciences, University of Rzeszow, Pigonia 1, 35-959 Rzeszow, Poland
| | - Piotr Krzemiński
- Centre for Microelectronics and Nanotechnology, Institute of Physics, University of Rzeszow, Pigonia 1, 35-959 Rzeszow, Poland
| | - Dariusz Pogocki
- Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195, Warsaw, Poland
| | - Roman Nebesnyi
- Technology of Organic Products Department, Lviv Polytechnic National University, 12S. Bandera St., Lviv, 79013, Ukraine
| | - Oleksandr Zaichenko
- Department of Organic Chemistry, Institute of Chemistry and Chemical Technologies, Lviv Polytechnic National University, 79013 Lviv, Ukraine
| | - Yaroslav Bobitski
- Centre for Microelectronics and Nanotechnology, Institute of Physics, University of Rzeszow, Pigonia 1, 35-959 Rzeszow, Poland
- Department of Photonics, Lviv Polytechnic National University, 1 Sviatoho Yura Sq., 79013 Lviv, Ukraine
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12
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13
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Brune V, Grosch M, Weißing R, Hartl F, Frank M, Mishra S, Mathur S. Influence of the choice of precursors on the synthesis of two-dimensional transition metal dichalcogenides. Dalton Trans 2021; 50:12365-12385. [PMID: 34318836 DOI: 10.1039/d1dt01397a] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The interest in transition metal dichalcogenides (TMDCs; MEy/2; M = transition metal; E = chalcogenide, y = valence of the metal) has grown exponentially across various science and engineering disciplines due to their unique structural chemistry manifested in a two-dimensional lattice that results in extraordinary electronic and transport properties desired for applications in sensors, energy storage and optoelectronic devices. Since the properties of TMDCs can be tailored by changing the stacking sequence of 2D monolayers with similar or dis-similar materials, a number of synthetic routes essentially based on the disintegration of bulk (e.g., chemical exfoliation) or the integration of atomic constituents (e.g., vapor phase growth) have been explored. Despite a large body of data available on the chemical synthesis of TMDCs, experimental strategies with high repeatability of control over film thickness, phase and compositional purity remain elusive, which calls for innovative synthetic concepts offering, for instance, self-limited growth in the z-direction and homogeneous lateral topography. This review summarizes the recent conceptual advancements in the growth of layered van der Waals TMDCs from both mixtures of metal and chalcogen sources (multi-source precursors; MSPs) and from molecular compounds containing metals and chalcogens in one starting material (single-source precursor; SSPs). The critical evaluation of the strengths, limitations and opportunities of MSP and SSP approaches is provided as a guideline for the fabrication of TMDCs from commercial and customized molecular precursors. For example, alternative synthetic pathways using tailored molecular precursors circumvent the challenges of differential nucleation and crystal growth kinetics that are invariably associated with conventional gas phase chemical vapor transport (CVT) and chemical vapor deposition (CVD) of a mixture of components. The aspects of achieving high compositional purity and alternatives to minimize competing reactions or side products are discussed in the context of efficient chemical synthesis of TMDCs. Moreover, a critical analysis of the potential opportunities and existing bottlenecks in the synthesis of TMDCs and their intrinsic properties is provided.
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Affiliation(s)
- Veronika Brune
- Institute of Inorganic Chemistry, University of Cologne, Greinstraße 6, D-50939 Cologne, Germany.
| | - Matthias Grosch
- Institute of Inorganic Chemistry, University of Cologne, Greinstraße 6, D-50939 Cologne, Germany.
| | - René Weißing
- Institute of Inorganic Chemistry, University of Cologne, Greinstraße 6, D-50939 Cologne, Germany.
| | - Fabian Hartl
- Institute of Inorganic Chemistry, University of Cologne, Greinstraße 6, D-50939 Cologne, Germany.
| | - Michael Frank
- Institute of Inorganic Chemistry, University of Cologne, Greinstraße 6, D-50939 Cologne, Germany.
| | - Shashank Mishra
- Université Claude Bernard Lyon 1, CNRS, UMR 5256, IRCELYON, 2 avenue Albert Einstein, 69626 Villeurbanne, France.
| | - Sanjay Mathur
- Institute of Inorganic Chemistry, University of Cologne, Greinstraße 6, D-50939 Cologne, Germany.
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14
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Lei J, Xie Y, Yakobson BI. Gas-Phase "Prehistory" and Molecular Precursors in Monolayer Metal Dichalcogenides Synthesis: The Case of MoS 2. ACS NANO 2021; 15:10525-10531. [PMID: 34105941 DOI: 10.1021/acsnano.1c03103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Two-dimensional MoS2 is one of the most promising materials for nanoelectronics due to its semiconducting nature and plethora of extraordinary properties. The main method for mass production of large-scale, high-quality MoS2 monolayers is chemical vapor deposition (CVD). Yet, the details of the chemistry occurring during the synthesis remain largely unknown, hindering process optimization. Combining ab initio molecular dynamics (AIMD) simulations and first-principles calculations allows us to explore the complete processes of MoS2 monolayer growth at the atomic level. We find that solid MoO3 precursor sublimates forming ringlike molecules, such as Mo3O9, which can later be regarded as gas-phase Mo-carrier reactants, undergoing sulfurization in three main stages: ring opening, chain breaking as the rate-limiting step, and further sulfurization. The fully sulfurized MoS6 molecule emerges as an immediate gas precursor to the crystal growth, as it reacts to join the MoS2-layer edge, with the release of a S4 molecule. Our comprehensive study provides detailed insights into the microscopic reaction mechanisms of MoS2 CVD growth and guidance for optimizing the synthesis parameters for transition metal dichalcogenides.
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Affiliation(s)
- Jincheng Lei
- Department of Materials Science & NanoEngineering, Rice University, Houston, Texas 77005, United States
| | - Yu Xie
- Department of Materials Science & NanoEngineering, Rice University, Houston, Texas 77005, United States
| | - Boris I Yakobson
- Department of Materials Science & NanoEngineering, Rice University, Houston, Texas 77005, United States
- Department of Chemistry, Rice University, Houston, Texas 77005, United States
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15
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Employment of Micro- and Nano-WS2 Structures to Enhance the Tribological Properties of Copper Matrix Composites. LUBRICANTS 2021. [DOI: 10.3390/lubricants9050053] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Friction and wear are responsible for around 23% of the energy consumption in transportation, manufacturing, power generation, and residential sectors. Employed components are exposed to a wide range of operational conditions, therefore a suitable material design is fundamental to decreasing tribological issues, energy consumption, costs, and environmental impact. This study aims to analyze the effect of different solid lubricants on the suitability of copper matrix composites (CuMCs) as a potential solution to reduce the depletion of sliding electrical contacts working under extreme conditions. CuMCs samples are produced by cold-pressing and sintering to merge a high electrical conductivity with the lubricant effect supplied by different species, namely tungsten disulfide micro-powder (WS2), inorganic fullerene-like (IF) tungsten disulfide nanoparticles, and graphene nanoplatelets (GNP). The crystalline structure of the pristine and composite materials is characterized via XRD. The electrical tests show a small decrease of conductivity compared to pure copper, due to the insulating effect of WS2; however, the measured values are still adequate for conduction purposes. Micro-scratch and wear tests highlight the positive effect of the combination of WS2 structures and GNP. The friction coefficient reduction leads to the possibility of extending the lifetime of the components.
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16
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Majumder S, Quang ND, Kim C, Kim D. Anion exchange and successive ionic layer adsorption and reaction-assisted coating of BiVO4 with Bi2S3 to produce nanostructured photoanode for enhanced photoelectrochemical water splitting. J Colloid Interface Sci 2021; 585:72-84. [DOI: 10.1016/j.jcis.2020.11.081] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 11/15/2020] [Accepted: 11/22/2020] [Indexed: 10/22/2022]
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17
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Gupta D, Chauhan V, Kumar R. A comprehensive review on synthesis and applications of molybdenum disulfide (MoS2) material: Past and recent developments. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.108200] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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18
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Chithaiah P, Ghosh S, Idelevich A, Rovinsky L, Livneh T, Zak A. Solving the "MoS 2 Nanotubes" Synthetic Enigma and Elucidating the Route for Their Catalyst-Free and Scalable Production. ACS NANO 2020; 14:3004-3016. [PMID: 32053342 DOI: 10.1021/acsnano.9b07866] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
This study solves a more than two-decades-long "MoS2 Nanotubes" synthetic enigma: the futile attempts to synthesize inorganic nanotubes (INTs) of MoS2 via vapor-gas-solid (VGS) reaction. Among them was replication of the recently reported pure-phase synthesis of the analogous INT-WS2. During these years, successful syntheses of spherical nanoparticles of WS2 and MoS2 were demonstrated as well. All these nanostructures were obtained by VGS reaction of corresponding oxides with H2/H2S gases, at elevated temperatures (>800 °C), in a fluidized bed reactor (FBR) and a one-pot process. This success and apparent similarity between the two compounds "hid" from us the option of looking for the INT-MoS2 reaction parameters in entirely different regimes. The main challenge in the synthesis of INT-MoS2 via VGS was the instability of the in situ prepared suboxide nanowhiskers against over-reduction and recrystallization at high temperatures. The elucidated growth mechanism dictates separation of the reaction into five steps, as properties of the intermediate products are not consistent with a single process and require individual conditions for each step. A horizontal reactor with a porous-quartz reaction cell, which creates proper quasi-static (contrary to the FBR) conditions for the reaction involving sublimation, was imperative for the effective nanofabrication of INT-MoS2. These findings render a reproducible synthetic route for the production of highly crystalline pure-phase MoS2 nanotubes via a multistep VGS process, without the assistance of a catalyst and in a scalable fashion. Being a semiconductor, flexible, and strong, INT-MoS2 offers a platform for much research and numerous potential applications, particularly in the field of optoelectronics and reinforcement of polymer composites.
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Affiliation(s)
- Pallellappa Chithaiah
- Faculty of Sciences, Holon Institute of Technology, Holon, 5810201, Israel
- Department of Chemistry, Centre for Nano and Soft Matter Sciences, Bengaluru, 560013, India
| | - Saptarshi Ghosh
- Faculty of Sciences, Holon Institute of Technology, Holon, 5810201, Israel
| | | | - Lev Rovinsky
- Faculty of Sciences, Holon Institute of Technology, Holon, 5810201, Israel
| | - Tsachi Livneh
- Department of Physics, Nuclear Research Center Negev, Beer-Sheva, 84190, Israel
| | - Alla Zak
- Faculty of Sciences, Holon Institute of Technology, Holon, 5810201, Israel
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19
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Jo S, Jung JW, Baik J, Kang JW, Park IK, Bae TS, Chung HS, Cho CH. Surface-diffusion-limited growth of atomically thin WS 2 crystals from core-shell nuclei. NANOSCALE 2019; 11:8706-8714. [PMID: 31017154 DOI: 10.1039/c9nr01594a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Atomically thin transition metal dichalcogenides (TMDs) have recently attracted great attention since the unique and fascinating physical properties have been found in various TMDs, implying potential applications in next-generation devices. The progress towards developing new functional and high-performance devices based on TMDs, however, is limited by the difficulty in producing large-area monolayer TMDs due to a lack of knowledge of the growth processes of monolayer TMDs. In this work, we have investigated the growth processes of monolayer WS2 crystals using a thermal chemical vapor deposition method, in which the growth conditions were adjusted in a systematic manner. It was found that, after forming WO3-WS2 core-shell nanoparticles as nucleation sites on a substrate, the growth of three-dimensional WS2 islands proceeds by ripening and crystallization processes. Lateral growth of monolayer WS2 crystals subsequently occurs by the surface diffusion process of adatoms toward the step edge of the three-dimensional WS2 islands. Our results provide understanding of the growth processes of monolayer WS2 by using chemical vapor deposition methods.
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Affiliation(s)
- Sunghwan Jo
- Department of Emerging Materials Science, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, South Korea.
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20
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Serra M, Arenal R, Tenne R. An overview of the recent advances in inorganic nanotubes. NANOSCALE 2019; 11:8073-8090. [PMID: 30994692 DOI: 10.1039/c9nr01880h] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Advanced nanomaterials play a prominent role in nanoscience and nanotechnology developments, opening new frontiers in these areas. Among these nanomaterials, due to their unique characteristics and enhanced chemical and physical properties, inorganic nanotubes have been considered one of the most interesting nanostructures. In recent years, important progress has been achieved in the production and study of these nanomaterials, including boron nitride, transition metal dichalcogenide nanotubular structures, misfit-based nanotubes and other hybrid/doped nanotubular objects. This review is devoted to the in-depth analysis of recent studies on the synthesis, atomic structures, properties and applications of inorganic nanotubes and related nanostructures. Particular attention is paid to the growth mechanism of these nanomaterials. This is a crucial point for the challenges ahead related to the mass production of high-quality defect-free nanotubes for a variety of applications.
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Affiliation(s)
- Marco Serra
- Department of Materials and Interfaces, Weizmann Institute, Herzl Street 234, 76100, Rehovot, Israel.
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21
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Liu Z, Murphy AW, Kuppe C, Hooper DC, Valev VK, Ilie A. WS 2 Nanotubes, 2D Nanomeshes, and 2D In-Plane Films through One Single Chemical Vapor Deposition Route. ACS NANO 2019; 13:3896-3909. [PMID: 30912636 PMCID: PMC7007277 DOI: 10.1021/acsnano.8b06515] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Accepted: 03/26/2019] [Indexed: 05/20/2023]
Abstract
We demonstrate a versatile, catalyst free chemical vapor deposition process on insulating substrates capable of producing in one single stream one-dimensional (1D) WO3- x suboxides leading to a wide range of substrate-supported 2H-WS2 polymorphs: a tunable class of out-of-plane (of the substrate) nanophases, with 1D nanotubes and a pure WS2, two-dimensional (2D) nanomesh (defined as a network of webbed, micron-size, few-layer 2D sheets) at its extremes; and in-plane (parallel to the substrate) mono- and few-layer 2D domains. This entails a two-stage approach in which the 2WO3 + 7S → 2WS2 + 3SO2 reaction is intentionally decoupled. First, various morphologies of nanowires or nanorods of high stoichiometry, WO2.92/WO2.9 suboxides (belonging to the class of Magnéli phases) were formed, followed by their sulfurization to undergo reduction to the aforementioned WS2 polymorphs. The continuous transition of WS2 from nanotubes to the out-of-plane 2D nanomesh, via intermediary, mixed 1D-2D phases, delivers tunable functional properties, for example, linear and nonlinear optical properties, such as reflectivity (linked to optical excitations in the material), and second harmonic generation (SHG) and onset of saturable absorption. The SHG effect is very strong across the entire tunable class of WS2 nanomaterials, weakest in nanotubes, and strongest in the 2D nanomesh. Furthermore, a mechanism via suboxide (WO3- x) intermediate as a possible path to 2D domain growth is demonstrated. 2D, in-plane WS2 domains grow via "self-seeding and feeding" where short WO2.92/WO2.9 nanorods provide both the nucleation sites and the precursor feedstock. Understanding the reaction path (here, in the W-O-S space) is an emerging approach toward controlling the nucleation, growth, and morphology of 2D domains and films of transition-metal dichalcogenides.
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Affiliation(s)
- Zichen Liu
- Centre
for Graphene Science, University of Bath, Bath BA2 7AY, United Kingdom
- Centre
for Nanoscience and Nanotechnology, University
of Bath, Bath BA2 7AY, United Kingdom
- Department
of Physics, University of Bath, Claverton Down, Bath BA2
7AY, United Kingdom
| | - Alexander William
Allen Murphy
- Centre
for Photonics and Photonic Materials, University
of Bath, Bath BA2 7AY, United Kingdom
- Centre
for Nanoscience and Nanotechnology, University
of Bath, Bath BA2 7AY, United Kingdom
- Department
of Physics, University of Bath, Claverton Down, Bath BA2
7AY, United Kingdom
| | - Christian Kuppe
- Centre
for Photonics and Photonic Materials, University
of Bath, Bath BA2 7AY, United Kingdom
- Centre
for Nanoscience and Nanotechnology, University
of Bath, Bath BA2 7AY, United Kingdom
- Department
of Physics, University of Bath, Claverton Down, Bath BA2
7AY, United Kingdom
| | - David Charles Hooper
- Centre
for Photonics and Photonic Materials, University
of Bath, Bath BA2 7AY, United Kingdom
- Centre
for Nanoscience and Nanotechnology, University
of Bath, Bath BA2 7AY, United Kingdom
- Department
of Physics, University of Bath, Claverton Down, Bath BA2
7AY, United Kingdom
| | - Ventsislav Kolev Valev
- Centre
for Photonics and Photonic Materials, University
of Bath, Bath BA2 7AY, United Kingdom
- Centre
for Nanoscience and Nanotechnology, University
of Bath, Bath BA2 7AY, United Kingdom
- Department
of Physics, University of Bath, Claverton Down, Bath BA2
7AY, United Kingdom
| | - Adelina Ilie
- Centre
for Graphene Science, University of Bath, Bath BA2 7AY, United Kingdom
- Centre
for Nanoscience and Nanotechnology, University
of Bath, Bath BA2 7AY, United Kingdom
- Department
of Physics, University of Bath, Claverton Down, Bath BA2
7AY, United Kingdom
- E-mail:
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22
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Hod O, Urbakh M, Naveh D, Bar-Sadan M, Ismach A. Flatlands in the Holy Land: The Evolution of Layered Materials Research in Israel. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1706581. [PMID: 29770507 DOI: 10.1002/adma.201706581] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 12/27/2017] [Indexed: 06/08/2023]
Abstract
The experimental identification of fullerenes in 1985, carbon nanotubes in 1991, inorganic nanotubes in 1992, and graphene in 2004 are cornerstone events that have marked the beginning of the layered nanostructures era of materials science. Nowadays, the synthesis of such low-dimensional systems is a routine practice allowing the controlled fabrication of 0-, 1-, and 2D layered structures of diverse chemical compositions. These systems possess unique physical properties that stem from their structural anisotropy characterized by strong intralayer covalent bonding and weaker interlayer dispersive interactions. This, in turn, results in promising functionality that attracts the attention of scientists from many disciplines including chemists, physicists, material scientists, engineers, as well as life scientists that are interested in both their basic and applied science aspects. Here, a short review of the contribution of the Israeli scientific community to this effort over the past 3 decades, is provided.
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Affiliation(s)
- Oded Hod
- Department of Physical Chemistry, School of Chemistry, The Raymond and Beverly Sackler Faculty of Exact Sciences and The Sackler Center for Computational Molecular and Materials Science, Tel Aviv University, Tel Aviv, 6997801, Israel
| | - Michael Urbakh
- Department of Physical Chemistry, School of Chemistry, The Raymond and Beverly Sackler Faculty of Exact Sciences and The Sackler Center for Computational Molecular and Materials Science, Tel Aviv University, Tel Aviv, 6997801, Israel
| | - Doron Naveh
- Faculty of Engineering and Bar-Ilan Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan, 52900, Israel
| | - Maya Bar-Sadan
- Department of Chemistry, Ilse Katz Institute for Nanoscale Science and Technology, Ben Gurion University, P.O.B. 653, Beer-Sheva, 8410501, Israel
| | - Ariel Ismach
- Department of Materials Science and Engineering, Tel Aviv University, Ramat Aviv, Tel Aviv, 6997801, Israel
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23
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Dahl-Petersen C, Šarić M, Brorson M, Moses PG, Rossmeisl J, Lauritsen JV, Helveg S. Topotactic Growth of Edge-Terminated MoS 2 from MoO 2 Nanocrystals. ACS NANO 2018; 12:5351-5358. [PMID: 29767949 DOI: 10.1021/acsnano.8b00125] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Layered transition metal dichalcogenides have distinct physicochemical properties at their edge-terminations. The production of an abundant density of edge structures is, however, impeded by the excess surface energy of edges compared to basal planes and would benefit from insight into the atomic growth mechanisms. Here, we show that edge-terminated MoS2 nanostructures can form during sulfidation of MoO2 nanocrystals by using in situ transmission electron microscopy (TEM). Time-resolved TEM image series reveal that the MoO2 surface can sulfide by inward progression of MoO2(202̅):MoS2(002) interfaces, resulting in upright-oriented and edge-exposing MoS2 sheets. This topotactic growth is rationalized in the interplay with density functional theory calculations by successive O-S exchange and Mo sublattice restructuring steps. The analysis shows that formation of edge-terminated MoS2 is energetically favorable at MoO2(110) surfaces and provides a necessary requirement for the propensity of a specific MoO2 surface termination to form edge-terminated MoS2. Thus, the present findings should benefit the rational development of transition metal dichalcogenide nanomaterials with abundant edge terminations.
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Affiliation(s)
- Christian Dahl-Petersen
- Haldor Topsoe A/S , Haldor Topsøes Allé 1 , DK-2800 Kgs. Lyngby , Denmark
- Interdisciplinary Nanoscience Center (iNANO) , Aarhus University , Gustav Wieds Vej 14 , DK-8000 Aarhus C , Denmark
| | - Manuel Šarić
- Department of Physics , Technical University of Denmark , DK-2800 Kgs. Lyngby , Denmark
| | - Michael Brorson
- Haldor Topsoe A/S , Haldor Topsøes Allé 1 , DK-2800 Kgs. Lyngby , Denmark
| | - Poul Georg Moses
- Haldor Topsoe A/S , Haldor Topsøes Allé 1 , DK-2800 Kgs. Lyngby , Denmark
| | - Jan Rossmeisl
- Nano-Science Center, Department of Chemistry , University of Copenhagen , Universitetsparken 5 , DK-2100 Copenhagen , Denmark
| | - Jeppe Vang Lauritsen
- Interdisciplinary Nanoscience Center (iNANO) , Aarhus University , Gustav Wieds Vej 14 , DK-8000 Aarhus C , Denmark
| | - Stig Helveg
- Haldor Topsoe A/S , Haldor Topsøes Allé 1 , DK-2800 Kgs. Lyngby , Denmark
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24
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Giri A, Park G, Yang H, Pal M, Kwak J, Jeong U. Synthesis of 2D Metal Chalcogenide Thin Films through the Process Involving Solution-Phase Deposition. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1707577. [PMID: 29687479 DOI: 10.1002/adma.201707577] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 01/28/2018] [Indexed: 06/08/2023]
Abstract
2D metal chalcogenide thin films have recently attracted considerable attention owing to their unique physicochemical properties and great potential in a variety of applications. Synthesis of large-area 2D metal chalcogenide thin films in controllable ways remains a key challenge in this research field. Recently, the solution-based synthesis of 2D metal chalcogenide thin films has emerged as an alternative approach to vacuum-based synthesis because it is relatively simple and easy to scale up for high-throughput production. In addition, solution-based thin films open new opportunities that cannot be achieved from vacuum-based thin films. Here, a comprehensive summary regarding the basic structures and properties of different types of 2D metal chalcogenides, the mechanistic details of the chemical reactions in the synthesis of the metal chalcogenide thin films, recent successes in the synthesis by different reaction approaches, and the applications and potential uses is provided. In the last perspective section, the technical challenges to be overcome and the future research directions in the solution-based synthesis of 2D metal chalcogenides are discussed.
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Affiliation(s)
- Anupam Giri
- Department of Materials Science and Engineering, Pohang University of Science and Technology, Cheongam-Ro 77, Nam-Gu, Pohang, Gyeongbuk, 790-784, Korea
| | - Gyeongbae Park
- Department of Materials Science and Engineering, Pohang University of Science and Technology, Cheongam-Ro 77, Nam-Gu, Pohang, Gyeongbuk, 790-784, Korea
| | - Heeseung Yang
- Department of Materials Science Engineering, Yonsei University, 134 Shinchon-dong, Seoul, 120-749, Korea
| | - Monalisa Pal
- Department of Materials Science and Engineering, Pohang University of Science and Technology, Cheongam-Ro 77, Nam-Gu, Pohang, Gyeongbuk, 790-784, Korea
| | - Junghyeok Kwak
- Department of Materials Science and Engineering, Pohang University of Science and Technology, Cheongam-Ro 77, Nam-Gu, Pohang, Gyeongbuk, 790-784, Korea
| | - Unyong Jeong
- Department of Materials Science and Engineering, Pohang University of Science and Technology, Cheongam-Ro 77, Nam-Gu, Pohang, Gyeongbuk, 790-784, Korea
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25
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Yu Polyakov A, Zak A, Tenne R, Goodilin EA, Solntsev KA. Nanocomposites based on tubular and onion nanostructures of molybdenum and tungsten disulfides: inorganic design, functional properties and applications. RUSSIAN CHEMICAL REVIEWS 2018. [DOI: 10.1070/rcr4798] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The review concerns the development and the state-of-the-art in studies on the surface modification methods aimed at fabricating promising nanocomposites based on multilayer inorganic tubular and onion (fullerene-like) MoS2 and WS2 nanostructures. The synthetic details and structural features of these materials are considered. Considerable attention is paid to targeted functionalization of molybdenum and tungsten disulfide nanostructures and to fundamental principles that underlie their ability to chemical interactions. The functional properties and applications of the obtained materials are described.
The bibliography includes 183 references.
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26
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Murthy AA, Li Y, Palacios E, Li Q, Hao S, DiStefano JG, Wolverton C, Aydin K, Chen X, Dravid VP. Optically Active 1D MoS 2 Nanobelts. ACS APPLIED MATERIALS & INTERFACES 2018; 10:6799-6804. [PMID: 29446913 DOI: 10.1021/acsami.7b16892] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Transition metal dichalcogenides can be synthesized in a wide range of structures. 1D geometries, including nanotubes and nanowires, are especially intriguing due to enhanced light-matter interactions stemming from both the thickness and width possessing subwavelength dimensions. In this letter, we demonstrate the synthesis of 1D MoS2 nanobelts through chemical vapor deposition and examine the mechanism driving the formation of this material. We also report enhanced light scattering within these structures. Finally, we investigate the phototransistor behavior of MoS2 nanobelts and observed a photoresponsivity around 1.5 A/W, an order of magnitude greater than analogous multilayer 2D MoS2 sheets reported previously.
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Affiliation(s)
- Akshay A Murthy
- Department of Materials Science and Engineering,§Northwestern University Atomic and Nanoscale Characterization Experimental (NUANCE) Center, ⊥International Institute for Nanotechnology (IIN), and ∥Department of Electrical Engineering and Computer Science, Northwestern University , Evanston, Illinois 60208, United States
| | - Yuan Li
- Department of Materials Science and Engineering,§Northwestern University Atomic and Nanoscale Characterization Experimental (NUANCE) Center, ⊥International Institute for Nanotechnology (IIN), and ∥Department of Electrical Engineering and Computer Science, Northwestern University , Evanston, Illinois 60208, United States
| | - Edgar Palacios
- Department of Materials Science and Engineering,§Northwestern University Atomic and Nanoscale Characterization Experimental (NUANCE) Center, ⊥International Institute for Nanotechnology (IIN), and ∥Department of Electrical Engineering and Computer Science, Northwestern University , Evanston, Illinois 60208, United States
| | - Qianqian Li
- Department of Materials Science and Engineering,§Northwestern University Atomic and Nanoscale Characterization Experimental (NUANCE) Center, ⊥International Institute for Nanotechnology (IIN), and ∥Department of Electrical Engineering and Computer Science, Northwestern University , Evanston, Illinois 60208, United States
| | - Shiqiang Hao
- Department of Materials Science and Engineering,§Northwestern University Atomic and Nanoscale Characterization Experimental (NUANCE) Center, ⊥International Institute for Nanotechnology (IIN), and ∥Department of Electrical Engineering and Computer Science, Northwestern University , Evanston, Illinois 60208, United States
| | - Jennifer G DiStefano
- Department of Materials Science and Engineering,§Northwestern University Atomic and Nanoscale Characterization Experimental (NUANCE) Center, ⊥International Institute for Nanotechnology (IIN), and ∥Department of Electrical Engineering and Computer Science, Northwestern University , Evanston, Illinois 60208, United States
| | - Chris Wolverton
- Department of Materials Science and Engineering,§Northwestern University Atomic and Nanoscale Characterization Experimental (NUANCE) Center, ⊥International Institute for Nanotechnology (IIN), and ∥Department of Electrical Engineering and Computer Science, Northwestern University , Evanston, Illinois 60208, United States
| | - Koray Aydin
- Department of Materials Science and Engineering,§Northwestern University Atomic and Nanoscale Characterization Experimental (NUANCE) Center, ⊥International Institute for Nanotechnology (IIN), and ∥Department of Electrical Engineering and Computer Science, Northwestern University , Evanston, Illinois 60208, United States
| | - Xinqi Chen
- Department of Materials Science and Engineering,§Northwestern University Atomic and Nanoscale Characterization Experimental (NUANCE) Center, ⊥International Institute for Nanotechnology (IIN), and ∥Department of Electrical Engineering and Computer Science, Northwestern University , Evanston, Illinois 60208, United States
| | - Vinayak P Dravid
- Department of Materials Science and Engineering,§Northwestern University Atomic and Nanoscale Characterization Experimental (NUANCE) Center, ⊥International Institute for Nanotechnology (IIN), and ∥Department of Electrical Engineering and Computer Science, Northwestern University , Evanston, Illinois 60208, United States
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27
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Mohanty B, Ghorbani-Asl M, Kretschmer S, Ghosh A, Guha P, Panda SK, Jena B, Krasheninnikov AV, Jena BK. MoS2 Quantum Dots as Efficient Catalyst Materials for the Oxygen Evolution Reaction. ACS Catal 2018. [DOI: 10.1021/acscatal.7b03180] [Citation(s) in RCA: 158] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bishnupad Mohanty
- CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, India
- Department
of Chemistry, Utkal University, Bhubaneswar 751004, Odisha, India
| | - Mahdi Ghorbani-Asl
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Ion Beam
Physics and Materials Research, 01328 Dresden, Germany
| | - Silvan Kretschmer
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Ion Beam
Physics and Materials Research, 01328 Dresden, Germany
| | - Arnab Ghosh
- Institute of Physics, Bhubaneswar 751005, India
- Department
of Physics, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Puspendu Guha
- Institute of Physics, Bhubaneswar 751005, India
- Homi Bhabha National Institute, Training School Complex,
Anushakti Nagar, Mumbai 400085, India
| | - Subhendu K. Panda
- CSIR-Central Electrochemical Research Institute, Karaikudi 630003, India
| | - Bijayalaxmi Jena
- Department
of Chemistry, Utkal University, Bhubaneswar 751004, Odisha, India
| | - Arkady V. Krasheninnikov
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Ion Beam
Physics and Materials Research, 01328 Dresden, Germany
- Department
of Applied Physics, Aalto University School of Science, P.O. Box 11100, 00076 Aalto, Finland
- National University of Science and Technology MISiS, 119049 Moscow, Russia
| | - Bikash Kumar Jena
- CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, India
- Academy of Scientific & Innovative Research, New Delhi 110001, India
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28
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Tian X, Wei R, Liu S, Zhang Y, Qiu J. Photoluminescence nonuniformity from self-seeding nuclei in CVD-grown monolayer MoSe 2. NANOSCALE 2018; 10:752-757. [PMID: 29255819 DOI: 10.1039/c7nr08662h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
We present optical spectroscopy (photoluminescence and Raman spectrum) studies of monolayer transition metal dichalcogenide MoSe2, with spatial location, temperature and excitation power dependence. The investigated spectra show location-dependent behavior with an increase in photoluminescence and Raman intensity and a blue-shift in photoluminescence peak position in the inner region. The observed behaviors of a large shift in the photoluminescence peak position at the edge and biexciton emissions in the inner region confirm that the monolayer MoSe2 crystals grow from nucleation centers during the CVD process. Temperature activated energy and dependence of the peak position are attributed to residual oxygen during the growth. Investigating this information provides a basis for precisely controlling the synthesis of TMDCs and their application in advanced optoelectronics.
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Affiliation(s)
- Xiangling Tian
- State Key Laboratory of Luminescent Materials and Devices, Guangdong engineering Technology Research and Development Center of special Optical Fiber Materials and Devices, South China University of Technology, Wushan Road 381, Guangzhou 510641, PR China.
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29
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Vieira L, Martins Neto JDR, Ferreira OP, Torresi RM, Cordoba de Torresi SI, Alves OL. Template conversion of MoO3 to MoS2 nanoribbons: synthesis and electrochemical properties. RSC Adv 2018. [DOI: 10.1039/c8ra05988h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Electrochromic α-MoO3 nanoribbons were prepared by a hydrothermal method and converted to MoS2 with the same morphology.
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Affiliation(s)
- Luciana Vieira
- Laboratory of Solid State Chemistry (LQES)
- Institute of Chemistry
- University of Campinas (UNICAMP)
- Campinas
- Brazil
| | | | - Odair Pastor Ferreira
- Laboratório de Materiais Funcionais Avançados (LaMFA)
- Departamento de Física
- Universidade Federal do Ceará
- Fortaleza
- Brazil
| | | | | | - Oswaldo Luiz Alves
- Laboratory of Solid State Chemistry (LQES)
- Institute of Chemistry
- University of Campinas (UNICAMP)
- Campinas
- Brazil
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30
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Zhang C, Chen X, Peng Z, Fu X, Lian L, Luo W, Zhang J, Li H, Wang Y, Zhang D. Phosphine-free synthesis and shape evolution of MoSe2 nanoflowers for electrocatalytic hydrogen evolution reactions. CrystEngComm 2018. [DOI: 10.1039/c8ce00159f] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Free-standing colloidal MoSe2 nanoflowers were synthesized by a phosphine-free solution-processing approach, which showed good electrocatalytic activities.
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Affiliation(s)
- Chi Zhang
- School of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan City
- P. R. China
| | - Xing Chen
- School of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan City
- P. R. China
| | - Zhiwei Peng
- Department of Chemistry and Biochemistry
- University of Maryland
- College Park
- USA
| | - Xiaoming Fu
- School of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan City
- P. R. China
- School of Physics, Communication and Electronics
| | - Linyuan Lian
- School of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan City
- P. R. China
- Engineering Research Centre for Functional Ceramics
| | - Wei Luo
- School of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan City
- P. R. China
- Engineering Research Centre for Functional Ceramics
| | - Jianbing Zhang
- School of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan City
- P. R. China
- Engineering Research Centre for Functional Ceramics
| | - Honglang Li
- Institute of Acoustics
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - YuHuang Wang
- Department of Chemistry and Biochemistry
- University of Maryland
- College Park
- USA
| | - Daoli Zhang
- School of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan City
- P. R. China
- Department of Chemistry and Biochemistry
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31
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Xu F, Kobayashi T, Yang Z, Sekine T, Chang H, Wang N, Xia Y, Zhu Y. How the Toughest Inorganic Fullerene Cages Absorb Shockwave Pressures in a Protective Nanocomposite: Experimental Evidence from Two In Situ Investigations. ACS NANO 2017; 11:8114-8121. [PMID: 28777543 DOI: 10.1021/acsnano.7b02943] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Nanocomposites fabricated using the toughest caged inorganic fullerene WS2 (IF-WS2) nanoparticles could offer ultimate protection via absorbing shockwaves; however, if the IF-WS2 nanomaterials really work, how they behave and what they experience within the nanocomposites at the right moment of impact have never been investigated effectively, due to the limitations of existing investigation techniques that are unable to elucidate the true characteristics of high-speed impacts in composites. We first fabricated Al matrix model nanocomposites and then unlocked the exact roles of IF-WS2 in it at the exact moment of impact, at a time resolution that has never been attempted before, using two in situ techniques. We find that the presence of IF-WS2 reduced the impact velocity by over 100 m/s and in pressure by at least 2 GPa against those Al and hexagonal WS2 platelet composites at an impact speed of 1000 m/s. The IF-WS2 composites achieved an intriguing inelastic impact and outperformed other reference composites, all originating from the "balloon effect" by absorbing the shockwave pressures. This study not only provides fundamental understanding for the dynamic performance of composites but also benefits the development of protective nanocomposite engineering.
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Affiliation(s)
- Fang Xu
- CEMPS, University of Exeter , Exeter EX4 4QF, United Kingdom
- Faculty of Engineering, The University of Nottingham , Nottingham NG7 2RD, United Kingdom
| | | | - Zhuxian Yang
- CEMPS, University of Exeter , Exeter EX4 4QF, United Kingdom
| | - Toshimori Sekine
- Department of Earth and Planetary Systems Science, Hiroshima University , Higashi-Hiroshima 739-8526, Japan
- Centre for High Pressure Science and Technology Advanced Research , Shanghai 201203, People's Republic of China
| | - Hong Chang
- CEMPS, University of Exeter , Exeter EX4 4QF, United Kingdom
| | - Nannan Wang
- CEMPS, University of Exeter , Exeter EX4 4QF, United Kingdom
| | - Yongde Xia
- CEMPS, University of Exeter , Exeter EX4 4QF, United Kingdom
| | - Yanqiu Zhu
- CEMPS, University of Exeter , Exeter EX4 4QF, United Kingdom
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32
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Laikhtman A, Makrinich G, Sezen M, Yildizhan MM, Martinez JI, Dinescu D, Prodana M, Enachescu M, Alonso JA, Zak A. Hydrogen Chemical Configuration and Thermal Stability in Tungsten Disulfide Nanoparticles Exposed to Hydrogen Plasma. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2017; 121:11747-11756. [PMID: 28596812 PMCID: PMC5458142 DOI: 10.1021/acs.jpcc.7b00074] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The chemical configuration and interaction mechanism of hydrogen adsorbed in inorganic nanoparticles of WS2 are investigated. Our recent approaches of using hydrogen activated by either microwave or radiofrequency plasma dramatically increased the efficiency of its adsorption on the nanoparticles surface. In the current work we make an emphasis on elucidation of the chemical configuration of the adsorbed hydrogen. This configuration is of primary importance as it affects its adsorption stability and possibility of release. To get insight on the chemical configuration, we combined the experimental analysis methods with theoretical modeling based on the density functional theory (DFT). Micro-Raman spectroscopy was used as a primary tool to elucidate chemical bonding of hydrogen and to distinguish between chemi- and physisorption. Hydrogen adsorbed in molecular form (H2) was clearly identified in all the plasma-hydrogenated WS2 nanoparticles samples. It was shown that the adsorbed hydrogen is generally stable under high vacuum conditions at room temperature, which implies its stability at the ambient atmosphere. A DFT model was developed to simulate the adsorption of hydrogen in the WS2 nanoparticles. This model considers various adsorption sites and identifies the preferential locations of the adsorbed hydrogen in several WS2 structures, demonstrating good concordance between theory and experiment and providing tools for optimizing of hydrogen exposure conditions and the type of substrate materials.
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Affiliation(s)
- Alex Laikhtman
- Sciences Department, Holon Institute of Technology (HIT), 52 Golomb St., Holon, 5810201 Israel
| | - Gennady Makrinich
- Sciences Department, Holon Institute of Technology (HIT), 52 Golomb St., Holon, 5810201 Israel
| | - Meltem Sezen
- Sabanci University Nanotechnology Research and Application Center (SUNUM), Orhanli, Tuzla, 34956 Istanbul, Turkey
| | - Melike Mercan Yildizhan
- Sabanci University Nanotechnology Research and Application Center (SUNUM), Orhanli, Tuzla, 34956 Istanbul, Turkey
| | - Jose I. Martinez
- Department of Surfaces, Coatings and Molecular Astrophysics, Institute of Material Science of Madrid (ICMM-CSIC), Sor Juana Inés de la Cruz 3, 28049 Madrid, Spain
| | - Doru Dinescu
- Center for Surface Science and Nanotechnology (CSSNT), University Politehnica of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
| | - Mariana Prodana
- Center for Surface Science and Nanotechnology (CSSNT), University Politehnica of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
| | - Marius Enachescu
- Center for Surface Science and Nanotechnology (CSSNT), University Politehnica of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
| | - Julio A. Alonso
- Department of Theoretical, Atomic and Optical Physics, University of Valladolid, 47011 Valladolid, Spain
| | - Alla Zak
- Sciences Department, Holon Institute of Technology (HIT), 52 Golomb St., Holon, 5810201 Israel
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33
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Suresh C, Cabrera LP, Aliaga JA, de León JND, Zepeda TA, Fuentes S, Berhault G, Alonso-Núñez G. Formation of Co-Promoted MoS2 Fullerene-Like Nanostructures on SBA-15 as Effective Hydrodesulfurization Catalyst. Catal Letters 2016. [DOI: 10.1007/s10562-016-1936-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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34
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Zhang X, Xu H, Wang J, Ye X, Lei W, Xue M, Tang H, Li C. Synthesis of Ultrathin WS 2 Nanosheets and Their Tribological Properties as Lubricant Additives. NANOSCALE RESEARCH LETTERS 2016; 11:442. [PMID: 27696323 PMCID: PMC5045450 DOI: 10.1186/s11671-016-1659-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Accepted: 09/22/2016] [Indexed: 05/24/2023]
Abstract
In this paper, ultrathin WS2 nanosheets with thickness of about 5 nm were successfully prepared by a facile solid phase reaction method. The as-synthesized samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). On the basis of experimental results obtained under different reaction durations, a possible formation mechanism of WS2 nanosheets is proposed. The tribological performance of ultrathin WS2 nanosheets as additives in the 500SN base oil was tested by an UMT-2 ball-on-disc tribotester, and the worn surface of the steel disc was investigated by a non-contact optical profile testing instrument and SEM. The results showed that the friction coefficient and anti-wear property of base oil can be improved strikingly by adding ultrathin WS2 nanosheets. Especially, when the concentration of WS2 nanosheets was 1.0 wt.%, the corresponding lubricating oil exhibited the best tribological properties. Moreover, according to the investigation of the wear scar, an anti-friction and anti-wear mechanism is proposed. It is believed that the reduction of friction and wear must come from the addition of ultrathin WS2 nanosheets which can penetrate and enter the friction interface and form a continuous tribofilm on the rubbing face.
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Affiliation(s)
- Xianghua Zhang
- School of Mechanical Engineering, Jiangsu University of Technology, Changzhou, 213001 Jiangsu Province China
| | - Hongxiang Xu
- School of Mechanical Engineering, Jiangsu University of Technology, Changzhou, 213001 Jiangsu Province China
| | - Jiangtao Wang
- School of Materials and Engineering, Jiangsu University of Technology, Changzhou, 213001 Jiangsu Province China
| | - Xia Ye
- School of Mechanical Engineering, Jiangsu University of Technology, Changzhou, 213001 Jiangsu Province China
| | - Weining Lei
- School of Mechanical Engineering, Jiangsu University of Technology, Changzhou, 213001 Jiangsu Province China
| | - Maoquan Xue
- Changzhou Vocational Institute of Light Industry, Changzhou, 213164 Jiangsu Province China
| | - Hua Tang
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013 Jiangsu Province China
| | - Changsheng Li
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013 Jiangsu Province China
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35
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Moriyama R, Wu JWJ, Ohshimo K, Misaizu F. Structures of Vanadium Oxide Cluster Ions up to Nanometer Diameter Investigated by Ion Mobility Mass Spectrometry. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2016. [DOI: 10.1246/bcsj.20160211] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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36
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Li B, Gong Y, Hu Z, Brunetto G, Yang Y, Ye G, Zhang Z, Lei S, Jin Z, Bianco E, Zhang X, Wang W, Lou J, Galvão DS, Tang M, Yakobson BI, Vajtai R, Ajayan PM. Solid-Vapor Reaction Growth of Transition-Metal Dichalcogenide Monolayers. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201604445] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Bo Li
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
| | - Yongji Gong
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
- Department of Chemistry; Rice University; Houston TX 77005 USA
| | - Zhili Hu
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
| | - Gustavo Brunetto
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
- Instituto de Fisica “Gleb Wataghin”; Universidade Estadual de Campinas; Unicamp, CP 6165 13083-970 Campinas Sao Paulo Brazil
| | - Yingchao Yang
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
| | - Gonglan Ye
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
| | - Zhuhua Zhang
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
- State Key Laboratory of Mechanics and Control of Mechanical Structures; Nanjing University of Aeronautics and Astronautics; Nanjing 210016 China
| | - Sidong Lei
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
| | - Zehua Jin
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
| | | | - Xiang Zhang
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
| | - Weipeng Wang
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
| | - Jun Lou
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
| | - Douglas S. Galvão
- Instituto de Fisica “Gleb Wataghin”; Universidade Estadual de Campinas; Unicamp, CP 6165 13083-970 Campinas Sao Paulo Brazil
| | - Ming Tang
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
| | - Boris I. Yakobson
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
| | - Robert Vajtai
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
| | - Pulickel M. Ajayan
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
- Department of Chemistry; Rice University; Houston TX 77005 USA
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37
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Li B, Gong Y, Hu Z, Brunetto G, Yang Y, Ye G, Zhang Z, Lei S, Jin Z, Bianco E, Zhang X, Wang W, Lou J, Galvão DS, Tang M, Yakobson BI, Vajtai R, Ajayan PM. Solid-Vapor Reaction Growth of Transition-Metal Dichalcogenide Monolayers. Angew Chem Int Ed Engl 2016; 55:10656-61. [DOI: 10.1002/anie.201604445] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Bo Li
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
| | - Yongji Gong
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
- Department of Chemistry; Rice University; Houston TX 77005 USA
| | - Zhili Hu
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
| | - Gustavo Brunetto
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
- Instituto de Fisica “Gleb Wataghin”; Universidade Estadual de Campinas; Unicamp, CP 6165 13083-970 Campinas Sao Paulo Brazil
| | - Yingchao Yang
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
| | - Gonglan Ye
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
| | - Zhuhua Zhang
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
- State Key Laboratory of Mechanics and Control of Mechanical Structures; Nanjing University of Aeronautics and Astronautics; Nanjing 210016 China
| | - Sidong Lei
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
| | - Zehua Jin
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
| | | | - Xiang Zhang
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
| | - Weipeng Wang
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
| | - Jun Lou
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
| | - Douglas S. Galvão
- Instituto de Fisica “Gleb Wataghin”; Universidade Estadual de Campinas; Unicamp, CP 6165 13083-970 Campinas Sao Paulo Brazil
| | - Ming Tang
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
| | - Boris I. Yakobson
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
| | - Robert Vajtai
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
| | - Pulickel M. Ajayan
- Department of Materials Science & NanoEngineering; Rice University; Houston TX 77005 USA
- Department of Chemistry; Rice University; Houston TX 77005 USA
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38
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Cain JD, Shi F, Wu J, Dravid VP. Growth Mechanism of Transition Metal Dichalcogenide Monolayers: The Role of Self-Seeding Fullerene Nuclei. ACS NANO 2016; 10:5440-5. [PMID: 27138735 DOI: 10.1021/acsnano.6b01705] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Due to their unique optoelectronic properties and potential for next generation devices, monolayer transition metal dichalcogenides (TMDs) have attracted a great deal of interest since the first observation of monolayer MoS2 a few years ago. While initially isolated in monolayer form by mechanical exfoliation, the field has evolved to more sophisticated methods capable of direct growth of large-area monolayer TMDs. Chemical vapor deposition (CVD) is the technique used most prominently throughout the literature and is based on the sulfurization of transition metal oxide precursors. CVD-grown monolayers exhibit excellent quality, and this process is widely used in studies ranging from the fundamental to the applied. However, little is known about the specifics of the nucleation and growth mechanisms occurring during the CVD process. In this study, we have investigated the nucleation centers or "seeds" from which monolayer TMDs typically grow. This was accomplished using aberration-corrected scanning transmission electron microscopy to analyze the structure and composition of the nuclei present in CVD-grown MoS2-MoSe2 alloys. We find that monolayer growth proceeds from nominally oxi-chalcogenide nanoparticles which act as heterogeneous nucleation sites for monolayer growth. The oxi-chalcogenide nanoparticles are typically encased in a fullerene-like shell made of the TMD. Using this information, we propose a step-by-step nucleation and growth mechanism for monolayer TMDs. Understanding this mechanism may pave the way for precise control over the synthesis of 2D materials, heterostructures, and related complexes.
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Affiliation(s)
- Jeffrey D Cain
- Department of Materials Science and Engineering, ‡International Institute for Nanotechnology, and §Northwestern University Atomic and Nanoscale Characterization Experimental (NUANCE) Center, Northwestern University , Evanston, Illinois 60208, United States
| | - Fengyuan Shi
- Department of Materials Science and Engineering, ‡International Institute for Nanotechnology, and §Northwestern University Atomic and Nanoscale Characterization Experimental (NUANCE) Center, Northwestern University , Evanston, Illinois 60208, United States
| | - Jinsong Wu
- Department of Materials Science and Engineering, ‡International Institute for Nanotechnology, and §Northwestern University Atomic and Nanoscale Characterization Experimental (NUANCE) Center, Northwestern University , Evanston, Illinois 60208, United States
| | - Vinayak P Dravid
- Department of Materials Science and Engineering, ‡International Institute for Nanotechnology, and §Northwestern University Atomic and Nanoscale Characterization Experimental (NUANCE) Center, Northwestern University , Evanston, Illinois 60208, United States
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39
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Lim YV, Huang ZX, Wang Y, Du FH, Zhang J, Chen TP, Ang LK, Yang HY. WS2–3D graphene nano-architecture networks for high performance anode materials of lithium ion batteries. RSC Adv 2016. [DOI: 10.1039/c6ra21141k] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Tungsten disulfide nanoflakes grown on plasma activated three dimensional graphene networks. The work features a simple growth of TMDs-based LIBs anode materials that has excellent rate capability, high specific capacity and long cycling stability.
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Affiliation(s)
- Yew Von Lim
- Pillar of Engineering Product Development
- Singapore University of Technology and Design
- Singapore 487372
- Singapore
| | - Zhi Xiang Huang
- Pillar of Engineering Product Development
- Singapore University of Technology and Design
- Singapore 487372
- Singapore
- Airbus Group Innovations Singapore
| | - Ye Wang
- Pillar of Engineering Product Development
- Singapore University of Technology and Design
- Singapore 487372
- Singapore
| | - Fei Hu Du
- Pillar of Engineering Product Development
- Singapore University of Technology and Design
- Singapore 487372
- Singapore
| | - Jun Zhang
- School of Electrical and Electronic Engineering
- Nanyang Technological University
- Singapore
| | - Tu Pei Chen
- School of Electrical and Electronic Engineering
- Nanyang Technological University
- Singapore
| | - L. K. Ang
- Pillar of Engineering Product Development
- Singapore University of Technology and Design
- Singapore 487372
- Singapore
| | - Hui Ying Yang
- Pillar of Engineering Product Development
- Singapore University of Technology and Design
- Singapore 487372
- Singapore
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40
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Biegger F, Rameshan C, Opitz AK, Noll J, Haunold T, Lang H, Barth S. Thioether functionalised gallium and indium alkoxides in materials synthesis. NEW J CHEM 2016. [DOI: 10.1039/c6nj00402d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Thermolysis of thioether functionalised metal alkoxides leads to the incorporation of sulphides in materials synthesized by CVD and hot-injection method.
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Affiliation(s)
- Felix Biegger
- Vienna University of Technology
- Institute of Materials Chemistry
- 1060 Vienna
- Austria
| | - Christoph Rameshan
- Vienna University of Technology
- Institute of Materials Chemistry
- 1060 Vienna
- Austria
| | - Alexander K. Opitz
- Vienna University of Technology
- Institute of Chemical Technologies and Analytics
- 1060 Vienna
- Austria
| | - Julian Noll
- Technische Universität Chemnitz
- Faculty of Natural Sciences
- Institute of Chemistry
- Inorganic Chemistry
- 09107 Chemnitz
| | - Thomas Haunold
- Vienna University of Technology
- Institute of Materials Chemistry
- 1060 Vienna
- Austria
| | - Heinrich Lang
- Technische Universität Chemnitz
- Faculty of Natural Sciences
- Institute of Chemistry
- Inorganic Chemistry
- 09107 Chemnitz
| | - Sven Barth
- Vienna University of Technology
- Institute of Materials Chemistry
- 1060 Vienna
- Austria
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Sedova A, Bar G, Goldbart O, Ron R, Achrai B, Kaplan-Ashiri I, Brumfeld V, Zak A, Gvishi R, Wagner H, Tenne R. Reinforcing silica aerogels with tungsten disulfide nanotubes. J Supercrit Fluids 2015. [DOI: 10.1016/j.supflu.2015.07.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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42
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Brontvein O, Albu-Yaron A, Levy M, Feuerman D, Popovitz-Biro R, Tenne R, Enyashin A, Gordon JM. Solar Synthesis of PbS-SnS2 Superstructure Nanoparticles. ACS NANO 2015; 9:7831-7839. [PMID: 26154896 DOI: 10.1021/acsnano.5b02412] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We report the synthesis and supporting density-functional-theory computations for a closed-cage, misfit layered-compound superstructure from PbS-SnS2, generated by highly concentrated sunlight from a precursor mixture of Pb, SnS2, and graphite. The unique reactor conditions created in our solar furnace are found to be particularly conducive to the formation of these nanomaterials. Detailed structural and chemical characterization revealed a spontaneous inside-out formation mechanism, with a broad range of nonhollow fullerene-like structures starting at a diameter of ∼20 nm and a wall thickness of ∼5 layers. The computations also reveal a counterintuitive charge transfer pathway from the SnS2 layers to the PbS layers, which indicates that, in contrast to binary-layered compounds where it is principally van der Waals forces that hold the layers together, polar forces appear to be as important in stabilizing superstructures of misfit layered compounds.
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Affiliation(s)
- Olga Brontvein
- Department of Materials and Interfaces, Weizmann Institute of Science , P.O. Box 26, Rehovot 76100, Israel
| | - Ana Albu-Yaron
- Department of Materials and Interfaces, Weizmann Institute of Science , P.O. Box 26, Rehovot 76100, Israel
| | - Moshe Levy
- Department of Materials and Interfaces, Weizmann Institute of Science , P.O. Box 26, Rehovot 76100, Israel
| | - Daniel Feuerman
- Department of Solar Energy and Environmental Physics, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus , Sede Boqer 84990, Israel
| | - Ronit Popovitz-Biro
- Electron Microscopy Unit, Weizmann Institute of Science , P.O. Box 26, Rehovot 76100, Israel
| | - Reshef Tenne
- Department of Materials and Interfaces, Weizmann Institute of Science , P.O. Box 26, Rehovot 76100, Israel
| | - Andrey Enyashin
- Institute of Mathematics and Computer Sciences, Ural Federal University , Lenina Pr. 51, Ekaterinburg 620000, Russia
| | - Jeffrey M Gordon
- Department of Solar Energy and Environmental Physics, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus , Sede Boqer 84990, Israel
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43
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Woo SH, Yadgarov L, Rosentsveig R, Park Y, Song D, Tenne R, Hong SY. Fullerene-like Re-Doped MoS2Nanoparticles as an Intercalation Host with Fast Kinetics for Sodium Ion Batteries. Isr J Chem 2015. [DOI: 10.1002/ijch.201400124] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Song I, Park C, Choi HC. Synthesis and properties of molybdenum disulphide: from bulk to atomic layers. RSC Adv 2015. [DOI: 10.1039/c4ra11852a] [Citation(s) in RCA: 249] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
This review paper aims at a general introduction on up-to-date studies on the synthesis and properties of two-dimensional atomic layers of molybdenum disulphide, along with a brief overview on the bulk and three polytypes.
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Affiliation(s)
- Intek Song
- Center for Artificial Low Dimensional Electronic Systems
- Institute for Basic Science (IBS)
- Pohang
- Korea
- Department of Chemistry
| | - Chibeom Park
- Center for Artificial Low Dimensional Electronic Systems
- Institute for Basic Science (IBS)
- Pohang
- Korea
- Department of Chemistry
| | - Hee Cheul Choi
- Center for Artificial Low Dimensional Electronic Systems
- Institute for Basic Science (IBS)
- Pohang
- Korea
- Department of Chemistry
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Dunne PW, Munn AS, Starkey CL, Lester EH. The sequential continuous-flow hydrothermal synthesis of molybdenum disulphide. Chem Commun (Camb) 2015; 51:4048-50. [DOI: 10.1039/c4cc10158h] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
MoS2 has been prepared by the sequential formation of thiomolybdates, conversion to MoS3 and decomposition to MoS2 in a continuous-flow hydrothermal process.
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Affiliation(s)
- Peter W. Dunne
- Department of Chemical and Environmental Engineering
- University of Nottingham
- University Park
- Nottingham
- UK
| | - Alexis S. Munn
- Department of Chemical and Environmental Engineering
- University of Nottingham
- University Park
- Nottingham
- UK
| | - Chris L. Starkey
- Department of Chemical and Environmental Engineering
- University of Nottingham
- University Park
- Nottingham
- UK
| | - Edward H. Lester
- Department of Chemical and Environmental Engineering
- University of Nottingham
- University Park
- Nottingham
- UK
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46
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Goldman EB, Zak A, Tenne R, Kartvelishvily E, Levin-Zaidman S, Neumann Y, Stiubea-Cohen R, Palmon A, Hovav AH, Aframian DJ. Biocompatibility of tungsten disulfide inorganic nanotubes and fullerene-like nanoparticles with salivary gland cells. Tissue Eng Part A 2014; 21:1013-23. [PMID: 25366879 DOI: 10.1089/ten.tea.2014.0163] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Impaired salivary gland (SG) function leading to oral diseases is relatively common with no adequate solution. Previously, tissue engineering of SG had been proposed to overcome this morbidity, however, not yet clinically available. Multiwall inorganic (tungsten disulfide [WS2]) nanotubes (INT-WS2) and fullerene-like nanoparticles (IF-WS2) have many potential medical applications. A yet unexplored venue application is their interaction with SG, and therefore, our aim was to test the biocompatibility of INT/IF-WS2 with the A5 and rat submandibular cells (RSC) SG cells. The cells were cultured and subjected after 1 day to different concentrations of INT-WS2 and were compared to control groups. Growth curves, trypan blue viability test, and carboxyfluorescein succinimidyl ester (CFSE) proliferation assay were obtained. Furthermore, cells morphology and interaction with the nanoparticles were observed by light microscopy, scanning electron microscopy and transmission electron microscopy (TEM), and energy dispersive X-ray spectroscopy. The results showed no significant differences in growth curves, proliferation kinetics, and viability between the groups compared. Moreover, no alterations were observed in the cell morphology. Interestingly, TEM images indicated that the nanoparticles are uptaken by the cells and accumulate in cytoplasmic vesicles. These results suggest promising future medical applications for these nanoparticles.
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Affiliation(s)
- Elisheva B Goldman
- 1 Faculty of Dental Medicine, The Hebrew University of Jerusalem , Jerusalem, Israel
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Wen Y, Zhang H, Zhang S. One-step gas-solid reaction synthesis of W@WS2 nanorattles and their novel catalytic activity. NANOSCALE 2014; 6:13090-13096. [PMID: 25247244 DOI: 10.1039/c4nr03220a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
W@WS2 nanorattles were synthesised by heating a mixture of WO3 nanoparticles and S at a relatively low temperature between 750 and 950 °C in H2/Ar. In addition to the temperature, the competition between the H2 reduction and the S sulphidation sub-reactions dominated the reaction mechanisms and the morphologies of final products. Based on this, several types of nanostructures, including WS2 nanoflakes, inorganic fullerene-like nanoparticles and W@WS2 nanorattles (with desirable core size and shell thickness), could be selectively prepared by simply tailoring the processing parameters. Moreover, it was found for the first time that as-prepared W@WS2 nanorattles exhibited excellent catalytic activities which were close to or even better than their much more costive Au-based counterparts.
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Affiliation(s)
- Yan Wen
- College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, EX4 4QF, UK.
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48
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Anderson BD, Tracy JB. Nanoparticle conversion chemistry: Kirkendall effect, galvanic exchange, and anion exchange. NANOSCALE 2014; 6:12195-216. [PMID: 25051257 DOI: 10.1039/c4nr02025a] [Citation(s) in RCA: 83] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Conversion chemistry is a rapidly maturing field, where chemical conversion of template nanoparticles (NPs) into new compositions is often accompanied by morphological changes, such as void formation. The principles and examples of three major classes of conversion chemical reactions are reviewed: the Kirkendall effect for metal NPs, galvanic exchange, and anion exchange, each of which can result in void formation in NPs. These reactions can be used to obtain complex structures that may not be attainable by other methods. During each kind of conversion chemical reaction, NPs undergo distinct chemical and morphological changes, and insights into the mechanisms of these reactions will allow for improved fine control and prediction of the structures of intermediates and products. Conversion of metal NPs into oxides, phosphides, sulphides, and selenides often occurs through the Kirkendall effect, where outward diffusion of metal atoms from the core is faster than inward diffusion of reactive species, resulting in void formation. In galvanic exchange reactions, metal NPs react with noble metal salts, where a redox reaction favours reduction and deposition of the noble metal (alloying) and oxidation and dissolution of the template metal (dealloying). In anion exchange reactions, addition of certain kinds of anions to solutions containing metal compound NPs drives anion exchange, which often results in significant morphological changes due to the large size of anions compared to cations. Conversion chemistry thus allows for the formation of NPs with complex compositions and structures, for which numerous applications are anticipated arising from their novel catalytic, electronic, optical, magnetic, and electrochemical properties.
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Affiliation(s)
- Bryan D Anderson
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, NC 27695, USA.
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Xu K, Wang F, Wang Z, Zhan X, Wang Q, Cheng Z, Safdar M, He J. Component-controllable WS(2(1-x))Se(2x) nanotubes for efficient hydrogen evolution reaction. ACS NANO 2014; 8:8468-76. [PMID: 25110810 DOI: 10.1021/nn503027k] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Owing to the excellent potential for fundamental research and technical applications in optoelectronic devices and catalytic activity for hydrogen evolution reaction (HER), transition metal dichalcogenides have recently attracted much attention. Transition metal sulfide nanostructures have been reported and demonstrated promising application in transistors and photodetectors. However, the growth of transition metal selenide nanostructures and their applications has still been a challenge. In this work, we successfully synthesized high-quality WSe2 nanotubes on carbon fibers via selenization. More importantly, through optimizing the growth conditions, ternary WS2(1–x)Se2x nanotubes were synthesized and the composition of S and Se can be systematically controlled. The as-grown WS2(1–x)Se2x nanotubes on carbon fibers, assembled as a working electrode, revealing low overpotential, high exchange current density, and small series resistance, exhibit excellent electrocatalytic properties for hydrogen evolution reaction. Our study provides the experimental groundwork for the synthesis of low-dimensional transition metal dichalcogenides and may open up exciting opportunities for their application in electronics, photoelectronics, and catalytic electrochemical reactions.
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