1
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Lan Z, Kapunan TIM, Vegge T, Castelli IE. Structural and electronic properties of double wall MoSTe nanotubes. Phys Chem Chem Phys 2023; 25:22155-22160. [PMID: 37564016 DOI: 10.1039/d3cp02369a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
Janus nanotubes originating from rolling up asymmetric dichalcogenide monolayers have shown unique properties compared to their 2D and 3D counterparts. Most of the work on Janus nanotubes is focused on single-wall (SW) tubes. In this work, we have investigated the structural and electronic properties of double wall (DW) MoSTe nanotubes using Density Functional Theory (DFT). The most stable DW, corresponding to a minimum of the strain energy, is formed by combining 16- and 24-unit cells for the inner and outer tubes. This DW configuration shows a slightly smaller inner diameter than the SW tube, which was formed by 18-unit cells due to the intra-wall interaction. The investigation of the band gaps of 2D structures under strain and SW/DW nanotubes revealed that the curvature of the nanotube and the strain induced when forming the tube are the two primary factors enabling the band gap tuning. Moreover, we found that the band gaps of the DW MoSTe tubes close, compared to the SWs, generating tubes with a metallic-like behavior. This property makes DW MoSTe nanotubes promising for electrochemical applications.
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Affiliation(s)
- Zhenyun Lan
- Department of Energy Conversion and Storage, Technical University of Denmark, Anker Engelundsvej 411, Kgs. Lyngby DK-2800, Denmark.
- School of Materials Science and Engineering, Hefei University of Technology, Hefei, Anhui, 230009, PR China
| | | | - Tejs Vegge
- Department of Energy Conversion and Storage, Technical University of Denmark, Anker Engelundsvej 411, Kgs. Lyngby DK-2800, Denmark.
| | - Ivano E Castelli
- Department of Energy Conversion and Storage, Technical University of Denmark, Anker Engelundsvej 411, Kgs. Lyngby DK-2800, Denmark.
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2
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Naffakh M, Shuttleworth PS. Investigation of the Crystallization Kinetics and Melting Behaviour of Polymer Blend Nanocomposites Based on Poly(L-Lactic Acid), Nylon 11 and TMDCs WS 2. Polymers (Basel) 2022; 14:2692. [PMID: 35808736 PMCID: PMC9269272 DOI: 10.3390/polym14132692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 06/21/2022] [Accepted: 06/28/2022] [Indexed: 12/04/2022] Open
Abstract
The aim of this work was to study the crystallization kinetics and melting behaviour of polymer blend nanocomposites based on poly (L-lactic acid) (PLLA), nylon 11 and tungsten disulfide nanotubes (INT-WS2), which are layered transition metal dichalcogenides (TMDCs), using non-isothermal differential scanning calorimetry (DSC). Blends containing different nylon 11 contents ranging from 20 to 80 wt.% with or without INT-WS2 were prepared by melt mixing. Evaluation of their morphology with high-resolution SEM imaging proved that the incorporation of inorganic nanotubes into the immiscible PLLA/nylon 11 mixtures led to an improvement in the dispersibility of the nylon 11 phase, a reduction in its average domain size and, consequently, an increase in its interfacial area. The crystallization temperatures of these PLLA/nylon 11-INT blends were influenced by the cooling rate and composition. In particular, the DSC results appear to demonstrate that the 1D-TMDCs WS2 within the PLLA/nylon 11-INT blend nanocomposites initiated nucleation in both polymeric components, with the effect being more pronounced for PLLA. Moreover, the nucleation activity and activation energy were calculated to support these findings. The nucleation effect of INT-WS2, which influences the melting behaviour of PLLA, is highly important, particularly when evaluating polymer crystallinity. This study opens up new perspectives for the development of advanced PLA-based nanomaterials that show great potential for ecological and biomedical applications.
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Affiliation(s)
- Mohammed Naffakh
- Escuela Técnica Superior de Ingenieros Industriales, Universidad Politécnica de Madrid (ETSII-UPM), José Gutiérrez Abascal 2, 28006 Madrid, Spain
| | - Peter S. Shuttleworth
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain;
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3
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Kumari S, Chouhan A, Sharma OP, Tawfik SA, Tran K, Spencer MJS, Bhargava SK, Walia S, Ray A, Khatri OP. Surface Functionalization of WS 2 Nanosheets with Alkyl Chains for Enhancement of Dispersion Stability and Tribological Properties. ACS APPLIED MATERIALS & INTERFACES 2022; 14:1334-1346. [PMID: 34941265 DOI: 10.1021/acsami.1c17162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Tungsten disulfide (WS2) exhibits intriguing tribological properties and has been explored as an excellent lubricious material in thin-film and solid lubricants. However, the poor dispersibility of WS2 has been a major challenge for its utilization in liquid lubricant applications. Herein, a top-down integrated approach is presented to synthesize oxygenated WS2 (WS2-O) nanosheets via strong acid-mediated oxidation and ultrasound-assisted exfoliation. The ultrathin sheets of WS2-O, comprising 4-7 molecular lamellae, exhibit oxygen/hydroxyl functionalities. The organosilanes having variable surface-active leaving groups (chloro and ethoxy) are covalently grafted, targeting the hydroxyl/oxygen functionalities on the surface of WS2-O nanosheets. The grafting of organosilanes is governed by the reactivity of chloro and ethoxy leaving groups. The DFT calculations further support the covalent interaction between the WS2-O nanosheets and organosilanes. The alkyl chain-functionalized WS2-O nanosheets displayed excellent dispersibility in mineral lube base oil. A minute dose of chemically functionalized-WS2 (0.2 mg.mL-1) notably enhanced the tribological properties of mineral lube oil by reducing the friction coefficient (52%) and wear volume (79%) for a steel tribopair. Raman analysis of worn surfaces revealed WS2-derived lubricious thin film formation. The improved tribological properties are attributed to ultralow thickness, stable dispersion, and low shear strength of chemically functionalized WS2 nanosheets, along with protective thin film formation over the contact interfaces of a steel tribopair. The present work opens a new avenue toward exploiting low-dimensional nanosheets for minimizing energy losses due to high friction.
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Affiliation(s)
- Sangita Kumari
- CSIR-Indian Institute of Petroleum, Dehradun 248005, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
| | - Ajay Chouhan
- CSIR-Indian Institute of Petroleum, Dehradun 248005, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Om P Sharma
- CSIR-Indian Institute of Petroleum, Dehradun 248005, India
| | - Sherif Abdulkader Tawfik
- ARC Centre of Excellence in Future Low-Energy Electronics Technologies and School of Science, RMIT University, GPO Box 2476, Melbourne Victoria 3001, Australia
| | - Kevin Tran
- ARC Centre of Excellence in Future Low-Energy Electronics Technologies and School of Science, RMIT University, GPO Box 2476, Melbourne Victoria 3001, Australia
| | - Michelle J S Spencer
- ARC Centre of Excellence in Future Low-Energy Electronics Technologies and School of Science, RMIT University, GPO Box 2476, Melbourne Victoria 3001, Australia
| | - Suresh K Bhargava
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Applied Sciences, RMIT University, Melbourne, VIC 3001, Australia
| | - Sumeet Walia
- School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
| | - Anjan Ray
- CSIR-Indian Institute of Petroleum, Dehradun 248005, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Om P Khatri
- CSIR-Indian Institute of Petroleum, Dehradun 248005, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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4
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Geometry-controlled carbon nanostructures as effective drug delivery carriers for MAO enzyme inhibitors: A DFT study. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116857] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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5
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Naffakh M. Biopolymer Nanocomposite Materials Based on Poly(L-lactic Acid) and Inorganic Fullerene-like WS 2 Nanoparticles. Polymers (Basel) 2021; 13:2947. [PMID: 34502987 PMCID: PMC8434272 DOI: 10.3390/polym13172947] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 08/28/2021] [Accepted: 08/29/2021] [Indexed: 01/05/2023] Open
Abstract
In the current study, inorganic fullerene (IF)-like tungsten disulphide (WS2) nanoparticles from layered transition metal dichalcogenides (TMDCs) were introduced into a poly(L-lactic acid) (PLLA) polymer matrix to generate novel bionanocomposite materials through an advantageous melt-processing route. The effectiveness of employing IF-WS2 on the morphology and property enhancement of the resulting hybrid nanocomposites was evaluated. The non-isothermal melt-crystallization and melting measurements revealed that the crystallization and melting temperature as well as the crystallinity of PLLA were controlled by the cooling rate and composition. The crystallization behaviour and kinetics were examined by using the Lui model. Moreover, the nucleating effect of IF-WS2 was investigated in terms of Gutzow and Dobreva approaches. It was discovered that the incorporation of increasing IF-WS2 contents led to a progressive acceleration of the crystallization rate of PLLA. The morphology and kinetic data demonstrate the high performance of these novel nanocomposites for industrial applications.
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Affiliation(s)
- Mohammed Naffakh
- Escuela Técnica Superior de Ingenieros Industriales, Universidad Politécnica de Madrid (ETSII-UPM), José Gutiérrez Abascal 2, 28006 Madrid, Spain
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6
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Wang Y, Wan K, Pan F, Zhu X, Jiang Y, Wang H, Chen Y, Shi X, Liu M. Bamboo-like π-Nanotubes with Tunable Helicity and Circularly Polarized Luminescence. Angew Chem Int Ed Engl 2021; 60:16615-16621. [PMID: 33960094 DOI: 10.1002/anie.202104843] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Indexed: 01/02/2023]
Abstract
We report the fabrication of an exotic bamboo-like π-nanotube via the hierarchical self-assembly of a dipeptide-substituted naphthalenediimide gelator with tunable helicity and circularly polarized luminescence (CPL). It was found that in the presence of trifluoroacetic acid (TFA) the gelator molecules self-assembled into a bamboo-like π-nanotube, which is composed of truncated nanocones and CPL active. When defining the diameter ratio of the lower to upper edge of each nanocone as a parameter to express the helicity of different nanotubes, it was found that both the helicity and CPL of these nanotubes can be adjusted by the amount of TFA. Moreover, the helicity of the nanotube can be conveyed to the achiral quantum dots (QDs) and produce a hybrid nanotube/QDs CPL active materials with adjustable dissymmetry factor. This work finds a new type self-assembled bamboo-like π-nanotube and unveils their helicity and CPL control.
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Affiliation(s)
- Yuan Wang
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Colloid Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Kaiwei Wan
- University of Chinese Academy of Sciences, Beijing, 100049, China.,Laboratory of Theoretical and Computational Nanoscience, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing, 100190, P. R. China
| | - Fei Pan
- Laboratory of Theoretical and Computational Nanoscience, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing, 100190, P. R. China.,Institute of Solid Mechanics, Beihang University, Beijing, 100191, China
| | - Xuefeng Zhu
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Colloid Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Yuqian Jiang
- Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing, 100190, P. R. China
| | - Hui Wang
- Laboratory of Theoretical and Computational Nanoscience, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing, 100190, P. R. China
| | - Yuli Chen
- Institute of Solid Mechanics, Beihang University, Beijing, 100191, China
| | - Xinghua Shi
- University of Chinese Academy of Sciences, Beijing, 100049, China.,Laboratory of Theoretical and Computational Nanoscience, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing, 100190, P. R. China
| | - Minghua Liu
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory of Colloid Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, China
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7
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Wang Y, Wan K, Pan F, Zhu X, Jiang Y, Wang H, Chen Y, Shi X, Liu M. Bamboo‐like π‐Nanotubes with Tunable Helicity and Circularly Polarized Luminescence. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104843] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Yuan Wang
- Beijing National Laboratory for Molecular Science CAS Key Laboratory of Colloid Interface and Chemical Thermodynamics Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Kaiwei Wan
- University of Chinese Academy of Sciences Beijing 100049 China
- Laboratory of Theoretical and Computational Nanoscience CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology (NCNST) Beijing 100190 P. R. China
| | - Fei Pan
- Laboratory of Theoretical and Computational Nanoscience CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology (NCNST) Beijing 100190 P. R. China
- Institute of Solid Mechanics Beihang University Beijing 100191 China
| | - Xuefeng Zhu
- Beijing National Laboratory for Molecular Science CAS Key Laboratory of Colloid Interface and Chemical Thermodynamics Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Yuqian Jiang
- Laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology (NCNST) Beijing 100190 P. R. China
| | - Hui Wang
- Laboratory of Theoretical and Computational Nanoscience CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology (NCNST) Beijing 100190 P. R. China
| | - Yuli Chen
- Institute of Solid Mechanics Beihang University Beijing 100191 China
| | - Xinghua Shi
- University of Chinese Academy of Sciences Beijing 100049 China
- Laboratory of Theoretical and Computational Nanoscience CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology (NCNST) Beijing 100190 P. R. China
| | - Minghua Liu
- Beijing National Laboratory for Molecular Science CAS Key Laboratory of Colloid Interface and Chemical Thermodynamics Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 China
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8
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Nanocomposite Materials Based on TMDCs WS 2 Modified Poly(l-Lactic Acid)/Poly(Vinylidene Fluoride) Polymer Blends. Polymers (Basel) 2021; 13:polym13132179. [PMID: 34209153 PMCID: PMC8272141 DOI: 10.3390/polym13132179] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 06/27/2021] [Accepted: 06/28/2021] [Indexed: 11/16/2022] Open
Abstract
Novel multifunctional biopolymer blend nanocomposites composed of poly(vinylidene fluoride)(PVDF) and tungsten disulfide nanotubes (INT-WS2) that are layered transition metal dichalcogenides (TMDCs) were easily prepared by applying an economical, scalable, and versatile melt processing route. Furthermore, their synergistic effect to enhance the properties of poly(L-lactic acid) (PLLA) matrix was investigated. From morphological analysis, it was shown that the incorporation of 1D (INT)-WS2 into the immiscible PLLA/PVDF mixtures (weight ratios: 80/20, 60/40, 40/60, and 20/80) led to an improvement in the dispersibility of the PVDF phase, a reduction in its average domain size, and consequently a larger interfacial area. In addition, the nanoparticles INT-WS2 can act as effective nucleating agents and reinforcing fillers in PLLA/PVDF blends, and as such, greatly improve their thermal and dynamic-mechanical properties. The improvements are more pronounced in the ternary blend nanocomposites with the lowest PVDF content, likely due to a synergistic effect of both highly crystalline PVDF and 1D-TMDCs nano-additives on the matrix performance. Considering the promising properties of the developed materials, the inexpensive synthetic process, and the extraordinary properties of environmentally friendly and biocompatibe 1D-TMDCs WS2, this work may open up opportunities to produce new PLLA/PVDF hybrid nanocomposites that show great potential for biomedical applications.
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9
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Tanwar S, Arya A, Gaur A, Sharma AL. Transition metal dichalcogenide (TMDs) electrodes for supercapacitors: a comprehensive review. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2021; 33:303002. [PMID: 33892487 DOI: 10.1088/1361-648x/abfb3c] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 04/23/2021] [Indexed: 06/12/2023]
Abstract
As globally, the main focus of the researchers is to develop novel electrode materials that exhibit high energy and power density for efficient performance energy storage devices. This review covers the up-to-date progress achieved in transition metal dichalcogenides (TMDs) (e.g. MoS2, WS2, MoSe2,and WSe2) as electrode material for supercapacitors (SCs). The TMDs have remarkable properties like large surface area, high electrical conductivity with variable oxidation states. These properties enable the TMDs as the most promising candidates to store electrical energy via hybrid charge storage mechanisms. Consequently, this review article provides a detailed study of TMDs structure, properties, and evolution. The characteristics technique and electrochemical performances of all the efficient TMDs are highlighted meticulously. In brief, the present review article shines a light on the structural and electrochemical properties of TMD electrodes. Furthermore, the latest fabricated TMDs based symmetric/asymmetric SCs have also been reported.
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Affiliation(s)
- Shweta Tanwar
- Department of Physics, Central University of Punjab, Bathinda-151401, Punjab, India
| | - Anil Arya
- Department of Physics, Central University of Punjab, Bathinda-151401, Punjab, India
| | - Anurag Gaur
- Department of Physics, National Institute of Technology, Kurukshetra-136119, Haryana, India
| | - A L Sharma
- Department of Physics, Central University of Punjab, Bathinda-151401, Punjab, India
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10
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Yin J, Jin J, Lin H, Yin Z, Li J, Lu M, Guo L, Xi P, Tang Y, Yan C. Optimized Metal Chalcogenides for Boosting Water Splitting. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:1903070. [PMID: 32440471 PMCID: PMC7237848 DOI: 10.1002/advs.201903070] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 01/16/2020] [Indexed: 05/28/2023]
Abstract
Electrocatalytic water splitting (2H2O → 2H2 + O2) is a very promising avenue to effectively and environmentally friendly produce highly pure hydrogen (H2) and oxygen (O2) at a large scale. Different materials have been developed to enhance the efficiency for water splitting. Among them, chalcogenides with unique atomic arrangement and high electronic transport show interesting catalytic properties in various electrochemical reactions, such as the hydrogen evolution reaction, oxygen evolution reaction, and overall water splitting, while the control of their morphology and structure is of vital importance to their catalytic performance. Herein, the general synthetic methods are summarized to prepare metal chalcogenides and different strategies are designed to improve their catalytic performance for water splitting. The remaining challenges in the research and development of metal chalcogenides and possible directions for future research are also summarized.
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Affiliation(s)
- Jie Yin
- State Key Laboratory of Applied Organic ChemistryKey Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu ProvinceCollege of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou730000China
- Department of ChemistryBrown UniversityProvidenceRI02912USA
| | - Jing Jin
- State Key Laboratory of Applied Organic ChemistryKey Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu ProvinceCollege of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou730000China
| | - Honghong Lin
- Department of ChemistryBrown UniversityProvidenceRI02912USA
| | - Zhouyang Yin
- Department of ChemistryBrown UniversityProvidenceRI02912USA
| | - Jianyi Li
- State Key Laboratory of Applied Organic ChemistryKey Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu ProvinceCollege of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou730000China
| | - Min Lu
- State Key Laboratory of Applied Organic ChemistryKey Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu ProvinceCollege of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou730000China
| | - Linchuan Guo
- State Key Laboratory of Applied Organic ChemistryKey Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu ProvinceCollege of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou730000China
| | - Pinxian Xi
- State Key Laboratory of Applied Organic ChemistryKey Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu ProvinceCollege of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou730000China
| | - Yu Tang
- State Key Laboratory of Applied Organic ChemistryKey Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu ProvinceCollege of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou730000China
| | - Chun‐Hua Yan
- State Key Laboratory of Applied Organic ChemistryKey Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu ProvinceCollege of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou730000China
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11
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Wang Z, Yu R. Hollow Micro/Nanostructured Ceria-Based Materials: Synthetic Strategies and Versatile Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1800592. [PMID: 30276863 DOI: 10.1002/adma.201800592] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Revised: 07/04/2018] [Indexed: 06/08/2023]
Abstract
Hollow micro/nanostructured CeO2 -based materials (HMNCMs) have triggered intensive attention as a result of their unique structural traits, which arise from their hollowness and the fascinating physicochemical properties of CeO2 . This attention has led to widespread applications with improved performance. Herein, a comprehensive overview of methodologies applied for the synthesis of various hollow structures, such as hollow spheres, nanotubes, nanoboxes, and multishelled hollow spheres, is provided. The synthetic strategies toward CeO2 hollow structures are classified into three major categories: 1) well-established template-assisted (hard-, soft-, and in situ template) methods; 2) newly emerging self-template approaches, including selective etching, Ostwald ripening, the Kirkendall effect, galvanic replacement, etc.; 3) bottom-up self-organized formation synthesis (namely, oriented attachment and self-deformation). Their underlying mechanisms are concisely described and discussed in detail, the differences and similarities of which are compared transversely and longitudinally. Niche applications of HMNCMs in a wide range of fields including catalysis, energy conversion and storage, sensors, absorbents, photoluminescence, and biomedicines are reviewed. Finally, an outlook of future opportunities and challenges in the synthesis and application of CeO2 -based hollow structures is also presented.
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Affiliation(s)
- Zumin Wang
- Department of Physical Chemistry, University of Science and Technology Beijing, Beijing, 100083, P. R. China
| | - Ranbo Yu
- Department of Physical Chemistry, University of Science and Technology Beijing, Beijing, 100083, P. R. China
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12
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Wang L, Luo T, Li W, Wei H, Chen X, Cao B. Copper submicrospheres induced by pulsed laser-irradiation with enhanced tribology properties. NEW J CHEM 2019. [DOI: 10.1039/c9nj03199e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Copper submicrospheres prepared by one-step laser irradiation showed excellent friction reduction and self-repairing effects as lubricant additives.
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Affiliation(s)
- Li Wang
- School of Material Science and Engineering
- University of Jinan
- Jinan 250022
- China
| | - Ting Luo
- School of Material Science and Engineering
- University of Jinan
- Jinan 250022
- China
| | - Wei Li
- School of Material Science and Engineering
- University of Jinan
- Jinan 250022
- China
| | - Haoming Wei
- School of Physics and Physical Engineering
- Shandong Provincial Key Laboratory of Laser Polarization and Information Technology
- Qufu Normal University
- Qufu 273165
- China
| | - Xinchun Chen
- State Key Laboratory of Tribology
- Department of Mechanical Engineering
- Tsinghua University
- Beijing 100084
- China
| | - Bingqiang Cao
- School of Material Science and Engineering
- University of Jinan
- Jinan 250022
- China
- School of Physics and Physical Engineering
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13
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Shen B, Xie H, Gu L, Chen X, Bai Y, Zhu Z, Wei F. Direct Chirality Recognition of Single-Crystalline and Single-Walled Transition Metal Oxide Nanotubes on Carbon Nanotube Templates. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1803368. [PMID: 30216568 DOI: 10.1002/adma.201803368] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Revised: 08/23/2018] [Indexed: 06/08/2023]
Abstract
Chirality is a significant structural feature for chemistry, biology, physics, and materials science, and especially determines the electrical, mechanical, and optical properties of diverse tubular structures, such as carbon nanotubes (CNTs). To recognize the chirality of nanotubes, templates are introduced as potential tools to obtain crystalline samples with visible chiral fringes under electron microscopes. However, few efforts show optimistic results, and new understanding is desired to control the sample quality with CNT templates. Here, a synthesis strategy of single-crystalline molybdenum trioxide (α-MoO3 ) nanotubes (MONTs) on CNT surfaces is reported to build a 1D van der Waals (vdW) heterostructure. The chirality of the MONTs can be directly "seen" and their structural selectivity is revealed. First, the centralized distribution of the chiral angles of the MONTs indicates a preferential orientation due to the anisotropic bending rigidity of the 2D layers. Then, the interlayer mismatching rejects the radial stacking of α-MoO3 to maintain the single-walled nature. These results provide a spontaneous strategy for the efficient recognition and control of chirality, and open up a new avenue for CNT-based functional 1D vdW heterostructures.
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Affiliation(s)
- Boyuan Shen
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Huanhuan Xie
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Lin Gu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Xiao Chen
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Yunxiang Bai
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Zhenxing Zhu
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Fei Wei
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
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14
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Laloy J, Haguet H, Alpan L, Raichman D, Dogné JM, Lellouche JP. Impact of functional inorganic nanotubes f-INTs-WS 2 on hemolysis, platelet function and coagulation. NANO CONVERGENCE 2018; 5:31. [PMID: 30467733 PMCID: PMC6206311 DOI: 10.1186/s40580-018-0162-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 10/07/2018] [Indexed: 06/09/2023]
Abstract
Inorganic transition metal dichalcogenide nanostructures are interesting for several biomedical applications such as coating for medical devices (e.g. endodontic files, catheter stents) and reinforcement of scaffolds for tissue engineering. However, their impact on human blood is unknown. A unique nanomaterial surface-engineering chemical methodology was used to fabricate functional polyacidic polyCOOH inorganic nanotubes of tungsten disulfide towards covalent binding of any desired molecule/organic species via chemical activation/reactivity of this former polyCOOH shell. The impact of these nanotubes on hemolysis, platelet aggregation and blood coagulation has been assessed using spectrophotometric measurement, light transmission aggregometry and thrombin generation assays. The functionalized nanotubes do not induce hemolysis but decrease platelet aggregation and induce coagulation through intrinsic pathway activation. The functional nanotubes were found to be more thrombogenic than the non-functional ones, suggesting lower hemocompatibility and increased thrombotic risk with functionalized tungsten disulfide nanotubes. These functionalized nanotubes should be used with caution in blood-contacting devices.
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Affiliation(s)
- Julie Laloy
- Namur Nanosafety Centre, University of Namur, Rue de Bruxelles 61, 5000 Namur, Belgium
- Department of Pharmacy, NARILIS, University of Namur, Namur, Belgium
| | - Hélène Haguet
- Department of Pharmacy, NARILIS, University of Namur, Namur, Belgium
- Department of Haematology Laboratory, Université catholique de Louvain, CHU UCL Namur, NARILIS, Yvoir, Belgium
| | - Lutfiye Alpan
- Namur Nanosafety Centre, University of Namur, Rue de Bruxelles 61, 5000 Namur, Belgium
- Department of Pharmacy, NARILIS, University of Namur, Namur, Belgium
| | - Daniel Raichman
- Department of Chemistry & Institute of Nanotechnology & Advanced Materials (BINA), Bar-Ilan University, Max & Anna Web Street, 5290002 Ramat-Gan, Israel
| | - Jean-Michel Dogné
- Namur Nanosafety Centre, University of Namur, Rue de Bruxelles 61, 5000 Namur, Belgium
- Department of Pharmacy, NARILIS, University of Namur, Namur, Belgium
| | - Jean-Paul Lellouche
- Department of Chemistry & Institute of Nanotechnology & Advanced Materials (BINA), Bar-Ilan University, Max & Anna Web Street, 5290002 Ramat-Gan, Israel
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15
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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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16
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Bandura AV, Lukyanov SI, Evarestov RA. Temperature dependence of thermodynamic properties of MoS 2 monolayer and single-wall nanotubes: Application of the developed three-body force field. J Mol Graph Model 2018; 85:212-222. [PMID: 30227366 DOI: 10.1016/j.jmgm.2018.08.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 08/18/2018] [Accepted: 08/20/2018] [Indexed: 11/18/2022]
Abstract
MoS2 nanostructures, especially mono-, multilayer nanothin films as well as single- and multiwall nanotubes are rather interesting popular objects in nanomaterials chemistry. The thermodynamic properties of inorganic nanotubes, and the temperature dependence of their properties can be efficiently investigated by first-principles and molecular mechanics methods in the framework of harmonic approximation. At the same time, only thin single-wall nanotubes are available for the first-principles calculations. The classical mechanics is suitable to simulate very large atomic systems and their phonon frequencies, but developing sufficiently accurate force field is rather tedious work. Herein, we report the force field fitted to the experimental and first-principles data on the structure of 2H- and 3RMoS2 polytypes of bulk crystal, structure of monolayer and several bilayers, vibrational frequencies of 2HMoS2 bulk and monolayer, relative energetic stability of polytypes experimental and first-principles data, elastic constants, strain energy of a (12, 12) MoS2 nanotube. The thermodynamic functions and their temperature dependence for the armchair and zigzag nanotubes are calculated within the formalism of molecular mechanics using elaborated interatomic potential. The results of molecular mechanics and first-principles method application to the thinnest nanotubes are compared.
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Affiliation(s)
- Andrei V Bandura
- Quantum Chemistry Department, Saint Petersburg State University, 7/9 Universitetskaya Naberezhnaya, St. Petersburg, 199034, Russian Federation
| | - Sergey I Lukyanov
- Quantum Chemistry Department, Saint Petersburg State University, 7/9 Universitetskaya Naberezhnaya, St. Petersburg, 199034, Russian Federation.
| | - Robert A Evarestov
- Quantum Chemistry Department, Saint Petersburg State University, 7/9 Universitetskaya Naberezhnaya, St. Petersburg, 199034, Russian Federation
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17
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Samadi M, Sarikhani N, Zirak M, Zhang H, Zhang HL, Moshfegh AZ. Group 6 transition metal dichalcogenide nanomaterials: synthesis, applications and future perspectives. NANOSCALE HORIZONS 2018; 3:90-204. [PMID: 32254071 DOI: 10.1039/c7nh00137a] [Citation(s) in RCA: 127] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Group 6 transition metal dichalcogenides (G6-TMDs), most notably MoS2, MoSe2, MoTe2, WS2 and WSe2, constitute an important class of materials with a layered crystal structure. Various types of G6-TMD nanomaterials, such as nanosheets, nanotubes and quantum dot nano-objects and flower-like nanostructures, have been synthesized. High thermodynamic stability under ambient conditions, even in atomically thin form, made nanosheets of these inorganic semiconductors a valuable asset in the existing library of two-dimensional (2D) materials, along with the well-known semimetallic graphene and insulating hexagonal boron nitride. G6-TMDs generally possess an appropriate bandgap (1-2 eV) which is tunable by size and dimensionality and changes from indirect to direct in monolayer nanosheets, intriguing for (opto)electronic, sensing, and solar energy harvesting applications. Moreover, rich intercalation chemistry and abundance of catalytically active edge sites make them promising for fabrication of novel energy storage devices and advanced catalysts. In this review, we provide an overview on all aspects of the basic science, physicochemical properties and characterization techniques as well as all existing production methods and applications of G6-TMD nanomaterials in a comprehensive yet concise treatment. Particular emphasis is placed on establishing a linkage between the features of production methods and the specific needs of rapidly growing applications of G6-TMDs to develop a production-application selection guide. Based on this selection guide, a framework is suggested for future research on how to bridge existing knowledge gaps and improve current production methods towards technological application of G6-TMD nanomaterials.
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Affiliation(s)
- Morasae Samadi
- Department of Physics, Sharif University of Technology, Tehran 11155-9161, Iran.
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18
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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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Abstract
The experimental discovery of borospherene, the only non-carbon fullerene observed in nature, has generated a lot of interest in the scientific community and led to the theoretical prediction of various endohedrally and exohedrally decorated borospherene. We apply Minima Hopping Method (MHM), a global geometry optimization algorithm at the density functional level to check the stability of recently proposed exohedrally decorated borospherenes M6@B40 for (M = Li, Na, K, Rb, Be, Mg, Ca, Sr, Sc and Ti). By performing short MHM runs, we find that the proposed fullerene structures are not global minima. Our new lowest energy structures are significantly deformed and of much lower symmetry. These low energy structures spontaneously aggregate by forming chemical bonds when they are brought together. Therefore, it would be challenging to synthesize bulk materials made out of the theoretically postulated exohedrally decorated borospherenes such as B40M6 which might have technologically useful properties.
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20
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Nitti A, Pacini A, Pasini D. Chiral Nanotubes. NANOMATERIALS (BASEL, SWITZERLAND) 2017; 7:E167. [PMID: 28677640 PMCID: PMC5535233 DOI: 10.3390/nano7070167] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 06/22/2017] [Accepted: 06/28/2017] [Indexed: 01/01/2023]
Abstract
Organic nanotubes, as assembled nanospaces, in which to carry out host-guest chemistry, reversible binding of smaller species for transport, sensing, storage or chemical transformation purposes, are currently attracting substantial interest, both as biological ion channel mimics, or for addressing tailored material properties. Nature's materials and machinery are universally asymmetric, and, for chemical entities, controlled asymmetry comes from chirality. Together with carbon nanotubes, conformationally stable molecular building blocks and macrocycles have been used for the realization of organic nanotubes, by means of their assembly in the third dimension. In both cases, chiral properties have started to be fully exploited to date. In this paper, we review recent exciting developments in the synthesis and assembly of chiral nanotubes, and of their functional properties. This review will include examples of either molecule-based or macrocycle-based systems, and will try and rationalize the supramolecular interactions at play for the three-dimensional (3D) assembly of the nanoscale architectures.
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Affiliation(s)
- Andrea Nitti
- Department of Chemistry, University of Pavia, Viale Taramelli, 12-27100 Pavia, Italy.
| | - Aurora Pacini
- Department of Chemistry, University of Pavia, Viale Taramelli, 12-27100 Pavia, Italy.
- INSTM Research Unit, University of Pavia, Viale Taramelli, 12-27100 Pavia, Italy.
| | - Dario Pasini
- Department of Chemistry, University of Pavia, Viale Taramelli, 12-27100 Pavia, Italy.
- INSTM Research Unit, University of Pavia, Viale Taramelli, 12-27100 Pavia, Italy.
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21
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Farshid B, Lalwani G, Mohammadi MS, Simonsen J, Sitharaman B. Boron nitride nanotubes and nanoplatelets as reinforcing agents of polymeric matrices for bone tissue engineering. J Biomed Mater Res B Appl Biomater 2017; 105:406-419. [PMID: 26526153 PMCID: PMC4854812 DOI: 10.1002/jbm.b.33565] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2015] [Revised: 09/17/2015] [Accepted: 10/14/2015] [Indexed: 11/07/2022]
Abstract
This study investigates the mechanical properties and in vitro cytotoxicity of one- and two-dimensional boron nitride nanomaterials-reinforced biodegradable polymeric nanocomposites. Poly(propylene fumarate) (PPF) nanocomposites were fabricated using crosslinking agent N-vinyl pyrrolidone and inorganic nanomaterials: boron nitride nanotubes (BNNTs) and boron nitride nanoplatelets (BNNPs) dispersed at 0.2 wt % in the polymeric matrix. The incorporation of BNNPs and BNNTs resulted in a ∼38 and ∼15% increase in compressive (Young's) modulus, and ∼31 and ∼6% increase in compressive yield strength compared to PPF control, respectively. The nanocomposites showed a time-dependent increased protein adsorption for collagen I protein. The cytotoxicity evaluation of aqueous BNNT and BNNP dispersions (at 1-100 μg/mL concentrations) using murine MC3T3 preosteoblast cells showed ∼73-99% viability. The cytotoxicity evaluation of media extracts of nanocomposites before crosslinking, after crosslinking, and upon degradation (using 1×-100× dilutions) showed dose-dependent cytotoxicity responses. Crosslinked nanocomposites showed excellent (∼79-100%) cell viability, cellular attachment (∼57-67%), and spreading similar to cells grown on the surface of tissue culture polystyrene control. The media extracts of degradation products showed a dose-dependent cytotoxicity. The favorable cytocompatibility results in combination with improved mechanical properties of BNNT and BNNP nanocomposites opens new avenues for further in vitro and in vivo safety and efficacy studies towards bone tissue engineering applications. © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 406-419, 2017.
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Affiliation(s)
- Behzad Farshid
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, New York 11794, USA
- Department of Materials Science and Engineering, Stony Brook University, Stony Brook, New York 11794, USA
| | - Gaurav Lalwani
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, New York 11794, USA
| | - Meisam Shir Mohammadi
- Department of Wood Science and Engineering, Oregon State University, Corvallis, Oregon 97331, USA
| | - John Simonsen
- Department of Wood Science and Engineering, Oregon State University, Corvallis, Oregon 97331, USA
| | - Balaji Sitharaman
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, New York 11794, USA
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22
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Abstract
Sorting of single-wall carbon nanotubes by their electronic and atomic structures in liquid phases is reviewed in this chapter. We first introduce the sorting problem, and then provide an overview of several sorting methodologies, following roughly the chronological order of their development over the past 15 years or so. Major methods discussed include ion-exchange chromatography, density-gradient ultracentrifugation, selective extraction in organic solvents, gel chromatography, and aqueous two-phase extraction. A main focus of the review is on the common mechanisms underlining all sorting processes. We propose that differences in solvation among different nanotube species are the ultimate driving force of sorting, and we corroborate this proposal by presenting analysis on how the differences are realized in electronic-structure-based sorting and atomic-structure-based sorting. In the end, we offer some suggestions on future directions that may grow out of carbon nanotube sorting. In particular, the prospect of expanding the function of DNA/carbon nanotube hybrid to control inter-particle interactions both inside and outside the nanotube is discussed.
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Affiliation(s)
- Ming Zheng
- Materials Science and Engineering Division, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD, 20899, USA.
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23
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Rodríguez-Vázquez N, Amorín M, Granja JR. Recent advances in controlling the internal and external properties of self-assembling cyclic peptide nanotubes and dimers. Org Biomol Chem 2017; 15:4490-4505. [DOI: 10.1039/c7ob00351j] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Tuning the internal and external properties of self-assembling cyclic peptide nanotubes.
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Affiliation(s)
- N. Rodríguez-Vázquez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - M. Amorín
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - J. R. Granja
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
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24
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Appel JH, Li DO, Podlevsky JD, Debnath A, Green AA, Wang QH, Chae J. Low Cytotoxicity and Genotoxicity of Two-Dimensional MoS2 and WS2. ACS Biomater Sci Eng 2016; 2:361-367. [DOI: 10.1021/acsbiomaterials.5b00467] [Citation(s) in RCA: 141] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jennie H. Appel
- School
of Electrical, Computer, and Energy Engineering, ‡Materials Science
and Engineering, School for Engineering of Matter, Transport and Energy, §School of Molecular
Sciences, and ∥Center for Molecular Design and Biomimetics, The Biodesign Institute, Arizona State University, Tempe, Arizona 85287, United States
| | - Duo O. Li
- School
of Electrical, Computer, and Energy Engineering, ‡Materials Science
and Engineering, School for Engineering of Matter, Transport and Energy, §School of Molecular
Sciences, and ∥Center for Molecular Design and Biomimetics, The Biodesign Institute, Arizona State University, Tempe, Arizona 85287, United States
| | - Joshua D. Podlevsky
- School
of Electrical, Computer, and Energy Engineering, ‡Materials Science
and Engineering, School for Engineering of Matter, Transport and Energy, §School of Molecular
Sciences, and ∥Center for Molecular Design and Biomimetics, The Biodesign Institute, Arizona State University, Tempe, Arizona 85287, United States
| | - Abhishek Debnath
- School
of Electrical, Computer, and Energy Engineering, ‡Materials Science
and Engineering, School for Engineering of Matter, Transport and Energy, §School of Molecular
Sciences, and ∥Center for Molecular Design and Biomimetics, The Biodesign Institute, Arizona State University, Tempe, Arizona 85287, United States
| | - Alexander A. Green
- School
of Electrical, Computer, and Energy Engineering, ‡Materials Science
and Engineering, School for Engineering of Matter, Transport and Energy, §School of Molecular
Sciences, and ∥Center for Molecular Design and Biomimetics, The Biodesign Institute, Arizona State University, Tempe, Arizona 85287, United States
| | - Qing Hua Wang
- School
of Electrical, Computer, and Energy Engineering, ‡Materials Science
and Engineering, School for Engineering of Matter, Transport and Energy, §School of Molecular
Sciences, and ∥Center for Molecular Design and Biomimetics, The Biodesign Institute, Arizona State University, Tempe, Arizona 85287, United States
| | - Junseok Chae
- School
of Electrical, Computer, and Energy Engineering, ‡Materials Science
and Engineering, School for Engineering of Matter, Transport and Energy, §School of Molecular
Sciences, and ∥Center for Molecular Design and Biomimetics, The Biodesign Institute, Arizona State University, Tempe, Arizona 85287, United States
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25
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Guo B, Yu K, Li H, Song H, Zhang Y, Lei X, Fu H, Tan Y, Zhu Z. Hollow Structured Micro/Nano MoS₂ Spheres for High Electrocatalytic Activity Hydrogen Evolution Reaction. ACS APPLIED MATERIALS & INTERFACES 2016; 8:5517-5525. [PMID: 26840506 DOI: 10.1021/acsami.5b10252] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Molybdenum disulfide (MoS2) has attracted extensive attention as a non-noble metal electrocatalyst for hydrogen evolution reaction (HER). Controlling the skeleton structure at the nanoscale is paramount to increase the number of active sites at the surface. However, hydrothermal synthesis favors the presence of the basal plane, limiting the efficiency of catalytic reaction. In this work, perfect hollow MoS2 microspheres capped by hollow MoS2 nanospheres (hH-MoS2) were obtained for the first time, which creates an opportunity for improving the HER electrocatalytic performance. Benefiting from the controllable hollow skeleton structure and large exposed edge sites, high-efficiency HER activity was obtained for stacked MoS2 thin shells with a mild degree of disorder, proving the presence of rich active sites and the validity of the combined structure. In general, the obtained hollow micro/nano MoS2 nanomaterial exhibits optimized electrocatalytic activity for HER with onset overpotential as low as 112 mV, low Tafel slope of 74 mV decade(-1), high current density of 10 mA cm(-2) at η = 214 mV, and high TOF of 0.11 H2 s(-1) per active site at η = 200 mV.
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Affiliation(s)
- Bangjun Guo
- Key Laboratory of Polar Materials and Devices (Ministry of Education of China), Department of Electronic Engineering, East China Normal University , Shanghai 200241, People's Republic of China
| | - Ke Yu
- Key Laboratory of Polar Materials and Devices (Ministry of Education of China), Department of Electronic Engineering, East China Normal University , Shanghai 200241, People's Republic of China
| | - Honglin Li
- Key Laboratory of Polar Materials and Devices (Ministry of Education of China), Department of Electronic Engineering, East China Normal University , Shanghai 200241, People's Republic of China
| | - Haili Song
- Key Laboratory of Polar Materials and Devices (Ministry of Education of China), Department of Electronic Engineering, East China Normal University , Shanghai 200241, People's Republic of China
| | - Yuanyuan Zhang
- Key Laboratory of Polar Materials and Devices (Ministry of Education of China), Department of Electronic Engineering, East China Normal University , Shanghai 200241, People's Republic of China
| | - Xiang Lei
- Key Laboratory of Polar Materials and Devices (Ministry of Education of China), Department of Electronic Engineering, East China Normal University , Shanghai 200241, People's Republic of China
| | - Hao Fu
- Key Laboratory of Polar Materials and Devices (Ministry of Education of China), Department of Electronic Engineering, East China Normal University , Shanghai 200241, People's Republic of China
| | - Yinghua Tan
- Key Laboratory of Polar Materials and Devices (Ministry of Education of China), Department of Electronic Engineering, East China Normal University , Shanghai 200241, People's Republic of China
| | - Ziqiang Zhu
- Key Laboratory of Polar Materials and Devices (Ministry of Education of China), Department of Electronic Engineering, East China Normal University , Shanghai 200241, People's Republic of China
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26
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Liu Z, Zhang L, Wang R, Poyraz S, Cook J, Bozack MJ, Das S, Zhang X, Hu L. Ultrafast Microwave Nano-manufacturing of Fullerene-Like Metal Chalcogenides. Sci Rep 2016; 6:22503. [PMID: 26931353 PMCID: PMC4773880 DOI: 10.1038/srep22503] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Accepted: 02/16/2016] [Indexed: 01/24/2023] Open
Abstract
Metal Chalcogenides (MCs) have emerged as an extremely important class of nanomaterials with applications ranging from lubrication to energy storage devices. Here we report our discovery of a universal, ultrafast (60 seconds), energy-efficient, and facile technique of synthesizing MC nanoparticles and nanostructures, using microwave-assisted heating. A suitable combination of chemicals was selected for reactions on Polypyrrole nanofibers (PPy-NF) in presence of microwave irradiation. The PPy-NF serves as the conducting medium to absorb microwave energy to heat the chemicals that provide the metal and the chalcogenide constituents separately. The MCs are formed as nanoparticles that eventually undergo a size-dependent, multi-stage aggregation process to yield different kinds of MC nanostructures. Most importantly, this is a single-step metal chalcogenide formation process that is much faster and much more energy-efficient than all the other existing methods and can be universally employed to produce different kinds of MCs (e.g., MoS2, and WS2).
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Affiliation(s)
- Zhen Liu
- Department of Chemical Engineering, Auburn University, Auburn, AL 36849, USA.,Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742-4111, USA
| | - Lin Zhang
- Materials Research and Education Center, Auburn University, Auburn, AL 36849, USA
| | - Ruigang Wang
- Department of Chemistry, Youngstown State University, Youngstown, OH 44555, USA
| | - Selcuk Poyraz
- Department of Chemical Engineering, Auburn University, Auburn, AL 36849, USA
| | - Jonathan Cook
- Department of Chemical Engineering, Auburn University, Auburn, AL 36849, USA
| | - Michael J Bozack
- Surface Science Laboratory, Department of Physics, Auburn University, Auburn, AL 36849, USA
| | - Siddhartha Das
- Department of Mechanical Engineering, University of Maryland, College Park, MD 20742-4111, USA
| | - Xinyu Zhang
- Department of Chemical Engineering, Auburn University, Auburn, AL 36849, USA
| | - Liangbing Hu
- Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742-4111, USA
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27
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Laraib I, Karthikeyan J, Murugan P. First principles modeling of Mo6S9 nanowires via condensation of Mo4S6 clusters and the effect of iodine doping on structural and electronic properties. Phys Chem Chem Phys 2016; 18:5471-6. [PMID: 26863389 DOI: 10.1039/c5cp06085k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
By employing first principles DFT calculations, we propose a new stable model for Mo6S9 nanowires (NWs) obtained by condensing tetrahedral Mo4S6 clusters rather than octahedral Mo6S8 clusters, which are known as magic clusters in the Mo-S polyhedral cluster family. The pristine NW is found to be metallic and its local structure and physical properties can be tuned by doping of iodine atoms. This doping increases the number of Mo-Mo bonds in the NW, thus, Mo4 tetrahedra are initially fused to the Mo6 octahedron, and then, to the Mo8 dodecahedron. Further, a close correlation among the Mo-Mo bonding in the local structure, mechanical and electronic properties, is observed from our study. Finally, the stability of the pristine and iodine doped Mo8S12-xIx NW structures obtained from condensation of Mo4 tetrahedra are found to be quite comparable with that of already reported Mo6S9-xIx NWs with Mo6 octahedra as building blocks.
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Affiliation(s)
- Iflah Laraib
- Functional Materials Division, CSIR - Central Electrochemical Research Institute, Karaikudi-630 003, Tamil Nadu, India.
| | - J Karthikeyan
- Functional Materials Division, CSIR - Central Electrochemical Research Institute, Karaikudi-630 003, Tamil Nadu, India. and Academy of Scientific and Innovative Research, CSIR - Central Electrochemical Research Institute, Karaikudi-630 003, Tamil Nadu, India
| | - P Murugan
- Functional Materials Division, CSIR - Central Electrochemical Research Institute, Karaikudi-630 003, Tamil Nadu, India. and Academy of Scientific and Innovative Research, CSIR - Central Electrochemical Research Institute, Karaikudi-630 003, Tamil Nadu, India
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28
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Li ZW, Zhu YL, Lu ZY, Sun ZY. Supracolloidal fullerene-like cages: design principles and formation mechanisms. Phys Chem Chem Phys 2016; 18:32534-32540. [DOI: 10.1039/c6cp05556g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
A vast collection of fascinating supracolloidal fullerene-like cages has been achievedviathe self-assembly of soft three-patch particles designed to mimic non-planar sp2hybridized carbon atoms in fullerenes, through the rational design of patch configuration, size, and interaction.
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Affiliation(s)
- Zhan-Wei Li
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - You-Liang Zhu
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Zhong-Yuan Lu
- State Key Laboratory of Supramolecular Structure and Materials
- Institute of Theoretical Chemistry
- Jilin University
- Changchun 130023
- China
| | - Zhao-Yan Sun
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
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29
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Naffakh M, Díez-Pascual AM, Marco C. Polymer blend nanocomposites based on poly(l-lactic acid), polypropylene and WS2 inorganic nanotubes. RSC Adv 2016. [DOI: 10.1039/c6ra05803e] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The overall thermal and mechanical properties of PLLA/PPPP-g-MAH/INT-WS2 confirm the high-performance of these novel biopolymer blend nanocomposites, which opens new possibilities for use in biomedical applications.
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Affiliation(s)
- Mohammed Naffakh
- Escuela Técnica Superior de Ingenieros Industriales
- Universidad Politécnica de Madrid (ETSII-UPM)
- 28006 Madrid
- Spain
| | - Ana M. Díez-Pascual
- Departamento de Química Analítica
- Química Física e Ingeniería Química
- Facultad de Biología
- Ciencias Ambientales y Química
- Universidad de Alcalá
| | - Carlos Marco
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC)
- 28006 Madrid
- Spain
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30
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Asadi V, Jafari SH, Khonakdar HA, Häuβler L, Wagenknecht U. Incorporation of inorganic fullerene-like WS2 into poly(ethylene succinate) to prepare novel biodegradable nanocomposites: a study on isothermal and dynamic crystallization. RSC Adv 2016. [DOI: 10.1039/c5ra24898a] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Novel biodegradable nanocomposites based on PES and environmentally-friendly IF-WS2 were prepared with enhanced crystallization behavior in isothermal and non-isothermal modes.
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Affiliation(s)
- Vahid Asadi
- School of Chemical Engineering
- College of Engineering
- University of Tehran
- Tehran
- Iran
| | - Seyed Hassan Jafari
- School of Chemical Engineering
- College of Engineering
- University of Tehran
- Tehran
- Iran
| | - Hossein Ali Khonakdar
- Iran Polymer and Petrochemical Institute
- Tehran
- Iran
- Leibniz Institute of Polymer Research
- Dresden
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31
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Kwon OS, Lee D, Lee SP, Kang YG, Kim NC, Song SH. Enhancing the mechanical and thermal properties of boron nitride nanoplatelets/elastomer nanocomposites by latex mixing. RSC Adv 2016. [DOI: 10.1039/c6ra11356g] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Hexagonal boron nitride nanoplatelets (BNNPs) can serve as two-dimensional (2D) fillers for elastomer nanocomposites due to their excellent and intriguing mechanical and thermal properties.
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Affiliation(s)
- O.-Seok Kwon
- NEXEN Tire Corporation R&D Center
- Yangsan-Si
- Korea 626-230
| | - Dongju Lee
- Nuclear Materials Development Division
- Korea Atomic Energy Research Institute
- Daejeon
- Republic of Korea
| | - Seong Pil Lee
- NEXEN Tire Corporation R&D Center
- Yangsan-Si
- Korea 626-230
| | - Yong Gu Kang
- NEXEN Tire Corporation R&D Center
- Yangsan-Si
- Korea 626-230
| | - Nam Chul Kim
- Division of Advanced Materials Engineering
- Kongju National University
- Chungnam 330-717
- Republic of Korea
| | - Sung Ho Song
- Division of Advanced Materials Engineering
- Kongju National University
- Chungnam 330-717
- Republic of Korea
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32
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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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33
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Non-Isothermal Cold-Crystallization Behavior and Kinetics of Poly(l-Lactic Acid)/WS2 Inorganic Nanotube Nanocomposites. Polymers (Basel) 2015. [DOI: 10.3390/polym7111507] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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34
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Zhang N, Ma W, Wu T, Wang H, Han D, Niu L. Edge-rich MoS2 Naonosheets Rooting into Polyaniline Nanofibers as Effective Catalyst for Electrochemical Hydrogen Evolution. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.08.108] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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35
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Zhang T, Ma T, Li W. Preparation of Ultrahigh Molecular Weight Polyethylene/WS2Composites for Bulletproof Materials and Study on Their Bulletproof Mechanism. J MACROMOL SCI B 2015. [DOI: 10.1080/00222348.2015.1035689] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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36
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Zhang N, Gan S, Wu T, Ma W, Han D, Niu L. Growth Control of MoS2 Nanosheets on Carbon Cloth for Maximum Active Edges Exposed: An Excellent Hydrogen Evolution 3D Cathode. ACS APPLIED MATERIALS & INTERFACES 2015; 7:12193-12202. [PMID: 25980786 DOI: 10.1021/acsami.5b02586] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
To greatly improve the hydrogen evolution reaction (HER) performance, it is the key approach to expose as many active edges of MoS2 as possible. This target is the research hotspot and difficulty of MoS2 which is a promising HER catalyst. In this work, we realized the active-edges control of MoS2 nanosheets on carbon cloth (CC) by growth control during the synthesis procedure. Moreover, MoS2 nanosheets vertically grown on carbon cloth (MoS2⊥CC) was confirmed to be the best morphology with maximum active edges exposed. Multifactors structure control resulted in abundant active-edges exposure and effective electron delivery, thus excellent HER activity. This three-dimensional cathode, MoS2⊥CC, can reach a great current density of 200 mA/cm(2) at a small overpotential of 205 mV. The preeminent HER performance can rival the best MoS2-based catalyst ever reported.
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Affiliation(s)
- Nan Zhang
- †State Key Laboratory of Electroanalytical Chemistry, c/o Engineering Laboratory for Modern Analytical Techniques, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, China
- ‡University of the Chinese Academy of Sciences, Beijing 100039, China
| | - Shiyu Gan
- †State Key Laboratory of Electroanalytical Chemistry, c/o Engineering Laboratory for Modern Analytical Techniques, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, China
| | - Tongshun Wu
- †State Key Laboratory of Electroanalytical Chemistry, c/o Engineering Laboratory for Modern Analytical Techniques, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, China
| | - Weiguang Ma
- †State Key Laboratory of Electroanalytical Chemistry, c/o Engineering Laboratory for Modern Analytical Techniques, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, China
- ‡University of the Chinese Academy of Sciences, Beijing 100039, China
| | - Dongxue Han
- †State Key Laboratory of Electroanalytical Chemistry, c/o Engineering Laboratory for Modern Analytical Techniques, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, China
| | - Li Niu
- †State Key Laboratory of Electroanalytical Chemistry, c/o Engineering Laboratory for Modern Analytical Techniques, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, China
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37
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Sedova A, Ron R, Goldbart O, Elianov O, Yadgarov L, Kampf N, Rosentsveig R, Shumalinsky D, Lobik L, Shay B, Moshonov J, Wagner HD, Tenne R. Re-doped fullerene-like MoS2nanoparticles in relationship with soft lubrication. ACTA ACUST UNITED AC 2015. [DOI: 10.1680/nme.14.00020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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38
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Gong Q, Cheng L, Liu C, Zhang M, Feng Q, Ye H, Zeng M, Xie L, Liu Z, Li Y. Ultrathin MoS2(1–x)Se2x Alloy Nanoflakes For Electrocatalytic Hydrogen Evolution Reaction. ACS Catal 2015. [DOI: 10.1021/cs501970w] [Citation(s) in RCA: 420] [Impact Index Per Article: 46.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Qiufang Gong
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, People’s Republic of China
| | - Liang Cheng
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, People’s Republic of China
| | - Changhai Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, People’s Republic of China
| | - Mei Zhang
- CAS
Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology, Beijing 100190, People’s Republic of China
| | - Qingliang Feng
- CAS
Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology, Beijing 100190, People’s Republic of China
| | - Hualin Ye
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, People’s Republic of China
| | - Min Zeng
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, People’s Republic of China
| | - Liming Xie
- CAS
Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology, Beijing 100190, People’s Republic of China
| | - Zhuang Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, People’s Republic of China
| | - Yanguang Li
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, People’s Republic of China
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39
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Naffakh M, Díez-Pascual AM. WS2 inorganic nanotubes reinforced poly(l-lactic acid)/hydroxyapatite hybrid composite biomaterials. RSC Adv 2015. [DOI: 10.1039/c5ra10707e] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This study confirms the potential use of WS2 inorganic nanotubes to prepare a novel PLLA/HA hybrid nanocomposite for biomedical applications.
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Affiliation(s)
- Mohammed Naffakh
- Escuela Técnica Superior de Ingenieros Industriales
- Universidad Politécnica de Madrid (ETSII-UPM)
- 28006 Madrid
- Spain
| | - Ana M. Díez-Pascual
- Departamento de Química Analítica
- Química Física e Ingeniería Química
- Facultad de Biología
- Ciencias Ambientales y Química
- Universidad de Alcalá
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40
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Naffakh M, Shuttleworth PS, Ellis G. Bio-based polymer nanocomposites based on nylon 11 and WS2 inorganic nanotubes. RSC Adv 2015. [DOI: 10.1039/c4ra17210h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This study confirms the potential use of novel bio-nylon 11/INT-WS2 for many eco-friendly and biomedical applications.
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Affiliation(s)
- Mohammed Naffakh
- Escuela Técnica Superior de Ingenieros Industriales
- Universidad Politécnica de Madrid (ETSII-UPM)
- 28006 Madrid
- Spain
| | | | - Gary Ellis
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC)
- 28006 Madrid
- Spain
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41
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Deng ZH, Li L, Ding W, Xiong K, Wei ZD. Synthesized ultrathin MoS2 nanosheets perpendicular to graphene for catalysis of hydrogen evolution reaction. Chem Commun (Camb) 2015; 51:1893-6. [DOI: 10.1039/c4cc08491h] [Citation(s) in RCA: 131] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The S atoms bind to active sites of RGO for the nucleation of MoS2 and its subsequent growth perpendicular to RGO.
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Affiliation(s)
- Z. H. Deng
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- College of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
| | - L. Li
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- College of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
| | - W. Ding
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- College of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
| | - K. Xiong
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- College of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
| | - Z. D. Wei
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- College of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
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42
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Li Y, Li A, Li F, Liu D, Chai Y, Liu C. Application of HF etching in a HRTEM study of supported MoS2 catalysts. J Catal 2014. [DOI: 10.1016/j.jcat.2014.06.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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43
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Teo WZ, Chng ELK, Sofer Z, Pumera M. Cytotoxicity of Exfoliated Transition-Metal Dichalcogenides (MoS2, WS2, and WSe2) is Lower Than That of Graphene and its Analogues. Chemistry 2014; 20:9627-32. [DOI: 10.1002/chem.201402680] [Citation(s) in RCA: 296] [Impact Index Per Article: 29.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Indexed: 11/07/2022]
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44
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Viskadouros G, Zak A, Stylianakis M, Kymakis E, Tenne R, Stratakis E. Enhanced field emission of WS₂ nanotubes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:2398-403. [PMID: 24610733 DOI: 10.1002/smll.201303340] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Revised: 01/30/2014] [Indexed: 05/09/2023]
Abstract
Results on electron field emission from free standing tungsten disulfide (WS2) nanotubes (NTs) are presented. Experiments show that the NTs protruding on top of microstructures are efficient cold emitters with turn-on fields as low as 1 V/μm and field enhancement of few thousands. Furthermore, the emission current shows remarkable stability over more than eighteen hours of continuous operation. Such performance and long-term stability of the WS2 cathodes is comparable to that reported for optimized carbon nanotube (CNTs) based emitters. Besides this, it is found that the WS2 cathodes prepared are less sensitive than CNTs in chemical reactive ambients. The high field enhancement and superior reliability achieved indicates a potential for vacuum nanoelectronics and flat panel display applications.
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Affiliation(s)
- G Viskadouros
- Institute of Electronic Structure and Laser (IESL), Foundation for Research and Technology-Hellas (FORTH), Heraklion, 71110, Crete, Greece; Technical University of Crete, 73100, Hania, Greece; Electrical Engineering Department and Center of Materials Technology & Laser, School of Applied Technology, Technological Educational Institute of Crete, Heraklion, 71004, Crete, Greece
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45
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Wang F, Wang X. Mechanisms in the solution growth of free-standing two-dimensional inorganic nanomaterials. NANOSCALE 2014; 6:6398-6414. [PMID: 24816866 DOI: 10.1039/c4nr00973h] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Free-standing two-dimensional (2D) nanomaterials have attracted extensive and growing research interest owing to their exotic physical and mechanical properties, which have enabled their applications in electronics, optoelectronics, electrochemical and biomedical devices. Current synthesis strategies rely largely on top-down approaches such as etching and exfoliation. Among bottom-up approaches in literature, there lacks a systematic understanding of the mechanisms of 2D crystal growth, unlike one-dimensional nanomaterials whose growth mechanisms have been well documented. To date, the growth design of free-standing 2D nanomaterials has remained a case-by-case practice. This review focuses on the bottom-up solution synthesis of free-standing 2D nanomaterials and summarizes the general mechanisms and empirical methodologies that can lead to 2D crystal growth. A brief outlook on the development of synthesis and application of solution-grown 2D nanomaterials is also presented.
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Affiliation(s)
- Fei Wang
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA.
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46
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Thermoplastic Polymer Nanocomposites Based on Inorganic Fullerene-like Nanoparticles and Inorganic Nanotubes. INORGANICS 2014. [DOI: 10.3390/inorganics2020291] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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47
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Zhang X, Meng F, Christianson JR, Arroyo-Torres C, Lukowski MA, Liang D, Schmidt JR, Jin S. Vertical heterostructures of layered metal chalcogenides by van der Waals epitaxy. NANO LETTERS 2014; 14:3047-54. [PMID: 24798138 DOI: 10.1021/nl501000k] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We report a facile chemical vapor deposition (CVD) growth of vertical heterostructures of layered metal dichalcogenides (MX2) enabled by van der Waals epitaxy. Few layers of MoS2, WS2, and WSe2 were grown uniformly onto microplates of SnS2 under mild CVD reaction conditions (<500 °C) and the heteroepitaxy between them was confirmed using cross-sectional transmission electron microscopy (TEM) and unequivocally characterized by resolving the large-area Moiré patterns that appeared on the basal planes of microplates in conventional TEM (nonsectioned). Additional photoluminescence peaks were observed in heterostructures of MoS2-SnS2, which can be understood with electronic structure calculations to likely result from electronic coupling and charge separation between MoS2 and SnS2 layers. This work opens up the exploration of large-area heterostructures of diverse MX2 nanomaterials as the material platform for electronic structure engineering of atomically thin two-dimensional (2D) semiconducting heterostructures and device applications.
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Affiliation(s)
- Xingwang Zhang
- Department of Chemistry, University of Wisconsin-Madison , 1101 University Avenue, Madison, Wisconsin 53706, United States
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48
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Jan R, May P, Bell AP, Habib A, Khan U, Coleman JN. Enhancing the mechanical properties of BN nanosheet-polymer composites by uniaxial drawing. NANOSCALE 2014; 6:4889-4895. [PMID: 24671118 DOI: 10.1039/c3nr06711d] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We have used liquid exfoliation of hexagonal Boron-Nitride (BN) to prepare composites of BN nanosheets of three different sizes in polyvinylchloride matrices. These composites show low levels of reinforcement, consistent with poor alignment of the nanosheets as-described by a modified version of Halpin-Tsai theory. However, drawing of the composites to 300% strain results in a considerable increase in mechanical properties with the maximum composite modulus and strength both ∼×3 higher than that of the pristine polymer. In addition, the rate of increase of modulus with BN volume fraction was up to 3-fold larger than for the unstrained composites. This is higher than can be explained by drawing-induced alignment using Halpin-Tsai theory. However, the data was consistent with a combination of alignment and strain-induced de-aggregation of BN multilayers.
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Affiliation(s)
- Rahim Jan
- School of Chemical and Materials Engineering, National University of Sciences and Technology, H-12 Campus, Islamabad, Pakistan
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49
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50
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Hoshyargar F, Mugnaioli E, Branscheid R, Kolb U, Panthöfer M, Tremel W. Structure analysis on the nanoscale: closed WS2 nanoboxes through a cascade of topo- and epitactic processes. CrystEngComm 2014. [DOI: 10.1039/c4ce00326h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Closed WS2 nanoboxes were formed by topotactic sulfidization of a WO3/WO3·⅓H2O intergrowth phase. The box-like morphology can be traced back to a topotactic dehydration reaction of the precursor followed by an epitactic induction of intermediate hexagonal WO3.
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Affiliation(s)
- Faegheh Hoshyargar
- Institut für Anorganische Chemie und Analytische Chemie
- Johannes Gutenberg-Universität
- D-55099 Mainz, Germany
| | - Enrico Mugnaioli
- Institut für Physikalische Chemie
- Johannes Gutenberg-Universität
- D-55099 Mainz, Germany
| | - Robert Branscheid
- Institut für Physikalische Chemie
- Johannes Gutenberg-Universität
- D-55099 Mainz, Germany
| | - Ute Kolb
- Institut für Physikalische Chemie
- Johannes Gutenberg-Universität
- D-55099 Mainz, Germany
- Institut für Angewandte Geowissenschaften
- Technische Universität Darmstadt
| | - Martin Panthöfer
- Institut für Anorganische Chemie und Analytische Chemie
- Johannes Gutenberg-Universität
- D-55099 Mainz, Germany
| | - Wolfgang Tremel
- Institut für Anorganische Chemie und Analytische Chemie
- Johannes Gutenberg-Universität
- D-55099 Mainz, Germany
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