1
|
Raza A, Rasheed A, Farid A, Yousaf M, Ayub N, Khan IA. Synthesis of Binder-Free, Low-Resistant Randomly Orientated Nanorod/Sheet ZnS-MoS 2 as Electrode Materials for Portable Energy Storage Applications. ACS OMEGA 2024; 9:27919-27931. [PMID: 38973928 PMCID: PMC11223144 DOI: 10.1021/acsomega.3c09560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 03/23/2024] [Accepted: 04/05/2024] [Indexed: 07/09/2024]
Abstract
The scientific community needs to conduct research on novel electrodes for portable energy storage (PES) devices like supercapacitors (S-Cs) and lithium-ion batteries (Li-ion-Bs) to overcome energy crises, especially in rural areas where no electrical poles are available. Herein, the nanostructured MoS2 and ZnS-MoS2 E-Ms consisting of nanoparticles/rods/sheets (N-Ps-Rs-Ss) are deposited on hierarchical nickel foam by a homemade chemical vapor deposition (H-M CVD) route. The X-ray diffraction patterns confirm the formation of polycrystalline films growing along various orientations, whereas the field-emission scanning electron microscope analysis confirms the formation of N-Ps-Rs-Ss. The change in structural and microstructural parameters indicates the existence of defects improving the energy storage ability of the deposited ZnS-MoS2@Ni-F electrodes. The specific capacitances of MoS2@Ni-F and ZnS-MoS2@Ni-F electrodes are found to be 1763 and 3565 F/g at 0.5 mV/s and 1451 and 3032 F/g at 1 A/g, respectively. The growing behavior of impedance graphs indicates their capacitive nature; however, the shifting of impedance curves toward y-axis indicates that the increasing diffusion rates due to the formation of nanostructures of ZnS-MoS2 results in low impedance. An excellent energy storage performance, minimum capacity fading, and improved electrical conductivity of the deposited E-Ms are due to the combined contributions of the electrical double layer and pseudocapacitor nature, which is again confirmed by theoretical Dunn's model. The absence of charge transfer resistance and good capacitance retention (95%) even after 10,000 cycles indicates that the deposited E-Ms are better for PES devices like S-Cs and Li-ion-Bs than MoS2 E-Ms. The assembled asymmetric supercapacitor device exhibited the maximum specific capacitance = 996 F/g, energy density = 354-285 W h/kg, power density = 2400-24,000 W/kg, capacitance retention = 95% and Coulombic efficiency = 100% even after a long charging-discharging of 10,000 cycles.
Collapse
Affiliation(s)
- Asif Raza
- PPEM-Lab, Department of Physics, Government College University Faisalabad, 38000 Faisalabad, Pakistan
| | - Abdur Rasheed
- PPEM-Lab, Department of Physics, Government College University Faisalabad, 38000 Faisalabad, Pakistan
| | - Amjad Farid
- PPEM-Lab, Department of Physics, Government College University Faisalabad, 38000 Faisalabad, Pakistan
| | - Misbah Yousaf
- PPEM-Lab, Department of Physics, Government College University Faisalabad, 38000 Faisalabad, Pakistan
| | - Noman Ayub
- PPEM-Lab, Department of Physics, Government College University Faisalabad, 38000 Faisalabad, Pakistan
| | - Ijaz Ahmad Khan
- PPEM-Lab, Department of Physics, Government College University Faisalabad, 38000 Faisalabad, Pakistan
| |
Collapse
|
2
|
Yin H, Zhou S, Liu J, Huang M. Synergetic enhancement effect of two-dimensional MoS2 nanosheets and metal organic framework-derived porous ZnO nanorods for photodegradation performance. J Chem Phys 2023; 159:204701. [PMID: 37991158 DOI: 10.1063/5.0165181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 11/02/2023] [Indexed: 11/23/2023] Open
Abstract
Two-dimensional transition metal dichalcogenides and semiconductor metal oxides have shown great potential in photocatalysis. However, their stability and efficiency need to be further improved. In this paper, porous ZnO nanorods with high specific surface area were prepared from metal-organic framework ZIF-8 by a simple hydrothermal method. A MoS2/ZnO composite was constructed by loading MoS2 onto the surface of porous ZnO nanorods. Compared with ZnO materials prepared by other methods, MoS2/ZnO prepared in this paper exhibits superior photocatalytic performance. The enhanced photocatalytic activity of the MoS2/ZnO composite can be attributed to the formation of heterojunctions and strong interaction between them, which greatly facilitate the separation of electrons and holes at the contact interface. In addition, due to the wide absorption region of the visible spectrum, MoS2 can greatly broaden the light absorption range of the material after the formation of the composite material, increase the utilization rate of visible light, and reduce the combination of electrons and holes. This study provides a new way to prepare cheap and efficient photocatalysts.
Collapse
Affiliation(s)
- Huimin Yin
- Henan Joint International Research Laboratory of New Energy Materials and Devices, School of Physics and Electronics, Henan University, Kaifeng 475004, China
| | - Suyu Zhou
- Henan Joint International Research Laboratory of New Energy Materials and Devices, School of Physics and Electronics, Henan University, Kaifeng 475004, China
| | - Junhui Liu
- Henan Joint International Research Laboratory of New Energy Materials and Devices, School of Physics and Electronics, Henan University, Kaifeng 475004, China
| | - Mingju Huang
- Henan Joint International Research Laboratory of New Energy Materials and Devices, School of Physics and Electronics, Henan University, Kaifeng 475004, China
| |
Collapse
|
3
|
Nawaz S, Khan Y, Khalid S, Malik MA, Siddiq M. Molybdenum disulfide (MoS 2) along with graphene nanoplatelets (GNPs) utilized to enhance the capacitance of conducting polymers (PANI and PPy). RSC Adv 2023; 13:28785-28797. [PMID: 37790101 PMCID: PMC10543645 DOI: 10.1039/d3ra04153k] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 09/14/2023] [Indexed: 10/05/2023] Open
Abstract
Hybrid composites of molybdenum disulfide (MoS2), graphene nanoplatelets (GNPs) and polyaniline (PANI)/polypyrrole (PPy) have been synthesized as cost-effective electrode materials for supercapacitors. We have produced MoS2 from molybdenum dithiocarbamate by a melt method in an inert environment and then used a liquid exfoliation method to form its composite with graphene nanoplatelets (GNPs) and polymers (PANI and PPy). The MoS2 melt/GNP ratio in the resultant composites was 1 : 3 and the polymer was 10% by wt. of the original composite. XRD (X-ray diffraction analysis) confirmed the formation of MoS2 and SEM (scanning electron microscopy) revealed the morphology of the synthesized materials. The electrochemical charge storage performance of the synthesized composite materials was assessed by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and galvanostatic charge/discharge (GCCD) measurements. Resultant composites showed enhanced electrochemical performances (specific capacitance = 236.23 F g-1, energy density = 64.31 W h kg-1 and power density = 3858.42 W kg-1 for MoS2 melt 5 mPP at a current density of 0.57 A g-1 and had 91.87% capacitance retention after 10 000 charge-discharge cycles) as compared to the produced MoS2; thus, they can be utilized as electrode materials for supercapacitors.
Collapse
Affiliation(s)
- Saima Nawaz
- Department of Chemistry, Quaid-i-Azam University Islamabad 45320 Pakistan +92 5190642147
- Nanoscience and Technology Department, National Centre for Physics, QAU Campus Shahdra Valley Road Islamabad 45320 Pakistan
| | - Yaqoob Khan
- Nanoscience and Technology Department, National Centre for Physics, QAU Campus Shahdra Valley Road Islamabad 45320 Pakistan
| | - Sadia Khalid
- Nanoscience and Technology Department, National Centre for Physics, QAU Campus Shahdra Valley Road Islamabad 45320 Pakistan
| | - Mohammad Azad Malik
- Department of Chemistry, University of Zululand Private Bag X1001 KwaDlangezwa 3880 South Africa +44 7403781143
| | - Muhammad Siddiq
- Department of Chemistry, Quaid-i-Azam University Islamabad 45320 Pakistan +92 5190642147
| |
Collapse
|
4
|
Kumar D, Joharji L, Li H, Rezk A, Nayfeh A, El-Atab N. Artificial visual perception neural system using a solution-processable MoS 2-based in-memory light sensor. LIGHT, SCIENCE & APPLICATIONS 2023; 12:109. [PMID: 37147334 PMCID: PMC10162957 DOI: 10.1038/s41377-023-01166-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 04/08/2023] [Accepted: 04/19/2023] [Indexed: 05/07/2023]
Abstract
Optoelectronic devices are advantageous in in-memory light sensing for visual information processing, recognition, and storage in an energy-efficient manner. Recently, in-memory light sensors have been proposed to improve the energy, area, and time efficiencies of neuromorphic computing systems. This study is primarily focused on the development of a single sensing-storage-processing node based on a two-terminal solution-processable MoS2 metal-oxide-semiconductor (MOS) charge-trapping memory structure-the basic structure for charge-coupled devices (CCD)-and showing its suitability for in-memory light sensing and artificial visual perception. The memory window of the device increased from 2.8 V to more than 6 V when the device was irradiated with optical lights of different wavelengths during the program operation. Furthermore, the charge retention capability of the device at a high temperature (100 °C) was enhanced from 36 to 64% when exposed to a light wavelength of 400 nm. The larger shift in the threshold voltage with an increasing operating voltage confirmed that more charges were trapped at the Al2O3/MoS2 interface and in the MoS2 layer. A small convolutional neural network was proposed to measure the optical sensing and electrical programming abilities of the device. The array simulation received optical images transmitted using a blue light wavelength and performed inference computation to process and recognize the images with 91% accuracy. This study is a significant step toward the development of optoelectronic MOS memory devices for neuromorphic visual perception, adaptive parallel processing networks for in-memory light sensing, and smart CCD cameras with artificial visual perception capabilities.
Collapse
Affiliation(s)
- Dayanand Kumar
- Smart, Advanced Memory Devices and Applications (SAMA) Laboratory, Electrical and Computer Engineering Program, Computer Electrical Mathematical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Kingdom of Saudi Arabia
| | - Lana Joharji
- Smart, Advanced Memory Devices and Applications (SAMA) Laboratory, Electrical and Computer Engineering Program, Computer Electrical Mathematical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Kingdom of Saudi Arabia
| | - Hanrui Li
- Smart, Advanced Memory Devices and Applications (SAMA) Laboratory, Electrical and Computer Engineering Program, Computer Electrical Mathematical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Kingdom of Saudi Arabia
| | - Ayman Rezk
- Department of Electrical Engineering and Computer Science, Khalifa University, Abu Dhabi, 127788, United Arab Emirates
| | - Ammar Nayfeh
- Department of Electrical Engineering and Computer Science, Khalifa University, Abu Dhabi, 127788, United Arab Emirates
| | - Nazek El-Atab
- Smart, Advanced Memory Devices and Applications (SAMA) Laboratory, Electrical and Computer Engineering Program, Computer Electrical Mathematical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Kingdom of Saudi Arabia.
| |
Collapse
|
5
|
Han W, Luo S, Bröker D, Vennemann N, Haase M, Duesberg GS, Steinhart M. Slippery polymer monoliths: Surface functionalization with ordered MoS2 microparticle arrays. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
6
|
Qumar U, Hassan J, Naz S, Haider A, Raza A, Ul-Hamid A, Haider J, Shahzadi I, Ahmad I, Ikram M. Silver decorated 2D nanosheets of GO and MoS 2serve as nanocatalyst for water treatment and antimicrobial applications as ascertained with molecular docking evaluation. NANOTECHNOLOGY 2021; 32:255704. [PMID: 33556921 DOI: 10.1088/1361-6528/abe43c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Accepted: 02/08/2021] [Indexed: 06/12/2023]
Abstract
In this work, synthesis of graphene oxide (GO) and reduced graphene oxide (rGO) was realized through a modified Hummers route. Different concentrations (5 and 10 wt%) of Ag were doped in MoS2and rGO using a hydrothermal technique. Synthesized Ag-MoS2and Ag-rGO were evaluated through XRD that confirmed the hexagonal structure of MoS2along with the transformation of GO to Ag-rGO as indicated by a shift in XRD peaks while Mo-O bonding and S=O functional groups were confirmed with FTIR. Morphological information of GO and formation of MoS2nanopetals as well as interlayer spacing were verified through FESEM and HRTEM respectively. Raman analysis was employed to probe any evidence regarding defect densities of GO. Optical properties of GO, MoS2, Ag-rGO, and Ag-MoS2were visualized through UV-vis and PL spectroscopy. Prepared products were employed as nanocatalysts to purify industrial wastewater. Experimental results revealed that Ag-rGO and Ag-MoS2showed 99% and 80% response in photocatalytic activity. Besides, the nanocatalyst (Ag-MoS2and Ag-rGO) exhibited 6.05 mm inhibition zones againstS. aureusgram positive (G+) and 3.05 mm forE. coligram negative (G-) in antibacterial activity. To rationalize biocidal mechanism of Ag-doped MoS2NPs and Ag-rGO,in silicomolecular docking study was employed for two enzymes i.e.β-lactamase and D-alanine-D-alanine ligase B (ddlB) from cell wall biosynthetic pathway and enoyl-[acylcarrier-protein] reductase (FabI) from fatty acid biosynthetic pathway belonging toS. aureus. The present study provides evidence for the development of cost-effective, environment friendly and viable candidate for photocatalytic and antimicrobial applications.
Collapse
Affiliation(s)
- U Qumar
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
| | - J Hassan
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
| | - S Naz
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, People's Republic of China
| | - A Haider
- Department of Clinical Medicine and Surgery, University of Veterinary and Animal Sciences, Lahore 54000, Punjab, Pakistan
| | - A Raza
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
| | - A Ul-Hamid
- Center for Engineering Research, Research Institute, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
| | - J Haider
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, People's Republic of China
| | - I Shahzadi
- College of Pharmacy, University of the Punjab, Lahore, 54000, Pakistan
| | - I Ahmad
- Department of Chemistry, Allama Iqbal Open University, Islamabad 44000, Pakistan
| | - M Ikram
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore, 54000, Punjab, Pakistan
| |
Collapse
|
7
|
Gbadamasi S, Mohiuddin M, Krishnamurthi V, Verma R, Khan MW, Pathak S, Kalantar-Zadeh K, Mahmood N. Interface chemistry of two-dimensional heterostructures - fundamentals to applications. Chem Soc Rev 2021; 50:4684-4729. [PMID: 33621294 DOI: 10.1039/d0cs01070g] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Two-dimensional heterostructures (2D HSs) have emerged as a new class of materials where dissimilar 2D materials are combined to synergise their advantages and alleviate shortcomings. Such a combination of dissimilar components into 2D HSs offers fascinating properties and intriguing functionalities attributed to the newly formed heterointerface of constituent components. Understanding the nature of the surface and the complex heterointerface of HSs at the atomic level is crucial for realising the desired properties, designing innovative 2D HSs, and ultimately unlocking their full potential for practical applications. Therefore, this review provides the recent progress in the field of 2D HSs with a focus on the discussion of the fundamentals and the chemistry of heterointerfaces based on van der Waals (vdW) and covalent interactions. It also explains the challenges associated with the scalable synthesis and introduces possible methodologies to produce large quantities with good control over the heterointerface. Subsequently, it highlights the specialised characterisation techniques to reveal the heterointerface formation, chemistry and nature. Afterwards, we give an overview of the role of 2D HSs in various emerging applications, particularly in high-power batteries, bifunctional catalysts, electronics, and sensors. In the end, we present conclusions with the possible solutions to the associated challenges with the heterointerfaces and potential opportunities that can be adopted for innovative applications.
Collapse
|
8
|
Fabrication of MWCNTs wrapped nickel manganese phosphate asymmetric capacitor as a supercapattery electrode for energy storage applications. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.108194] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
9
|
Raza A, Qumar U, Hassan J, Ikram M, Ul-Hamid A, Haider J, Imran M, Ali S. A comparative study of dirac 2D materials, TMDCs and 2D insulators with regard to their structures and photocatalytic/sonophotocatalytic behavior. APPLIED NANOSCIENCE 2020. [DOI: 10.1007/s13204-020-01475-y] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
10
|
Abraham AM, Lonkar SP, Pillai VV, Alhassan SM. Three-Dimensional MoS 2 Nanodot-Impregnated Nickel Foam Electrodes for High-Performance Supercapacitor Applications. ACS OMEGA 2020; 5:11721-11729. [PMID: 32478263 PMCID: PMC7254773 DOI: 10.1021/acsomega.0c01045] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Accepted: 05/08/2020] [Indexed: 05/30/2023]
Abstract
An economical and binder-free electrode was fabricated by impregnation of sub-5 nm MoS2 nanodots (MoS2 NDs) onto a three-dimensional (3D) nickel substrate using the facile dip-coating method. The MoS2 NDs were successfully synthesized by controlled bath sonication of highly crystalline MoS2 nanosheets. The as-fabricated high-surface area electrode demonstrated promising electrochemical properties. It was observed that the as-synthesized NDs outperformed the layered MoS2 peers as the electrode for supercapacitors. MoS2 NDs exhibited an excellent specific capacitance (C sp) of 395 F/g at a current load of 1.5 A/g in a three-electrode configuration. In addition, the fabricated symmetric supercapacitor demonstrated a C sp value of 122 F/g at 1 A/g and a cyclic performance of 86% over 1000 cycles with a gravimetric power and energy density of 10,000 W/kg and 22 W h/kg, respectively. Owing to its simple and efficient fabrication and high surface area, such 3D electrodes show high promise for various energy storage devices.
Collapse
Affiliation(s)
- Akhil M. Abraham
- Department of Chemistry, University of Calgary, 2500 University Dr. NW, Calgary, Alberta T2N 1N4, Canada
| | - Sunil P. Lonkar
- Department
of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, UAE
| | - Vishnu V. Pillai
- Department
of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, UAE
| | - Saeed M. Alhassan
- Department
of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, UAE
| |
Collapse
|
11
|
Qumar U, Ikram M, Imran M, Haider A, Ul-Hamid A, Haider J, Riaz KN, Ali S. Synergistic effect of Bi-doped exfoliated MoS 2 nanosheets on their bactericidal and dye degradation potential. Dalton Trans 2020; 49:5362-5377. [PMID: 32255457 DOI: 10.1039/d0dt00924e] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Nanosheets incorporated with biological reducing agents are widely used to minimize the toxic effects of chemicals. Biologically amalgamated metal oxide nanomaterials have crucial importance in nanotechnology. In this study, bare and bismuth (Bi)-doped molybdenum disulfide (MoS2) nanosheets were synthesized via a hydrothermal method. Different Bi weight ratios of 2.5, 5, 7.5 and 10% were incorporated in a fixed amount of MoS2 to evaluate its catalytic and antimicrobial activities. Doped nanosheets were characterized using XRD, FTIR and UV-vis spectroscopy, FESEM, HRTEM, Raman, PL, DSC/TGA, EDX, XRF and XPS analysis. The XRD spectra confirmed that the doped nanosheets exhibit a hexagonal structure and their crystallite size increases gradually upon doping. The morphology and interlayer d-spacing of doped MoS2 were determined by FESEM and HRTEM. The presence of functional groups in the doped nanosheets was confirmed using FTIR, PL and Raman analysis. The absorption intensity increased and the corresponding measured band gap energy decreased with doping. The thermal stability and weight loss behaviour of the prepared samples were studied using DSC/TGA. The doped MoS2 nanosheets showed a higher catalytic potential compared to undoped MoS2. The doped Bi nanosheets exhibited higher antimicrobial activity against Gram-positive Staphylococcus aureus (S. aureus) and Gram-negative Escherichia coli (E. coli) at different concentrations of Bi (0.075 and 0.1), showing a tendency to counter the emerging drug resistance against pathogenic bacterial diseases. Consequently, significant inhibition zones were recorded against (MDR) S. aureus ranging from 2.25 to 3.3 mm and 3.25 to 5.05 mm at low and high concentrations of doped-Bi nanosheets and against Gram-negative E. coli ranging from 1 to 1.45 mm at high concentrations. In conclusion, the Bi-doped MoS2 nanocomposite has exhibited significant potential for use in industrial dye degradation applications. Its antibacterial properties can also mitigate health risks associated with the presence of several well-known pathogens in the environment.
Collapse
Affiliation(s)
- U Qumar
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore, 54000, Punjab, Pakistan. and Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
| | - M Ikram
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore, 54000, Punjab, Pakistan.
| | - M Imran
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Centre for Soft Matter Science and Engineering, Beijing Engineering Center for Hierarchical Catalysts, Beijing University of Chemical Technology, Beijing 100029, China
| | - A Haider
- Department of Clinical Medicine and Surgery, University of Veterinary and Animal Sciences Lahore, 54000, Punjab, Pakistan
| | - A Ul-Hamid
- Center for Engineering Research, Research Institute, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
| | - J Haider
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
| | - K N Riaz
- Department of Physics, University of Gujrat, HH Campus, Gujrat, 50700, Pakistan
| | - S Ali
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University, 14 Ali Road, Lahore, Pakistan
| |
Collapse
|
12
|
Alegaonkar AP, Alegaonkar PS, Pardeshi SK. Electrochemical performance of a self-assembled two-dimensional heterostructure of rGO/MoS 2/h-BN. NANOSCALE ADVANCES 2020; 2:1531-1541. [PMID: 36132305 PMCID: PMC9419772 DOI: 10.1039/d0na00021c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 02/19/2020] [Indexed: 06/11/2023]
Abstract
We report the preparation and electrochemical performance evaluation of a two-dimensional (2D) self-assembled heterostructure of graphene oxide (rGO), molybdenum disulphide (MoS2), and hexagonal boron nitride (h-BN). In the present study, the rGO-MoS2-h-BN (GMH) multi-layered GMH heterostructure is fabricated via an in situ chemical route. Based on material analysis, the composite consists of bond conformations of C-B-C, Mo-S, C-N, B-N, and Mo-C, indicating the layered stacks of rGO/h-BN/MoS2. In electrochemical analysis, the composite showed superior performance in the aqueous medium of cobalt sulphate (CoSO4) over other samples. CV measurements, performed over the range 10 to 100 mV s-1, showed a change in specific capacitance (C sp) from 800 to 100 F g-1. GMH showed almost no degradation up to 20 000 cycles @ 100 mV s-1. The calculated C sp, energy density (E D), and power density (P D) are discussed in light of Nyquist, Bode, and Ragone analysis. An equivalent circuit is simulated for the cell and its discrete electronic components are discussed. Due to its larger effective electron diffusion length > 1000 μm, broadly, the composite showed battery-like characteristics, as supported by radical paramagnetic resonance and transport response studies. The symmetric electrodes prepared in one step are facile to fabricate, easy to integrate and involve no pre or post-treatment. They possess superior flat cell character, are cost effective, and are favourable towards practicality at an industrial scale, as demonstrated on the laboratory bench. The details are presented.
Collapse
Affiliation(s)
- Ashwini P Alegaonkar
- Department of Chemistry, Savitribai Phule Pune University (Formerly University of Pune) Ganeshkhind Pune 411 007 MS India
| | - Prashant S Alegaonkar
- Department of Physics, School of Basic and Applied Sciences, Central University of Punjab City Campus, Mansa Road Bathinda 151 001 Punjab India
| | - Satish K Pardeshi
- Department of Chemistry, Savitribai Phule Pune University (Formerly University of Pune) Ganeshkhind Pune 411 007 MS India
| |
Collapse
|
13
|
Preparation of Few-Layered Wide Bandgap MoS2 with Nanometer Lateral Dimensions by Applying Laser Irradiation. CRYSTALS 2020. [DOI: 10.3390/cryst10030164] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
In this study, we report a new method for the quick, green, and one-step preparation of few-layered molybdenum disulfide (MoS2) nanosheets with wide bandgap. MoS2 nanosheets with small lateral dimension and uniform size distribution were synthesized for various applications. MoS2 powder was synthesized using the hydrothermal method; then, thinned by applying laser irradiation with different energies from 40 to 80 mJ. Transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), UV-Vis absorption spectra, and photoluminescence (PL) spectra were applied for the characterization of the MoS2 nanosheets in terms of morphology, crystal structures, and optical properties. The widest calculated bandgap 4.7 eV was for the sample under 80 mJ laser energy. The results confirmed the successful preparation of highly pure, uniform, and few-layered MoS2 nanosheets. Furthermore, it was possible to enhance the production rate of MoS2 nanosheets (including nanosheets and nanoparticles) through laser irradiation. Thus, the present paper introduces a simple and green alternative approach for preparing few-layered MoS2 nanosheets of transition metal dichalcogenides or other layered materials.
Collapse
|
14
|
Quan Y, Su R, Hu M, Lang J, Fan H, Shen H, Gao M, Li B, Liu Y, Yang J. Construction of an MZO heterojunction system with improved photocatalytic activity for degradation of organic dyes. CrystEngComm 2020. [DOI: 10.1039/d0ce00581a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Aiming at the challenging problems in environmental remediation, we have designed a novel MZO heterojunction material for applications in photocatalysis.
Collapse
|
15
|
One-pot hydrothermal synthesis of nitrogen and phosphorus Co-doped graphene decorated with flower-like molybdenum sulfide for enhanced supercapacitor performance. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2019.135265] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
16
|
Patil SH, Gaikwad AP, Waghmode BJ, Sathaye SD, Patil KR. A graphene–MnO 2 composite supercapacitor material accomplished tactically using liquid–liquid and solid–liquid interface reaction techniques. NEW J CHEM 2020. [DOI: 10.1039/c9nj05898b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An exceptional, simplistic, approach is established for preparing a GNS–MnO2 thin film supercapacitor having a steady and superior performance.
Collapse
Affiliation(s)
- Sagar H. Patil
- C.M.C. Division
- National Chemical Laboratory
- Pune 411008
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Aarti P. Gaikwad
- C.M.C. Division
- National Chemical Laboratory
- Pune 411008
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | | | | | | |
Collapse
|
17
|
3D NiO nanowires@NiO nanosheets core-shell structures grown on nickel foam for high performance supercapacitor electrode. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2019.113710] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
18
|
One-step electrochemical synthesis of MoS2/graphene composite for supercapacitor application. J Solid State Electrochem 2019. [DOI: 10.1007/s10008-019-04449-5] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
|
19
|
Yuan Y, Lv H, Xu Q, Liu H, Wang Y. A few-layered MoS 2 nanosheets/nitrogen-doped graphene 3D aerogel as a high performance and long-term stability supercapacitor electrode. NANOSCALE 2019; 11:4318-4327. [PMID: 30789187 DOI: 10.1039/c8nr05620j] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Typical advanced transition-metal dichalcogenides, in particular molybdenum disulfide (MoS2), have recently attracted intense interest owing to their unique properties and tremendous application prospects in electrochemical energy storage. However, the limited re-stacking of atomic layers by van der Waals forces restrictedly affects their electrochemical characteristics. Herein, the construction of three-dimensional (3D) architectures via 2D mono- or few-layered MoS2 nanosheets and nitrogen-doped graphene aerogels has been employed to obtain and retain conductive networks; as a result, large surface areas and high electrical conductivities were achieved. When used as a supercapacitor electrode material, this hybrid aerogel exhibits an excellent specific capacitance of 532 F g-1 at a current density of 1 A g-1 and a superior cycling stability of 93.6% capacitance retention after 10 000 cycles at 10 A g-1, which is significantly higher than those of MoS2 nanosheets and nitrogen-doped graphene aerogels alone. Therefore, it is believed that these 3D hybrid aerogels of MoS2 nanosheets/nitrogen-doped graphene (3D MoS2/N-GAs) have great potential to become promising candidates for supercapacitor electrode materials.
Collapse
Affiliation(s)
- Yue Yuan
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, China.
| | | | | | | | | |
Collapse
|
20
|
Hongtao L, Zichen X, Lina Z, Zhiqiang Z, Li X. The effects of different surfactants on the morphologies and electrochemical properties of MoS2/reduce graphene oxide composites. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2018.12.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
21
|
Si H, Sun L, Zhang Y, Zhang Y, Bai L, Zhang Y. Carbon-coated MoO2 nanoclusters anchored on RGO sheets as high-performance electrodes for symmetric supercapacitors. Dalton Trans 2019; 48:285-295. [DOI: 10.1039/c8dt03665a] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An RGO@MoO2/C composite is synthesized with carbon-coated MoO2 nanoclusters homogenously loaded on RGO sheets, showing enhanced capacitive performance.
Collapse
Affiliation(s)
- Haochen Si
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing
| | - Li Sun
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing
| | - Yu Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing
| | - Yuanxing Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing
| | - Liqi Bai
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing
| | - Yihe Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing
| |
Collapse
|
22
|
Liu MC, Xu Y, Hu YX, Yang QQ, Kong LB, Liu WW, Niu WJ, Chueh YL. Electrostatically Charged MoS 2/Graphene Oxide Hybrid Composites for Excellent Electrochemical Energy Storage Devices. ACS APPLIED MATERIALS & INTERFACES 2018; 10:35571-35579. [PMID: 30152235 DOI: 10.1021/acsami.8b09085] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We demonstrate, for the first time, a new method of fabricating hybrid MoS2/poly(ethyleneimine)-modified graphene oxide (PEI-GO) composites assembled through electrostatically charged interaction between the negatively charged MoS2 nanosheets and positively charged PEI-GO in an aqueous solution. The GO can not only improve the electronic conductivity of the MoS2/PEI-GO composites, leading to an excellent charge-transfer network, but also hamper the restacking of MoS2 nanosheets. The composition ratios between MoS2 and PEI-GO were also optimized with the highest specific capacitance of 153.9 F g-1 where 96.0% of the initial specific capacitance remains after 6800 cycles. The specific capacitance of only 117.5 F g-1 was observed for the pure MoS2 nanosheets, and 68.2% of the initial specific capacitance was achieved after 5000 cycles. The excellent electrochemical performance of the hybrid MoS2/PEI-GO composites was demonstrated by establishing an asymmetric supercapacitor with a MoS2/PEI-GO-based negative electrode and an activated-carbon positive electrode. The asymmetric supercapacitor provided a maximum capacitance of 42.9 F g-1, and 93.1% of the initial capacitance was maintained after 8000 cycles. Furthermore, a MoS2/PEI-GO//activated-carbon asymmetric supercapacitor delivered an energy density of 19.3 W h kg-1 and a power density of 4500 W kg-1, indicating the potential of the hybrid MoS2/PEI-GO composites in electrochemical energy storage applications.
Collapse
Affiliation(s)
- Mao-Cheng Liu
- State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals and School of Materials Science and Engineering , Lanzhou University of Technology , Lanzhou 730050 , P. R. China
| | - Yan Xu
- State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals and School of Materials Science and Engineering , Lanzhou University of Technology , Lanzhou 730050 , P. R. China
| | | | - Qing-Qing Yang
- State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals and School of Materials Science and Engineering , Lanzhou University of Technology , Lanzhou 730050 , P. R. China
| | - Ling-Bin Kong
- State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals and School of Materials Science and Engineering , Lanzhou University of Technology , Lanzhou 730050 , P. R. China
| | - Wen-Wu Liu
- State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals and School of Materials Science and Engineering , Lanzhou University of Technology , Lanzhou 730050 , P. R. China
| | - Wen-Jun Niu
- State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals and School of Materials Science and Engineering , Lanzhou University of Technology , Lanzhou 730050 , P. R. China
| | - Yu-Lun Chueh
- State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals and School of Materials Science and Engineering , Lanzhou University of Technology , Lanzhou 730050 , P. R. China
- Department of Physics , National Sun Yet-Sun University , Kaohsiung 80424 , Taiwan , ROC
| |
Collapse
|
23
|
Rozenfeld S, Teller H, Schechter M, Farber R, Krichevski O, Schechter A, Cahan R. Exfoliated molybdenum di-sulfide (MoS2) electrode for hydrogen production in microbial electrolysis cell. Bioelectrochemistry 2018; 123:201-210. [DOI: 10.1016/j.bioelechem.2018.05.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 05/07/2018] [Accepted: 05/08/2018] [Indexed: 10/16/2022]
|
24
|
Roy R, Thapa R, Biswas S, Saha S, Ghorai UK, Sen D, Kumar EM, Kumar GS, Mazumder N, Roy D, Chattopadhyay KK. Resonant energy transfer in a van der Waals stacked MoS 2 - functionalized graphene quantum dot composite with ab initio validation. NANOSCALE 2018; 10:16822-16829. [PMID: 30167606 DOI: 10.1039/c8nr04412k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Graphene-based van der Waals (vdW) heterostructures can facilitate exciting charge transfer dynamics in between structural layers with the emission of excitonic quasi-particles. However, the chemical formation of such heterostructures has been elusive thus far. In this work, a simple chemical approach is described to form such van der Waals (vdW) heterostructures using few layer MoS2 sheet embedded quantum dots (QDs) and amine-functionalized graphene quantum dots (GQDs) to probe the energy transfer mechanism for tunable photoluminescence (PL). Our findings reveal an interesting non-radiative Förster-type energy transfer with the quenching of functional GQD PL intensity after GQD/MoS2 composite formation, which validates the existing charge transfer dynamics analogous to 0D and 2D systems. The non-radiative type of energy transfer characteristic from GQD into the MoS2 layer through vdW interactions has been confirmed by photoluminescence, time decay analyses and ab initio calculations with the shifting of the Fermi level in the density of states towards the conduction band in the stacked configuration. These results are encouraging for the fundamental exploration of optical properties in other chemically prepared QD/2D based heterostructures to understand the charge transfer mechanism and fingerprint luminescence quenching for future optoelectronic device and optical sensing applications.
Collapse
Affiliation(s)
- Rajarshi Roy
- Thin Film and Nanoscience Laboratory, Dept. of Physics, Jadavpur University, Kolkata-700032, India.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
25
|
Saraf M, Natarajan K, Mobin SM. Emerging Robust Heterostructure of MoS 2-rGO for High-Performance Supercapacitors. ACS APPLIED MATERIALS & INTERFACES 2018; 10:16588-16595. [PMID: 29697955 DOI: 10.1021/acsami.8b04540] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The intermittent nature of renewable energy resources has led to a continuous mismatch between energy demand and supply. A possible solution to overcome this persistent problem is to design appropriate energy-storage materials. Supercapacitors based on different nanoelectrode materials have emerged as one of the promising storage devices. In this work, we investigate the supercapacitor properties of a molybdenum disulfide-reduced graphene oxide (rGO) heterostructure-based binder-free electrode, which delivered a high specific capacitance (387.6 F g-1 at 1.2 A g-1) and impressive cycling stability (virtually no loss up to 1000 cycles). In addition, the possible role of rGO in the composite toward synergistically enhanced supercapacitance has been highlighted. Moreover, an attempt has been made to correlate the electrochemical impedance spectroscopy studies with the voltammetric analyses. The performance exceeds that of the reported state-of-the-art structures.
Collapse
|
26
|
Kim T, Kim D, Choi CH, Joung D, Park J, Shin JC, Kang SW. Structural defects in a nanomesh of bulk MoS 2 using an anodic aluminum oxide template for photoluminescence efficiency enhancement. Sci Rep 2018; 8:6648. [PMID: 29703979 PMCID: PMC5923261 DOI: 10.1038/s41598-018-25045-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 04/13/2018] [Indexed: 12/04/2022] Open
Abstract
Two-dimensional (2D) materials beyond graphene have attracted considerable interest because of the zero bandgap drawbacks of graphene. Transition metal dichalcogenides (TMDs), such as MoS2 and WSe2, are the potential candidates for next 2D materials because atomically thin layers of TMDs exhibit unique and versatile electrical and optical properties. Although bulk TMDs materials have an indirect bandgap, an indirect-to-direct bandgap transition is observed in monolayers of TMDs (MoS2, WSe2, and MoSe2). Optical properties of TMD films can be improved by the introduction of structural defects. For example, large-area spatial tuning of the optical transition of bulk MoS2 films is achieved by using an anodic aluminum oxide (AAO) template to induce structural defects such as edge- and terrace-terminated defects in a nanomesh structure. Strong photoluminescence emission peaks with a band gap of 1.81 eV are observed, possibly because of radiative transition at the defect sites. This work shows that the AAO template lithography method has potential for the production of homogenous large-scale nanomesh structures for practical semiconductor processing applications in future MoS2-based electronic and optical devices.
Collapse
Affiliation(s)
- TaeWan Kim
- Advanced Instrumentation Institute, Korea Research Institute of Standards and Science, Daejeon, 34113, South Korea
| | - DongHwan Kim
- Advanced Instrumentation Institute, Korea Research Institute of Standards and Science, Daejeon, 34113, South Korea
- Department of Physics, Yeungnam University, Gyeongsan, 38541, South Korea
| | - Chan Ho Choi
- Department of Physics, Yeungnam University, Gyeongsan, 38541, South Korea
- National Institute for Nanomaterials Technology, Pohang, 37673, South Korea
| | - DaeHwa Joung
- Advanced Instrumentation Institute, Korea Research Institute of Standards and Science, Daejeon, 34113, South Korea
- Department of Electrical Engineering, Kyungpook National University, Daegu, 41566, South Korea
| | - JongHoo Park
- Department of Electrical Engineering, Kyungpook National University, Daegu, 41566, South Korea
| | - Jae Cheol Shin
- Department of Physics, Yeungnam University, Gyeongsan, 38541, South Korea.
| | - Sang-Woo Kang
- Advanced Instrumentation Institute, Korea Research Institute of Standards and Science, Daejeon, 34113, South Korea.
- Department of Next-generation Device Engineering, University of Science and Technology, Daejeon, 34602, South Korea.
| |
Collapse
|
27
|
Ji Y, Wei Q, Sun Y. Superior Capacitive Performance Enabled by Edge-Oriented and Interlayer-Expanded MoS2 Nanosheets Anchored on Reduced Graphene Oxide Sheets. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.7b05342] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Yajun Ji
- Department of Chemistry, Temple University, 1901 North 13th Street, Philadelphia, Pennsylvania 19122, United States
- College of Science, University of Shanghai for Science and Technology, Jungong Road 334#, 200093 Shanghai, People’s Republic of China
| | - Qilin Wei
- Department of Chemistry, Temple University, 1901 North 13th Street, Philadelphia, Pennsylvania 19122, United States
| | - Yugang Sun
- Department of Chemistry, Temple University, 1901 North 13th Street, Philadelphia, Pennsylvania 19122, United States
| |
Collapse
|
28
|
Sari FNI, Ting JM. MoS 2 /MoO x -Nanostructure-Decorated Activated Carbon Cloth for Enhanced Supercapacitor Performance. CHEMSUSCHEM 2018; 11:897-906. [PMID: 29314643 DOI: 10.1002/cssc.201702295] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 12/30/2017] [Indexed: 06/07/2023]
Abstract
MoS2 /MoOx nanostructures were grown on activated carbon cloth through a facile one-step microwave-assisted hydrothermal method. The growth of MoS2 /MoOx on activated carbon cloth creates a unique structure that favors ion intercalation. The conductive activated carbon cloth, MoO3-x , and monoclinic MoO2 provide fast electron transport, whereas the MoS2 nanosheets/MoO3-x nanoparticles structure improves the capacitance. As a result, MoS2 /MoOx -nanostructure-decorated activated carbon cloth shows a high specific capacitance of 230 F g-1 at a scan rate of 5 mV s-1 with a low contact resistance of approximately 1.91 Ω. Moreover, the activated carbon cloth acts as a template for the growth of a perpendicular MoS2 layer, which gives an excellent utilization rate of the active MoS2 /MoOx material. We also demonstrate that the MoS2 /MoOx /activated carbon cloth nanocomposite shows excellent electrochemical stability with retention up to 128 % after 1500 cycles. Finally, we show the use of a microwave-assisted hydrothermal method for the synthesis of the MoS2 /MoOx /activated carbon cloth nanocomposite as an alternative and clean route to improve the kinetics of the intercalation redox reaction.
Collapse
Affiliation(s)
- Fitri Nur Indah Sari
- Department of Materials Science and Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Jyh-Ming Ting
- Department of Materials Science and Engineering, National Cheng Kung University, Tainan, Taiwan
| |
Collapse
|
29
|
To form layer by layer composite film in view of its application as supercapacitor electrode by exploiting the techniques of thin films formation just around the corner. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.01.165] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
|
30
|
Chen X, Ding J, Jiang J, Zhuang G, Zhang Z, Yang P. Preparation of a MoS2/carbon nanotube composite as an electrode material for high-performance supercapacitors. RSC Adv 2018; 8:29488-29494. [PMID: 35547327 PMCID: PMC9085153 DOI: 10.1039/c8ra05158e] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 08/14/2018] [Indexed: 11/21/2022] Open
Abstract
MoS2 and MoS2/carbon allotrope (MoS2/C) composites for use as anodes in supercapacitors were prepared via a facile hydrothermal method. In this study, we report the effects of various carbon-based materials (2D graphene nanosheet (GNS), 1D carbon nanotube (CNT), and 0D nano carbon (NC)) on the electrochemical performances. Among all nanocomposites studied, MoS2/CNT exhibited the best electrochemical performance. Specifically, the MoS2/CNT composite exhibits remarkable performances with a high specific capacitance of 402 F g−1 at a current density of 1 A g−1 and an outstanding cycling stability with 81.9% capacitance retention after 10 000 continuous charge–discharge cycles at a high current density of 1 A g−1, making it adaptive for high-performance supercapacitors. The superiority of MoS2/CNT was investigated by field emission scanning electron microscopy and transmission electron microscopy, which showed that MoS2 nanosheets were uniformly loaded into the three-dimensional interconnected network of nanotubes, providing an excellent three dimensional charge transfer network and electrolyte diffusion channels while effectively buffering the collapse and aggregation of active materials during charge–discharge processes. Overall, the MoS2/CNT nanocomposite synthesized by a simple hydrothermal process presents a new and promising candidate for high-performance anodes for supercapacitors. The effect of carbon supports on the electrochemical performance of MoS2 nanosheets for supercapacitor applications was investigated.![]()
Collapse
Affiliation(s)
- Xiaobo Chen
- School of New Energy and Electronic Engineering
- Yancheng Teachers University
- Yancheng
- P. R. China
| | - Jingguo Ding
- School of New Energy and Electronic Engineering
- Yancheng Teachers University
- Yancheng
- P. R. China
| | - Jing Jiang
- School of New Energy and Electronic Engineering
- Yancheng Teachers University
- Yancheng
- P. R. China
| | - Guoce Zhuang
- School of New Energy and Electronic Engineering
- Yancheng Teachers University
- Yancheng
- P. R. China
| | - Zhihai Zhang
- School of New Energy and Electronic Engineering
- Yancheng Teachers University
- Yancheng
- P. R. China
| | - Peizhi Yang
- Key Laboratory of Education Ministry for Advance Technique and Preparation of Renewable Energy Materials
- Institute of Solar Energy
- Yunnan Normal University
- Kunming
- P. R. China
| |
Collapse
|
31
|
Gong F, Liu X, Yang Y, Xia D, Wang W, Duong HM, Papavassiliou DV, Xu Z, Liao J, Wu M. A Facile Approach to Tune the Electrical and Thermal Properties of Graphene Aerogels by Including Bulk MoS₂. NANOMATERIALS (BASEL, SWITZERLAND) 2017; 7:E420. [PMID: 29194383 PMCID: PMC5746910 DOI: 10.3390/nano7120420] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 11/25/2017] [Accepted: 11/27/2017] [Indexed: 11/17/2022]
Abstract
Graphene aerogels (GAs) have attracted extensive interest in diverse fields, owing to their ultrahigh surface area, low density and decent electrical conductivity. However, the undesirable thermal conductivity of GAs may limit their applications in energy storage devices. Here, we report a facile hydrothermal method to modulate both the electrical and thermal properties of GAs by including bulk molybdenum disulfide (MoS₂). It was found that MoS₂ can help to reduce the size of graphene sheets and improve their dispersion, leading to the uniform porous micro-structure of GAs. The electrical measurement showed that the electrical conductivity of GAs could be decreased by 87% by adding 0.132 vol % of MoS₂. On the contrary, the thermal conductivity of GAs could be increased by ~51% by including 0.2 vol % of MoS₂. The quantitative investigation demonstrated that the effective medium theories (EMTs) could be applied to predict the thermal conductivity of composite GAs. Our findings indicated that the electrical and thermal properties of GAs can be tuned for the applications in various fields.
Collapse
Affiliation(s)
- Feng Gong
- School of Energy Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China.
| | - Xiongxiong Liu
- School of Energy Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China.
| | - Yunlong Yang
- School of Energy Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China.
| | - Dawei Xia
- School of Energy Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China.
| | - Wenbin Wang
- School of Energy Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China.
| | - Hai M Duong
- Department of Mechanical Engineering, National University of Singapore, Singapore 117576, Singapore.
| | - Dimitrios V Papavassiliou
- School of Chemical, Biological, and Materials Engineering, University of Oklahoma, Norman, OK 73019, USA.
| | - Ziqiang Xu
- School of Energy Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China.
| | - Jiaxuan Liao
- School of Energy Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China.
| | - Mengqiang Wu
- School of Energy Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China.
| |
Collapse
|
32
|
Karade SS, Dubal DP, Sankapal BR. Decoration of Ultrathin MoS2
Nanoflakes over MWCNTs: Enhanced Supercapacitive Performance through Electrode to Symmetric All-Solid-State Device. ChemistrySelect 2017. [DOI: 10.1002/slct.201701788] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Swapnil S. Karade
- Nanomaterials and device laboratory, Department of physics; Visvesvaraya National Institute of Technology; Nagpur- 440010, Maharashtra India
| | - Deepak P. Dubal
- School of Chemical Engineering; The University of Adelaide; Adelaide, South Australia 5005 Australia
| | - Babasaheb R. Sankapal
- Nanomaterials and device laboratory, Department of physics; Visvesvaraya National Institute of Technology; Nagpur- 440010, Maharashtra India
| |
Collapse
|
33
|
Theerthagiri J, Senthil R, Senthilkumar B, Reddy Polu A, Madhavan J, Ashokkumar M. Recent advances in MoS 2 nanostructured materials for energy and environmental applications – A review. J SOLID STATE CHEM 2017. [DOI: 10.1016/j.jssc.2017.04.041] [Citation(s) in RCA: 143] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
34
|
Ojha K, Saha S, Banerjee S, Ganguli AK. Efficient Electrocatalytic Hydrogen Evolution from MoS 2-Functionalized Mo 2N Nanostructures. ACS APPLIED MATERIALS & INTERFACES 2017; 9:19455-19461. [PMID: 28244720 DOI: 10.1021/acsami.6b10717] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Molybdenum-based compounds and their composites were investigated as an alternative to Pt for hydrogen evolution reactions. The presence of interfaces and junctions between Mo2N and MoS2 grains in the composites were investigated to understand their role in electrochemical processes. Here we found that the electrocatalytic activity of Mo2N nanostructures was enhanced remarkably by conjugation with few-layer MoS2 sheets. The electrocatalytic performance of Mo2N-MoS2 composites in the hydrogen evolution reaction (HER) was revealed from the high catalytic current density of ∼175 mA cm-2 (at 400 mV) and good electrochemical stability (more than 18 h) in acidic media. Increasing the amount of MoS2 in the composite, decreases the HER activity. The mechanism and kinetics of the HER process on the Mo2N-MoS2 surface were analyzed using Tafel slopes and charge transfer resistance.
Collapse
Affiliation(s)
- Kasinath Ojha
- Department of Chemistry, Indian Institute of Technology Delhi , Hauz Khas, New Delhi-110016, India
| | - Soumen Saha
- Department of Chemistry, Indian Institute of Technology Delhi , Hauz Khas, New Delhi-110016, India
| | - Shivali Banerjee
- Department of Chemistry, Indian Institute of Technology Delhi , Hauz Khas, New Delhi-110016, India
| | - Ashok K Ganguli
- Department of Chemistry, Indian Institute of Technology Delhi , Hauz Khas, New Delhi-110016, India
- Institute of Nano Science and Technology, Mohali , Mohali, Phase-10, Sector-64, Punjab-160062, India
| |
Collapse
|
35
|
Pujari R, Lokhande A, Shelke A, Kim J, Lokhande C. Chemically deposited nano grain composed MoS2 thin films for supercapacitor application. J Colloid Interface Sci 2017; 496:1-7. [DOI: 10.1016/j.jcis.2016.11.026] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 11/07/2016] [Accepted: 11/07/2016] [Indexed: 11/30/2022]
|
36
|
Liu L, Huang Y, Sha J, Chen Y. Layer-controlled precise fabrication of ultrathin MoS 2 films by atomic layer deposition. NANOTECHNOLOGY 2017; 28:195605. [PMID: 28323252 DOI: 10.1088/1361-6528/aa6827] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Monolayer and/or atomically thin transition metal dichalcogenides cover a wide range of two-dimensional (2D) materials, whose fascinating semiconducting and optical properties have made them promising candidate materials for optoelectronic devices. Controllable growth of these materials is critical for their device applications. By using MoCl5 and H2S as precursors, monolayer and ultrathin molybdenum disulfide (MoS2) films with controlled lamellar structure have been directly built layer by layer on SiO2 substrates without being followed by high-temperature annealing. Furthermore, the thickness of MoS2 films can be precisely regulated by applying different atomic layer deposition (ALD) cycles. Once an ALD cycle is applied, one molecular layer of MoS2 material will be 'added' on the substrate or original existing MoS2 films. At the initial stage (one to three ALD cycles), the density of MoS2 materials increases with an increase in ALD cycles, while a large area of continuous MoS2 film on the substrate can be obtained when four or more ALD cycles are applied. In this way, excellent triangular crystals of MoS2 with controlled atomic size in thickness and a highly oriented hexagonal crystal structures can be obtained by applying definite ALD cycles.
Collapse
|
37
|
Wang T, Chen S, Pang H, Xue H, Yu Y. MoS 2-Based Nanocomposites for Electrochemical Energy Storage. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2017; 4:1600289. [PMID: 28251051 PMCID: PMC5323880 DOI: 10.1002/advs.201600289] [Citation(s) in RCA: 140] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 08/29/2016] [Indexed: 05/19/2023]
Abstract
Typical layered transition-metal chalcogenide materials, in particular layered molybdenum disulfide (MoS2) nanocomposites, have attracted increasing attention in recent years due to their excellent chemical and physical properties in various research fieldsHere, a general overview of synthetic MoS2 based nanocomposites via different preparation approaches and their applications in energy storage devices (Li-ion battery, Na-ion battery, and supercapacitor) is presented. The relationship between morphologies and the electrochemical performances of MoS2-based nanocomposites in the three typical and promising rechargeable systems is also discussed. Finally, perspectives on major challenges and opportunities faced by MoS2-based materials to address the practical problems of MoS2-based materials are presented.
Collapse
Affiliation(s)
- Tianyi Wang
- College of Chemistry and Chemical EngineeringYangzhou UniversityYangzhouJiangsu225002China
| | - Shuangqiang Chen
- Centre for Clean Energy TechnologySchool of Chemistry and Forensic ScienceUniversity of Technology Sydney BroadwaySydneyAustralia
| | - Huan Pang
- College of Chemistry and Chemical EngineeringYangzhou UniversityYangzhouJiangsu225002China
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education)Nankai UniversityTianjin300071China
| | - Huaiguo Xue
- College of Chemistry and Chemical EngineeringYangzhou UniversityYangzhouJiangsu225002China
| | - Yan Yu
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education)Nankai UniversityTianjin300071China
- Key Laboratory of Materials for Energy ConversionChinese Academy of SciencesDepartment of Materials Science and EngineeringUniversity of Science and Technology of ChinaHefeiAnhui230026China
| |
Collapse
|
38
|
Bulakhe RN, Nguyen VH, Shim JJ. Layer-structured nanohybrid MoS2@rGO on 3D nickel foam for high performance energy storage applications. NEW J CHEM 2017. [DOI: 10.1039/c6nj02590k] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
MoS2@reduced graphene oxide on 3D nickel foam was synthesized using an inexpensive room-temperature two-step method composed of the layer-by-layer method and solution-based successive ionic layer adsorption and reaction.
Collapse
Affiliation(s)
| | - Van Hoa Nguyen
- Department of Chemistry
- Nha Trang University
- Nha Trang
- Vietnam
| | - Jae-Jin Shim
- School of Chemical Engineering
- Yeungnam University
- Gyeongsan
- Republic of Korea
| |
Collapse
|
39
|
Zhang WJ, Huang KJ. A review of recent progress in molybdenum disulfide-based supercapacitors and batteries. Inorg Chem Front 2017. [DOI: 10.1039/c7qi00515f] [Citation(s) in RCA: 147] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This article reviews the recent progress in molybdenum disulfide-based supercapacitors and batteries.
Collapse
Affiliation(s)
- Wen-Jing Zhang
- College of Chemistry and Chemical Engineering
- Xinyang Normal University
- Xinyang 464000
- China
- Henan Province Key Laboratory of Utilization of Non-metallic Mineral in the South of Henan
| | - Ke-Jing Huang
- College of Chemistry and Chemical Engineering
- Xinyang Normal University
- Xinyang 464000
- China
- Henan Province Key Laboratory of Utilization of Non-metallic Mineral in the South of Henan
| |
Collapse
|
40
|
Lv Z, Mahmood N, Tahir M, Pan L, Zhang X, Zou JJ. Fabrication of zero to three dimensional nanostructured molybdenum sulfides and their electrochemical and photocatalytic applications. NANOSCALE 2016; 8:18250-18269. [PMID: 27761550 DOI: 10.1039/c6nr06836g] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Transition metal dichalcogenides (TMDs) are emerging as promising materials, particularly for electrochemical and photochemical catalytic applications, and among them molybdenum sulfides have received tremendous attention due to their novel electronic and optoelectronic characteristics. Several review articles have summarized the recent progress on TMDs but no critical and systematic summary exists about the nanoscale fabrication of MoS2 with different dimensional morphologies. In this review article, first we will summarize the recent progress on the morphological tuning and structural evolution of MoS2 from zero-dimension (0D) to 3D. Then the different engineering methods and the effect of synthesis conditions on structure and morphology of MoS2 will be discussed. Moreover, the corresponding change in the electronic and physicochemical properties of MoS2 induced by structure tuning will also be presented. Further, the applications of MoS2 in various electrochemical systems e.g. hydrogen evolution reaction (HER), oxygen reduction reaction (ORR), oxygen evolution reaction (OER) and supercapacitors as well as photocatalytic hydrogen evolution will be highlighted. The review article will also critically focus on challenges faced by researchers to tune the MoS2 nanostructures and the resulting electrochemical mechanism to enhance their performances. At the end, concluding remarks and future prospects for the development of better MoS2 based nanostructured materials for the aforementioned applications will be presented.
Collapse
Affiliation(s)
- Zhe Lv
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China.
| | - Nasir Mahmood
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China. and Center of Micro-Nano Functional Materials and Devices, School of Energy Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Muhammad Tahir
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China. and Department of Physics, The University of Lahore, 53700, Pakistan
| | - Lun Pan
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China.
| | - Xiangwen Zhang
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China.
| | - Ji-Jun Zou
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China.
| |
Collapse
|
41
|
Nanostructured MoS 2/BiVO 4 Composites for Energy Storage Applications. Sci Rep 2016; 6:36294. [PMID: 27808122 PMCID: PMC5093765 DOI: 10.1038/srep36294] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Accepted: 10/13/2016] [Indexed: 11/16/2022] Open
Abstract
We report the optimized synthesis and electrochemical characterization of a composite of few-layered nanostructured MoS2 along with an electroactive metal oxide BiVO4. In comparison to pristine BiVO4, and a composite of graphene/BiVO4, the MoS2/BiVO4 nanocomposite provides impressive values of charge storage with longer discharge times and improved cycling stability. Specific capacitance values of 610 Fg−1 (170 mAhg−1) at 1 Ag−1 and 166 Fg−1 (46 mAhg−1) at 10 Ag−1 were obtained for just 2.5 wt% MoS2 loaded BiVO4. The results suggest that the explicitly synthesized small lateral-dimensioned MoS2 particles provide a notable capacitive component that helps augment the specific capacitance. We discuss the optimized synthesis of monoclinic BiVO4, and few-layered nanostructured MoS2. We report the discharge capacities and cycling performance of the MoS2/BiVO4 nanocomposite using an aqueous electrolyte. The data obtained shows the MoS2/BiVO4 nanocomposite to be a promising candidate for supercapacitor energy storage applications.
Collapse
|
42
|
Xiao W, Zhou W, Feng T, Zhang Y, Liu H, Tian L. Simple Synthesis of Molybdenum Disulfide/Reduced Graphene Oxide Composite Hollow Microspheres as Supercapacitor Electrode Material. MATERIALS 2016; 9:ma9090783. [PMID: 28773904 PMCID: PMC5457065 DOI: 10.3390/ma9090783] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 09/08/2016] [Accepted: 09/12/2016] [Indexed: 11/16/2022]
Abstract
MoS2/RGO composite hollow microspheres were hydrothermally synthesized by using SiO2/GO microspheres as a template, which were obtained via the sonication-assisted interfacial self-assembly of tiny GO sheets on positively charged SiO2 microspheres. The structure, morphology, phase, and chemical composition of MoS2/RGO hollow microspheres were systematically investigated by a series of techniques such as FE-SEM, TEM, XRD, TGA, BET, and Raman characterizations, meanwhile, their electrochemical properties were carefully evaluated by CV, GCD, and EIS measurements. It was found that MoS2/RGO hollow microspheres possessed unique porous hollow architecture with high-level hierarchy and large specific surface area up to 63.7 m2·g−1. When used as supercapacitor electrode material, MoS2/RGO hollow microspheres delivered a maximum specific capacitance of 218.1 F·g−1 at the current density of 1 A·g−1, which was much higher than that of contrastive bare MoS2 microspheres developed in the present work and most of other reported MoS2-based materials. The enhancement of supercapacitive behaviors of MoS2/RGO hollow microspheres was likely due to the improved conductivity together with their distinct structure and morphology, which not only promoted the charge transport but also facilitated the electrolyte diffusion. Moreover, MoS2/RGO hollow microsphere electrode displayed satisfactory long-term stability with 91.8% retention of the initial capacitance after 1000 charge/discharge cycles at the current density of 3 A·g−1, showing excellent application potential.
Collapse
Affiliation(s)
- Wei Xiao
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Yongchuan, Chongqing 402160, China.
| | - Wenjie Zhou
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Yongchuan, Chongqing 402160, China.
| | - Tong Feng
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Yongchuan, Chongqing 402160, China.
| | - Yanhua Zhang
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Yongchuan, Chongqing 402160, China.
| | - Hongdong Liu
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Yongchuan, Chongqing 402160, China.
| | - Liangliang Tian
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Yongchuan, Chongqing 402160, China.
| |
Collapse
|
43
|
Liu F, Jiang Y, Yang J, Hao M, Tong Z, Jiang L, Wu Z. MoS2 nanodot decorated In2S3 nanoplates: a novel heterojunction with enhanced photoelectrochemical performance. Chem Commun (Camb) 2016; 52:1867-70. [PMID: 26673751 DOI: 10.1039/c5cc09601d] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
MoS2 nanodot decorated In2S3 nanoplates were successfully synthesized via a modified one-pot method. The In2S3/MoS2 heterojunction nanocomposite exhibits superior optical and photoelectrochemical performance to the bare ones, owing to the synergistic effect.
Collapse
Affiliation(s)
- Fangyang Liu
- School of Metallurgy and Environment, Central South University, Changsha 410083, China and School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney 2052, Australia
| | - Yan Jiang
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Jia Yang
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Mengmeng Hao
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Zhengfu Tong
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Liangxing Jiang
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Zhuangzhi Wu
- School of Material Science and Engineering, Central South University, Changsha 410083, China.
| |
Collapse
|
44
|
Lai W, Chen Z, Zhu J, Yang L, Zheng J, Yi X, Fang W. A NiMoS flower-like structure with self-assembled nanosheets as high-performance hydrodesulfurization catalysts. NANOSCALE 2016; 8:3823-3833. [PMID: 26815736 DOI: 10.1039/c5nr08841k] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Uniform 3D NiMoS nanoflowers with self-assembled nanosheets were successfully synthesized via a simple hydrothermal growth method using cheap and nontoxic elemental sulfur as sulfur sources. The structure and morphology of the nanomaterials were characterized by SEM, TEM, XRD, Raman and XPS analyses, revealing that the NiMoS nanoflowers were composed of ultrathin nanosheets with a thickness of approximately 6-12 nm. The HRTEM results indicate that the curve/short MoS2 slabs on the nanosheets possess the characteristics of dislocations, distortions and discontinuity, which suggests a defect-rich structure, resulting in the exposure of additional Ni-Mo-S edge sites. The obtained NiMoS nanoflowers exhibited an excellent activity for thiophene hydrodesulfurization (HDS) and 4,6-dimethyldibenzothiophene deep HDS due to their high density of active sites. The outstanding HDS performance suggests that these NiMoS composites with a unique flower-like nanostructure could be useful as promising catalysts for deep desulfurization of fuel oils.
Collapse
Affiliation(s)
- Weikun Lai
- National Engineering Laboratory for Green Chemical Productions of Alcohols-ethers-esters, State Key Laboratory for Physical Chemistry of the Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
| | | | | | | | | | | | | |
Collapse
|
45
|
Patil UM, Nam MS, Kang S, Sohn JS, Sim HB, Kang S, Jun SC. Fabrication of ultra-high energy and power asymmetric supercapacitors based on hybrid 2D MoS2/graphene oxide composite electrodes: a binder-free approach. RSC Adv 2016. [DOI: 10.1039/c6ra00670a] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Two-dimensional (2D) materials, graphene oxide (GO) and layered molybdenum disulfide (MoS2) nanosheets composite have been potentially investigated as novel energy storage materials due to their unique physicochemical properties.
Collapse
Affiliation(s)
- Umakant M. Patil
- Department of Mechanical Engineering
- Yonsei University
- Seoul 120-749
- Korea
| | - Min Sik Nam
- Department of Mechanical Engineering
- Yonsei University
- Seoul 120-749
- Korea
| | | | - Ji Soo Sohn
- Department of Mechanical Engineering
- Yonsei University
- Seoul 120-749
- Korea
| | - Heung Bo Sim
- Department of Mechanical Engineering
- Yonsei University
- Seoul 120-749
- Korea
| | - Shinill Kang
- Department of Mechanical Engineering
- Yonsei University
- Seoul 120-749
- Korea
| | - Seong Chan Jun
- Department of Mechanical Engineering
- Yonsei University
- Seoul 120-749
- Korea
| |
Collapse
|
46
|
Xie B, Chen Y, Yu M, Zhang S, Lu L, Shu Z, Zhang Y. Phosphoric acid-assisted synthesis of layered MoS2/graphene hybrids with electrolyte-dependent supercapacitive behaviors. RSC Adv 2016. [DOI: 10.1039/c6ra17109e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An electrolyte-dependent behavior (greatly differ in pseudocapacitance) was investigated in the modified freestanding layered MoS2/graphene hybrid.
Collapse
Affiliation(s)
- Bingqiao Xie
- Engineering Research Center of Nano-Geomaterials of Ministry of Education
- Department of Materials
- China University of Geosciences
- Wuhan 430074
- China
| | - Ying Chen
- Engineering Research Center of Nano-Geomaterials of Ministry of Education
- Department of Materials
- China University of Geosciences
- Wuhan 430074
- China
| | - Mengying Yu
- Engineering Research Center of Nano-Geomaterials of Ministry of Education
- Department of Materials
- China University of Geosciences
- Wuhan 430074
- China
| | - Shanshan Zhang
- Engineering Research Center of Nano-Geomaterials of Ministry of Education
- Department of Materials
- China University of Geosciences
- Wuhan 430074
- China
| | - Luhua Lu
- Engineering Research Center of Nano-Geomaterials of Ministry of Education
- Department of Materials
- China University of Geosciences
- Wuhan 430074
- China
| | - Zhu Shu
- Engineering Research Center of Nano-Geomaterials of Ministry of Education
- Department of Materials
- China University of Geosciences
- Wuhan 430074
- China
| | - Yong Zhang
- School of Materials Science and Engineering
- Hefei University of Technology
- Hefei
- China
- Key Laboratory of Advanced Functional Materials and Devices of Anhui Province
| |
Collapse
|
47
|
Nam MS, Patil U, Park B, Sim HB, Jun SC. A binder free synthesis of 1D PANI and 2D MoS2 nanostructured hybrid composite electrodes by the electrophoretic deposition (EPD) method for supercapacitor application. RSC Adv 2016. [DOI: 10.1039/c6ra16078f] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A facile, binder-free electrophoretic deposition (EPD) method is applied to fabricate large-scale, hybrid 2D MoS2 nanosheets and 1D polyaniline (PANI) nanowires based electrodes for supercapacitor applications.
Collapse
Affiliation(s)
- Min Sik Nam
- Nano-Electro Mechanical Device Laboratory
- School of Mechanical Engineering
- Yonsei University
- Seoul 120-749
- South Korea
| | - Umakant Patil
- Nano-Electro Mechanical Device Laboratory
- School of Mechanical Engineering
- Yonsei University
- Seoul 120-749
- South Korea
| | - Byeongho Park
- Nano-Electro Mechanical Device Laboratory
- School of Mechanical Engineering
- Yonsei University
- Seoul 120-749
- South Korea
| | - Heung Bo Sim
- Nano-Electro Mechanical Device Laboratory
- School of Mechanical Engineering
- Yonsei University
- Seoul 120-749
- South Korea
| | - Seong Chan Jun
- Nano-Electro Mechanical Device Laboratory
- School of Mechanical Engineering
- Yonsei University
- Seoul 120-749
- South Korea
| |
Collapse
|
48
|
Zhang N, Xu YJ. The endeavour to advance graphene–semiconductor composite-based photocatalysis. CrystEngComm 2016. [DOI: 10.1039/c5ce01712b] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
49
|
Ma L, Xu L, Zhou X, Xu X, Zhang L. Synthesis of a hierarchical MoSe2/C hybrid with enhanced electrochemical performance for supercapacitors. RSC Adv 2016. [DOI: 10.1039/c6ra16157j] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
A facile one-step hydrothermal strategy was successfully developed to fabricate a 3D hierarchical MoSe2/C hybrid with triethylene glycol as a structure-directing agent and carbon source.
Collapse
Affiliation(s)
- Lin Ma
- School of Chemistry and Chemical Engineering
- Institute of Physical Chemistry
- Development Center for New Materials Engineering & Technology in Universities of Guangdong
- Lingnan Normal University
- Zhanjiang 524048
| | - Limei Xu
- School of Chemistry and Chemical Engineering
- Institute of Physical Chemistry
- Development Center for New Materials Engineering & Technology in Universities of Guangdong
- Lingnan Normal University
- Zhanjiang 524048
| | - Xiaoping Zhou
- School of Chemistry and Chemical Engineering
- Institute of Physical Chemistry
- Development Center for New Materials Engineering & Technology in Universities of Guangdong
- Lingnan Normal University
- Zhanjiang 524048
| | - Xuyao Xu
- School of Chemistry and Chemical Engineering
- Institute of Physical Chemistry
- Development Center for New Materials Engineering & Technology in Universities of Guangdong
- Lingnan Normal University
- Zhanjiang 524048
| | - Lingling Zhang
- School of Chemistry and Chemical Engineering
- Institute of Physical Chemistry
- Development Center for New Materials Engineering & Technology in Universities of Guangdong
- Lingnan Normal University
- Zhanjiang 524048
| |
Collapse
|
50
|
Thangappan R, Kalaiselvam S, Elayaperumal A, Jayavel R, Arivanandhan M, Karthikeyan R, Hayakawa Y. Graphene decorated with MoS2 nanosheets: a synergetic energy storage composite electrode for supercapacitor applications. Dalton Trans 2016; 45:2637-46. [DOI: 10.1039/c5dt04832j] [Citation(s) in RCA: 164] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The synergistic effect of MoS2 and graphene with a specific capacitance of 270 F g−1 for the use of a higher performance energy storage composite electrode for supercapacitors is reported.
Collapse
Affiliation(s)
- R. Thangappan
- Centre for Nanoscience and Technology
- Anna University
- Chennai-25
- India
| | - S. Kalaiselvam
- Department of Applied Science and Technology
- Anna University
- Chennai-25
- India
| | - A. Elayaperumal
- Department of Mechanical Engineering
- Anna University
- Chennai-25
- India
| | - R. Jayavel
- Centre for Nanoscience and Technology
- Anna University
- Chennai-25
- India
| | - M. Arivanandhan
- Centre for Nanoscience and Technology
- Anna University
- Chennai-25
- India
| | - R. Karthikeyan
- Graduate School of Science and Technology
- Shizuoka University
- Hamamatsu
- Japan
| | - Y. Hayakawa
- Graduate School of Science and Technology
- Shizuoka University
- Hamamatsu
- Japan
- Research Institute of Electronics
| |
Collapse
|