1
|
Mohammed Al-antaki AH, Kellici S, Power NP, Lawrance WD, Raston CL. Continuous flow vortex fluidic-mediated exfoliation and fragmentation of two-dimensional MXene. ROYAL SOCIETY OPEN SCIENCE 2020; 7:192255. [PMID: 32537213 PMCID: PMC7277261 DOI: 10.1098/rsos.192255] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 03/30/2020] [Indexed: 05/06/2023]
Abstract
MXene (Ti2CT x ) is exfoliated in a vortex fluidic device (VFD), as a thin film microfluidic platform, under continuous flow conditions, down to ca 3 nm thin multi-layered two-dimensional (2D) material, as determined using AFM. The optimized process, under an inert atmosphere of nitrogen to avoid oxidation of the material, was established by systematically exploring the operating parameters of the VFD, along with the concentration of the dispersed starting material and the choice of solvent, which was a 1 : 1 mixture of isopropyl alcohol and water. There is also some fragmentation of the 2D material into nanoparticles ca 68 nm in diameter.
Collapse
Affiliation(s)
- Ahmed Hussein Mohammed Al-antaki
- Flinders Institute for Nanoscale Science and Technology, College of Science and Engineering, Flinders University, Adelaide, South Australia 5042, Australia
- Department of Chemistry, Faculty of Sciences, University of Kufa, Kufa, Najaf, Iraq
| | - Suela Kellici
- School of Engineering, London South Bank University, 103 Borough Road, London SE1 0AA, UK
| | - Nicholas P. Power
- School of Life, Health and Chemical Sciences, The Open University, Walton Hall, Milton Keynes MK7 6AA, UK
| | - Warren D. Lawrance
- College of Science and Engineering, Flinders University, Adelaide, South Australia 5042, Australia
| | - Colin L. Raston
- Flinders Institute for Nanoscale Science and Technology, College of Science and Engineering, Flinders University, Adelaide, South Australia 5042, Australia
- Author for correspondence: Colin L. Raston e-mail:
| |
Collapse
|
2
|
Al-Antaki AHM, Lawrance WD, Raston CL. Dynamic thin film mediated slicing of boron nitride nanotubes. NANOSCALE ADVANCES 2019; 1:4722-4728. [PMID: 36133138 PMCID: PMC9417105 DOI: 10.1039/c9na00481e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 10/14/2019] [Indexed: 06/16/2023]
Abstract
A method has been developed to slice boron nitride nanotubes BNNTs under continuous flow in a vortex fluidic device (VFD), along with a method to partially purify the as received BNNT containing material. The latter involves heating the BNNTs to 600 °C followed by dispersing in a 1 : 3 isopropyl alcohol (IPA) and water mixture at 100 °C. The VFD mediated slicing of the BNNTs comprises irradiating the rapidly rotating glass tube (20 mm OD) with a pulsed Nd:YAG laser. Systematically exploring the operating parameter space of the VFD established slicing of ca. 200 μm long purified BNNTs down to 340 nm to 400 nm, in ca. 53% yield, in a 1 : 1 mixture of IPA and water, in the absence of reagents/harsh chemicals, at a flow rate of 0.45 mL min-1, a concentration of 0.1 mg mL-1 BNNTs and an 8.5k rpm rotational speed, with the pulsed laser operating at 1064 nm and 250 mJ per pulse.
Collapse
Affiliation(s)
- Ahmed Hussein Mohammed Al-Antaki
- Flinders Institute for Nanoscale Science and Technology, College of Science and Engineering, Flinders University Adelaide SA 5042 Australia
- Department of Chemistry, Faculty of Sciences, Kufa University Kufa Najaf Iraq
| | - Warren D Lawrance
- College of Science and Engineering, Flinders University Adelaide SA 5042 Australia
| | - Colin L Raston
- Flinders Institute for Nanoscale Science and Technology, College of Science and Engineering, Flinders University Adelaide SA 5042 Australia
| |
Collapse
|
3
|
Alharbi TMD, Al-Antaki AHM, Moussa M, Hutchison WD, Raston CL. Three-step-in-one synthesis of supercapacitor MWCNT superparamagnetic magnetite composite material under flow. NANOSCALE ADVANCES 2019; 1:3761-3770. [PMID: 36133547 PMCID: PMC9419492 DOI: 10.1039/c9na00346k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Accepted: 08/16/2019] [Indexed: 06/10/2023]
Abstract
Composites of multi-walled carbon nanotubes (MWCNTs) and superparamagnetic magnetite nanoparticles, Fe3O4@MWCNT, were synthesized in DMF in a vortex fluidic device (VFD). This involved in situ generation of the iron oxide nanoparticles by laser ablation of bulk iron metal at 1064 nm using a pulsed laser, over the dynamic thin film in the microfluidic platform. The overall processing is a three-step in one operation: (i) slicing MWCNTs, (ii) generating the superparamagnetic nanoparticles and (iii) decorating them on the surface of the MWCNTs. The Fe3O4@MWCNT composites were characterized by transmission electron microscopy, scanning transmission electron microscope, TG analysis, X-ray diffraction and X-ray photoelectron spectroscopy. They were used as an active electrode for supercapacitor measurements, establishing high gravimetric and areal capacitances of 834 F g-1 and 1317.7 mF cm-2 at a scan rate of 10 mV s-1, respectively, which are higher values than those reported using similar materials. In addition, the designer material has a significantly higher specific energy of 115.84 W h kg-1 at a specific power of 2085 W kg-1, thereby showing promise for the material in next-generation energy storage devices.
Collapse
Affiliation(s)
- Thaar M D Alharbi
- Flinders Institute for Nanoscale Science and Technology, College of Science and Engineering, Flinders University Adelaide SA 5001 Australia
- Physics Department, Faculty of Science, Taibah University Almadinah Almunawarah Saudi Arabia
| | - Ahmed H M Al-Antaki
- Flinders Institute for Nanoscale Science and Technology, College of Science and Engineering, Flinders University Adelaide SA 5001 Australia
| | - Mahmoud Moussa
- School of Chemical Engineering and Advanced Materials, The University of Adelaide Adelaide SA 5001 Australia
| | - Wayne D Hutchison
- School of Science, University of New South Wales ADFA campus Canberra BC Australian Capital Territory 2610 Australia
| | - Colin L Raston
- Flinders Institute for Nanoscale Science and Technology, College of Science and Engineering, Flinders University Adelaide SA 5001 Australia
| |
Collapse
|
4
|
Al-Antaki AM, Luo X, Duan X, Lamb RN, Hutchison WD, Lawrance W, Raston CL. Continuous Flow Copper Laser Ablation Synthesis of Copper(I and II) Oxide Nanoparticles in Water. ACS OMEGA 2019; 4:13577-13584. [PMID: 31460487 PMCID: PMC6705240 DOI: 10.1021/acsomega.9b01983] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 07/18/2019] [Indexed: 05/22/2023]
Abstract
Copper(I) oxide (Cu2O) nanoparticles (NPs) are selectively prepared in high yields under continuous flow in a vortex fluidic device (VFD), involving irradiation of a copper rod using a pulsed laser operating at 1064 nm and 600 mJ. The plasma plume generated inside a glass tube (20 mm O.D.), which is rapidly rotating (7.5 k rpm), reacts with the enclosed air in the microfluidic platform, with then high mass transfer of material into the dynamic thin film of water passing up the tube. The average size of the generated Cu2ONPs is 14 nm, and they are converted to copper(II) oxide (CuO) nanoparticles with an average diameter of 11 nm by heating the as-prepared solution of Cu2ONPs in air at 50 °C for 10 h.
Collapse
Affiliation(s)
- Ahmed
Hussein Mohammed Al-Antaki
- Flinders
Institute for Nanoscale Science and Technology, College
of Science and Engineering, Centre for Marine Bioproducts Development, College
of Medicine and Public Health and College of Science and Engineering, Flinders University, Adelaide, SA 5042, Australia
- Department of Chemistry, Faculty
of Sciences, Kufa University, Kufa, 54001 Najaf, Iraq
| | - Xuan Luo
- Flinders
Institute for Nanoscale Science and Technology, College
of Science and Engineering, Centre for Marine Bioproducts Development, College
of Medicine and Public Health and College of Science and Engineering, Flinders University, Adelaide, SA 5042, Australia
| | - XiaoFei Duan
- Trace
Analysis for Chemical, Earth and Environmental Sciences (TrACEES), University of Melbourne, Melbourne, VIC 3010, Australia
| | - Robert N. Lamb
- Trace
Analysis for Chemical, Earth and Environmental Sciences (TrACEES), University of Melbourne, Melbourne, VIC 3010, Australia
| | - Wayne D. Hutchison
- School of
Science, University of New South Wales, ADFA campus, Canberra BC, ACT 2610, Australia
| | - Warren Lawrance
- Flinders
Institute for Nanoscale Science and Technology, College
of Science and Engineering, Centre for Marine Bioproducts Development, College
of Medicine and Public Health and College of Science and Engineering, Flinders University, Adelaide, SA 5042, Australia
| | - Colin L. Raston
- Flinders
Institute for Nanoscale Science and Technology, College
of Science and Engineering, Centre for Marine Bioproducts Development, College
of Medicine and Public Health and College of Science and Engineering, Flinders University, Adelaide, SA 5042, Australia
| |
Collapse
|
5
|
Al-Antaki AHM, Luo X, Alharbi TMD, Harvey DP, Pye S, Zou J, Lawrance W, Raston CL. Inverted vortex fluidic exfoliation and scrolling of hexagonal-boron nitride. RSC Adv 2019; 9:22074-22079. [PMID: 35518882 PMCID: PMC9066649 DOI: 10.1039/c9ra03970h] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Accepted: 07/05/2019] [Indexed: 01/21/2023] Open
Abstract
Exfoliation or scrolling of hexagonal boron nitride (h-BN) occurs in a vortex fluidic device (VFD) operating under continuous flow, with a tilt angle of −45° relative to the horizontal position. This new VFD processing strategy is effective in avoiding the build-up of material that occurs when the device is operated using the conventional tilt angle of +45°, where the h-BN precursor and scrolls are centrifugally held against the wall of the tube. At a tilt angle of −45° the downward flow aided by gravity facilitates material exiting the tube with the exfoliation of h-BN and formation of h-BN scrolls then optimized by systematically varying the other VFD operating parameters, including flow rate and rotational speed, along with concentration of h-BN and the choice of solvent. Water was the most effective solvent, which enhances the green chemistry metrics of the processing. Exfoliation or scrolling of h-BN occurs in a vortex fluidic device under downward continuous flow.![]()
Collapse
Affiliation(s)
| | - Xuan Luo
- Flinders Institute for Nanoscale Science and Technology
- College of Science and Engineering
- Flinders University
- Adelaide
- Australia
| | - Thaar M. D. Alharbi
- Flinders Institute for Nanoscale Science and Technology
- College of Science and Engineering
- Flinders University
- Adelaide
- Australia
| | - David P. Harvey
- Flinders Institute for Nanoscale Science and Technology
- College of Science and Engineering
- Flinders University
- Adelaide
- Australia
| | - Scott Pye
- Flinders Institute for Nanoscale Science and Technology
- College of Science and Engineering
- Flinders University
- Adelaide
- Australia
| | - Jin Zou
- Materials Engineering
- Centre for Microscopy and Microanalysis
- The University of Queensland
- Brisbane
- Australia
| | - Warren Lawrance
- College of Science and Engineering
- Flinders University
- Adelaide
- Australia
| | - Colin L. Raston
- Flinders Institute for Nanoscale Science and Technology
- College of Science and Engineering
- Flinders University
- Adelaide
- Australia
| |
Collapse
|