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Zhang CJ, McKeon L, Kremer MP, Park SH, Ronan O, Seral-Ascaso A, Barwich S, Coileáin CÓ, McEvoy N, Nerl HC, Anasori B, Coleman JN, Gogotsi Y, Nicolosi V. Additive-free MXene inks and direct printing of micro-supercapacitors. Nat Commun 2019; 10:1795. [PMID: 30996224 PMCID: PMC6470171 DOI: 10.1038/s41467-019-09398-1] [Citation(s) in RCA: 267] [Impact Index Per Article: 53.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 03/08/2019] [Indexed: 11/26/2022] Open
Abstract
Direct printing of functional inks is critical for applications in diverse areas including electrochemical energy storage, smart electronics and healthcare. However, the available printable ink formulations are far from ideal. Either surfactants/additives are typically involved or the ink concentration is low, which add complexity to the manufacturing and compromises the printing resolution. Here, we demonstrate two types of two-dimensional titanium carbide (Ti3C2Tx) MXene inks, aqueous and organic in the absence of any additive or binary-solvent systems, for extrusion printing and inkjet printing, respectively. We show examples of all-MXene-printed structures, such as micro-supercapacitors, conductive tracks and ohmic resistors on untreated plastic and paper substrates, with high printing resolution and spatial uniformity. The volumetric capacitance and energy density of the all-MXene-printed micro-supercapacitors are orders of magnitude greater than existing inkjet/extrusion-printed active materials. The versatile direct-ink-printing technique highlights the promise of additive-free MXene inks for scalable fabrication of easy-to-integrate components of printable electronics. Printing functional inks is attractive for applications in electrochemical energy storage and smart electronics, among others. Here the authors report highly concentrated, additive-free, aqueous and organic MXene-based inks that can be used for high-resolution extrusion and inkjet printing.
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Affiliation(s)
- Chuanfang John Zhang
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland. .,School of Chemistry, Trinity College Dublin, Dublin 2, Ireland.
| | - Lorcan McKeon
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland.,School of Physics, Trinity College Dublin, Dublin 2, Ireland
| | - Matthias P Kremer
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland.,School of Chemistry, Trinity College Dublin, Dublin 2, Ireland.,I-FORM Advanced Manufacturing Research Centre, Trinity College Dublin, Dublin 2, Ireland
| | - Sang-Hoon Park
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland.,School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Oskar Ronan
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland.,School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Andrés Seral-Ascaso
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland.,School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Sebastian Barwich
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland.,School of Physics, Trinity College Dublin, Dublin 2, Ireland
| | - Cormac Ó Coileáin
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland.,School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Niall McEvoy
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland.,School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Hannah C Nerl
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland.,School of Physics, Trinity College Dublin, Dublin 2, Ireland
| | - Babak Anasori
- A.J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, USA
| | - Jonathan N Coleman
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland.,School of Physics, Trinity College Dublin, Dublin 2, Ireland
| | - Yury Gogotsi
- A.J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, USA.
| | - Valeria Nicolosi
- CRANN and AMBER Research Centers, Trinity College Dublin, Dublin 2, Ireland. .,School of Chemistry, Trinity College Dublin, Dublin 2, Ireland. .,I-FORM Advanced Manufacturing Research Centre, Trinity College Dublin, Dublin 2, Ireland.
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Wang Z, Zhu H, Wang X, Yang F, Yang X. One-pot green synthesis of biocompatible arginine-stabilized magnetic nanoparticles. NANOTECHNOLOGY 2009; 20:465606. [PMID: 19847022 DOI: 10.1088/0957-4484/20/46/465606] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A green one-step approach has been developed for the synthesis of amino-functionalized magnetite nanoparticles. The synthesis was accomplished by simply mixing FeCl2 with arginine under ambient conditions. It was found that the Fe2+/arginine molar ratio, reaction duration and temperature greatly influence the size, morphology and composition of magnetic nanoparticles. The arginine-stabilized magnetic nanoparticles were characterized by transmission electron microscopy, x-ray diffraction, x-ray photoelectron spectroscopy, thermogravimetric analysis, and Fourier transform infrared spectroscopy techniques. The results show that the prepared nanoparticles are spherically shaped with a nearly uniform size distribution and pure magnetite phase. The presence of arginine on the magnetic nanoparticle surface has been confirmed and the amount of surface arginine varies with the Fe2+/arginine molar ratio. The surface amine densities are calculated to be 5.60 and 7.84 micromol mg(-1) for magnetic nanoparticles prepared at 1:1 and 1:2 Fe2+/arginine molar ratio, respectively. The as-synthesized nanoparticles show superparamagnetic behavior at room temperature and good solubility in water. In addition, using a similar synthesis procedure, we have been able to synthesize superparamagnetic manganese and cobalt ferrite nanoparticles.
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Affiliation(s)
- Zhongjun Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, People's Republic of China
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Jedlicka SS, Rickus JL, Zemlyanov DY. Surface Analysis by X-ray Photoelectron Spectroscopy of Sol−Gel Silica Modified with Covalently Bound Peptides. J Phys Chem B 2007; 111:11850-7. [PMID: 17880200 DOI: 10.1021/jp0744230] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Chemical surface characterization of biologically modified sol-gel derived silica is critical but somewhat limited. This work demonstrates the ability of x-ray photoelectron spectroscopy (XPS) to characterize the surface chemistry of peptide modified sol-gel thin films based on the example of four different free peptide-silanes, denoted RGD, NID, KDI ,and YIG. The N 1s and C 1s peaks were found to be good fingerprints of the peptides, whereas O 1s overlapped with the signal of substrate oxygen and, therefore, the O 1s peak was not informative in the case of the thin films. The C 1s peak was fitted and the contribution of the residual hydrocarbons was sorted out. The curve-fitting procedure of the C 1s peak accounted for the different chemical states of carbon atoms in the peptide structure. The curve-fitting procedure was validated by analyzing free peptides in the powder form and was then applied to the characterization of the peptide-modified thin films. The XPS measured ratio between nitrogen and carbon for the peptide thin film was similar to the corresponding value calculated from the peptide structures. Angle resolved XPS confirmed the surface nature of peptides in modified thin films. The coverage and thickness of the peptides on the thin film surface depended on the peptide sequence. The coverage was in the range of 10% of a monolayer, and the layer thickness varied from 10 to 30 A. We believe that the different thicknesses and surface coverage are due to the local structure of the peptides, with the RGD and NID peptides taking a globule conformation and the YIG and KDI peptides adopting a more linear structure.
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Affiliation(s)
- Sabrina S Jedlicka
- Department of Agricultural & Biological Engineering, Purdue University, West Lafayette, IN 47907, USA
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Aslam M, Schultz EA, Tao S, Meade T, Dravid VP. Synthesis of Amine-stabilized Aqueous Colloidal Iron Oxide Nanoparticles. CRYSTAL GROWTH & DESIGN 2007; 7:471-475. [PMID: 19305647 PMCID: PMC2659353 DOI: 10.1021/cg060656p] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
We demonstrate a simple one-step process for the synthesis of iron oxide nanoparticle aqueous colloids using the multifunctional molecule, dodecylamine (DDA), that electrostatically complexes with aqueous iron ions (one precursor Fe(2+) from FeCl(2)), reduces them, and subsequently caps the nanoparticles. The iron oxide particles thus synthesized are of the face-centered cubic (FCC) phase with high degree of monodispersity with appropriate concentration of amine capping molecular layer. The aqueous magnetic nanocrystalline colloids were characterized by TEM, XRD, XPS, TGA/DTA and FTIR spectroscopy techniques. The relaxivity, stability, and hydrodynamic size of the nanoparticles were investigated for potential application in magnetic resonance imaging (MRI). The magnetic properties were also studied by using a superconducting quantum interference device (SQUID) magnetometer at room temperature. We believe that such simple one-step synthesis of biocompatible aqueous nanomagnetic colloids will have viable applications in biomedical imaging, diagnostics and therapeutics.
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Affiliation(s)
- M. Aslam
- Department of Materials Science and Engineering, and the International Institute for Nanotechnology, Northwestern University, Evanston, Illinois 60208
| | - Elise A. Schultz
- Department of Chemistry, Department of Biochemistry and Molecular and Cell Biology, Neurobiology and Physiology, Feinberg School of Medicine, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208
| | - Sun Tao
- Department of Materials Science and Engineering, and the International Institute for Nanotechnology, Northwestern University, Evanston, Illinois 60208
| | - Thomas Meade
- Department of Chemistry, Department of Biochemistry and Molecular and Cell Biology, Neurobiology and Physiology, Feinberg School of Medicine, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208
| | - Vinayak P. Dravid
- Department of Materials Science and Engineering, and the International Institute for Nanotechnology, Northwestern University, Evanston, Illinois 60208
- corresponding author:
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