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Welch BC, Antonio EN, Chaney TP, McIntee OM, Strzalka J, Bright VM, Greenberg AR, Segal-Peretz T, Toney M, George SM. Building Semipermeable Films One Monomer at a Time: Structural Advantages via Molecular Layer Deposition vs Interfacial Polymerization. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2024; 36:1362-1374. [PMID: 38370278 PMCID: PMC10870709 DOI: 10.1021/acs.chemmater.3c02519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 12/29/2023] [Accepted: 01/02/2024] [Indexed: 02/20/2024]
Abstract
Molecular layer deposition (MLD) provides the opportunity to perform condensation polymerization one vaporized monomer at a time for the creation of precise, selective nanofilms for desalination membranes. Here, we compare the structure, chemistry, and morphology of two types of commercial interfacial polymerzation (IP) membranes with lab-made MLD films. M-phenylenediamine (MPD) and trimesoyl chloride (TMC) produced a cross-linked, aromatic polyamide often used in reverse osmosis membranes at MLD growth rates of 2.9 Å/cycle at 115 °C. Likewise, piperazine (PIP) and TMC formed polypiperazine amide, a common selective layer in nanofiltration membranes, with MLD growth rates of 1.5 Å/cycle at 115 °C. Ellipsometry and X-ray reflectivity results suggest that the surface of the MLD films is comprised of polymer segments roughly two monomers in length, which are connected at one end to the cross-linked bulk layer. As a result of this structure as well as the triple-functionality of TMC, MPD-TMC had a temperature window of stable growth rate from 115 to 150 °C, which is unlike any non-cross-linked MLD chemistries reported in the literature. Compared to IP films, corresponding MLD films were denser and morphologically conformal, which suggests a reduction in void volumes; this explains the high degree of salt rejection and reduced flux previously observed for exceptionally thin MPD-TMC MLD membranes. Using X-ray photoelectron spectroscopy and infrared spectroscopy, MLD PIP-TMC films evidenced a completely cross-linked internal structure, which lacked amine and carboxyl groups, pointing to a hydrophobic bulk structure, ideal for optimized water flux. Grazing-incidence wide-angle X-ray scattering showed broad features in each polyamide with d-spacings of 5.0 Å in PIP-TMC compared to that of 3.8 Å in MPD-TMC. While MLD and IP films were structurally identical to PIP-TMC, MPD-TMC IP films had a structure that may have been altered by post-treatment compared to MLD films. These results provide foundational insights into the MLD process, structure-performance relationships, and membrane fabrication.
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Affiliation(s)
- Brian C. Welch
- Israel
Institute of Technology, Haifa 3200003, Israel
- University
of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Emma N. Antonio
- University
of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Thomas P. Chaney
- University
of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Olivia M. McIntee
- University
of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Joseph Strzalka
- Argonne
National Laboratory, Lemont, Illinois 60439, United States
| | - Victor M. Bright
- University
of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Alan R. Greenberg
- University
of Colorado Boulder, Boulder, Colorado 80309, United States
| | | | - Michael Toney
- University
of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Steven M. George
- University
of Colorado Boulder, Boulder, Colorado 80309, United States
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2
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Muriqi A, Nolan M. Role of titanium and organic precursors in molecular layer deposition of "titanicone" hybrid materials. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2022; 13:1240-1255. [PMID: 36415852 PMCID: PMC9644066 DOI: 10.3762/bjnano.13.103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 10/20/2022] [Indexed: 06/16/2023]
Abstract
The development of hybrid inorganic-organic films with well-controlled properties is important for many applications. Molecular layer deposition (MLD) allows the deposition of these hybrid films using sequential, self-limiting reactions, similar to atomic layer deposition (ALD). In this paper, we use first principles density functional theory (DFT) to investigate the growth mechanism of titanium-containing hybrid organic-inorganic MLD films, known as "titanicones". We investigate in detail the chemistry between the most common Ti precursors, namely titanium tetrachloride (TiCl4) and tetrakis(dimethylamido)titanium (Ti(DMA)4), and ethylene glycol (EG) and glycerol (GL) as the organic precursors. We analyse the impact of the substrate on the initial MLD reactions in titanicone film growth using three different surface models: anatase TiO2, rutile TiO2 and Al2O3. Calculated energetics show that while TiCl4 is reactive towards the anatase and rutile TiO2 surfaces, it is not reactive towards the Al2O3 surface. Ti(DMA)4 is reactive towards all surfaces. This is attributed to the stronger Ti-Cl bonds in TiCl4 compared to Ti-N bonds in Ti(DMA)4. Ti(DMA)4 also shows high reactivity to the organics compared to TiCl4. Double reactions of EG and GL with the TiCl3 species from TiCl4 and TiDMA species from Ti(DMA)4 are also explored to better understand the origin of the different thicknesses of EG-titanicone and GL-titanicone films observed in experimental work. We find that EG and GL coupled with TiCl4 can orient in a flat lying configuration on anatase while on rutile, the preferred orientation is upright. When combined with Ti(DMA)4, EG and GL prefer the flat lying configuration on all surfaces. This work shows that the choice of the surface and the metallic precursor has a major impact on the behaviour of organic species. DFT findings provide motivation to develop a low temperature rutile TiO2/titanicone film suggesting that the desired film growth could be achieved.
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Affiliation(s)
- Arbresha Muriqi
- Tyndall National Institute, University College Cork, Lee Maltings, T12 R5CP Cork, Ireland
| | - Michael Nolan
- Tyndall National Institute, University College Cork, Lee Maltings, T12 R5CP Cork, Ireland
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Romero M, Mombrú D, Pignanelli F, Faccio R, Mombrú AW. Hybrid Organic-Inorganic Materials and Interfaces With Mixed Ionic-Electronic Transport Properties: Advances in Experimental and Theoretical Approaches. Front Chem 2022; 10:892013. [PMID: 35494643 PMCID: PMC9039017 DOI: 10.3389/fchem.2022.892013] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 03/25/2022] [Indexed: 12/03/2022] Open
Abstract
The main goal of this mini-review is to provide an updated state-of-the-art of the hybrid organic-inorganic materials focusing mainly on interface phenomena involving ionic and electronic transport properties. First, we review the most relevant preparation techniques and the structural features of hybrid organic-inorganic materials prepared by solution-phase reaction of inorganic/organic precursor into organic/inorganic hosts and vapor-phase infiltration of the inorganic precursor into organic hosts and molecular layer deposition of organic precursor onto the inorganic surface. Particular emphasis is given to the advances in joint experimental and theoretical studies discussing diverse types of computational simulations for hybrid-organic materials and interfaces. We make a specific revision on the separately ionic, and electronic transport properties of these hybrid organic-inorganic materials focusing mostly on interface phenomena. Finally, we deepen into mixed ionic-electronic transport properties and provide our concluding remarks and give some perspectives about this growing field of research.
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Affiliation(s)
- Mariano Romero
- *Correspondence: Mariano Romero, ; Ricardo Faccio, ; Alvaro W. Mombrú,
| | | | | | - Ricardo Faccio
- *Correspondence: Mariano Romero, ; Ricardo Faccio, ; Alvaro W. Mombrú,
| | - Alvaro W. Mombrú
- *Correspondence: Mariano Romero, ; Ricardo Faccio, ; Alvaro W. Mombrú,
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4
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Muriqi A, Karppinen M, Nolan M. Role of terminal groups in aromatic molecules on the growth of Al 2O 3-based hybrid materials. Dalton Trans 2021; 50:17583-17593. [PMID: 34812457 DOI: 10.1039/d1dt03195c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Hybrid materials composed of organic and inorganic components offer the opportunity to develop interesting materials with well-controlled properties. Molecular Layer Deposition (MLD) is a suitable thin film deposition technique for the controlled growth of thin, conformal hybrid films. Despite the great interest in these materials, a detailed understanding of the atomistic mechanism of MLD film growth is still lacking. This paper presents a first principles investigation of the detailed mechanism of the growth of hybrid organic-inorganic thin films of aluminium oxide and aromatic molecules with different terminal groups deposited by MLD. We investigate the chemistry of the MLD process between the post-TMA pulse methyl-terminated Al2O3 surface and the homo- or hetero-bifunctional aromatic compounds with hydroxy (OH) and/or amino (NH2) terminal groups: hydroquinone (HQ), p-phenylenediamine (PD) and 4-aminophenol (AP). Double reactions of aromatic molecules with the alumina surface are also explored. We show that all aromatic precursor molecules bind favourably to the methyl terminated Al2O3, via formation of Al-O and Al-N bonds and CH4 elimination. While reaction energetics suggest a higher reactivity of the OH group with TMA in comparison to the NH2 group, which could enable the double reaction phenomenon for HQ, we propose that the upright configuration will be present so that the organic molecules are self-assembled in an upright configuration, which leads to thicker hybrid films. Interactions between the methyl-terminated Al2O3 with substituted phenyls are investigated to examine the influence of phenyl functionalisation on the chemistry of the terminal groups. Reaction energetics show that phenyl functionalization actually promotes an upright configuration of the molecule, which leads to thicker and more flexible films, as well as tuning the properties of the aromatic components of the hybrid films. We also investigate the interactions between methyl-terminated Al2O3 with new possible MLD organic precursors, hydroquinone bis(2-hydroxyethyl)ether and 1,1'-biphenyl-4,4'-diamine. DFT shows that both aromatic molecules react favourably with TMA and are worthy of further experimental investigation.
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Affiliation(s)
- Arbresha Muriqi
- Tyndall National Institute, Lee Maltings Complex Dyke Parade, Cork, Cork, T12 R5CP, Ireland.
| | - Maarit Karppinen
- Department of Chemistry and Materials Science, Aalto University, FI-00076 Espoo, Finland
| | - Michael Nolan
- Tyndall National Institute, Lee Maltings Complex Dyke Parade, Cork, Cork, T12 R5CP, Ireland.
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5
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Niemelä JP, Rohbeck N, Michler J, Utke I. Molecular layer deposited alucone thin films from long-chain organic precursors: from brittle to ductile mechanical characteristics. Dalton Trans 2020; 49:10832-10838. [PMID: 32700705 DOI: 10.1039/d0dt02210a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Molecular layer deposition (MLD) is a strongly emerging thin-film technique for deposition of ultra-thin inorganic-organic hybrid ("metalcone") coatings directly from the gas phase, even on complex three-dimensional surfaces. In particular alucones (Al-based hybrids) have been found interesting e.g. for Li-ion battery and gas-barrier applications owing to the promise for enhanced mechanical performance provided by the organic fragments in the materials' structure. However, the metalcones based on short/small organic fragments are relatively brittle from the mechanical perspective. Here, we demonstrate an efficient approach for tailoring mechanical properties of MLD-fabricated hybrid inorganic-organic thin films through control over the organic precursor chain length. The proof-of-concept data is presented for alucones prepared using trimethyl aluminum together with 1,6-hexanediol or 1,10-decanediol as the precursors. Tensile testing coupled with in situ optical microscopy reveals a gradual increase in stretchability with the increasing chain length, such that the crack onset strain value of 9.9 ± 0.2% is obtained for the 1,10-decanediol-based 100 nm-thick film. Through the demonstration of substantially suppressed crack propagation-as a sign of brittle-to-ductile transition-and the decrease in the elastic modulus value down to 4.6 ± 2.1 GPa, the mechanical performance of the alucone family is extended to the polymeric regime. The substantial increase in the mechanical performance within the metalcone material family makes the results particularly interesting for high-capacity high-volume-change battery electrodes requiring mechanically highly robust coatings.
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Affiliation(s)
- Janne-Petteri Niemelä
- Laboratory for Mechanics of Materials and Nanostructures, Empa - Swiss Federal Laboratories for Materials Science and Technology, Feuerwerkerstrasse 39, Thun CH-3602, Switzerland.
| | - Nadia Rohbeck
- Laboratory for Mechanics of Materials and Nanostructures, Empa - Swiss Federal Laboratories for Materials Science and Technology, Feuerwerkerstrasse 39, Thun CH-3602, Switzerland.
| | - Johann Michler
- Laboratory for Mechanics of Materials and Nanostructures, Empa - Swiss Federal Laboratories for Materials Science and Technology, Feuerwerkerstrasse 39, Thun CH-3602, Switzerland.
| | - Ivo Utke
- Laboratory for Mechanics of Materials and Nanostructures, Empa - Swiss Federal Laboratories for Materials Science and Technology, Feuerwerkerstrasse 39, Thun CH-3602, Switzerland.
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6
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Muriqi A, Nolan M. First principles study of reactions in alucone growth: the role of the organic precursor. Dalton Trans 2020; 49:8710-8721. [PMID: 32555896 DOI: 10.1039/d0dt01376e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Organic-inorganic hybrid materials are a unique class of materials with properties driven by the organic and inorganic components, making them useful for flexible devices. Molecular layer deposition (MLD) offers novel pathways for the fabrication of such hybrids by using inorganic metal precursors and the vast range of organic molecules with tunable properties. To investigate and understand the mechanism of growth a combination of theoretical and experimental data is needed. In this contribution, we present a first principles investigation of the molecular mechanism of the growth of hybrid organic-inorganic thin films of aluminium alkoxides, known as "alucones" grown by MLD. We explore the interactions between precursors by analyzing the MLD reaction products of the alumina surface terminated with Al(CH3) groups after the trimethyl aluminium pulse; this yields monomethyl-Al2O3 (Al-CH3-Al2O3) and dimethyl-Al2O3 (Al(CH3)2-Al2O3) terminated surfaces. The organic precursors are ethylene glycol (EG), diethylene glycol (DEG), triethylene glycol (TEG) and tetraethylene glycol (FEG). A detailed comparison with alucones grown with ethylene glycol (EG) and glycerol (GL) precursors is presented to assist the interpretation of experimental findings regarding the differences in the hybrid films grown by EG and GL. The results show that Al-O formation with release of methane is favorable for all precursors. EG and GL can lie flat and create so-called double reactions through the reaction of the two terminal hydroxyl groups with the surface fragments. This phenomenon removes active hydroxyl sites for EG. However, for GL the third hydroxyl group is available and growth can proceed. This analysis shows the origin of differences in thickness of alucones found for EG and GL.
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Affiliation(s)
- Arbresha Muriqi
- Tyndall National Institute, University College Cork, Lee Maltings, Dyke Parade, Cork T12 R5CP, Ireland.
| | - Michael Nolan
- Tyndall National Institute, University College Cork, Lee Maltings, Dyke Parade, Cork T12 R5CP, Ireland.
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Meng J, Liu X, Niu C, Pang Q, Li J, Liu F, Liu Z, Mai L. Advances in metal-organic framework coatings: versatile synthesis and broad applications. Chem Soc Rev 2020; 49:3142-3186. [PMID: 32249862 DOI: 10.1039/c9cs00806c] [Citation(s) in RCA: 172] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Metal-organic frameworks (MOFs) as a new kind of porous crystalline materials have attracted much interest in many applications due to their high porosity, diverse structures, and controllable chemical structures. However, the specific geometrical morphologies, limited functions and unsatisfactory performances of pure MOFs hinder their further applications. In recent years, an efficient approach to synthesize new composites to overcome the above issues has been achieved, by integrating MOF coatings with other functional materials, which have synergistic advantages in many potential applications, including batteries, supercapacitors, catalysis, gas storage and separation, sensors, drug delivery/cytoprotection and so on. Nevertheless, the systemic synthesis strategies and the relationships between their structures and application performances have not been reviewed comprehensively yet. This review emphasizes the recent advances in versatile synthesis strategies and broad applications of MOF coatings. A comprehensive discussion of the fundamental chemistry, classifications and functions of MOF coatings is provided first. Next, by modulating the different states (e.g. solid, liquid, and gas) of metal ion sources and organic ligands, the synthesis methods for MOF coatings on functional materials are systematically summarized. Then, many potential applications of MOF coatings are highlighted and their structure-property correlations are discussed. Finally, the opportunities and challenges for the future research of MOF coatings are proposed. This review on the deep understanding of MOF coatings will bring better directions into the rational design of high-performance MOF-based materials and open up new opportunities for MOF applications.
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Affiliation(s)
- Jiashen Meng
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China.
| | - Xiong Liu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China.
| | - Chaojiang Niu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China.
| | - Quan Pang
- Department of Energy and Resources Engineering, and Beijing Innovation Center for Engineering Science and Advanced Technology, Peking University, Beijing 100871, China
| | - Jiantao Li
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China.
| | - Fang Liu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China.
| | - Ziang Liu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China.
| | - Liqiang Mai
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China.
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Lee H, Choi U, Kim H, Lee JS. Binding Energy‐dependent Growth Behaviors and Surface Characteristics of Sequentially Polymerized Zincone Films. B KOREAN CHEM SOC 2019. [DOI: 10.1002/bkcs.11917] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hyemi Lee
- Department of Chemistry, The Research Institute of Natural SciencesSookmyung Women's University Seoul 140‐742 Republic of Korea
| | - Ui‐Jin Choi
- Department of Chemistry, The Research Institute of Natural SciencesSookmyung Women's University Seoul 140‐742 Republic of Korea
| | - Heewon Kim
- Department of Chemistry, The Research Institute of Natural SciencesSookmyung Women's University Seoul 140‐742 Republic of Korea
| | - Jin Seok Lee
- Department of Chemistry, The Research Institute of Natural SciencesSookmyung Women's University Seoul 140‐742 Republic of Korea
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9
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Kim HJ, Choi UJ, Kim H, Lee K, Park KB, Kim HM, Kwak DK, Chi SW, Lee JS, Kim KB. Translocation of DNA and protein through a sequentially polymerized polyurea nanopore. NANOSCALE 2019; 11:444-453. [PMID: 30398270 DOI: 10.1039/c8nr06229c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Here, we investigated the translocation of biomolecules, such as DNA and protein, through a sequentially polymerized polyurea nanopore, with a thin (<10 nm) polymer membrane of uniform thickness. The polyurea membrane was synthesized by molecular layer deposition using p-phenylenediisocyanate (PDI) and p-phenylenediamine (PDA) as sequential precursors. The membrane exhibited a hydrophobic surface with a highly negative surface charge density (-51 mC m-2 at pH 8). It was particularly noted that the high surface charge density of the membrane resulted in a highly developed electro-osmotic flow which, in turn, strongly influenced the capture probability of biomolecules, depending on the balance between the electro-osmotic and electrophoretic forces. For instance, the capture frequency of negatively charged DNA was demonstrated to be quite low, since these two forces more or less cancelled each other, whereas that of positively charged MDM2 was much higher, since these two forces were additive. We also identified that the mean translocation time of MDM2 through the polyurea nanopore was 26.1 ± 3.7 μs while that of the SiN nanopore was 14.2 ± 2.0 μs, hence suggesting that the enhanced electrostatic interaction between positively charged MDM2 and the negatively charged pore surface affects the translocation speed.
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Affiliation(s)
- Hyung-Jun Kim
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Korea.
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10
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Van de Kerckhove K, Barr MKS, Santinacci L, Vereecken PM, Dendooven J, Detavernier C. The transformation behaviour of "alucones", deposited by molecular layer deposition, in nanoporous Al 2O 3 layers. Dalton Trans 2018; 47:5860-5870. [PMID: 29649344 DOI: 10.1039/c8dt00723c] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Nanoporous alumina films can be synthesized from hybrid organic-inorganic "alucone" films deposited by molecular layer deposition (MLD) by wet etching in deionized water or calcination in air at 500 °C. This transformation process was systematically investigated for two alucone chemistries based on ethylene glycol (EG) and glycerol (GL). Ellipsometric porosimetry (EP) was used for the characterization of the porous alumina structures that are formed as a result of the treatments. Etching in deionized water transforms both EG- and GL-alucones into porous alumina with a porosity of about 40%, albeit with a different pore structure: cylindrical pores for EG-alucones and ink-bottle structures for GL-alucones. Calcination in air up to 500 °C only successfully transformed EG-alucones into porous alumina if the chosen heating and cooling rate was lower than 200 °C h-1. Below this ramp rate, a relationship between the resulting porosity and the ramp rate was found. At the lowest investigated ramp rate of 20 °C h-1, the highest porosity of 36% was achieved. For this treatment type, the pore shape was of the ink-bottle type for all investigated ramp rates with narrow 1 nm-sized pores. Infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy revealed that the final chemistry of the porous structures was slightly different for both treatments due to trace amounts of carbon left behind by water etching. This suggests that the internal surface of the porous structure has a different termination depending on the chosen treatment. The precise thickness control and conformal nature inherent to MLD combined with the wet and heat treatments enables the coating of complex 3D structures with a porous alumina film with a well-defined thickness and pore structure.
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Affiliation(s)
- Kevin Van de Kerckhove
- Department of Solid State Sciences, Ghent University, Krijgslaan 281 S1, 9000 Ghent, Belgium.
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11
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Choi UJ, Kim H, Park YS, Lee H, Lee JS. Molecular interaction-dependent surface potentials of sequentially polymerized alucone films. Chem Commun (Camb) 2018. [PMID: 29536994 DOI: 10.1039/c7cc09458b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Here, we investigated the relationship between the surface potentials and molecular interactions in the alucone films grown by molecular layer deposition. Varying the C-C bond order of the organic precursors induced variations in inter-molecular interactions, resulting in variation in the surface potential, associated with the work function of the films.
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Affiliation(s)
- Ui-Jin Choi
- Department of Chemistry, The Research Institute of National Sciences, Sookmyung Women's University, Seoul 140-742, Korea.
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12
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Perrotta A, Poodt P, van den Bruele FJ(F, Kessels WMM(E, Creatore M. Characterization of nano-porosity in molecular layer deposited films. Dalton Trans 2018; 47:7649-7655. [PMID: 29796504 DOI: 10.1039/c8dt01246f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A correlation was found between the MLD process conditions, the open-porosity relative content, and the degradation of metalcone layers.
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Affiliation(s)
- Alberto Perrotta
- Department of Applied Physics
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
| | - Paul Poodt
- Holst Centre/TNO
- Eindhoven
- The Netherlands
| | | | - W. M. M. (Erwin) Kessels
- Department of Applied Physics
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
- Solar Research SOLLIANCE
| | - Mariadriana Creatore
- Department of Applied Physics
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
- Solar Research SOLLIANCE
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13
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Choi UJ, Kim H, Park YS, Lee JS. Uniform Surface Characteristics in Sequentially Polymerized Polyurea Films. B KOREAN CHEM SOC 2017. [DOI: 10.1002/bkcs.11344] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Ui-Jin Choi
- Department of Chemistry; Sookmyung Women’s University; Seoul 140-742 Korea
| | - Hyein Kim
- Department of Chemistry; Sookmyung Women’s University; Seoul 140-742 Korea
| | - Yi-Seul Park
- Department of Chemistry; Sookmyung Women’s University; Seoul 140-742 Korea
| | - Jin Seok Lee
- Department of Chemistry; Sookmyung Women’s University; Seoul 140-742 Korea
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14
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Van de Kerckhove K, Mattelaer F, Dendooven J, Detavernier C. Molecular layer deposition of “vanadicone”, a vanadium-based hybrid material, as an electrode for lithium-ion batteries. Dalton Trans 2017; 46:4542-4553. [DOI: 10.1039/c7dt00374a] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Post-deposition heat treatments activate MLD vanadicone as a lithium-ion battery electrode.
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Affiliation(s)
| | - Felix Mattelaer
- Department of Solid State Sciences
- Ghent University
- 9000 Ghent
- Belgium
| | - Jolien Dendooven
- Department of Solid State Sciences
- Ghent University
- 9000 Ghent
- Belgium
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