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Pula P, Leniart AA, Krol J, Gorzkowski MT, Suster MC, Wrobel P, Lewera A, Majewski PW. Block Copolymer-Templated, Single-Step Synthesis of Transition Metal Oxide Nanostructures for Sensing Applications. ACS APPLIED MATERIALS & INTERFACES 2023; 15:57970-57980. [PMID: 37644616 PMCID: PMC10739603 DOI: 10.1021/acsami.3c10439] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 08/18/2023] [Indexed: 08/31/2023]
Abstract
The synthesis of transition metal oxide nanostructures, thanks to their high surface-to-volume ratio and the resulting large fraction of surface atoms with high catalytic activity, is of prime importance for the development of new sensors and catalytic materials. Here, we report an economical, time-efficient, and easily scalable method of fabricating nanowires composed of vanadium, chromium, manganese, iron, and cobalt oxides by employing simultaneous block copolymer (BCP) self-assembly and selective sequestration of metal-organic acetylacetonate complexes within one of the BCP blocks. We discuss the mechanism and the primary factors that are responsible for the sequestration and conformal replication of the BCP template by the inorganic material that is obtained after the polymer template is removed. X-ray photoelectron spectroscopy (XPS) and powder X-ray diffraction (PXRD) studies indicate that the metal oxidation state in the nanowires produced by plasma ashing the BCP template closely matches that of the precursor complex and that their structure is amorphous, thus requiring high-temperature annealing in order to sinter them into a crystalline form. Finally, we demonstrate how the developed nanowire array fabrication scheme can be used to rapidly pattern a multilayered iron oxide nanomesh, which we then used to construct a prototype volatile organic compound sensor.
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Affiliation(s)
- Przemyslaw Pula
- Department
of Chemistry, University of Warsaw, Warsaw 02093, Poland
- Biological
and Chemical Research Centre, University
of Warsaw, Warsaw 02089, Poland
| | | | - Julia Krol
- Department
of Chemistry, University of Warsaw, Warsaw 02093, Poland
| | - Maciej T. Gorzkowski
- Biological
and Chemical Research Centre, University
of Warsaw, Warsaw 02089, Poland
| | - Mihai C. Suster
- Department
of Physics, University of Warsaw, Warsaw 02093, Poland
| | - Piotr Wrobel
- Department
of Physics, University of Warsaw, Warsaw 02093, Poland
| | - Adam Lewera
- Department
of Chemistry, University of Warsaw, Warsaw 02093, Poland
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2
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Merekalov AS, Derikov YI, Ezhov AA, Kriksin YA, Erukhimovich IY, Kudryavtsev YV. Orientation control of the hexagonal and lamellar phases in thin block copolymers films using in-plane AC electric field. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Merekalov AS, Derikov YI, Artemov VV, Ezhov AA, Kudryavtsev YV. Vertical Cylinder-to-Lamella Transition in Thin Block Copolymer Films Induced by In-Plane Electric Field. Polymers (Basel) 2021; 13:3959. [PMID: 34833258 PMCID: PMC8622010 DOI: 10.3390/polym13223959] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/10/2021] [Accepted: 11/11/2021] [Indexed: 11/16/2022] Open
Abstract
Morphological transition between hexagonal and lamellar patterns in thin polystyrene-block-poly(4-vinyl pyridine) films simultaneously exposed to a strong in-plane electric field and saturated solvent vapor is studied with atomic force and scanning electron microscopy. In these conditions, standing cylinders made of 4-vinyl pyridine blocks arrange into threads up to tens of microns long along the field direction and then partially merge into standing lamellas. In the course of rearrangement, the copolymer remains strongly segregated, with the minor component domains keeping connectivity between the film surfaces. The ordering tendency becomes more pronounced if the cylinders are doped with Au nanorods, which can increase their dielectric permittivity. Non-selective chloroform vapor works particularly well, though it causes partial etching of the indium tin oxide cathode. On the contrary, 1,4-dioxane vapor selective to polystyrene matrix does not allow for any morphological changes.
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Affiliation(s)
- Alexey S. Merekalov
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 119991 Moscow, Russia; (A.S.M.); (Y.I.D.); (A.A.E.)
| | - Yaroslav I. Derikov
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 119991 Moscow, Russia; (A.S.M.); (Y.I.D.); (A.A.E.)
| | - Vladimir V. Artemov
- Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics”, Russian Academy of Sciences, 119333 Moscow, Russia;
| | - Alexander A. Ezhov
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 119991 Moscow, Russia; (A.S.M.); (Y.I.D.); (A.A.E.)
- Faculty of Physics, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Yaroslav V. Kudryavtsev
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 119991 Moscow, Russia; (A.S.M.); (Y.I.D.); (A.A.E.)
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 119071 Moscow, Russia
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Tan Z, Hou Z, Wang K, Li Y, Zhang L, Zhu J, Xu J. Kinetic Control of Length and Morphology of Segmented Polymeric Nanofibers in Microfluidic Chips. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:13364-13370. [PMID: 33119985 DOI: 10.1021/acs.langmuir.0c02904] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this work, we report an approach to prepare segmented polymer nanofibers (SPNFs) composed of rodlike subunits by kinetically controlled self-assembly of polystyrene-b-poly(4-vinylpyridine)-based supramolecules in microfluidic chips. The length and morphology of the SPNFs could be effectively adjusted by changing the total flow rate (Vtotal) and the molar ratio (x) of 4-vinylpyridine (4VP) unit to a hydrogen-bonding molecule, 3-n-pentadecyphenol. Moreover, the subunits of SPNFs could transform from short rods to spheres when the interfacial tension between PS core and solvent increased. On the contrary, the SPNFs elongated along the major axis when the interfacial tension decreased. This work not only offers mechanism insights into the hierarchical self-assembly of block copolymer-based supramolecules but also provides a versatile and effective method for kinetically controlling the hierarchical structures of assemblies.
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Affiliation(s)
- Zhengping Tan
- Key Laboratory of Material Chemistry for Energy Conversion and Storage of Ministry of Education (HUST), and State Key Laboratory of Materials Processing and Die & Mold Technology, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China
| | - Zaiyan Hou
- Key Laboratory of Material Chemistry for Energy Conversion and Storage of Ministry of Education (HUST), and State Key Laboratory of Materials Processing and Die & Mold Technology, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China
| | - Ke Wang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage of Ministry of Education (HUST), and State Key Laboratory of Materials Processing and Die & Mold Technology, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China
| | - Yuce Li
- Key Laboratory of Material Chemistry for Energy Conversion and Storage of Ministry of Education (HUST), and State Key Laboratory of Materials Processing and Die & Mold Technology, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China
| | - Lianbin Zhang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage of Ministry of Education (HUST), and State Key Laboratory of Materials Processing and Die & Mold Technology, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China
| | - Jintao Zhu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage of Ministry of Education (HUST), and State Key Laboratory of Materials Processing and Die & Mold Technology, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China
| | - Jiangping Xu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage of Ministry of Education (HUST), and State Key Laboratory of Materials Processing and Die & Mold Technology, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China
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Hao J, Wang Z, Wang Z, Yin Y, Jiang R, Li B, Wang Q. Self-Assembly in Block Copolymer Thin Films upon Solvent Evaporation: A Simulation Study. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00200] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Jinlong Hao
- School
of Physics, Key Laboratory of Functional Polymer
Materials of Ministry of Education, Nankai University, Tianjin, 300071, China
| | - Zhan Wang
- School
of Physics, Key Laboratory of Functional Polymer
Materials of Ministry of Education, Nankai University, Tianjin, 300071, China
| | - Zheng Wang
- School
of Physics, Key Laboratory of Functional Polymer
Materials of Ministry of Education, Nankai University, Tianjin, 300071, China
| | - Yuhua Yin
- School
of Physics, Key Laboratory of Functional Polymer
Materials of Ministry of Education, Nankai University, Tianjin, 300071, China
| | - Run Jiang
- School
of Physics, Key Laboratory of Functional Polymer
Materials of Ministry of Education, Nankai University, Tianjin, 300071, China
| | - Baohui Li
- School
of Physics, Key Laboratory of Functional Polymer
Materials of Ministry of Education, Nankai University, Tianjin, 300071, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300071, China
| | - Qiang Wang
- Department
of Chemical and Biological Engineering, Colorado State University, Fort
Collins, Colorado 80523-1370, United States
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Park S, Cheng X, Böker A, Tsarkova L. Hierarchical Manipulation of Block Copolymer Patterns on 3D Topographic Substrates: Beyond Graphoepitaxy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:6900-5. [PMID: 27270877 DOI: 10.1002/adma.201601098] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Revised: 04/25/2016] [Indexed: 05/25/2023]
Abstract
Templates of complex nanopatterns in a form of hierarchically sequenced dots and stripes can be generated in block copolymer films on lithography-free 3D topographic substrates. The approach exploits thickness- and swelling-responsive morphological behavior of block copolymers, and demonstrates novel possibilities of topography-guided registration of nanopatterns due to periodic confinement and spontaneous orthogonal flow-fields.
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Affiliation(s)
- Sungjune Park
- DWI-Leibniz-Institute für Interaktiven Materialien and Institut für Physikalische Chemie, RWTH Aachen University, Forckenbeckstraße 50, 52056, Aachen, Germany
| | - Xiao Cheng
- DWI-Leibniz-Institute für Interaktiven Materialien and Institut für Physikalische Chemie, RWTH Aachen University, Forckenbeckstraße 50, 52056, Aachen, Germany
| | - Alexander Böker
- Fraunhofer-Institut für Angewandte Polymerforschung, Lehrstuhl für Polymermaterialien und Polymertechnologie, Universität Potsdam, Geiselbergstraße 69, 14476, Potsdam-Golm, Germany
| | - Larisa Tsarkova
- DWI-Leibniz-Institute für Interaktiven Materialien and Institut für Physikalische Chemie, RWTH Aachen University, Forckenbeckstraße 50, 52056, Aachen, Germany
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