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Poolakkandy RR, Menamparambath MM. Soft-template-assisted synthesis: a promising approach for the fabrication of transition metal oxides. NANOSCALE ADVANCES 2020; 2:5015-5045. [PMID: 36132034 PMCID: PMC9417152 DOI: 10.1039/d0na00599a] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 09/18/2020] [Indexed: 05/27/2023]
Abstract
The past few decades have witnessed transition metal oxides (TMOs) as promising candidates for a plethora of applications in numerous fields. The exceptional properties retained by these materials have rendered them of paramount emphasis as functional materials. Thus, the controlled and scalable synthesis of transition metal oxides with desired properties has received enormous attention. Out of different top-down and bottom-up approaches, template-assisted synthesis predominates as an adept approach for the facile synthesis of transition metal oxides, owing to its phenomenal ability for morphological and physicochemical tuning. This review presents a comprehensive examination of the recent advances in the soft-template-assisted synthesis of TMOs, focusing on the morphological and physicochemical tuning aided by different soft-templates. The promising applications of TMOs are explained in detail, emphasizing those with excellent performances.
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Affiliation(s)
| | - Mini Mol Menamparambath
- Department of Chemistry, National Institute of Technology Calicut Calicut-673601 Kerala India
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Hsieh YT, Liu YR. Micelle Structure in a Deep Eutectic Solvent for the Electrochemical Preparation of Nanomaterials. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:10270-10275. [PMID: 30085677 DOI: 10.1021/acs.langmuir.8b01896] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The self-aggregation of a surfactant in a deep eutectic solvent (DES) for electrodeposition is reported. The physical properties and electrochemical behavior of an anionic surfactant, sodium dodecyl sulfate (SDS), in a widely used DES, a choline chloride-urea mixture (ChCl-urea), were investigated. On the basis of surface tension and the conductivity measurements, the SDS micelles that were formed in the ChCl-urea system remained stable at higher temperatures, that is, 90 °C. Cyclic voltammetric and chronoamperometric data indicate that the addition of SDS to the DES may alter the nucleation and the growth processes that occur in the electrodeposition process. Scanning electron microscopy images show that the SDS adsorption prevents dendrite formation during the electrodeposition process. A simple mechanism for the formation of the SDS micelles in the DES system for electrodeposition is proposed.
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Affiliation(s)
- Yi-Ting Hsieh
- Department of Chemistry , Soochow University , Taipei City 11102 , Taiwan
| | - Yan-Ru Liu
- Department of Chemistry , Soochow University , Taipei City 11102 , Taiwan
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Miyagawa M, Usui M, Imura Y, Kuwahara S, Sugai T, Tanaka H. Aqueous synthesis of protectant-free copper nanocubes by a disproportionation reaction of Cu 2O on synthetic saponite. Chem Commun (Camb) 2018; 54:8454-8457. [PMID: 29808193 DOI: 10.1039/c8cc03182g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Here, we report a synthesis of Cu nanocubes by photoreduction of CuSO4. Because synthetic saponite (one of the layered clay minerals) was used as the adsorbent, the nanocubes contained no capping agents or protectants, and the disproportionation reaction of Cu2O with H2SO4 was found to be the key for morphological control.
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Affiliation(s)
- Masaya Miyagawa
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27, Kasuga, Bunkyo-ku, Tokyo, Japan.
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Mezine Z, Kadri A, Hamadou L, Benbrahim N, Chaouchi A. Electrodeposition of copper oxides (CuxOy) from acetate bath. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.03.055] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Wei C, Liu Q. Shape-, size-, and density-tunable synthesis and optical properties of copper nanoparticles. CrystEngComm 2017. [DOI: 10.1039/c7ce00750g] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Han UB, Lee JS. Bottom-up synthesis of ordered metal/oxide/metal nanodots on substrates for nanoscale resistive switching memory. Sci Rep 2016; 6:25537. [PMID: 27157385 PMCID: PMC4860564 DOI: 10.1038/srep25537] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Accepted: 04/19/2016] [Indexed: 12/13/2022] Open
Abstract
The bottom-up approach using self-assembled materials/processes is thought to be a promising solution for next-generation device fabrication, but it is often found to be not feasible for use in real device fabrication. Here, we report a feasible and versatile way to fabricate high-density, nanoscale memory devices by direct bottom-up filling of memory elements. An ordered array of metal/oxide/metal (copper/copper oxide/copper) nanodots was synthesized with a uniform size and thickness defined by self-organized nanotemplate mask by sequential electrochemical deposition (ECD) of each layer. The fabricated memory devices showed bipolar resistive switching behaviors confirmed by conductive atomic force microscopy. This study demonstrates that ECD with bottom-up growth has great potential to fabricate high-density nanoelectronic devices beyond the scaling limit of top-down device fabrication processes.
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Affiliation(s)
- Un-Bin Han
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang 790-784, Korea
| | - Jang-Sik Lee
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang 790-784, Korea
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Yan K, Yao W, Yang L, Cao J, Zhao Y, Zhao L, Zhu Y. The formation of heterointerface defects in Au/Cu films on Si substrates under direct current in a vacuum ultraviolet environment. Phys Chem Chem Phys 2016; 18:4019-25. [PMID: 26778294 DOI: 10.1039/c5cp06499f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Au/Cu metallic films were deposited on p-Si(100) substrates with and without an Au upper layer by magnetron sputtering. The defect formation and nanoscale interfacial evolution at the Au/Cu and Cu/Si interfaces were studied by using Auger electron spectroscopy (AES) and high resolution transmission electron microscopy (HRTEM). The results showed that an increase in defects at the heterointerfaces and in the surface layer was induced by the effect of a direct current (DC) in a vacuum ultraviolet (UV) environment, which could provide more channels for the removal of atoms. The directed migration of atomic clusters in the films was caused by the effect of the DC, which also aggravated the defects' expansion and led to the formation of Au-Cu intermetallic compounds (IMCs). In addition, the voids formed at the interface between the Au/Cu films and the Si substrates were found to be mainly related to the generation of the material Au2Cu3.
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Affiliation(s)
- Kai Yan
- Institute of Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China. and Department of Chemistry, Tsinghua University, Beijing 100084, China.
| | - Wenqing Yao
- Department of Chemistry, Tsinghua University, Beijing 100084, China.
| | - Liping Yang
- Department of Chemistry, Tsinghua University, Beijing 100084, China.
| | - Jiangli Cao
- Institute of Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China.
| | - Yuanyuan Zhao
- Institute of Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China.
| | - Lixia Zhao
- Institute of Semiconductors, Chinese Academy of Science, Beijing 100083, China
| | - Yongfa Zhu
- Department of Chemistry, Tsinghua University, Beijing 100084, China.
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Non-enzymatic amperometric detection of hydrogen peroxide using grass-like copper oxide nanostructures calcined in nitrogen atmosphere. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.05.037] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Lu Y, Ren Z, Yuan H, Wang Z, Yu B, Chen J. Atmospheric-pressure microplasma as anode for rapid and simple electrochemical deposition of copper and cuprous oxide nanostructures. RSC Adv 2015. [DOI: 10.1039/c5ra10145j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Atmospheric-pressure microplasma could be applied as gaseous anode for transferring positive charges and controllably electrodepositing Cu and Cu2O nanocrystals.
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Affiliation(s)
- Yuexiang Lu
- Institute of Nuclear and New Energy Technology
- Tsinghua University
- Beijing 100084
- China
- Beijing Key Lab of Radioactive Waste Treatment
| | - Zhonghua Ren
- Institute of Nuclear and New Energy Technology
- Tsinghua University
- Beijing 100084
- China
- Beijing Key Lab of Radioactive Waste Treatment
| | - Hang Yuan
- Institute of Nuclear and New Energy Technology
- Tsinghua University
- Beijing 100084
- China
- Beijing Key Lab of Radioactive Waste Treatment
| | - Zhe Wang
- Institute of Nuclear and New Energy Technology
- Tsinghua University
- Beijing 100084
- China
- Beijing Key Lab of Radioactive Waste Treatment
| | - Bo Yu
- Institute of Nuclear and New Energy Technology
- Tsinghua University
- Beijing 100084
- China
- Beijing Key Lab of Radioactive Waste Treatment
| | - Jing Chen
- Institute of Nuclear and New Energy Technology
- Tsinghua University
- Beijing 100084
- China
- Beijing Key Lab of Radioactive Waste Treatment
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Serrà A, Gómez E, López-Barbera JF, Nogués J, Vallés E. Green electrochemical template synthesis of CoPt nanoparticles with tunable size, composition, and magnetism from microemulsions using an ionic liquid (bmimPF6). ACS NANO 2014; 8:4630-4639. [PMID: 24786899 DOI: 10.1021/nn500367q] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Electrodeposition from microemulsions using ionic liquids is revealed as a green method for synthesizing magnetic alloyed nanoparticles, avoiding the use of aggressive reducing agents. Microemulsions containing droplets of aqueous solution (electrolytic solution containing Pt(IV) and Co(II) ions) in an ionic liquid (bmimPF6) define nanoreactors in which the electrochemical reduction takes place. Highly crystalline hcp alloyed CoPt nanoparticles, in the 10-120 nm range with a rather narrow size distribution, have been deposited on a conductive substrate. The relative amount of aqueous solution to ionic liquid determines the size of the nanoreactors, which serve as nanotemplates for the growth of the nanoparticles and hence determine their size and distribution. Further, the stoichiometry (Pt(x)Co(1-x)) of the particles can be tuned by the composition of the electrolytic solution inside the droplets. The control of the size and composition of the particles allows tailoring the room-temperature magnetic behavior of the nanoparticles from superparaparamagnetic to hard magnetic (with a coercivity of HC = 4100 Oe) in the as-obtained state.
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Affiliation(s)
- Albert Serrà
- Departament de Química Física and Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona , Martí i Franquès 1, 08028, Barcelona, Spain
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Na Y, Lee SW, Roy N, Pradhan D, Sohn Y. Room temperature light-induced recrystallization of Cu2O cubes to CuO nanostructures in water. CrystEngComm 2014. [DOI: 10.1039/c4ce01174k] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Visible light irradiation induces recrystallization of Cu2O cubes to [010] growth-directed CuO nanoribbons in water due to the creation of active ˙OH and ˙O2− species and outward Cu diffusion along unstable {010} facets.
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Affiliation(s)
- Yulyi Na
- Department of Chemistry
- Yeungnam University
- Gyeongsan 712-749, Republic of Korea
| | - Sung Woo Lee
- Center for Research Facilities
- Chungnam National University
- Daejeon 305-764, Republic of Korea
| | - Nitish Roy
- Materials Science Centre
- Indian Institute of Technology
- , India
| | | | - Youngku Sohn
- Department of Chemistry
- Yeungnam University
- Gyeongsan 712-749, Republic of Korea
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