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Randhawa A, Dutta SD, Ganguly K, Patil TV, Lim KT. Manufacturing 3D Biomimetic Tissue: A Strategy Involving the Integration of Electrospun Nanofibers with a 3D-Printed Framework for Enhanced Tissue Regeneration. Small 2024:e2309269. [PMID: 38308170 DOI: 10.1002/smll.202309269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 01/11/2024] [Indexed: 02/04/2024]
Abstract
3D printing and electrospinning are versatile techniques employed to produce 3D structures, such as scaffolds and ultrathin fibers, facilitating the creation of a cellular microenvironment in vitro. These two approaches operate on distinct working principles and utilize different polymeric materials to generate the desired structure. This review provides an extensive overview of these techniques and their potential roles in biomedical applications. Despite their potential role in fabricating complex structures, each technique has its own limitations. Electrospun fibers may have ambiguous geometry, while 3D-printed constructs may exhibit poor resolution with limited mechanical complexity. Consequently, the integration of electrospinning and 3D-printing methods may be explored to maximize the benefits and overcome the individual limitations of these techniques. This review highlights recent advancements in combined techniques for generating structures with controlled porosities on the micro-nano scale, leading to improved mechanical structural integrity. Collectively, these techniques also allow the fabrication of nature-inspired structures, contributing to a paradigm shift in research and technology. Finally, the review concludes by examining the advantages, disadvantages, and future outlooks of existing technologies in addressing challenges and exploring potential opportunities.
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Affiliation(s)
- Aayushi Randhawa
- Department of Biosystems Engineering, Kangwon National University, Chuncheon, 24341, Republic of Korea
- Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Sayan Deb Dutta
- Department of Biosystems Engineering, Kangwon National University, Chuncheon, 24341, Republic of Korea
- Institute of Forest Science, Kangwon National University, Chuncheon, Gangwon-do, 24341, Republic of Korea
| | - Keya Ganguly
- Department of Biosystems Engineering, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Tejal V Patil
- Department of Biosystems Engineering, Kangwon National University, Chuncheon, 24341, Republic of Korea
- Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Ki-Taek Lim
- Department of Biosystems Engineering, Kangwon National University, Chuncheon, 24341, Republic of Korea
- Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon, 24341, Republic of Korea
- Institute of Forest Science, Kangwon National University, Chuncheon, Gangwon-do, 24341, Republic of Korea
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Zhao LJ, Xu HG, Xu XL, Zheng WJ. Structures and Properties of Planar Ge 3O 3 Cluster and Its Buckled Honeycomb Two-Dimensional Nanostructure. Nano Lett 2023; 23:8378-8384. [PMID: 37651712 DOI: 10.1021/acs.nanolett.3c02778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
The discovery of graphene and its excellent properties inspired the search for more two-dimensional (2D) materials. Understanding the structures and properties of the smallest repeating units as well as crystal 2D materials is helpful for designing 2D materials. As germanium tends to form three-dimensional structures, the preparation of germanium-based 2D nanomaterials is still a challenge. Herein, we report a Ge3O3 cluster with the potential to construct a germanium oxide 2D nanostructure. We conduct a combined anion photoelectron spectroscopy and theoretical study on Ge3O3-/0. The structure of Ge3O3- is a Cs symmetric nonplanar six-membered ring, while that of Ge3O3 is a D3h symmetric planar six-membered ring. Chemical bonding analyses reveal that Ge3O3 exhibits π aromaticity. First-principle results suggest that a buckled honeycomb 2D nanostructure with a wide band gap of 3.14 eV may be produced based on Ge3O3, which is promising in optoelectronic applications especially in blue, violet, and ultraviolet regions.
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Affiliation(s)
- Li-Juan Zhao
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hong-Guang Xu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xi-Ling Xu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wei-Jun Zheng
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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Matei E, Covaliu-Mierla CI, Ţurcanu AA, Râpă M, Predescu AM, Predescu C. Multifunctional Membranes-A Versatile Approach for Emerging Pollutants Removal. Membranes (Basel) 2022; 12:67. [PMID: 35054593 DOI: 10.3390/membranes12010067] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 12/29/2021] [Accepted: 12/31/2021] [Indexed: 02/06/2023]
Abstract
This paper presents a comprehensive literature review surveying the most important polymer materials used for electrospinning processes and applied as membranes for the removal of emerging pollutants. Two types of processes integrate these membrane types: separation processes, where electrospun polymers act as a support for thin film composites (TFC), and adsorption as single or coupled processes (photo-catalysis, advanced oxidation, electrochemical), where a functionalization step is essential for the electrospun polymer to improve its properties. Emerging pollutants (EPs) released in the environment can be efficiently removed from water systems using electrospun membranes. The relevant results regarding removal efficiency, adsorption capacity, and the size and porosity of the membranes and fibers used for different EPs are described in detail.
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Jia C, Xu Z, Luo D, Xiang H, Zhu M. Flexible Ceramic Fibers: Recent Development in Preparation and Application. Adv Fiber Mater 2022; 4:573-603. [PMID: 35359823 PMCID: PMC8831880 DOI: 10.1007/s42765-022-00133-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 01/03/2022] [Indexed: 05/14/2023]
Abstract
Flexible ceramic fibers (FCFs) have been developed for various advanced applications due to their superior mechanical flexibility, high temperature resistance, and excellent chemical stability. In this article, we present an overview on the recent progress of FCFs in terms of materials, fabrication methods, and applications. We begin with a brief introduction to FCFs and the materials for preparation of FCFs. After that, various methods for preparation of FCFs are discussed, including centrifugal spinning, electrospinning, solution blow spinning, self-assembly, chemical vapor deposition, atomic layer deposition, and polymer conversion. Recent applications of FCFs in various fields are further illustrated in detail, including thermal insulation, air filtration, water treatment, sound absorption, electromagnetic wave absorption, battery separator, catalytic application, among others. Finally, some perspectives on the future directions and opportunities for the preparation and application of FCFs are highlighted. We envision that this review will provide readers with some meaningful guidance on the preparation of FCFs and inspire them to explore more potential applications.
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Affiliation(s)
- Chao Jia
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620 China
| | - Zhe Xu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620 China
| | - Dianfeng Luo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620 China
| | - Hengxue Xiang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620 China
| | - Meifang Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620 China
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Sozen Y, Yagmurcukardes M, Sahin H. Vibrational and optical identification of GeO 2 and GeO single layers: a first-principles study. Phys Chem Chem Phys 2021; 23:21307-21315. [PMID: 34545385 DOI: 10.1039/d1cp02299g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
In the present work, the identification of two hexagonal phases of germanium oxides (namely GeO2 and GeO) through the vibrational and optical properties is reported using density functional theory calculations. While structural optimizations show that single-layer GeO2 and GeO crystallize in 1T and buckled phases, phonon band dispersions reveal the dynamical stability of each structure. First-order off-resonant Raman spectral predictions demonstrate that each free-standing single-layer possesses characteristic peaks that are representative for the identification of the germanium oxide phase. On the other hand, electronic band dispersion analysis shows the insulating and large-gap semiconducting nature of single-layer GeO2 and GeO, respectively. Moreover, optical absorption, reflectance, and transmittance spectra obtained by means of G0W0-BSE calculations reveal the existence of tightly bound excitons in each phase, displaying strong optical absorption. Furthermore, the excitonic gaps are found to be at deep UV and visible portions of the spectrum, for GeO2 and GeO crystals, with energies of 6.24 and 3.10 eV, respectively. In addition, at the prominent excitonic resonances, single-layers display high reflectivity with a zero transmittance, which is another indication of the strong light-matter interaction inside the crystal medium.
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Affiliation(s)
- Y Sozen
- Department of Photonics, Izmir Institute of Technology, 35430, Izmir, Turkey
| | - M Yagmurcukardes
- Department of Photonics, Izmir Institute of Technology, 35430, Izmir, Turkey.,Department of Physics, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium.,NANOlab Center of Excellence, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
| | - H Sahin
- Department of Photonics, Izmir Institute of Technology, 35430, Izmir, Turkey
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Affiliation(s)
- Zhen Wang
- Shanghai Institute of Traumatology and Orthopaedics Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases Ruijin Hospital Shanghai Jiao Tong University School of Medicine 197 Ruijin 2nd Road Shanghai 200025 P. R. China
| | - Wenguo Cui
- Shanghai Institute of Traumatology and Orthopaedics Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases Ruijin Hospital Shanghai Jiao Tong University School of Medicine 197 Ruijin 2nd Road Shanghai 200025 P. R. China
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Verma S, Sinha-Ray S, Sinha-Ray S. Electrospun CNF Supported Ceramics as Electrochemical Catalysts for Water Splitting and Fuel Cell: A Review. Polymers (Basel) 2020; 12:polym12010238. [PMID: 31963805 PMCID: PMC7023546 DOI: 10.3390/polym12010238] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 01/13/2020] [Accepted: 01/15/2020] [Indexed: 01/19/2023] Open
Abstract
With the per capita growth of energy demand, there is a significant need for alternative and sustainable energy resources. Efficient electrochemical catalysis will play an important role in sustaining that need, and nanomaterials will play a crucial role, owing to their high surface area to volume ratio. Electrospun nanofiber is one of the most promising alternatives for producing such nanostructures. A section of key nano-electrocatalysts comprise of transition metals (TMs) and their derivatives, like oxides, sulfides, phosphides and carbides, etc., as well as their 1D composites with carbonaceous elements, like carbon nanotubes (CNTs) and carbon nanofiber (CNF), to utilize the fruits of TMs’ electronic structure, their inherent catalytic capability and the carbon counterparts’ stability, and electrical conductivity. In this work, we will discuss about such TM derivatives, mostly TM-based ceramics, grown on the CNF substrates via electrospinning. We will discuss about manufacturing methods, and their electrochemical catalysis performances in regards to energy conversion processes, dealing mostly with water splitting, the metal–air battery fuel cell, etc. This review will help to understand the recent evolution, challenges and future scopes related to electrospun transition metal derivative-based CNFs as electrocatalysts.
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Affiliation(s)
- Sahil Verma
- School of Engineering, Indian Institute of Technology Mandi, Mandi HP 175075, India;
| | - Sumit Sinha-Ray
- School of Engineering, Indian Institute of Technology Mandi, Mandi HP 175075, India;
- Department of Mechanical and Industrial Engineering, University of Illinois at Chicago, Chicago, IL 60607, USA
- Correspondence: (S.S.-R.); (S.S.-R.)
| | - Suman Sinha-Ray
- Department of Mechanical and Industrial Engineering, University of Illinois at Chicago, Chicago, IL 60607, USA
- Corporate Innovation Center, United States Gypsum, Libertyville, IL 60048, USA
- Correspondence: (S.S.-R.); (S.S.-R.)
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8
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Azimi B, Milazzo M, Lazzeri A, Berrettini S, Uddin MJ, Qin Z, Buehler MJ, Danti S. Electrospinning Piezoelectric Fibers for Biocompatible Devices. Adv Healthc Mater 2020; 9:e1901287. [PMID: 31701671 PMCID: PMC6949425 DOI: 10.1002/adhm.201901287] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Indexed: 12/14/2022]
Abstract
The field of nanotechnology has been gaining great success due to its potential in developing new generations of nanoscale materials with unprecedented properties and enhanced biological responses. This is particularly exciting using nanofibers, as their mechanical and topographic characteristics can approach those found in naturally occurring biological materials. Electrospinning is a key technique to manufacture ultrafine fibers and fiber meshes with multifunctional features, such as piezoelectricity, to be available on a smaller length scale, thus comparable to subcellular scale, which makes their use increasingly appealing for biomedical applications. These include biocompatible fiber-based devices as smart scaffolds, biosensors, energy harvesters, and nanogenerators for the human body. This paper provides a comprehensive review of current studies focused on the fabrication of ultrafine polymeric and ceramic piezoelectric fibers specifically designed for, or with the potential to be translated toward, biomedical applications. It provides an applicative and technical overview of the biocompatible piezoelectric fibers, with actual and potential applications, an understanding of the electrospinning process, and the properties of nanostructured fibrous materials, including the available modeling approaches. Ultimately, this review aims at enabling a future vision on the impact of these nanomaterials as stimuli-responsive devices in the human body.
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Affiliation(s)
- Bahareh Azimi
- Laboratory for Atomistic and Molecular Mechanics (LAMM), Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Civil and Industrial Engineering, University of Pisa, Pisa, 56122, Italy
| | - Mario Milazzo
- Laboratory for Atomistic and Molecular Mechanics (LAMM), Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Andrea Lazzeri
- Department of Civil and Industrial Engineering, University of Pisa, Pisa, 56122, Italy
| | - Stefano Berrettini
- Department of Surgical, Medical Molecular Pathology and Emergency Care, University of Pisa, Pisa, 56124, Italy
| | - Mohammed Jasim Uddin
- Department of Chemistry, Photonics and Energy Research Laboratory, University of Texas Rio Grande Valley, Edinburg, TX, 78539, USA
| | - Zhao Qin
- Laboratory for Atomistic and Molecular Mechanics (LAMM), Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Markus J Buehler
- Laboratory for Atomistic and Molecular Mechanics (LAMM), Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Serena Danti
- Laboratory for Atomistic and Molecular Mechanics (LAMM), Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Civil and Industrial Engineering, University of Pisa, Pisa, 56122, Italy
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9
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Abstract
Electrospinning is a versatile and viable technique for generating ultrathin fibers. Remarkable progress has been made with regard to the development of electrospinning methods and engineering of electrospun nanofibers to suit or enable various applications. We aim to provide a comprehensive overview of electrospinning, including the principle, methods, materials, and applications. We begin with a brief introduction to the early history of electrospinning, followed by discussion of its principle and typical apparatus. We then discuss its renaissance over the past two decades as a powerful technology for the production of nanofibers with diversified compositions, structures, and properties. Afterward, we discuss the applications of electrospun nanofibers, including their use as "smart" mats, filtration membranes, catalytic supports, energy harvesting/conversion/storage components, and photonic and electronic devices, as well as biomedical scaffolds. We highlight the most relevant and recent advances related to the applications of electrospun nanofibers by focusing on the most representative examples. We also offer perspectives on the challenges, opportunities, and new directions for future development. At the end, we discuss approaches to the scale-up production of electrospun nanofibers and briefly discuss various types of commercial products based on electrospun nanofibers that have found widespread use in our everyday life.
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Affiliation(s)
- Jiajia Xue
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, United States
| | - Tong Wu
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, United States
| | - Yunqian Dai
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, Jiangsu 211189, People’s Republic of China
| | - Younan Xia
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, United States
- School of Chemistry and Biochemistry, School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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10
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Xiao Z, Sun X, Li X, Wang Y, Wang Z, Zhang B, Li XL, Shen Z, Kong LB, Huang Y. Phase Transformation of GeO 2 Glass to Nanocrystals under Ambient Conditions. Nano Lett 2018; 18:3290-3296. [PMID: 29667834 DOI: 10.1021/acs.nanolett.8b01142] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Theoretically, the accomplishment of phase transformation requires sufficient energy to overcome the barriers of structure rearrangements. The transition of an amorphous structure to a crystalline structure is implemented traditionally by heating at high temperatures. However, phase transformation under ambient condition without involving external energy has not been reported. Here, we demonstrate that the phase transformation of GeO2 glass to nanocrystals can be triggered at ambient conditions when subjected to aqueous environments. In this case, continuous chemical reactions between amorphous GeO2 and water are responsible for the amorphous-to-crystalline transition. The dynamic evolution process is monitored by using in situ liquid-cell transmission electron microscopy, clearly revealing this phase transformation. It is the hydrolysis of amorphous GeO2 that leads to the formation of clusters with a size of ∼0.4 nm, followed by the development of dense liquid clusters, which subsequently aggregate to facilitate the nucleation and growth of GeO2 nanocrystals. Our finding breaks the traditional understanding of phase transformation and will bring about a significant revolution and contribution to the classical glass-crystallization theories.
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Affiliation(s)
- Zhuohao Xiao
- School of Materials Science and Engineering , Jingdezhen Ceramic Institute , Jingdezhen 333001 , China
| | - Xinyuan Sun
- Department of Physics , Jinggangshan University , Ji'an 343009 , China
| | - Xiuying Li
- School of Materials Science and Engineering , Jingdezhen Ceramic Institute , Jingdezhen 333001 , China
| | - Yongqing Wang
- School of Materials Science and Engineering , Jingdezhen Ceramic Institute , Jingdezhen 333001 , China
| | - Zhiqiang Wang
- School of Materials Science and Engineering , Nanyang Technological University , Singapore 639798 , Singapore
| | - Bowei Zhang
- School of Materials Science and Engineering , Nanyang Technological University , Singapore 639798 , Singapore
| | - Xiang Lin Li
- School of Materials Science and Engineering , Nanyang Technological University , Singapore 639798 , Singapore
| | - Zexiang Shen
- School of Materials Science and Engineering , Nanyang Technological University , Singapore 639798 , Singapore
| | - Ling Bing Kong
- School of Materials Science and Engineering , Nanyang Technological University , Singapore 639798 , Singapore
| | - Yizhong Huang
- School of Materials Science and Engineering , Nanyang Technological University , Singapore 639798 , Singapore
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12
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Kanjwal MA, Leung WW, Chronakis IS. Composite nanofibers/water photosplitting and photocatalytic degradation of dairy effluent. Sep Purif Technol 2018; 192:160-5. [DOI: 10.1016/j.seppur.2017.10.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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13
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Wei W, Jia F, Qu P, Huang Z, Wang H, Guo L. Morphology memory but reconstructing crystal structure: porous hexagonal GeO 2 nanorods for rechargeable lithium-ion batteries. Nanoscale 2017; 9:3961-3968. [PMID: 28266676 DOI: 10.1039/c7nr00599g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Hexagonal GeO2, with high theoretical reversible capacity and low operating voltage, is regarded as a promising anode material for Li ion batteries. Being similar to other alloy type anode materials, the practical application of GeO2 is confronted with large volume change and fast capacity fading during lithiation/delithiation cycles. Constructing unique GeO2 nanostructures is proposed as an effective strategy to address this issue of fast capacity degradation. However, the controllable synthesis of GeO2 nanomaterials is challenged due to the fast hydrolysis of Ge precursors in aqueous solution. In this work, we report a simple strategy to synthesize GeO2 nanorods by using orthorhombic Ca2Ge7O16 nanorods as the sacrificial template with HNO3 as the etching agent. With the morphology memory of orthorhombic Ca2Ge7O16 nanorods, the as-prepared porous hexagonal GeO2 nanorods exhibit excellent electrochemical performance with a high capacity of 747 mA h g-1 after 50 cycles, which should be attributed to the porous and one dimensional nanostructure of GeO2 nanorods. This facile 'morphology memory but restructuring crystal structure' method could be extended to the controllable preparation of other GeO2 nanostructures, and achieve more efficient anode materials.
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Affiliation(s)
- Wei Wei
- Henan Key Laboratory of Biomolecular Recognition and Sensing, School of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, P.R. China. and School of Chemistry and Environment, Beihang University, Beijing 100191, P.R. China. and College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Fangfang Jia
- Henan Key Laboratory of Biomolecular Recognition and Sensing, School of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, P.R. China.
| | - Peng Qu
- Henan Key Laboratory of Biomolecular Recognition and Sensing, School of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, P.R. China.
| | - Zhongning Huang
- School of Chemistry and Environment, Beihang University, Beijing 100191, P.R. China.
| | - Hua Wang
- School of Chemistry and Environment, Beihang University, Beijing 100191, P.R. China.
| | - Lin Guo
- School of Chemistry and Environment, Beihang University, Beijing 100191, P.R. China.
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14
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Hayat K, Javid Iqbal M, Rasool K, Iqbal Y. Device fabrication and dc electrical transport properties of barium manganite nanofibers (BMO-NFs). Chem Phys Lett 2014. [DOI: 10.1016/j.cplett.2014.10.046] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Li X, Liang J, Hou Z, Zhu Y, Wang Y, Qian Y. Coordination complex pyrolyzation for the synthesis of nanostructured GeO2with high lithium storage properties. Chem Commun (Camb) 2014; 50:13956-9. [DOI: 10.1039/c4cc06658h] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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16
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Abstract
The morphological evolution of GeO2 NPs followed by altering water/ethanol ratio in a surfactant-free approach.
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Affiliation(s)
- Morteza Javadi
- Department of Chemistry
- University of Alberta
- Edmonton, Canada
| | - Zhenyu Yang
- Department of Chemistry
- University of Alberta
- Edmonton, Canada
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Hou Z, Li G, Lian H, Lin J. One-dimensional luminescent materials derived from the electrospinning process: preparation, characteristics and application. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm15638e] [Citation(s) in RCA: 99] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Wang H, Tao Y, Zhang G, Xia Y, Gong F, Wu H, Tao G. Germanium Dioxide Nanocubes with Different Size Distributions and Its Gibbs Free Energy Theory. ACTA ACUST UNITED AC 2011; 688:135-40. [DOI: 10.4028/www.scientific.net/msf.688.135] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple synthesis method for single crystal GeO2 nanocubes in a reverse micelle system was reported here. Hydrolysis of germanium tetrachloride (GeCl4) in a micelle system produces GeO2nanocubes in the presence of oleylamine and cetyltrimethylammonium (CTAB). We found that we could obtain GeO2nanocubes with monodisperse size distribution, bimodal size distribution and polydisperse size distribution by varying the reaction parameters. We put forward a feasible explain for this phenomenon with using Gibbs free energy theory, and this theory can give some meaningful guidance for preparing monodisperse nanomaterials.
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Jawad MJ, Hashim MR, Ali NK. Synthesis, Structural, and Optical Properties of Electrochemically Deposited GeO[sub 2] on Porous Silicon. ACTA ACUST UNITED AC 2011; 14:D17. [DOI: 10.1149/1.3516605] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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21
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Dai Y, Liu W, Formo E, Sun Y, Xia Y. Ceramic nanofibers fabricated by electrospinning and their applications in catalysis, environmental science, and energy technology. POLYM ADVAN TECHNOL 2010. [DOI: 10.1002/pat.1839] [Citation(s) in RCA: 270] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Castillo-Ortega MM, Romero-GarcÃa J, RodrÃguez F, Nájera-Luna A, Herrera-Franco PJ. Fibrous membranes of cellulose acetate and poly(vinyl pyrrolidone) by electrospinning method: Preparation and characterization. J Appl Polym Sci 2010. [DOI: 10.1002/app.31722] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Abstract
This Review provides an overview of the synthesis of one-dimensional (1D) composite nanomaterials by electrospinning and their applications. After a brief description of the development of the electrospinning technique, the transformation of an inorganic nanocomponent or polymer into another kind of polymer or inorganic matrix is discussed in terms of the electrospinning process, including the direct-dispersed method, gas-solid reaction, in situ photoreduction, sol-gel method, emulsion electrospinning method, solvent evaporation, and coaxial electrospinning. In addition, various applications of such 1D composite nanomaterials are highlighted in terms of electronic and optical nanodevices, chemical and biological sensors, catalysis and electrocatalysis, superhydrophobic surfaces, environment, energy, and biomedical fields. An increasing number of investigations show that electrospinning has been not only a focus of academic study in the laboratory but is also being applied in a great many technological fields.
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Affiliation(s)
- Xiaofeng Lu
- Alan G. MacDiarmid Institute Jilin University, Changchun 130012, PR China
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Wang X, Duan L, Dong G, Wei P, Wang W, Wang L, Qiu Y. Synthesis and characterization of nano/micro-structured crystalline germanium dioxide with novel morphology. Sci Bull (Beijing) 2009. [DOI: 10.1007/s11434-009-0463-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Lei Y, Xing Y, Fan W, Song S, Zhang H. Synthesis, characterization and optical property of flower-like indium tin sulfide nanostructures. Dalton Trans 2009:1620-3. [DOI: 10.1039/b814602k] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Henderson EJ, Hessel CM, Veinot JGC. Synthesis and Photoluminescent Properties of Size-Controlled Germanium Nanocrystals from Phenyl Trichlorogermane-Derived Polymers. J Am Chem Soc 2008; 130:3624-32. [DOI: 10.1021/ja710286a] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Eric J. Henderson
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Colin M. Hessel
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
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Sewell SL, Rutledge RD, Wright DW. Versatile biomimetic dendrimer templates used in the formation of TiO2 and GeO2. Dalton Trans 2008:3857-65. [DOI: 10.1039/b802842g] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Abstract
Well-aligned tin-doped indium (ITO) nanowires have been prepared using the electrospinning process. The Sn doping mechanism and microstructure have been characterized by x-ray diffraction (XRD) and x-ray photoelectron spectroscopy (XPS). Devices for I-V measurement and field-effect transistors (FETs) were assembled using ITO nanowires with top contact configurations. The effect of Sn doping on the electrical conductivity was significant in that it enhanced the conductance by over 10(7) times, up to ∼1 S cm(-1) for ITO nanowires with an Sn content of 17.5 at.%. The nanowire FETs were operated in the depletion mode with an electron mobility of up to 0.45 cm(2) V(-1) s(-1) and an on/off ratio of 10(3).
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Affiliation(s)
- Dandan Lin
- State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China
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Dharmaraj N, Kim CH, Kim KW, Kim HY, Suh EK. Spectral studies of SnO2 nanofibres prepared by electrospinning method. Spectrochim Acta A Mol Biomol Spectrosc 2006; 64:136-40. [PMID: 16095955 DOI: 10.1016/j.saa.2005.07.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2005] [Accepted: 07/03/2005] [Indexed: 05/03/2023]
Abstract
Tin oxide nanofibres with 100-150 nm diameter has been prepared, for the first time by calcination of poly(vinyl acetate) (PVAc)/SnO2 composite fibres prepared by electrospinning method as precursor. Scanning electron microscopic images revealed cylindrical morphology of the fibres after calcination at 600 degrees C. Both, X-ray diffraction (XRD) and Raman spectral data confirmed the presence of phase pure tetragonal rutile tin oxide after calcination process. Room temperature photoluminescence (PL) spectra of tin oxide nanofibres under excitation at 325 nm wavelength show a strong green emission at 525 nm with a band gap of 2.41 eV. FT-IR spectra confirmed the formation of pure tin oxide after calcination at 600 degrees C and complete removal of PVAc during calcination. UV-vis spectrum of the fibres showed absorption at 315 nm due to the direct electron transfer in tin oxide.
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Affiliation(s)
- N Dharmaraj
- Department of Chemistry, Government Arts College, Udumalpet 642 126, India.
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