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Kong W, Ge X, Lu X, Zhang Q, Zhang M, Feng Y. The Simpler the Better: Ultrafast Air-Plasma Synthesis of 3D Crosslinked Graphene Nanoscroll-Nanosheet Aerogels at Room Temperature for Capacitive Deionization. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2402057. [PMID: 38751062 DOI: 10.1002/smll.202402057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/27/2024] [Indexed: 10/04/2024]
Abstract
Graphene nanoscroll (GNS) is an important 1D tubular form of graphene-derivative materials, which has garnered widely attention. However, conventional fabrication methods commonly suffer from complex processing and time-consuming. Herein, with graphene oxide (GO) as a precursor, the study puts forward a facile air-plasma synthesis strategy to fabricate 3D graphene nanoscroll-nanosheet aerogels (GSSA). It is demonstrated that without using any chemical additives, a highly efficient reduction-exfoliation-scrolling process can be achieved all-in-one at room temperature within 1 s. The GNSs "grew" from 2D graphene sheets and firmly cross-linked them together, and they not only provide a shortcut path for electron transport but also act as intrinsic spacers to prevent restacking of graphene sheets. When using as an electrode material for capacitive deionization (CDI), GSSA exhibits excellent merits of salt-removal performance. These findings open a new pathway to large-scale synthesis of high-quality and high-purity GNS-based materials with promising applications in CDI and beyond.
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Affiliation(s)
- Weiqing Kong
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong, 273165, P. R. China
| | - Xu Ge
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong, 273165, P. R. China
| | - Xiaoyuan Lu
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong, 273165, P. R. China
| | - Qingao Zhang
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong, 273165, P. R. China
| | - Meng Zhang
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong, 273165, P. R. China
| | - Yuanyuan Feng
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong, 273165, P. R. China
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2
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Song B, Cai K, Ma J, Qin QH. Self-Scrolling of a Graphyne Ribbon Near a CNT in Multiphysical Environments. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2402083. [PMID: 39140166 DOI: 10.1002/smll.202402083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Revised: 08/04/2024] [Indexed: 08/15/2024]
Abstract
Graphyne nanoscrolls (GNSs) have attracted significant research interest because of their wide-ranging applications. However, the production of GNSs via a self-scrolling approach is environment dependent. Here, molecular dynamics simulations are conducted to evaluate the self-scrolling behavior of an α-graphyne (α-GY) ribbon on a carbon nanotube (CNT) within various multiphysical environments, accounting for the interactions among temperature, electric field, and argon gas. The results demonstrate that the fabrication of an α-GNS lies in the interplay of van der Waals (vdW) forces among the components in a vacuum. Notably, the α-GY ribbon is easier to scroll onto a thicker CNT. The electric field attenuates the vdW interaction, necessitating thicker CNTs for successful self-scrolling under a stronger electric field. In argon, both the vdW interaction and nanoscale pore contribute to the overlap formation. At 300 K, increasing argon density prolongs the time required for α-GNS formation, with self-scrolling failing beyond a critical gas density threshold. Moreover, the self-scrolling becomes easier at higher temperatures. In multiphysical environments, the interplay between the electric field and the gas density dictates the self-scrolling at low temperatures. Finally, reasonable suggestions are given for successful self-scrolling. The conclusions offer valuable insights for the practical fabrication of α-GNS.
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Affiliation(s)
- Bo Song
- School of Naval Architecture and Civil Engineering, Industrial Technology Research Institute, Jiangsu University of Science and Technology, Zhangjiagang, 215600, China
| | - Kun Cai
- School of Science, Harbin Institute of Technology, Shenzhen, 518055, China
| | - Jian Ma
- School of Naval Architecture and Civil Engineering, Industrial Technology Research Institute, Jiangsu University of Science and Technology, Zhangjiagang, 215600, China
| | - Qing-Hua Qin
- Institute of Advanced Interdisciplinary Technology, Shenzhen MSU-BIT University, Shenzhen, 518172, China
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3
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Gao J, Zhang L, Zhao D, Lu X, Sun Q, Du H, Yang H, Lu K. Aspergillus oryzae β-D-galactosidase immobilization on glutaraldehyde pre-activated amino-functionalized magnetic mesoporous silica: Performance, characteristics, and application in the preparation of sesaminol. Int J Biol Macromol 2024; 270:132101. [PMID: 38734354 DOI: 10.1016/j.ijbiomac.2024.132101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 04/23/2024] [Accepted: 05/03/2024] [Indexed: 05/13/2024]
Abstract
Aspergillus oryzae β-D-galactosidase (β-Gal) efficiently hydrolyzes sesaminol triglucoside into sesaminol, which has higher biological activity. However, β-Gal is difficult to be separate from the reaction mixture and limited by stability. To resolve these problems, β-Gal was immobilized on amino-functionalized magnetic nanoparticles mesoporous silica pre-activated with glutaraldehyde (Fe3O4@mSiO2-β-Gal), which was used for the first time to prepare sesaminol. Under the optimal conditions, the immobilization yield and recovered activity of β-Gal were 57.9 ± 0.3 % and 46.5 ± 0.9 %, and the enzymatic loading was 843 ± 21 Uenzyme/gsupport. The construction of Fe3O4@mSiO2-β-Gal was confirmed by various characterization methods, and the results indicated it was suitable for heterogeneous enzyme-catalyzed reactions. Fe3O4@mSiO2-β-Gal was readily separable under magnetic action and displayed improved activity in extreme pH and temperature conditions. After 45 days of storage at 4 °C, the activity of Fe3O4@mSiO2-β-Gal remained at 92.3 ± 2.8 %, which was 1.29 times than that of free enzyme, and its activity remained above 85 % after 10 cycles. Fe3O4@mSiO2-β-Gal displayed higher affinity and catalytic efficiency. The half-life was 1.41 longer than free enzymes at 55.0 °C. Fe3O4@mSiO2-β-Gal was employed as a catalyst to prepare sesaminol, achieving a 96.7 % conversion yield of sesaminol. The excellent stability and catalytic efficiency provide broad benefits and potential for biocatalytic industry applications.
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Affiliation(s)
- Jinhong Gao
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou, Henan 450044, China; Research Center for Agricultural and Sideline Products Processing, Henan Academy of Agricultural Sciences, Zhengzhou, Henan 450044, China
| | - Lingli Zhang
- School of Chemical Engineering and Food Science, Zhengzhou University of Technology, Zhengzhou, Henan 450044, China
| | - Dongxin Zhao
- School of Chemistry and Chemical Engineering, Henan University of Technology, Lianhua Road 100, Zhengzhou 450001, Henan Province, China
| | - Xin Lu
- Research Center for Agricultural and Sideline Products Processing, Henan Academy of Agricultural Sciences, Zhengzhou, Henan 450044, China
| | - Qiang Sun
- Research Center for Agricultural and Sideline Products Processing, Henan Academy of Agricultural Sciences, Zhengzhou, Henan 450044, China
| | - Heng Du
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou, Henan 450044, China
| | - Hongyan Yang
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou, Henan 450044, China
| | - Kui Lu
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou, Henan 450044, China; School of Chemical Engineering and Food Science, Zhengzhou University of Technology, Zhengzhou, Henan 450044, China.
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4
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Ma Y, Liu J, Lin Y, Jia Y. Recent advances in hierarchical MoS 2/graphene-based materials for supercapacitor applications. Phys Chem Chem Phys 2023; 25:8263-8280. [PMID: 36912732 DOI: 10.1039/d2cp05685b] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
Abstract
Hierarchical MoS2/graphene (MoS2/G) has been widely researched in energy storage via supercapacitors. The combination of MoS2 with graphene not only provides high conductivity but also enhances the structural stability, which are critical factors determining the electrochemical performance for energy storage. In this review, the recent development of various hierarchical MoS2/G nanostructures in supercapacitor applications is summarized by classifying the materials into MoS2/G nanospheres, MoS2/G nanosheets, and MoS2/G-based ternary composite. The description of the structural characteristics and electrochemical performance gives a clear and profound understanding of hierarchical MoS2/G nanostructures as a supercapacitor material. In addition, further research prospects of hierarchical MoS2/G are suggested.
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Affiliation(s)
- Ying Ma
- School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408000, P. R. China.
- Energy and Environment Engineering Institute, Nanchang Institute of Technology, Nanchang 330044, P. R. China
| | - Jinchuan Liu
- School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408000, P. R. China.
- Energy and Environment Engineering Institute, Nanchang Institute of Technology, Nanchang 330044, P. R. China
| | - Yinhe Lin
- School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408000, P. R. China.
- Energy and Environment Engineering Institute, Nanchang Institute of Technology, Nanchang 330044, P. R. China
| | - Yulong Jia
- School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408000, P. R. China.
- Energy and Environment Engineering Institute, Nanchang Institute of Technology, Nanchang 330044, P. R. China
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Huang X, Xiao J, Yi Q, Li D, Liu C, Liu Y. Construction of core-shell Fe 3O 4@GO-CoPc photo-Fenton catalyst for superior removal of tetracycline: The role of GO in promotion of H 2O 2 to •OH conversion. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 308:114613. [PMID: 35124310 DOI: 10.1016/j.jenvman.2022.114613] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 01/14/2022] [Accepted: 01/24/2022] [Indexed: 06/14/2023]
Abstract
A novel core-shell structured Fe3O4@GO-CoPc magnetic catalyst, which is with magnetite (Fe3O4) as the core, graphene oxide (GO) as the interlayer and cobalt-phthalocyanine (CoPc) as the shell, was successfully prepared and used as a heterogeneous photo-Fenton catalyst for tetracycline (TC) degradation in this work. The core-shell structure of the catalyst was confirmed by XRD, FTIR, SEM and TEM. BET and magnetic hysteresis loops measurements indicated that Fe3O4@GO-CoPc catalyst owned large specific surface area and could be easily recovered under an external magnetic field. Meanwhile, the experimental results of TC degradation demonstrated that the photo-Fenton efficiency of Fe3O4@GO-CoPc was excellent. When the reaction time was 120 min, TC could be degraded almost completely in the photo-Fenton system with Fe3O4@GO-CoPc. The high photo-Fenton catalytic activity of Fe3O4@GO-CoPc could be resulted from the effective transfer of photo-generated electrons between CoPc and Fe3O4 by GO. Moreover, the main reaction species, •OH, O2•-, 1O2 and h+, were verified by the analysis of active species in this system. Finally, the mechanism analyses and quantitative analysis results of active species indicated that the introduction of GO accelerated the cycle between Fe(II) and Fe(III) as well as improved the effective utilization of H2O2 (the efficiency of conversion of H2O2 to •OH).
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Affiliation(s)
- Xiaohan Huang
- Department of Environmental Science and Engineering, College of Environment and Resources, Xiangtan University, Xiangtan, 411105, China
| | - Jianfei Xiao
- Hunan Non-ferrous Metals Holding Group Co., Ltd, Changsha, 410000, China
| | - Qing Yi
- Department of Environmental Science and Engineering, College of Environment and Resources, Xiangtan University, Xiangtan, 411105, China
| | - Dejian Li
- Department of Environmental Science and Engineering, College of Environment and Resources, Xiangtan University, Xiangtan, 411105, China
| | - Chenrui Liu
- Department of Environmental Science and Engineering, College of Environment and Resources, Xiangtan University, Xiangtan, 411105, China
| | - Yun Liu
- Department of Environmental Science and Engineering, College of Environment and Resources, Xiangtan University, Xiangtan, 411105, China.
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6
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Yu S, Lu Z, Xie J, Hu J, Cao Y. Carbon-coated Fe 3O 4 nanoparticles in situ grown on 3D cross-linked carbon nanosheets as anodic materials for high capacity lithium and sodium-ion batteries. NEW J CHEM 2022. [DOI: 10.1039/d2nj01838a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Carbon coated Fe3O4 nanoparticles were grown in situ on 3D cross-linked carbon nanosheets, and exhibited excellent performance for lithium ion batteries.
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Affiliation(s)
- Shuijing Yu
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, 830046, Xinjiang, P. R. China
| | - Zhenjiang Lu
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, 830046, Xinjiang, P. R. China
| | - Jing Xie
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, 830046, Xinjiang, P. R. China
| | - Jindou Hu
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, 830046, Xinjiang, P. R. China
| | - Yali Cao
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, 830046, Xinjiang, P. R. China
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7
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Jiang B, Liang K, Yang Z, Guo K, Shaik F, Zheng J. FeCoNiB@Boron-doped vertically aligned graphene arrays: A self-supported electrocatalyst for overall water splitting in a wide pH range. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138459] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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8
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Lin SY, Chang SL, Chiang CR, Li WB, Liu HY, Lin MF. Feature-Rich Geometric and Electronic Properties of Carbon Nanoscrolls. NANOMATERIALS 2021; 11:nano11061372. [PMID: 34067250 PMCID: PMC8224739 DOI: 10.3390/nano11061372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/17/2021] [Accepted: 05/18/2021] [Indexed: 12/01/2022]
Abstract
How to form carbon nanoscrolls with non-uniform curvatures is worthy of a detailed investigation. The first-principles method is suitable for studying the combined effects due to the finite-size confinement, the edge-dependent interactions, the interlayer atomic interactions, the mechanical strains, and the magnetic configurations. The complex mechanisms can induce unusual essential properties, e.g., the optimal structures, magnetism, band gaps and energy dispersions. To reach a stable spiral profile, the requirements on the critical nanoribbon width and overlapping length will be thoroughly explored by evaluating the width-dependent scrolling energies. A comparison of formation energy between armchair and zigzag nanoscrolls is useful in understanding the experimental characterizations. The spin-up and spin-down distributions near the zigzag edges are examined for their magnetic environments. This accounts for the conservation or destruction of spin degeneracy. The various curved surfaces on a relaxed nanoscroll will create complicated multi-orbital hybridizations so that the low-lying energy dispersions and energy gaps are expected to be very sensitive to ribbon width, especially for those of armchair systems. Finally, the planar, curved, folded, and scrolled graphene nanoribbons are compared with one another to illustrate the geometry-induced diversity.
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Affiliation(s)
- Shih-Yang Lin
- Department of Physics, National Chung Cheng University, Chiayi 621, Taiwan;
| | - Sheng-Lin Chang
- Department of Electrophysics, National Chiao Tung University, Hsinchu 300, Taiwan
- Correspondence: (S.-L.C.); (M.-F.L.)
| | - Cheng-Ru Chiang
- Department of Physics, National Cheng Kung University, Tainan 701, Taiwan; (C.-R.C.); (W.-B.L.); (H.-Y.L.)
| | - Wei-Bang Li
- Department of Physics, National Cheng Kung University, Tainan 701, Taiwan; (C.-R.C.); (W.-B.L.); (H.-Y.L.)
| | - Hsin-Yi Liu
- Department of Physics, National Cheng Kung University, Tainan 701, Taiwan; (C.-R.C.); (W.-B.L.); (H.-Y.L.)
| | - Ming-Fa Lin
- Department of Physics, National Cheng Kung University, Tainan 701, Taiwan; (C.-R.C.); (W.-B.L.); (H.-Y.L.)
- Correspondence: (S.-L.C.); (M.-F.L.)
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9
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Steady self-scrolling of graphene sheets upon the solvation status of adsorbed polyhexylthiophene. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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10
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Kim K, Park MJ. Ice-assisted synthesis of functional nanomaterials: the use of quasi-liquid layers as nanoreactors and reaction accelerators. NANOSCALE 2020; 12:14320-14338. [PMID: 32458875 DOI: 10.1039/d0nr02624g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The discovery of peculiar quasi-liquid layers on ice surfaces marks a major breakthrough in ice-related sciences, as the facile tuning of the reactions and morphologies of substances in contact with these layers make ice-assisted chemistry a low-cost, environmentally benign, and ubiquitous methodology for the synthesis of nanomaterials with improved functionality. Ice-templated synthesis of porous materials offers the appealing features of rapid self-organization and remarkable property changes arising from confinement effects and affords materials that have found a diverse range of applications such as batteries, supercapacitors, and gas separation. Moreover, much attention has been drawn to the acceleration of chemical reactions and transformations on the ice surface due to the freeze concentration effect, fast self-diffusion of surface water, and modulated surface potential energy. Some of these results are related to the accumulation of inorganic contaminants in glaciers and the blockage of natural gas pipelines. As an emerging theme in nanomaterial design, the dimension-controlled synthesis of hybrid materials with unprecedentedly enhanced properties on ice surfaces has attracted much interest. However, a deep understanding of quasi-liquid layer characteristics (and hence, the development of cutting-edge analytical technologies with high surface sensitivity) is required to achieve the current goal of ice-assisted chemistry, namely the preparation of tailor-made materials with the desired properties.
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Affiliation(s)
- Kyoungwook Kim
- Department of Chemistry, Division of Materials Science, Pohang University of Science and Technology (POSTECH), Pohang, Korea 790-784.
| | - Moon Jeong Park
- Department of Chemistry, Division of Materials Science, Pohang University of Science and Technology (POSTECH), Pohang, Korea 790-784.
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11
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Pham TN, Hur J, Kim IT, Lee Y, Lee Y. Hybrid Electrode Innovations in Triple and Quadruple Dimensions for Lithium‐Ion Batteries. ChemElectroChem 2019. [DOI: 10.1002/celc.201901769] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tuyet Nhung Pham
- Department of BioNano TechnologyGachon University 1342 Seongnamdaero, Sujeong-gu Seongnam-si, Gyeonggi-do 13120 Republic of Korea
| | - Jaehyun Hur
- Department of Chemical and Biological EngineeringGachon University 1342 Seongnamdaero, Sujeong-gu Seongnam-si, Gyeonggi-do 13120 Republic of Korea
| | - Il Tae Kim
- Department of Chemical and Biological EngineeringGachon University 1342 Seongnamdaero, Sujeong-gu Seongnam-si, Gyeonggi-do 13120 Republic of Korea
| | - Yongil Lee
- Korea Railroad Research Institute (KRRI) 176 Cheoldobakmulkwan-ro Uiwang-si 16105, Gyeonggi-do Republic of Korea
| | - Young‐Chul Lee
- Department of BioNano TechnologyGachon University 1342 Seongnamdaero, Sujeong-gu Seongnam-si, Gyeonggi-do 13120 Republic of Korea
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12
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Sathyan M, Jayaraj MK, John H. Rolling and unrolling of graphene sheets via in situ generation of superparamagnetic iron oxide nanoparticles. Phys Chem Chem Phys 2019; 21:16413-16417. [PMID: 31188365 DOI: 10.1039/c9cp01507h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
This manuscript reports a novel method for the automatic rolling and unrolling of reduced graphene oxide sheets using in situ generated superparamagnetic iron oxide nanoparticles. The graphene oxide synthesized through a low temperature modified hydrothermal method is subjected to hydrothermal reduction to obtain reduced graphene oxide (rGO). The as-prepared rGO was subjected to a second level of hydrothermal reduction in the presence of in situ generated superparamagnetic iron oxide nanoparticles, which led to the formation of graphene nanoscrolls decorated with superparamagnetic iron oxide nanoparticles. The nanoscrolls are unrolled to produce rGO sheets when the iron oxide nanoparticles are washed with hydrochloric acid. The repeatability of nanoscroll formation was examined by repeating the hydrothermal reaction for the in situ generation of superparamagnetic iron oxide nanoparticles in the presence of opened up rGO sheets. This reaction again made the rGO sheets scrolled. A blank reaction was also carried out without iron oxide particles to confirm the necessity of Fe3O4 in nanoscroll formation.
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Affiliation(s)
- Meera Sathyan
- Department of Polymer Science and Rubber Technology, India
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13
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Zhao W, Wang L, Pei C, Wei C, You H, Zhang J, Li H. Impact of pH on Regulating Ion Encapsulation of Graphene Oxide Nanoscroll for Pressure Sensing. NANOMATERIALS 2019; 9:nano9040548. [PMID: 30987290 PMCID: PMC6523837 DOI: 10.3390/nano9040548] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 03/21/2019] [Accepted: 03/23/2019] [Indexed: 11/24/2022]
Abstract
Recently, graphene oxide nanoscroll (GONS) has attracted much attention due to its excellent properties. Encapsulation of nanomaterials in GONS can greatly enhance its performance while ion encapsulation is still unexplored. Herein, various ions including hydronium ion (H3O+), Fe3+, Au3+, and Zn2+ were encapsulated in GONSs by molecular combing acidic graphene oxide (GO) solution. No GONS was obtained when the pH of the GO solution was greater than 9. A few GONSs without encapsulated ion were obtained at the pH of 5–8. When the pH decreased from 5 to 0.15, high-density GONSs with encapsulated ions were formed and the average height of GONS was increased from ~50 to ~190 nm. These results could be attributed to the varied repulsion between carboxylic acid groups located at the edges of GO nanosheets. Encapsulated metal ions were converted to nanoparticles in GONS after high-temperature annealing. The resistance-type device based on reduced GONS (rGONS) mesh with encapsulated H3O+ showed good response for applied pressure from 600 to 8700 Pa, which manifested much better performance compared with that of a device based on rGONS mesh without H3O+.
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Affiliation(s)
- Weihao Zhao
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, China.
| | - Lin Wang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, China.
| | - Chengjie Pei
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, China.
| | - Cong Wei
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, China.
| | - Hui You
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, China.
| | - Jindong Zhang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, China.
| | - Hai Li
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, China.
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14
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Wang Y, Jiang C, Chen Q, Zhou Q, Wang H, Wan J, Ma L, Wang J. Highly Promoted Carrier Mobility and Intrinsic Stability by Rolling Up Monolayer Black Phosphorus into Nanoscrolls. J Phys Chem Lett 2018; 9:6847-6852. [PMID: 30449107 DOI: 10.1021/acs.jpclett.8b02913] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Rolling up two-dimensional (2D) materials into nanoscrolls could not only retain the excellent properties of their 2D hosts but also display intriguing physical and chemical properties that arise from their 1D tubular structures. Here, we report a new class of black phosphorus nanoscrolls (bPNSs), which are stable at room-temperature and energetically more favorable than 2D bP. Most strikingly, these bPNSs hold tunable direct band gaps and extremely high mobilities (e.g., the mobility of the double-layer bPNS is about 20-fold higher than that of 2D bP monolayer). Their unique self-encapsulation structure and layer-dependent conduction band minimum can largely prevent the entrance of O2 and the production of O2- and thereby suppress the possible environmental degradation as well. The enhanced intrinsic stability and promoted electronic properties render bPNSs great promise in many advanced electronics or optoelectronics applications.
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Affiliation(s)
- Yitian Wang
- School of Physics , Southeast University , Nanjing 211189 , China
| | - Chenghuan Jiang
- School of Physics , Nanjing University , Nanjing 210093 , China
| | - Qian Chen
- School of Physics , Southeast University , Nanjing 211189 , China
| | - Qionghua Zhou
- School of Physics , Southeast University , Nanjing 211189 , China
| | - Haowei Wang
- Mechanical Engineering Department , California State University Fullerton , Fullerton , California 92831 , United States
| | - Jianguo Wan
- School of Physics , Nanjing University , Nanjing 210093 , China
| | - Liang Ma
- School of Physics , Southeast University , Nanjing 211189 , China
| | - Jinlan Wang
- School of Physics , Southeast University , Nanjing 211189 , China
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15
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Wang Y, Li X, He M, Du H, Wu X, Hao J, Li B. Core-shells on nanosheets: Fe3O4@carbon-reduced graphene oxide composites for lithium-ion storage. J Solid State Electrochem 2018. [DOI: 10.1007/s10008-018-4105-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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16
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Zhao Y, Ding C, Hao Y, Zhai X, Wang C, Li Y, Li J, Jin H. Neat Design for the Structure of Electrode To Optimize the Lithium-Ion Battery Performance. ACS APPLIED MATERIALS & INTERFACES 2018; 10:27106-27115. [PMID: 30044079 DOI: 10.1021/acsami.8b00873] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
The appearance of mechanical cracks originated from anisotropic expansion and shrinkage of electrode particles during Li+ de/intercalation is a major cause of the capacity fading in Li-ion batteries. Well-designed and controlled nanostructures of electrodes have shown a prominent prospect for solving this obstacle. Here, we report a novel and convenient strategy for the preparation of graphene nanoscroll wrapping Nb2O5 nanoparticles (denoted as T-Nb2O5/G). First, high energy ball milling is conducted to acquire softly agglomerated T-Nb2O5 nanoparticles owing to its spontaneous reduction of surface energy among these single particles. Then freeze-drying leads to the formation of graphene nanoscroll, which easily realizes the in situ wrapping over softly agglomerated T-Nb2O5 nanoparticles. Extended cycling tests demonstrate that such T-Nb2O5/G yields a high reversible specific capacity of 222 mA h g-1 over 700 cycles at 1C. The dominated surface capacitive insertion processes possessing favorable kinetics enable T-Nb2O5/G to exhibit excellent rate performance, which achieve a capacity of 110 mA h g-1 at 10C. A combined ex situ X-ray diffraction, scanning electron microscopy, and transmission electron microscopy investigation reveal that the long-term cycling stability of T-Nb2O5/G is attributed to the excellent structural stability of the electrode, in which the synergistic effect between the softly agglomerated T-Nb2O5 nanoparticles and graphene nanoscroll prevents the formation of mechanical cracks.
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Affiliation(s)
- Yongjie Zhao
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering , Beijing Institute of Technology , Beijing 100081 , P. R. China
| | - Caihua Ding
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering , Beijing Institute of Technology , Beijing 100081 , P. R. China
| | - Yanan Hao
- State Key Laboratory of Information Photonics and Optical Communications, School of Science , Beijing University of Posts and Telecommunications , Beijing 100876 , P. R. China
| | - Ximei Zhai
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering , Beijing Institute of Technology , Beijing 100081 , P. R. China
| | - Chengzhi Wang
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering , Beijing Institute of Technology , Beijing 100081 , P. R. China
| | - Yutao Li
- Materials Science and Engineering Program and Texas Materials Institute , University of Texas at Austin , Austin , Texas 78712 , United States
| | - Jingbo Li
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering , Beijing Institute of Technology , Beijing 100081 , P. R. China
| | - Haibo Jin
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering , Beijing Institute of Technology , Beijing 100081 , P. R. China
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17
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Kumar R, Singh RK, Alaferdov AV, Moshkalev SA. Rapid and controllable synthesis of Fe3O4 octahedral nanocrystals embedded-reduced graphene oxide using microwave irradiation for high performance lithium-ion batteries. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.05.157] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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18
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Ma J, Guo X, Yan Y, Xue H, Pang H. FeO x -Based Materials for Electrochemical Energy Storage. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1700986. [PMID: 29938176 PMCID: PMC6010812 DOI: 10.1002/advs.201700986] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 01/30/2018] [Indexed: 05/22/2023]
Abstract
Iron oxides (FeO x ), such as Fe2O3 and Fe3O4 materials, have attracted much attention because of their rich abundance, low cost, and environmental friendliness. However, FeO x , which is similar to most transition metal oxides, possesses a poor rate capability and cycling life. Thus, FeO x -based materials consisting of FeO x , carbon, and metal-based materials have been widely explored. This article mainly discusses FeO x -based materials (Fe2O3 and Fe3O4) for electrochemical energy storage applications, including supercapacitors and rechargeable batteries (e.g., lithium-ion batteries and sodium-ion batteries). Furthermore, future perspectives and challenges of FeO x -based materials for electrochemical energy storage are briefly discussed.
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Affiliation(s)
- Jingyi Ma
- School of Chemistry and Chemical EngineeringInstitute for Innovative Materials and EnergyYangzhou UniversityYangzhou225009JiangsuP. R. China
| | - Xiaotian Guo
- School of Chemistry and Chemical EngineeringInstitute for Innovative Materials and EnergyYangzhou UniversityYangzhou225009JiangsuP. R. China
| | - Yan Yan
- School of Chemistry and Chemical EngineeringInstitute for Innovative Materials and EnergyYangzhou UniversityYangzhou225009JiangsuP. R. China
| | - Huaiguo Xue
- School of Chemistry and Chemical EngineeringInstitute for Innovative Materials and EnergyYangzhou UniversityYangzhou225009JiangsuP. R. China
| | - Huan Pang
- School of Chemistry and Chemical EngineeringInstitute for Innovative Materials and EnergyYangzhou UniversityYangzhou225009JiangsuP. R. China
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19
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Gao L, Zhang Z, Zhao J, Zhou J, Miao Z, Si W, Zhuo S. Controllable synthesis of graphene scrolls and their performance for supercapacitors. RSC Adv 2018; 8:19164-19170. [PMID: 35539674 PMCID: PMC9080597 DOI: 10.1039/c8ra02231c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 04/27/2018] [Indexed: 11/23/2022] Open
Abstract
A graphene scroll (GSC) is a new type of graphene-derivative material, that has widely attracted attention. However, the controllable preparation of GSCs is a major factor influencing their development and application. In this work, sodium citrate (SC) was added to a graphene oxide (GO) aqueous suspension and GSCs were controllably prepared on a large-scale by a cold quenching method. The results show that the number of scroll layers and the curling degree of the GSCs could be controlled by the quantity of SC added. The diameter of the GSCs increased when SC was added. Compared to the GSC without SC (265 nm), the average diameter of GSC(SC-40) (obtained by adding 40 mg SC to 100 mL GO solution (1 mg mL-1)) is 491 nm. When excessive SC was added, such as 100 mg, the average diameter reached 679 nm. Moreover, these GSCs were used as a supercapacitor electrode material and the electrochemical performance was tested. The specific capacitance of GSC(SC-40) (178 F g-1) is higher than that of the GSC without SC (107 F g-1) at the same current density of 1.0 A g-1. However, when a larger quantity of SC was added, the specific capacitance of the GSCs decreased. So, the number of scroll layers and the curling degree of the GSCs have a significant effect on the electrochemical properties of the supercapacitor.
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Affiliation(s)
- Lianlian Gao
- School of Chemistry and Chemical Engineering, Shandong University of Technology Zibo 255049 P. R. China
| | - Zhigang Zhang
- School of Chemistry and Chemical Engineering, Shandong University of Technology Zibo 255049 P. R. China
| | - Jinping Zhao
- School of Chemistry and Chemical Engineering, Shandong University of Technology Zibo 255049 P. R. China
| | - Jin Zhou
- School of Chemistry and Chemical Engineering, Shandong University of Technology Zibo 255049 P. R. China
| | - Zhichao Miao
- School of Chemistry and Chemical Engineering, Shandong University of Technology Zibo 255049 P. R. China
| | - Weijiang Si
- School of Chemistry and Chemical Engineering, Shandong University of Technology Zibo 255049 P. R. China
| | - Shuping Zhuo
- School of Chemistry and Chemical Engineering, Shandong University of Technology Zibo 255049 P. R. China
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20
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Dhar P, Gaur SS, Kumar A, Katiyar V. Cellulose Nanocrystal Templated Graphene Nanoscrolls for High Performance Supercapacitors and Hydrogen Storage: An Experimental and Molecular Simulation Study. Sci Rep 2018; 8:3886. [PMID: 29497075 PMCID: PMC5832814 DOI: 10.1038/s41598-018-22123-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 12/27/2017] [Indexed: 11/20/2022] Open
Abstract
Graphene nanoscrolls (GNS), due to their remarkably interesting properties, have attracted significant interest with applications in various engineering sectors. However, uncontrolled morphologies, poor yield and low quality GNS produced through traditional routes are major challenges associated. We demonstrate sustainable approach of utilizing bio-derived cellulose nanocrystals (CNCs) as template for fabrication of GNS with tunable morphological dimensions ranging from micron-to-nanoscale(controlled length < 1 μm or >1 μm), alongwith encapsulation of catalytically active metallic-species in scroll interlayers. The surface-modified magnetic CNCs acts as structural-directing agents which provides enough momentum to initiate self-scrolling phenomenon of graphene through van der Waals forces and π-π interactions, mechanism of which is demonstrated through experimental and molecular simulation studies. The proposed approach of GNS fabrication provides flexibility to tune physico-chemical properties of GNS by simply varying interlayer spacing, scrolling density and fraction of encapsulated metallic nanoparticles. The hybrid GNS with confined palladium or platinum nanoparticles (at lower loading ~1 wt.%) shows enhanced hydrogen storage capacity (~0.2 wt.% at~20 bar and ~273 K) and excellent supercapacitance behavior (~223–357 F/g) for prolonged cycles (retention ~93.5–96.4% at ~10000 cycles). The current strategy of utilizing bio-based templates can be further extended to incorporate complex architectures or nanomaterials in GNS core or inter-layers, which will potentially broaden its applications in fabrication of high-performance devices.
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Affiliation(s)
- Prodyut Dhar
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - Surendra Singh Gaur
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - Amit Kumar
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - Vimal Katiyar
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India.
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21
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Alloying in an Intercalation Host: Metal Titanium Niobates as Anodes for Rechargeable Alkali-Ion Batteries. Chem Asian J 2018; 13:299-310. [DOI: 10.1002/asia.201701602] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 12/19/2017] [Indexed: 11/07/2022]
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22
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Baptista-Pires L, Orozco J, Guardia P, Merkoçi A. Architecting Graphene Oxide Rolled-Up Micromotors: A Simple Paper-Based Manufacturing Technology. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:1702746. [PMID: 29171716 DOI: 10.1002/smll.201702746] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 09/18/2017] [Indexed: 05/27/2023]
Abstract
A graphene oxide rolled-up tube production process is reported using wax-printed membranes for the fabrication of on-demand engineered micromotors at different levels of oxidation, thickness, and lateral dimensions. The resultant graphene oxide rolled-up tubes can show magnetic and catalytic movement within the addition of magnetic nanoparticles or sputtered platinum in the surface of graphene-oxide-modified wax-printed membranes prior to the scrolling process. As a proof of concept, the as-prepared catalytic graphene oxide rolled-up micromotors are successfully exploited for oil removal from water. This micromotor production technology relies on an easy, operator-friendly, fast, and cost-efficient wax-printed paper-based method and may offer a myriad of hybrid devices and applications.
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Affiliation(s)
- Luis Baptista-Pires
- Nanobioelectronics and Biosensors Group, Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus de la UAB, 08193, Bellaterra, Barcelona, Spain
| | - Jahir Orozco
- Nanobioelectronics and Biosensors Group, Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus de la UAB, 08193, Bellaterra, Barcelona, Spain
| | - Pablo Guardia
- Nanobioelectronics and Biosensors Group, Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus de la UAB, 08193, Bellaterra, Barcelona, Spain
| | - Arben Merkoçi
- Nanobioelectronics and Biosensors Group, Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus de la UAB, 08193, Bellaterra, Barcelona, Spain
- ICREA, Passeig Lluis Companys, 23, 08010, Barcelona, Spain
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23
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Zhang Z, Zhao J, Gao L, Zhou J, Miao Z, Zhao Y, Zhuo S. A novel three-dimensional graphene for remarkable performance of electrochemical energy storage. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2017.12.038] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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24
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Liu Y, Hassan Siddique A, Huang H, Fang Q, Deng W, Zhou X, Lu H, Liu Z. In situ preparation of Fe 3O 4 in a carbon hybrid of graphene nanoscrolls and carbon nanotubes as high performance anode material for lithium-ion batteries. NANOTECHNOLOGY 2017; 28:465401. [PMID: 29063865 DOI: 10.1088/1361-6528/aa8dae] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A new conductive carbon hybrid combining both reduced graphene nanoscrolls and carbon nanotubes (rGNSs-CNTs) is prepared, and used to host Fe3O4 nanoparticles through an in situ synthesis method. As an anode material for LIBs, the obtained Fe3O4@rGNSs-CNTs shows good electrochemical performance. At a current density of 0.1 A g-1, the anode material shows a high reversible capacity of 1232.9 mAh g-1 after 100 cycles. Even at a current density of 1 A g-1, it still achieves a high reversible capacity of 812.3 mAh g-1 after 200 cycles. Comparing with bare Fe3O4 and Fe3O4/rGO composite anode materials without nanoscroll structure, Fe3O4@rGNSs-CNTs shows much better rate capability with a reversible capacity of 605.0 and 500.0 mAh g-1 at 3 and 5 A g-1, respectively. The excellent electrochemical performance of the Fe3O4@rGNSs-CNTs anode material can be ascribed to the hybrid structure of rGNSs-CNTs, and their strong interaction with Fe3O4 nanoparticles, which on one hand provides more pathways for lithium ions and electrons, on the other hand effectively relieves the volume change of Fe3O4 during the charge-discharge process.
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Affiliation(s)
- Yuewen Liu
- Key Laboratory of Graphene Technologies and Applications of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences, Ningbo, 315201, People's Republic of China
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25
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Luo J, Sun S, Peng J, Liu B, Huang Y, Wang K, Zhang Q, Li Y, Jin Y, Liu Y, Qiu Y, Li Q, Han J, Huang Y. Graphene-Roll-Wrapped Prussian Blue Nanospheres as a High-Performance Binder-Free Cathode for Sodium-Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2017; 9:25317-25322. [PMID: 28691793 DOI: 10.1021/acsami.7b06334] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Sodium iron hexacyanoferrate (Fe-HCF) has been proposed as a promising cathode material for sodium-ion batteries (SIBs) because of its desirable advantages, including high theoretical capacity (∼170 mAh g-1), eco-friendliness, and low cost of worldwide rich sodium and iron resources. Nonetheless, its application faces a number of obstacles due to poor electronic conductivity and structural instability. In this work, Fe-HCF nanospheres (NSs) were first synthesized and fabricated by an in situ graphene rolls (GRs) wrapping method, forming a 1D tubular hierarchical structure of Fe-HCF NSs@GRs. GRs not only provide fast electronic conduction path for Fe-HCF NSs but also effectively prevent organic electrolyte from reaching active materials and inhibit the occurrence of side reactions. The Fe-HCF NSs@GRs composite has been used as a binder-free cathode with a capacity of ∼110 mAh g-1 at a current density of 150 mA g-1 (∼1C), the capacity retention of ∼90% after 500 cycles. Moreover, the Fe-HCF NSs@GRs cathode displays a super high rate capability with ∼95 mAh g-1 at 1500 mA g-1 (∼10C). The results suggest that the 1D tubular structure of 2D GRs-wrapped Fe-HCF NSs is promising as a high-performance cathode for SIBs.
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Affiliation(s)
- Jiahuan Luo
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology , Wuhan, Hubei 430074, China
| | - Shixiong Sun
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology , Wuhan, Hubei 430074, China
| | - Jian Peng
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology , Wuhan, Hubei 430074, China
| | - Bo Liu
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology , Wuhan, Hubei 430074, China
| | - Yangyang Huang
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology , Wuhan, Hubei 430074, China
| | - Kun Wang
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology , Wuhan, Hubei 430074, China
| | - Qin Zhang
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology , Wuhan, Hubei 430074, China
| | - Yuyu Li
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology , Wuhan, Hubei 430074, China
| | - Yu Jin
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology , Wuhan, Hubei 430074, China
| | - Yi Liu
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology , Wuhan, Hubei 430074, China
| | - Yuegang Qiu
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology , Wuhan, Hubei 430074, China
| | - Qing Li
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology , Wuhan, Hubei 430074, China
| | - Jiantao Han
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology , Wuhan, Hubei 430074, China
| | - Yunhui Huang
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology , Wuhan, Hubei 430074, China
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26
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Wang L, Yang P, Liu Y, Fang X, Shi X, Wu S, Huang L, Li H, Huang X, Huang W. Scrolling up graphene oxide nanosheets assisted by self-assembled monolayers of alkanethiols. NANOSCALE 2017; 9:9997-10001. [PMID: 28682391 DOI: 10.1039/c7nr03072j] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We report a simple and novel method for the fabrication of high-quality nanoscrolls of graphene oxide (GO) and graphene oxide decorated with silver nanoparticles (GO-Ag) on a gold substrate through a scrolling process assisted by the self-assembly of alkanethiol monolayers. The yield and rate of the scrolling process were highly dependent on the lengths of the alkanethiol molecules, and could be well described by power law functions. Importantly, compared to nanosheets, nanoscrolls of GO and GO-Ag showed superior performance in humidity sensing due to their unique scrolled structures.
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Affiliation(s)
- Lin Wang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (Nanjing Tech), 30 South PuZhu Road, Nanjing 211816, China.
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27
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Liu J, Hou M, Shen Y, Chen L, Wang Y, Xia Y. Electrochemical Performance of Li 4 Ti 5 O 12 Nanowire/Fe 3 O 4 Nanoparticle Compound as Anode Material of Lithium Ion Batteries. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.04.093] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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28
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Zhang P, Li J, Lv L, Zhao Y, Qu L. Vertically Aligned Graphene Sheets Membrane for Highly Efficient Solar Thermal Generation of Clean Water. ACS NANO 2017; 11:5087-5093. [PMID: 28423271 DOI: 10.1021/acsnano.7b01965] [Citation(s) in RCA: 304] [Impact Index Per Article: 43.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Efficient utilization of solar energy for clean water is an attractive, renewable, and environment friendly way to solve the long-standing water crisis. For this task, we prepared the long-range vertically aligned graphene sheets membrane (VA-GSM) as the highly efficient solar thermal converter for generation of clean water. The VA-GSM was prepared by the antifreeze-assisted freezing technique we developed, which possessed the run-through channels facilitating the water transport, high light absorption capacity for excellent photothermal transduction, and the extraordinary stability in rigorous conditions. As a result, VA-GSM has achieved average water evaporation rates of 1.62 and 6.25 kg m-2 h-1 under 1 and 4 sun illumination with a superb solar thermal conversion efficiency of up to 86.5% and 94.2%, respectively, better than that of most carbon materials reported previously, which can efficiently produce the clean water from seawater, common wastewater, and even concentrated acid and/or alkali solutions.
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Affiliation(s)
- Panpan Zhang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education, School of Chemistry, Beijing Institute of Technology , Beijng 100081, P. R. China
| | - Jing Li
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education, School of Chemistry, Beijing Institute of Technology , Beijng 100081, P. R. China
| | - Lingxiao Lv
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education, School of Chemistry, Beijing Institute of Technology , Beijng 100081, P. R. China
| | - Yang Zhao
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education, School of Chemistry, Beijing Institute of Technology , Beijng 100081, P. R. China
| | - Liangti Qu
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education, School of Chemistry, Beijing Institute of Technology , Beijng 100081, P. R. China
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29
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Fang Q, Zhou X, Deng W, Liu Y, Zheng Z, Liu Z. Nitrogen-Doped Graphene Nanoscroll Foam with High Diffusion Rate and Binding Affinity for Removal of Organic Pollutants. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1603779. [PMID: 28145634 DOI: 10.1002/smll.201603779] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 12/24/2016] [Indexed: 06/06/2023]
Abstract
A nitrogen-doped 3D graphene foam assembled with nanoscroll structure is constructed via a facile mild-heating methodology using a polar molecule of formamide as the driving regent. The as-prepared graphene nanoscroll foam exhibits promising performance in organic pollutant removal with improved adsorption rate and high binding affinity, and is thought to be a novel adsorption material.
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Affiliation(s)
- Qile Fang
- Key Laboratory of Graphene Technologies and Applications of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Xufeng Zhou
- Key Laboratory of Graphene Technologies and Applications of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Wei Deng
- Key Laboratory of Graphene Technologies and Applications of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Yuewen Liu
- Key Laboratory of Graphene Technologies and Applications of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Zhi Zheng
- Key Laboratory of Graphene Technologies and Applications of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Zhaoping Liu
- Key Laboratory of Graphene Technologies and Applications of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
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30
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Liu Y, Wang L, Zhang H, Ran F, Yang P, Li H. Graphene oxide scroll meshes encapsulated Ag nanoparticles for humidity sensing. RSC Adv 2017. [DOI: 10.1039/c7ra06177c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
rGO–Ag scroll meshes shows 3 orders of magnitude higher humidity response compared to that of rGO scroll meshes.
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Affiliation(s)
- Yang Liu
- Key Laboratory of Flexible Electronics (KLOFE)
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing Tech University (Nanjing Tech)
- Nanjing 211816
| | - Lin Wang
- Key Laboratory of Flexible Electronics (KLOFE)
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing Tech University (Nanjing Tech)
- Nanjing 211816
| | - Hao Zhang
- Key Laboratory of Flexible Electronics (KLOFE)
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing Tech University (Nanjing Tech)
- Nanjing 211816
| | - Feirong Ran
- Key Laboratory of Flexible Electronics (KLOFE)
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing Tech University (Nanjing Tech)
- Nanjing 211816
| | - Peng Yang
- Key Laboratory of Flexible Electronics (KLOFE)
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing Tech University (Nanjing Tech)
- Nanjing 211816
| | - Hai Li
- Key Laboratory of Flexible Electronics (KLOFE)
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing Tech University (Nanjing Tech)
- Nanjing 211816
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31
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Zuo P, Zhang W, Hua J, Ma Y, Du C, Cheng X, Gao Y, Yin G. A Novel One-dimensional Reduced Graphene Oxide/Sulfur Nanoscroll Material and its Application in Lithium Sulfur Batteries. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.11.179] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Atif R, Inam F. Reasons and remedies for the agglomeration of multilayered graphene and carbon nanotubes in polymers. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2016; 7:1174-1196. [PMID: 27826492 PMCID: PMC5082316 DOI: 10.3762/bjnano.7.109] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Accepted: 07/27/2016] [Indexed: 05/29/2023]
Abstract
One of the main issues in the production of polymer nanocomposites is the dispersion state of filler as multilayered graphene (MLG) and carbon nanotubes (CNTs) tend to agglomerate due to van der Waals forces. The agglomeration can be avoided by using organic solvents, selecting suitable dispersion and production methods, and functionalizing the fillers. Another proposed method is the use of hybrid fillers as synergistic effects can cause an improvement in the dispersion state of the fillers. In this review article, various aspects of each process that can help avoid filler agglomeration and improve dispersion state are discussed in detail. This review article would be helpful for both current and prospective researchers in the field of MLG- and CNT-based polymer nanocomposites to achieve maximum enhancement in mechanical, thermal, and electrical properties of produced polymer nanocomposites.
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Affiliation(s)
- Rasheed Atif
- Northumbria University, Faculty of Engineering and Environment, Department of Mechanical and Construction Engineering, Newcastle upon Tyne NE1 8ST, United Kingdom
| | - Fawad Inam
- Northumbria University, Faculty of Engineering and Environment, Department of Mechanical and Construction Engineering, Newcastle upon Tyne NE1 8ST, United Kingdom
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33
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Qiu B, Deng Y, Du M, Xing M, Zhang J. Ultradispersed Cobalt Ferrite Nanoparticles Assembled in Graphene Aerogel for Continuous Photo-Fenton Reaction and Enhanced Lithium Storage Performance. Sci Rep 2016; 6:29099. [PMID: 27373343 PMCID: PMC4931445 DOI: 10.1038/srep29099] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Accepted: 06/14/2016] [Indexed: 11/13/2022] Open
Abstract
The Photo-Fenton reaction is an advanced technology to eliminate organic pollutants in environmental chemistry. Moreover, the conversion rate of Fe3+/Fe2+ and utilization rate of H2O2 are significant factors in Photo-Fenton reaction. In this work, we reported three dimensional (3D) hierarchical cobalt ferrite/graphene aerogels (CoFe2O4/GAs) composites by the in situ growing CoFe2O4 crystal seeds on the graphene oxide (GO) followed by the hydrothermal process. The resulting CoFe2O4/GAs composites demonstrated 3D hierarchical pore structure with mesopores (14~18 nm), macropores (50~125 nm), and a remarkable surface area (177.8 m2 g−1). These properties endowed this hybrid with the high and recyclable Photo-Fenton activity for methyl orange pollutant degradation. More importantly, the CoFe2O4/GAs composites can keep high Photo-Fenton activity in a wide pH. Besides, the CoFe2O4/GAs composites also exhibited excellent cyclic performance and good rate capability. The 3D framework can not only effectively prevent the volume expansion and aggregation of CoFe2O4 nanoparticles during the charge/discharge processes for Lithium-ion batteries (LIBs), but also shorten lithium ions and electron diffusion length in 3D pathways. These results indicated a broaden application prospect of 3D-graphene based hybrids in wastewater treatment and energy storage.
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Affiliation(s)
- Bocheng Qiu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P.R. China
| | - Yuanxin Deng
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P.R. China
| | - Mengmeng Du
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P.R. China
| | - Mingyang Xing
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P.R. China
| | - Jinlong Zhang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P.R. China
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34
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35
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Amadei CA, Stein IY, Silverberg GJ, Wardle BL, Vecitis CD. Fabrication and morphology tuning of graphene oxide nanoscrolls. NANOSCALE 2016; 8:6783-6791. [PMID: 26956067 DOI: 10.1039/c5nr07983g] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Here we report the synthesis of graphene oxide nanoscrolls (GONS) with tunable dimensions via low and high frequency ultrasound solution processing techniques. GONS can be visualized as a graphene oxide (GO) sheet rolled into a spiral-wound structure and represent an alternative to traditional carbon nano-morphologies. The scrolling process is initiated by the ultrasound treatment which provides the scrolling activation energy for the formation of GONS. The GO and GONS dimensions are observed to be a function of ultrasound frequency, power density, and irradiation time. Ultrasonication increases GO and GONS C-C bonding likely due to in situ thermal reduction at the cavitating bubble-water interface. The GO area and GONS length are governed by two mechanisms; rapid oxygen defect site cleavage and slow cavitation mediated scission. Structural characterization indicates that GONS with tube and cone geometries can be formed with both narrow and wide dimensions in an industrial-scale time window. This work paves the way for GONS implementation for a variety of applications such as adsorptive and capacitive processes.
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Affiliation(s)
- Carlo A Amadei
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA.
| | - Itai Y Stein
- Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, Massachusetts 02139, USA
| | - Gregory J Silverberg
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA.
| | - Brian L Wardle
- Department of Aeronautics and Astronautics, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA 02139, USA
| | - Chad D Vecitis
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA.
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36
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Zhang W, Li X, Liang J, Tang K, Zhu Y, Qian Y. One-step thermolysis synthesis of two-dimensional ultrafine Fe3O4 particles/carbon nanonetworks for high-performance lithium-ion batteries. NANOSCALE 2016; 8:4733-4741. [PMID: 26859122 DOI: 10.1039/c5nr06843f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
To tackle the issue of inferior cycle stability and rate capability for Fe3O4 anode materials in lithium ion batteries, ultrafine Fe3O4 nanocrystals uniformly encapsulated in two-dimensional (2D) carbon nanonetworks have been fabricated through thermolysis of a simple, low-cost iron(iii) acetylacetonate without any extra processes. Moreover, compared to the reported Fe3O4/carbon composites, the particle size of Fe3O4 is controllable and held down to ∼3 nm. Benefitting from the synergistic effects of the excellent electroconductive carbon nanonetworks and uniform distribution of ultrafine Fe3O4 particles, the prepared 2D Fe3O4/carbon nanonetwork anode exhibits high reversible capacity, excellent rate capability and superior cyclability. A high capacity of 1534 mA h g(-1) is achieved at a 1 C rate and is maintained without decay up to 500 cycles (1 C = 1 A g(-1)). Even at the high current density of 5 C and 10 C, the 2D Fe3O4/carbon nanonetworks maintain a reversible capacity of 845 and 647 mA h g(-1) after 500 discharge/charge cycles, respectively. In comparison with other reported Fe3O4-based anodes, the 2D Fe3O4/carbon nanonetwork electrode is one of the most attractive of those in energy storage applications.
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Affiliation(s)
- Wanqun Zhang
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, P. R. China.
| | - Xiaona Li
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Jianwen Liang
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Kaibin Tang
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Yongchun Zhu
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Yitai Qian
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China
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37
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Bruck AM, Cama CA, Gannett CN, Marschilok AC, Takeuchi ES, Takeuchi KJ. Nanocrystalline iron oxide based electroactive materials in lithium ion batteries: the critical role of crystallite size, morphology, and electrode heterostructure on battery relevant electrochemistry. Inorg Chem Front 2016. [DOI: 10.1039/c5qi00247h] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The whole versus the sum of its parts; contributions of nanoscale iron-containing materials to the bulk electrochemistry of composite electrodes.
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Affiliation(s)
| | | | - Cara N. Gannett
- Department of Chemistry
- State University of New York at Geneseo
- Geneseo
- USA
- Center for Inclusive Education
| | - Amy C. Marschilok
- Department of Chemistry
- Stony Brook University
- Stony Brook
- USA
- Department of Materials Science and Engineering
| | - Esther S. Takeuchi
- Department of Chemistry
- Stony Brook University
- Stony Brook
- USA
- Department of Materials Science and Engineering
| | - Kenneth J. Takeuchi
- Department of Chemistry
- Stony Brook University
- Stony Brook
- USA
- Department of Materials Science and Engineering
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38
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Atif R, Wei J, Shyha I, Inam F. Use of morphological features of carbonaceous materials for improved mechanical properties of epoxy nanocomposites. RSC Adv 2016. [DOI: 10.1039/c5ra24039e] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The mechanical properties of epoxy nanocomposites can be significantly altered by tailoring the morphological features of carbonaceous fillers.
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Affiliation(s)
- R. Atif
- Department of Mechanical and Construction Engineering
- Faculty of Engineering and Environment
- Northumbria University
- Newcastle upon Tyne
- UK
| | - J. Wei
- Department of Mechanical and Construction Engineering
- Faculty of Engineering and Environment
- Northumbria University
- Newcastle upon Tyne
- UK
| | - I. Shyha
- Department of Mechanical and Construction Engineering
- Faculty of Engineering and Environment
- Northumbria University
- Newcastle upon Tyne
- UK
| | - F. Inam
- Department of Mechanical and Construction Engineering
- Faculty of Engineering and Environment
- Northumbria University
- Newcastle upon Tyne
- UK
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39
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Kumar R, Singh RK, Savu R, Dubey PK, Kumar P, Moshkalev SA. Microwave-assisted synthesis of void-induced graphene-wrapped nickel oxide hybrids for supercapacitor applications. RSC Adv 2016. [DOI: 10.1039/c6ra00426a] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
A simple and fast microwave irradiation technique has been used to synthesize void-induced with graphene-wrapped nickel oxide (VGWN) hybrids. The VGWN hybrid material provides long term cyclic stability and excellent electrochemical performance.
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Affiliation(s)
- Rajesh Kumar
- Centre for Semiconductor Components
- State University of Campinas (UNICAMP)
- 13083-870 Campinas
- Brazil
| | - Rajesh Kumar Singh
- Department of Physics
- Indian Institute of Technology (Banaras Hindu University)
- Varanasi 221005
- India
| | - Raluca Savu
- Centre for Semiconductor Components
- State University of Campinas (UNICAMP)
- 13083-870 Campinas
- Brazil
| | - Pawan Kumar Dubey
- Nanotechnology Application Centre
- University of Allahabad
- Allahabad 211002
- India
| | - Pradip Kumar
- Centre for Materials Architecturing
- Korea Institute of Science and Technology
- Seoul 136-791
- Republic of Korea
| | - Stanislav A. Moshkalev
- Centre for Semiconductor Components
- State University of Campinas (UNICAMP)
- 13083-870 Campinas
- Brazil
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40
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Srivastava M, Singh J, Kuila T, Layek RK, Kim NH, Lee JH. Recent advances in graphene and its metal-oxide hybrid nanostructures for lithium-ion batteries. NANOSCALE 2015; 7:4820-4868. [PMID: 25695465 DOI: 10.1039/c4nr07068b] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Today, one of the major challenges is to provide green and powerful energy sources for a cleaner environment. Rechargeable lithium-ion batteries (LIBs) are promising candidates for energy storage devices, and have attracted considerable attention due to their high energy density, rapid response, and relatively low self-discharge rate. The performance of LIBs greatly depends on the electrode materials; therefore, attention has been focused on designing a variety of electrode materials. Graphene is a two-dimensional carbon nanostructure, which has a high specific surface area and high electrical conductivity. Thus, various studies have been performed to design graphene-based electrode materials by exploiting these properties. Metal-oxide nanoparticles anchored on graphene surfaces in a hybrid form have been used to increase the efficiency of electrode materials. This review highlights the recent progress in graphene and graphene-based metal-oxide hybrids for use as electrode materials in LIBs. In particular, emphasis has been placed on the synthesis methods, structural properties, and synergetic effects of metal-oxide/graphene hybrids towards producing enhanced electrochemical response. The use of hybrid materials has shown significant improvement in the performance of electrodes.
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Affiliation(s)
- Manish Srivastava
- Advanced Materials Institute of BIN Technology (BK21 plus Global), Dept. of BIN Fusion Tech., Chonbuk National University, Jeonju, Jeonbuk 561-756, Republic of Korea.
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41
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Venkateswarlu S, Yoon M. Rapid removal of cadmium ions using green-synthesized Fe3O4 nanoparticles capped with diethyl-4-(4 amino-5-mercapto-4H-1,2,4-triazol-3-yl)phenyl phosphonate. RSC Adv 2015. [DOI: 10.1039/c5ra10628a] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Water-dispersible diethyl-4-(4-amino-5-mercapto-4H-1,2,4-triazol-3-yl)phenyl phosphonate (DEAMTPP)-capped biogenic Fe3O4 magnetic nanocomposite has been synthesized using Ananas comosus peel pulp extract for rapid removal of Cd(ii) ions from water.
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Affiliation(s)
- Sada Venkateswarlu
- Department of Nanochemistry
- College of Bionano
- Gachon University
- Sungnam
- Republic of Korea
| | - Minyoung Yoon
- Department of Nanochemistry
- College of Bionano
- Gachon University
- Sungnam
- Republic of Korea
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42
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Chen L, Xiong Q, Li W, Li J, Yu X. A solvothermal transformation of α-Fe2O3 nanocrystals to Fe3O4 polyhedrons. CrystEngComm 2015. [DOI: 10.1039/c5ce01462j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The transformation process of α-Fe2O3 to cubic Fe3O4 through “dissolution–reduction–recrystallization”.
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Affiliation(s)
- Liqiao Chen
- Innovation & Application Institute
- Zhejiang Ocean University
- Zhoushan 316022, PR China
- State Key Laboratory of Optoelectronic Materials and Technologies
- School of Chemistry and Chemical Engineering
| | - Qingfeng Xiong
- State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals
- Kunming Institute of Precious Metal
- Kunming 650106, PR China
| | - Wenlin Li
- State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals
- Kunming Institute of Precious Metal
- Kunming 650106, PR China
| | - Junpeng Li
- State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals
- Kunming Institute of Precious Metal
- Kunming 650106, PR China
| | - Xuan Yu
- Innovation & Application Institute
- Zhejiang Ocean University
- Zhoushan 316022, PR China
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43
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Yang B, Zhao J, Chen J, He M, Xu S. Controllable synthesis of graphene nanoscroll-wrapped Fe3O4 nanoparticles and their lithium-ion battery performance. RSC Adv 2015. [DOI: 10.1039/c5ra08855k] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The mass ratio of Fe3O4/GO plays an important role in determining the structure and the electrochemical performance of Fe3O4@GNS.
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Affiliation(s)
- Bingjun Yang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- P. R. China
| | - Jinping Zhao
- Laboratory of Clean Energy Chemistry and Materials
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- P. R. China
| | - Jiangtao Chen
- Laboratory of Clean Energy Chemistry and Materials
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- P. R. China
| | - Mu He
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- P. R. China
| | - Shan Xu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- P. R. China
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