151
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Composition Tailoring via N and S Co‐doping and Structure Tuning by Constructing Hierarchical Pores: Metal‐Free Catalysts for High‐Performance Electrochemical Reduction of CO
2. Angew Chem Int Ed Engl 2018; 57:15476-15480. [DOI: 10.1002/anie.201809255] [Citation(s) in RCA: 121] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 09/14/2018] [Indexed: 11/07/2022]
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152
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Yang H, Wu Y, Lin Q, Fan L, Chai X, Zhang Q, Liu J, He C, Lin Z. Composition Tailoring via N and S Co‐doping and Structure Tuning by Constructing Hierarchical Pores: Metal‐Free Catalysts for High‐Performance Electrochemical Reduction of CO
2. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201809255] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Hengpan Yang
- College of Chemistry and Environmental EngineeringShenzhen University Shenzhen Guangdong 518060 China
| | - Yu Wu
- College of Chemistry and Environmental EngineeringShenzhen University Shenzhen Guangdong 518060 China
| | - Qing Lin
- College of Chemistry and Environmental EngineeringShenzhen University Shenzhen Guangdong 518060 China
| | - Liangdong Fan
- College of Chemistry and Environmental EngineeringShenzhen University Shenzhen Guangdong 518060 China
| | - Xiaoyan Chai
- College of Chemistry and Environmental EngineeringShenzhen University Shenzhen Guangdong 518060 China
| | - Qianling Zhang
- College of Chemistry and Environmental EngineeringShenzhen University Shenzhen Guangdong 518060 China
| | - Jianhong Liu
- College of Chemistry and Environmental EngineeringShenzhen University Shenzhen Guangdong 518060 China
| | - Chuanxin He
- College of Chemistry and Environmental EngineeringShenzhen University Shenzhen Guangdong 518060 China
| | - Zhiqun Lin
- School of Materials Science and EngineeringGeorgia Institute of Technology Atlanta GA 30332 USA
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153
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Methfessel CD, Volland M, Brunner K, Wibmer L, Hahn U, de la Torre G, Torres T, Hirsch A, Guldi DM. Exfoliation of Graphene by Dendritic Water‐Soluble Zinc Phthalocyanine Amphiphiles in Polar Media. Chemistry 2018; 24:18696-18704. [DOI: 10.1002/chem.201803596] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Christian D. Methfessel
- Department of Chemistry and Pharmacy and Interdisciplinary Center of Molecular Materials (ICMM)Friedrich-Alexander-Universität Erlangen-Nürnberg Nikolaus-Fiebiger-Str. 10 91058 Erlangen Germany
- Departamento de Química OrgánicaUniversidad Autónoma de Madrid 28049 Madrid Spain
| | - Michel Volland
- Department of Chemistry and Pharmacy and Interdisciplinary Center of Molecular Materials (ICMM)Friedrich-Alexander-Universität Erlangen-Nürnberg Egerlandstr. 3 91058 Erlangen Germany
| | - Kristin Brunner
- Department of Chemistry and Pharmacy and Interdisciplinary Center of Molecular Materials (ICMM)Friedrich-Alexander-Universität Erlangen-Nürnberg Egerlandstr. 3 91058 Erlangen Germany
| | - Leonie Wibmer
- Department of Chemistry and Pharmacy and Interdisciplinary Center of Molecular Materials (ICMM)Friedrich-Alexander-Universität Erlangen-Nürnberg Egerlandstr. 3 91058 Erlangen Germany
| | - Uwe Hahn
- Laboratoire de Chimie des Matériaux MoléculairesUniversité de Strasbourg et CNRS (UMR 7042), Ecole Européenne de Chimie, Polymères et Matériaux 25 rue Bequerel 67087 Strasbourg Cedex 2 France
- Departamento de Química OrgánicaUniversidad Autónoma de Madrid 28049 Madrid Spain
| | - Gema de la Torre
- Departamento de Química OrgánicaUniversidad Autónoma de Madrid 28049 Madrid Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem)Universidad Autónoma de Madrid 28049 Madrid Spain
| | - Tomás Torres
- Departamento de Química OrgánicaUniversidad Autónoma de Madrid 28049 Madrid Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem)Universidad Autónoma de Madrid 28049 Madrid Spain
- IMDEA-Nanociencia 28049 Madrid Spain
| | - Andreas Hirsch
- Department of Chemistry and Pharmacy and Interdisciplinary Center of Molecular Materials (ICMM)Friedrich-Alexander-Universität Erlangen-Nürnberg Nikolaus-Fiebiger-Str. 10 91058 Erlangen Germany
| | - Dirk M. Guldi
- Department of Chemistry and Pharmacy and Interdisciplinary Center of Molecular Materials (ICMM)Friedrich-Alexander-Universität Erlangen-Nürnberg Egerlandstr. 3 91058 Erlangen Germany
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154
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Chen Y, Rui K, Zhu J, Dou SX, Sun W. Recent Progress on Nickel-Based Oxide/(Oxy)Hydroxide Electrocatalysts for the Oxygen Evolution Reaction. Chemistry 2018; 25:703-713. [PMID: 30024645 DOI: 10.1002/chem.201802068] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 07/19/2018] [Indexed: 11/09/2022]
Abstract
Developing clean and sustainable energies as alternatives to fossil fuels is in strong demand within modern society. The oxygen evolution reaction (OER) is the efficiency-limiting process in plenty of key renewable energy systems, such as electrochemical water splitting and rechargeable metal-air batteries. In this regard, ongoing efforts have been devoted to seeking high-performance electrocatalysts for enhanced energy conversion efficiency. Apart from traditional precious-metal-based catalysts, nickel-based compounds are the most promising earth-abundant OER catalysts, attracting ever-increasing interest due to high activity and stability. In this review, the recent progress on nickel-based oxide and (oxy)hydroxide composites for water oxidation catalysis in terms of materials design/synthesis and electrochemical performance is summarized. Some underlying mechanisms to profoundly understand the catalytic active sites are also highlighted. In addition, the future research trends and perspectives on the development of Ni-based OER electrocatalysts are discussed.
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Affiliation(s)
- Yaping Chen
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Kun Rui
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong, Wollongong, NSW, 2522, Australia.,Key Laboratory of Flexible Electronics (KLOFE) &, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for, Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Jixin Zhu
- Key Laboratory of Flexible Electronics (KLOFE) &, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for, Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Shi Xue Dou
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Wenping Sun
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong, Wollongong, NSW, 2522, Australia
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155
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ZIF-8 nanocrystals derived N-doped carbon decorated graphene sheets for symmetric supercapacitors. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.09.091] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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156
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Filimonenkov IS, Urvanov SA, Zhukova EA, Karaeva AR, Skryleva EA, Mordkovich VZ, Tsirlina GA. Carbon nanotube cloth for electrochemical charge storage in aqueous media. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.09.004] [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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157
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Ozhukil Kollath V, Derakhshandeh M, Mayer FD, Mudigonda T, Islam MN, Trifkovic M, Karan K. Fluorescent polycatecholamine nanostructures as a versatile probe for multiphase systems. RSC Adv 2018; 8:31967-31971. [PMID: 35547475 PMCID: PMC9085718 DOI: 10.1039/c8ra05372c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 08/17/2018] [Indexed: 11/21/2022] Open
Abstract
Shape and size controlled nanostructures are critical for nanotechnology and have versatile applications in understanding interfacial phenomena of various multi-phase systems. Facile synthesis of fluorescent nanostructures remains a challenge from conventional precursors. In this study, bio-inspired catecholamines, dopamine (DA), epinephrine (EP) and levodopa (LDA), were used as precursors and fluorescent nanostructures were synthesized via a simple one pot method in a water-alcohol mixture under alkaline conditions. DA and EP formed fluorescent spheres and petal shaped structures respectively over a broad spectrum excitation wavelength, whereas LDA did not form any particular structure. However, the polyepinephrine (PEP) micropetals were formed by weaker interactions as compared to covalently linked polydopamine (PDA) nanospheres, as revealed by NMR studies. Application of these fluorescent structures was illustrated by their adsorption behavior at the oil/water interface using laser scanning confocal microscopy. Interestingly, PDA nanospheres showed complete coverage of the oil/water interface despite its hydrophilic nature, as compared to hydrophobic PEP micropetals which showed a transient coverage of the oil/water interface but mainly self-aggregated in the water phase. The reported unique fluorescent organic structures will play a key role in understanding various multi-phase systems used in aerospace, biomedical, electronics and energy applications.
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Affiliation(s)
- Vinayaraj Ozhukil Kollath
- Department of Chemical and Petroleum Engineering, The University of Calgary 2500 University Drive N.W. Calgary Alberta T2N 1N4 Canada
| | - Maziar Derakhshandeh
- Department of Chemical and Petroleum Engineering, The University of Calgary 2500 University Drive N.W. Calgary Alberta T2N 1N4 Canada
| | - Francis D Mayer
- Department of Chemical and Petroleum Engineering, The University of Calgary 2500 University Drive N.W. Calgary Alberta T2N 1N4 Canada
| | - Thanmayee Mudigonda
- Department of Chemical and Petroleum Engineering, The University of Calgary 2500 University Drive N.W. Calgary Alberta T2N 1N4 Canada
| | - Muhammad Naoshad Islam
- Department of Chemical and Petroleum Engineering, The University of Calgary 2500 University Drive N.W. Calgary Alberta T2N 1N4 Canada
| | - Milana Trifkovic
- Department of Chemical and Petroleum Engineering, The University of Calgary 2500 University Drive N.W. Calgary Alberta T2N 1N4 Canada
| | - Kunal Karan
- Department of Chemical and Petroleum Engineering, The University of Calgary 2500 University Drive N.W. Calgary Alberta T2N 1N4 Canada
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158
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Lokhande A, Patil A, Shelke A, Babar P, Gang M, Lokhande V, Dhawale DS, Lokhande C, Kim JH. Binder-free novel Cu4SnS4 electrode for high-performance supercapacitors. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.07.170] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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159
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Lee KT, Park DH, Baac HW, Han S. Graphene- and Carbon-Nanotube-Based Transparent Electrodes for Semitransparent Solar Cells. MATERIALS 2018; 11:ma11091503. [PMID: 30135379 PMCID: PMC6165141 DOI: 10.3390/ma11091503] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 08/16/2018] [Accepted: 08/20/2018] [Indexed: 12/17/2022]
Abstract
A substantial amount of attention has been paid to the development of transparent electrodes based on graphene and carbon nanotubes (CNTs), owing to their exceptional characteristics, such as mechanical and chemical stability, high carrier mobility, high optical transmittance, and high conductivity. This review highlights the latest works on semitransparent solar cells (SSCs) that exploit graphene- and CNT-based electrodes. Their prominent optoelectronic properties and various fabrication methods, which rely on laminated graphene/CNT, doped graphene/CNT, a hybrid graphene/metal grid, and a solution-processed graphene mesh, with applications in SSCs are described in detail. The current difficulties and prospects for future research are also discussed.
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Affiliation(s)
- Kyu-Tae Lee
- Department of Physics, Inha University, Incheon 22212, Korea.
| | - Dong Hyuk Park
- Department of Chemical Engineering, Inha University, Incheon 22212, Korea.
| | - Hyoung Won Baac
- Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 16419, Korea.
| | - Seungyong Han
- Department of Mechanical Engineering, Ajou University, San 5, Woncheon-Dong, Yeongtong-Gu, Suwon 16499, Korea.
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160
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Biomass derived nitrogen-doped hierarchical porous carbon sheets for supercapacitors with high performance. J Colloid Interface Sci 2018; 523:133-143. [DOI: 10.1016/j.jcis.2018.03.009] [Citation(s) in RCA: 118] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 02/28/2018] [Accepted: 03/03/2018] [Indexed: 11/19/2022]
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161
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de la Torre B, Švec M, Hapala P, Redondo J, Krejčí O, Lo R, Manna D, Sarmah A, Nachtigallová D, Tuček J, Błoński P, Otyepka M, Zbořil R, Hobza P, Jelínek P. Non-covalent control of spin-state in metal-organic complex by positioning on N-doped graphene. Nat Commun 2018; 9:2831. [PMID: 30026582 PMCID: PMC6053383 DOI: 10.1038/s41467-018-05163-y] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 06/08/2018] [Indexed: 11/09/2022] Open
Abstract
Nitrogen doping of graphene significantly affects its chemical properties, which is particularly important in molecular sensing and electrocatalysis applications. However, detailed insight into interaction between N-dopant and molecules at the atomic scale is currently lacking. Here we demonstrate control over the spin state of a single iron(II) phthalocyanine molecule by its positioning on N-doped graphene. The spin transition was driven by weak intermixing between orbitals with z-component of N-dopant (pz of N-dopant) and molecule (dxz, dyz, dz2) with subsequent reordering of the Fe d-orbitals. The transition was accompanied by an electron density redistribution within the molecule, sensed by atomic force microscopy with CO-functionalized tip. This demonstrates the unique capability of the high-resolution imaging technique to discriminate between different spin states of single molecules. Moreover, we present a method for triggering spin state transitions and tuning the electronic properties of molecules through weak non-covalent interaction with suitably functionalized graphene.
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Affiliation(s)
- Bruno de la Torre
- Institute of Physics of the Czech Academy of Sciences, Cukrovarnická 10, 16200, Prague 6, Czech Republic
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacký University, Šlechtitelů 27, 78371, Olomouc, Czech Republic
| | - Martin Švec
- Institute of Physics of the Czech Academy of Sciences, Cukrovarnická 10, 16200, Prague 6, Czech Republic
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacký University, Šlechtitelů 27, 78371, Olomouc, Czech Republic
| | - Prokop Hapala
- Institute of Physics of the Czech Academy of Sciences, Cukrovarnická 10, 16200, Prague 6, Czech Republic
| | - Jesus Redondo
- Institute of Physics of the Czech Academy of Sciences, Cukrovarnická 10, 16200, Prague 6, Czech Republic
| | - Ondřej Krejčí
- Institute of Physics of the Czech Academy of Sciences, Cukrovarnická 10, 16200, Prague 6, Czech Republic
| | - Rabindranath Lo
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, 16610, Prague 6, Czech Republic
| | - Debashree Manna
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacký University, Šlechtitelů 27, 78371, Olomouc, Czech Republic
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, 16610, Prague 6, Czech Republic
| | - Amrit Sarmah
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacký University, Šlechtitelů 27, 78371, Olomouc, Czech Republic
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, 16610, Prague 6, Czech Republic
| | - Dana Nachtigallová
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacký University, Šlechtitelů 27, 78371, Olomouc, Czech Republic
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, 16610, Prague 6, Czech Republic
| | - Jiří Tuček
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacký University, Šlechtitelů 27, 78371, Olomouc, Czech Republic
| | - Piotr Błoński
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacký University, Šlechtitelů 27, 78371, Olomouc, Czech Republic
| | - Michal Otyepka
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacký University, Šlechtitelů 27, 78371, Olomouc, Czech Republic
| | - Radek Zbořil
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacký University, Šlechtitelů 27, 78371, Olomouc, Czech Republic.
| | - Pavel Hobza
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacký University, Šlechtitelů 27, 78371, Olomouc, Czech Republic.
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, 16610, Prague 6, Czech Republic.
| | - Pavel Jelínek
- Institute of Physics of the Czech Academy of Sciences, Cukrovarnická 10, 16200, Prague 6, Czech Republic.
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacký University, Šlechtitelů 27, 78371, Olomouc, Czech Republic.
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162
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A facile N doping strategy to prepare mass-produced pyrrolic N-enriched carbon fibers with enhanced lithium storage properties. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.05.017] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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163
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Tan B, Luo H, Xie Z. Formation of N‐rich Hierarchically Porous Carbon via Direct Growth ZIF‐8 on C
3
N
4
Nanosheet with Enhancing Electrochemical Performance. ChemistrySelect 2018. [DOI: 10.1002/slct.201800860] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Bin Tan
- State Key Laboratory of Photocatalysis on Energy and EnvironmentCollege of ChemistryFuzhou University Fuzhou 350116 P. R. China
| | - Huan Luo
- State Key Laboratory of Photocatalysis on Energy and EnvironmentCollege of ChemistryFuzhou University Fuzhou 350116 P. R. China
| | - Zailai Xie
- State Key Laboratory of Photocatalysis on Energy and EnvironmentCollege of ChemistryFuzhou University Fuzhou 350116 P. R. China
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164
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Zhai S, Wang C, Karahan HE, Wang Y, Chen X, Sui X, Huang Q, Liao X, Wang X, Chen Y. Nano-RuO 2 -Decorated Holey Graphene Composite Fibers for Micro-Supercapacitors with Ultrahigh Energy Density. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1800582. [PMID: 29882370 DOI: 10.1002/smll.201800582] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 04/11/2018] [Indexed: 05/03/2023]
Abstract
Compactness and versatility of fiber-based micro-supercapacitors (FMSCs) make them promising for emerging wearable electronic devices as energy storage solutions. But, increasing the energy storage capacity of microscale fiber electrodes, while retaining their high power density, remains a significant challenge. Here, this issue is addressed by incorporating ultrahigh mass loading of ruthenium oxide (RuO2 ) nanoparticles (up to 42.5 wt%) uniformly on nanocarbon-based microfibers composed largely of holey reduced graphene oxide (HrGO) with a lower amount of single-walled carbon nanotubes as nanospacers. This facile approach involes (1) space-confined hydrothermal assembly of highly porous but 3D interconnected carbon structure, (2) impregnating wet carbon structures with aqueous Ru3+ ions, and (3) anchoring RuO2 nanoparticles on HrGO surfaces. Solid-state FMSCs assembled using those fibers demonstrate a specific volumetric capacitance of 199 F cm-3 at 2 mV s-1 . Fabricated FMSCs also deliver an ultrahigh energy density of 27.3 mWh cm-3 , the highest among those reported for FMSCs to date. Furthermore, integrating 20 pieces of FMSCs with two commercial flexible solar cells as a self-powering energy system, a light-emitting diode panel can be lit up stably. The current work highlights the excellent potential of nano-RuO2 -decorated HrGO composite fibers for constructing micro-supercapacitors with high energy density for wearable electronic devices.
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Affiliation(s)
- Shengli Zhai
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, New South Wales, 2006, Australia
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
| | - Chaojun Wang
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, New South Wales, 2006, Australia
| | - Huseyin Enis Karahan
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
| | - Yanqing Wang
- Faculty of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0032, Japan
| | - Xuncai Chen
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, New South Wales, 2006, Australia
| | - Xiao Sui
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, New South Wales, 2006, Australia
| | - Qianwei Huang
- School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, New South Wales, 2006, Australia
| | - Xiaozhou Liao
- School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, New South Wales, 2006, Australia
| | - Xin Wang
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
| | - Yuan Chen
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, New South Wales, 2006, Australia
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165
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Effect of aqueous electrolytes on the electrochemical behaviors of ordered mesoporous carbon composites after KOH activation as supercapacitors electrodes. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.04.025] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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166
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Li SC, Hu BC, Ding YW, Liang HW, Li C, Yu ZY, Wu ZY, Chen WS, Yu SH. Wood-Derived Ultrathin Carbon Nanofiber Aerogels. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802753] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Si-Cheng Li
- Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale; Collaborative Innovation Center of Suzhou Nano Science and Technology; Department of Chemistry; CAS Center for Excellence in Nanoscience; Hefei Science Center of CAS; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
| | - Bi-Cheng Hu
- Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale; Collaborative Innovation Center of Suzhou Nano Science and Technology; Department of Chemistry; CAS Center for Excellence in Nanoscience; Hefei Science Center of CAS; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
| | - Yan-Wei Ding
- Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale; Collaborative Innovation Center of Suzhou Nano Science and Technology; Department of Chemistry; CAS Center for Excellence in Nanoscience; Hefei Science Center of CAS; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
| | - Hai-Wei Liang
- Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale; Collaborative Innovation Center of Suzhou Nano Science and Technology; Department of Chemistry; CAS Center for Excellence in Nanoscience; Hefei Science Center of CAS; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
| | - Chao Li
- Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale; Collaborative Innovation Center of Suzhou Nano Science and Technology; Department of Chemistry; CAS Center for Excellence in Nanoscience; Hefei Science Center of CAS; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
| | - Zi-You Yu
- Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale; Collaborative Innovation Center of Suzhou Nano Science and Technology; Department of Chemistry; CAS Center for Excellence in Nanoscience; Hefei Science Center of CAS; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
| | - Zhen-Yu Wu
- Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale; Collaborative Innovation Center of Suzhou Nano Science and Technology; Department of Chemistry; CAS Center for Excellence in Nanoscience; Hefei Science Center of CAS; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
| | - Wen-Shuai Chen
- Key laboratory of Bio-based Material Science and Technology, Ministry of Education; Northeast Forestry University; Harbin 150040 P. R. China
| | - Shu-Hong Yu
- Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale; Collaborative Innovation Center of Suzhou Nano Science and Technology; Department of Chemistry; CAS Center for Excellence in Nanoscience; Hefei Science Center of CAS; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
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167
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Li SC, Hu BC, Ding YW, Liang HW, Li C, Yu ZY, Wu ZY, Chen WS, Yu SH. Wood-Derived Ultrathin Carbon Nanofiber Aerogels. Angew Chem Int Ed Engl 2018; 57:7085-7090. [PMID: 29687551 DOI: 10.1002/anie.201802753] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 04/02/2018] [Indexed: 11/09/2022]
Abstract
Carbon aerogels with 3D networks of interconnected nanometer-sized particles exhibit fascinating physical properties and show great application potential. Efficient and sustainable methods are required to produce high-performance carbon aerogels on a large scale to boost their practical applications. An economical and sustainable method is now developed for the synthesis of ultrathin carbon nanofiber (CNF) aerogels from the wood-based nanofibrillated cellulose (NFC) aerogels via a catalytic pyrolysis process, which guarantees high carbon residual and well maintenance of the nanofibrous morphology during thermal decomposition of the NFC aerogels. The wood-derived CNF aerogels exhibit excellent electrical conductivity, a large surface area, and potential as a binder-free electrode material for supercapacitors. The results suggest great promise in developing new families of carbon aerogels based on the controlled pyrolysis of economical and sustainable nanostructured precursors.
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Affiliation(s)
- Si-Cheng Li
- Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Bi-Cheng Hu
- Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Yan-Wei Ding
- Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Hai-Wei Liang
- Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Chao Li
- Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Zi-You Yu
- Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Zhen-Yu Wu
- Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Wen-Shuai Chen
- Key laboratory of Bio-based Material Science and Technology, Ministry of Education, Northeast Forestry University, Harbin, 150040, P. R. China
| | - Shu-Hong Yu
- Division of Nanomaterials & Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, CAS Center for Excellence in Nanoscience, Hefei Science Center of CAS, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
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168
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Graphitized Nitrogen-Doped Ordered Mesoporous Carbon Derived from Ionic Liquid; Catalytic Performance Toward ORR. Electrocatalysis (N Y) 2018. [DOI: 10.1007/s12678-018-0472-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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169
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Lo KC, Hau KI, Chan WK. Photoconductivity enhancement and charge transport properties in ruthenium-containing block copolymer/carbon nanotube hybrids. NANOSCALE 2018; 10:6474-6486. [PMID: 29569662 DOI: 10.1039/c7nr09670d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Functional polymer/carbon nanotube (CNT) hybrid materials can serve as a good model for light harvesting systems based on CNTs. This paper presents the synthesis of block copolymer/CNT hybrids and the characterization of their photocurrent responses by both experimental and computational approaches. A series of functional diblock copolymers was synthesized by reversible addition-fragmentation chain transfer polymerizations for the dispersion and functionalization of CNTs. The block copolymers contain photosensitizing ruthenium complexes and modified pyrene-based anchoring units. The photocurrent responses of the polymer/CNT hybrids were measured by photoconductive atomic force microscopy (PCAFM), from which the experimental data were analyzed by vigorous statistical models. The difference in photocurrent response among different hybrids was correlated to the conformations of the hybrids, which were elucidated by molecular dynamics simulations, and the electronic properties of polymers. The photoresponse of the block copolymer/CNT hybrids can be enhanced by introducing an electron-accepting block between the photosensitizing block and the CNT. We have demonstrated that the application of a rigorous statistical methodology can unravel the charge transport properties of these hybrid materials and provide general guidelines for the design of molecular light harvesting systems.
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Affiliation(s)
- Kin Cheung Lo
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong.
| | - King In Hau
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong.
| | - Wai Kin Chan
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong.
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170
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Wang D, Xu L, Wang Y, Xu W. Rational synthesis of porous carbon nanocages and their potential application in high rate supercapacitors. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.03.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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171
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Yang S, Liu Y, Hao Y, Yang X, Goddard WA, Zhang XL, Cao B. Oxygen-Vacancy Abundant Ultrafine Co 3O 4/Graphene Composites for High-Rate Supercapacitor Electrodes. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1700659. [PMID: 29721414 PMCID: PMC5908357 DOI: 10.1002/advs.201700659] [Citation(s) in RCA: 145] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 11/27/2017] [Indexed: 05/20/2023]
Abstract
The metal oxides/graphene composites are one of the most promising supercapacitors (SCs) electrode materials. However, rational synthesis of such electrode materials with controllable conductivity and electrochemical activity is the topical challenge for high-performance SCs. Here, the Co3O4/graphene composite is taken as a typical example and develops a novel/universal one-step laser irradiation method that overcomes all these challenges and obtains the oxygen-vacancy abundant ultrafine Co3O4 nanoparticles/graphene (UCNG) composites with high SCs performance. First-principles calculations show that the surface oxygen vacancies can facilitate the electrochemical charge transfer by creating midgap electronic states. The specific capacitance of the UCNG electrode reaches 978.1 F g-1 (135.8 mA h g-1) at the current densities of 1 A g-1 and retains a high capacitance retention of 916.5 F g-1 (127.3 mA h g-1) even at current density up to 10 A g-1, showing remarkable rate capability (more than 93.7% capacitance retention). Additionally, 99.3% of the initial capacitance is maintained after consecutive 20 000 cycles, demonstrating enhanced cycling stability. Moreover, this proposed laser-assisted growth strategy is demonstrated to be universal for other metal oxide/graphene composites with tuned electrical conductivity and electrochemical activity.
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Affiliation(s)
- Shuhua Yang
- Materials Center for Energy and Photoelectrochemical ConversionSchool of Material Science and EngineeringUniversity of JinanJinan250022China
| | - Yuanyue Liu
- Materials and Process Simulation CenterCalifornia Institute of TechnologyPasadenaCA91125USA
- Department of Mechanical Engineering, and Texas Materials InstituteThe University of Texas at AustinAustinTX78712USA
| | - Yufeng Hao
- National Laboratory of Solid State MicrostructuresCollege of Engineering and Applied Sciencesand Collaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing210093China
| | - Xiaopeng Yang
- Materials Center for Energy and Photoelectrochemical ConversionSchool of Material Science and EngineeringUniversity of JinanJinan250022China
| | - William A. Goddard
- Materials and Process Simulation CenterCalifornia Institute of TechnologyPasadenaCA91125USA
| | - Xiao Li Zhang
- School of Materials Science and Engineeringand State Centre for International Cooperation on Designer Low‐Carbon & Environmental MaterialsZhengzhou UniversityZhengzhou450001China
| | - Bingqiang Cao
- Materials Center for Energy and Photoelectrochemical ConversionSchool of Material Science and EngineeringUniversity of JinanJinan250022China
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172
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Ran F, Tan Y, Dong W, Liu Z, Kong L, Kang L. In situ polymerization and reduction to fabricate gold nanoparticle-incorporated polyaniline as supercapacitor electrode materials. POLYM ADVAN TECHNOL 2018. [DOI: 10.1002/pat.4273] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Fen Ran
- State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals; Lanzhou University of Technology; Lanzhou 730050 P. R. China
- School of Material Science and Engineering; Lanzhou University of Technology; Lanzhou 730050 Gansu P. R. China
| | - Yongtao Tan
- School of Material Science and Engineering; Lanzhou University of Technology; Lanzhou 730050 Gansu P. R. China
| | - Wenju Dong
- School of Material Science and Engineering; Lanzhou University of Technology; Lanzhou 730050 Gansu P. R. China
| | - Zhen Liu
- Department of Physics & Engineering; Frostburg State University; Frostburg MD 21532-2303 USA
| | - Lingbin Kong
- State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals; Lanzhou University of Technology; Lanzhou 730050 P. R. China
- School of Material Science and Engineering; Lanzhou University of Technology; Lanzhou 730050 Gansu P. R. China
| | - Long Kang
- State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals; Lanzhou University of Technology; Lanzhou 730050 P. R. China
- School of Material Science and Engineering; Lanzhou University of Technology; Lanzhou 730050 Gansu P. R. China
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173
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Wang F, Wu X, Yuan X, Liu Z, Zhang Y, Fu L, Zhu Y, Zhou Q, Wu Y, Huang W. Latest advances in supercapacitors: from new electrode materials to novel device designs. Chem Soc Rev 2018; 46:6816-6854. [PMID: 28868557 DOI: 10.1039/c7cs00205j] [Citation(s) in RCA: 572] [Impact Index Per Article: 95.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Notably, many significant breakthroughs for a new generation of supercapacitors have been reported in recent years, related to theoretical understanding, material synthesis and device designs. Herein, we summarize the state-of-the-art progress toward mechanisms, new materials, and novel device designs for supercapacitors. Firstly, fundamental understanding of the mechanism is mainly focused on the relationship between the structural properties of electrode materials and their electrochemical performances based on some in situ characterization techniques and simulations. Secondly, some emerging electrode materials are discussed, including metal-organic frameworks (MOFs), covalent organic frameworks (COFs), MXenes, metal nitrides, black phosphorus, LaMnO3, and RbAg4I5/graphite. Thirdly, the device innovations for the next generation of supercapacitors are provided successively, mainly emphasizing flow supercapacitors, alternating current (AC) line-filtering supercapacitors, redox electrolyte enhanced supercapacitors, metal ion hybrid supercapacitors, micro-supercapacitors (fiber, plane and three-dimensional) and multifunctional supercapacitors including electrochromic supercapacitors, self-healing supercapacitors, piezoelectric supercapacitors, shape-memory supercapacitors, thermal self-protective supercapacitors, thermal self-charging supercapacitors, and photo self-charging supercapacitors. Finally, the future developments and key technical challenges are highlighted regarding further research in this thriving field.
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Affiliation(s)
- Faxing Wang
- School of Energy Science and Engineering, and Institute for Advanced Materials, Nanjing Tech University, Nanjing 211816, Jiangsu Province, China.
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174
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Parveen N, Ansari SA, Alamri HR, Ansari MO, Khan Z, Cho MH. Facile Synthesis of SnS 2 Nanostructures with Different Morphologies for High-Performance Supercapacitor Applications. ACS OMEGA 2018; 3:1581-1588. [PMID: 31458481 PMCID: PMC6641318 DOI: 10.1021/acsomega.7b01939] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 01/24/2018] [Indexed: 05/26/2023]
Abstract
SnS2 is an emerging candidate for an electrode material because of the considerable interlayer spaces in its crystal structures and the large surface area. SnS2 as a photocatalyst and in lithium ion batteries has been reported. On the other hand, there are only a few reports of their supercapacitor applications. In this study, sheetlike SnS2 (SL-SnS2), flowerlike SnS2 (FL-SnS2), and ellipsoid-like SnS2 (EL-SnS2) were fabricated via a facile solvothermal route using different types of solvents. The results suggested that the FL-SnS2 exhibited better capacitive performance than the SL-SnS2 and EL-SnS2, which means that the morphology has a significant effect on the electrochemical reaction. The FL-SnS2 displayed higher supercapacitor performance with a high capacity of approximately ∼431.82 F/g at a current density of 1 A/g. The remarkable electrochemical performance of the FL-SnS2 could be attributed to the large specific surface area and better average pore size. These results suggest that a suitable solvent is appropriate for the large-scale construction of SnS2 with different morphologies and also has huge potential in the practical applications of high-performance supercapacitors.
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Affiliation(s)
- Nazish Parveen
- School
of Chemical Engineering, Yeungnam University, Gyeongsan-si, Gyeongbuk 712-749, South Korea
| | - Sajid Ali Ansari
- School
of Chemical Engineering, Yeungnam University, Gyeongsan-si, Gyeongbuk 712-749, South Korea
- Department
of Energy & Materials Engineering, Dongguk
University, Seoul 100-715, Republic of Korea
| | - Hatem R. Alamri
- Physics
Department, Jamoum University College, Umm
Al-Qura University, Makkah 21955, Saudi Arabia
| | | | - Ziyauddin Khan
- School
of Energy and Chemical Engineering, Ulsan
National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
- Laboratory
of Organic Electronics, Department of Science and Technology, Linköping University, SE-601 74 Norrköping, Sweden
| | - Moo Hwan Cho
- School
of Chemical Engineering, Yeungnam University, Gyeongsan-si, Gyeongbuk 712-749, South Korea
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175
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Bihani O, Rai T, Panda D. Interaction of proteins with lemon-juice/glutathione-derived carbon nanodot: Interplay of induced-aggregation and co-solubilization. Int J Biol Macromol 2018; 112:1234-1240. [PMID: 29427683 DOI: 10.1016/j.ijbiomac.2018.01.211] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 01/25/2018] [Accepted: 01/31/2018] [Indexed: 12/22/2022]
Abstract
The accumulation of protein aggregates (tau) causes Alzheimer's disease (AD), Parkinson's disease (PD), and a range of neurodegenerative diseases. To develop a less toxic and bio-derived nanomaterials for inhibition of protein-aggregation, carbon nanodot has been used for this study. Nanodot have generated huge interest in biomedical applications owing to unique emission property and good biocompatibility. A carbon nanodot is synthesized from a natural resource-lemon juice and glutathione. The synthesized nanodot possesses excitation-independent emission and nano-sheet like with high graphitic content. Interaction of protein with CND is monitored by intrinsic fluorescence (trp residues), FT-IR and circular dichroism spectroscopy. Whereas it solubilizes the protein aggregates at its higher concentration. Both induced-aggregation and co-solubilization are sequence-independent and dictated by nanodot. The study may shed light on the role of glutathione in glutathione-dependent glyoxalase system toward defence against glycation product.
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Affiliation(s)
- Omkar Bihani
- Rajiv Gandhi Institute of Petroleum Technology, (An Institute of National Importance), Jais, Uttar Pradesh, India
| | - Tripti Rai
- Rajiv Gandhi Institute of Petroleum Technology, (An Institute of National Importance), Jais, Uttar Pradesh, India
| | - Debashis Panda
- Rajiv Gandhi Institute of Petroleum Technology, (An Institute of National Importance), Jais, Uttar Pradesh, India.
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176
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Tao L, Huang Y, Yang X, Zheng Y, Liu C, Di M, Zheng Z. Flexible anode materials for lithium-ion batteries derived from waste biomass-based carbon nanofibers: I. Effect of carbonization temperature. RSC Adv 2018; 8:7102-7109. [PMID: 35540347 PMCID: PMC9078397 DOI: 10.1039/c7ra13639k] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Accepted: 02/06/2018] [Indexed: 12/14/2022] Open
Abstract
Carbon nanofibers (CNFs) with excellent electrochemical performance represent a novel class of carbon nanostructures for boosting electrochemical applications, especially sustainable electrochemical energy conversion and storage applications. This work builds on an earlier study where the CNFs were prepared from a waste biomass (walnut shells) using a relatively simple procedure of liquefying the biomass, and electrospinning and carbonizing the fibrils. We further improved the mass ratio of the liquefying process and investigated the effects of the high temperature carbonization process at 1000, 1500 and 2000 °C, and comprehensively characterized the morphology, structural properties, and specific surface area of walnut shell-derived CNFs; and their electrochemical performance was also investigated as electrode materials in Li-ion batteries. Results demonstrated that the CNF anode obtained at 1000 °C exhibits a high specific capacity up to 271.7 mA h g-1 at 30 mA g-1, good rate capacity (131.3 and 102.2 mA h g-1 at 1 A g-1 and 2 A g-1, respectively), and excellent cycling performance (above 200 mA h g-1 specific capacity without any capacity decay after 200 cycles at 100 mA g-1). The present work demonstrates the great potential for converting low-cost biomass to high-value carbon materials for applications in energy storage.
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Affiliation(s)
- Lei Tao
- Yunnan Provincial International Joint Research Center for Bioenergy, Yunnan Provincial Engineering Laboratory for Highly-Efficient Utilization of Biomass, Yunnan Provincial University Key Laboratory for Biomass Chemical Refinery & Synthesis, College of Materials Science & Engineering, Southwest Forestry University Kunming 650224 China +86 13700641767 +86 18787044383
- College of Materials Science and Engineering, Northeast Forestry University Harbin 150040 China +86 13946050478
| | - Yuanbo Huang
- Yunnan Provincial International Joint Research Center for Bioenergy, Yunnan Provincial Engineering Laboratory for Highly-Efficient Utilization of Biomass, Yunnan Provincial University Key Laboratory for Biomass Chemical Refinery & Synthesis, College of Materials Science & Engineering, Southwest Forestry University Kunming 650224 China +86 13700641767 +86 18787044383
| | - Xiaoqin Yang
- Yunnan Provincial International Joint Research Center for Bioenergy, Yunnan Provincial Engineering Laboratory for Highly-Efficient Utilization of Biomass, Yunnan Provincial University Key Laboratory for Biomass Chemical Refinery & Synthesis, College of Materials Science & Engineering, Southwest Forestry University Kunming 650224 China +86 13700641767 +86 18787044383
| | - Yunwu Zheng
- Yunnan Provincial International Joint Research Center for Bioenergy, Yunnan Provincial Engineering Laboratory for Highly-Efficient Utilization of Biomass, Yunnan Provincial University Key Laboratory for Biomass Chemical Refinery & Synthesis, College of Materials Science & Engineering, Southwest Forestry University Kunming 650224 China +86 13700641767 +86 18787044383
| | - Can Liu
- Yunnan Provincial International Joint Research Center for Bioenergy, Yunnan Provincial Engineering Laboratory for Highly-Efficient Utilization of Biomass, Yunnan Provincial University Key Laboratory for Biomass Chemical Refinery & Synthesis, College of Materials Science & Engineering, Southwest Forestry University Kunming 650224 China +86 13700641767 +86 18787044383
| | - Mingwei Di
- College of Materials Science and Engineering, Northeast Forestry University Harbin 150040 China +86 13946050478
| | - Zhifeng Zheng
- Yunnan Provincial International Joint Research Center for Bioenergy, Yunnan Provincial Engineering Laboratory for Highly-Efficient Utilization of Biomass, Yunnan Provincial University Key Laboratory for Biomass Chemical Refinery & Synthesis, College of Materials Science & Engineering, Southwest Forestry University Kunming 650224 China +86 13700641767 +86 18787044383
- Fujian Engineering and Research Center of Clean and High-valued Technologies for Biomass, College of Energy, Xiamen University Xiamen 361102 China
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177
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Ge J, Wu J, Dong J, Jia J, Ye B, Jiang S, Zeng J, Bao Q. Hydrothermal Synthesis of Hybrid Rod-Like Hollow CoWO4
/Co1−x
S for High-Performance Supercapacitors. ChemElectroChem 2018. [DOI: 10.1002/celc.201701324] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jinhua Ge
- Engineering Research Center of Environment-Friendly, Functional Materials for Ministry of Education, Fujian Provincial Key Laboratory of Photoelectric Functional Materials, Institute of Materials Physical Chemistry; Huaqiao University; Xiamen 361021 China
| | - Jihuai Wu
- Engineering Research Center of Environment-Friendly, Functional Materials for Ministry of Education, Fujian Provincial Key Laboratory of Photoelectric Functional Materials, Institute of Materials Physical Chemistry; Huaqiao University; Xiamen 361021 China
| | - Jia Dong
- Engineering Research Center of Environment-Friendly, Functional Materials for Ministry of Education, Fujian Provincial Key Laboratory of Photoelectric Functional Materials, Institute of Materials Physical Chemistry; Huaqiao University; Xiamen 361021 China
| | - Jinbiao Jia
- Engineering Research Center of Environment-Friendly, Functional Materials for Ministry of Education, Fujian Provincial Key Laboratory of Photoelectric Functional Materials, Institute of Materials Physical Chemistry; Huaqiao University; Xiamen 361021 China
| | - Beirong Ye
- Engineering Research Center of Environment-Friendly, Functional Materials for Ministry of Education, Fujian Provincial Key Laboratory of Photoelectric Functional Materials, Institute of Materials Physical Chemistry; Huaqiao University; Xiamen 361021 China
| | - Si Jiang
- Engineering Research Center of Environment-Friendly, Functional Materials for Ministry of Education, Fujian Provincial Key Laboratory of Photoelectric Functional Materials, Institute of Materials Physical Chemistry; Huaqiao University; Xiamen 361021 China
| | - Jijia Zeng
- Engineering Research Center of Environment-Friendly, Functional Materials for Ministry of Education, Fujian Provincial Key Laboratory of Photoelectric Functional Materials, Institute of Materials Physical Chemistry; Huaqiao University; Xiamen 361021 China
| | - Quanlin Bao
- Engineering Research Center of Environment-Friendly, Functional Materials for Ministry of Education, Fujian Provincial Key Laboratory of Photoelectric Functional Materials, Institute of Materials Physical Chemistry; Huaqiao University; Xiamen 361021 China
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178
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Dubal DP, Chodankar NR, Kim DH, Gomez-Romero P. Towards flexible solid-state supercapacitors for smart and wearable electronics. Chem Soc Rev 2018; 47:2065-2129. [PMID: 29399689 DOI: 10.1039/c7cs00505a] [Citation(s) in RCA: 465] [Impact Index Per Article: 77.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Flexible solid-state supercapacitors (FSSCs) are frontrunners in energy storage device technology and have attracted extensive attention owing to recent significant breakthroughs in modern wearable electronics. In this study, we review the state-of-the-art advancements in FSSCs to provide new insights on mechanisms, emerging electrode materials, flexible gel electrolytes and novel cell designs. The review begins with a brief introduction on the fundamental understanding of charge storage mechanisms based on the structural properties of electrode materials. The next sections briefly summarise the latest progress in flexible electrodes (i.e., freestanding and substrate-supported, including textile, paper, metal foil/wire and polymer-based substrates) and flexible gel electrolytes (i.e., aqueous, organic, ionic liquids and redox-active gels). Subsequently, a comprehensive summary of FSSC cell designs introduces some emerging electrode materials, including MXenes, metal nitrides, metal-organic frameworks (MOFs), polyoxometalates (POMs) and black phosphorus. Some potential practical applications, such as the development of piezoelectric, photo-, shape-memory, self-healing, electrochromic and integrated sensor-supercapacitors are also discussed. The final section highlights current challenges and future perspectives on research in this thriving field.
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Affiliation(s)
- Deepak P Dubal
- School of Chemical Engineering, The University of Adelaide, Adelaide, South Australia 5005, Australia. and Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Nilesh R Chodankar
- School of Chemical Engineering, Chonnam National University, Gwangju 500-757, South Korea
| | - Do-Heyoung Kim
- School of Chemical Engineering, Chonnam National University, Gwangju 500-757, South Korea
| | - Pedro Gomez-Romero
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193 Barcelona, Spain
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179
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Yun YS. Hierarchically Macroporous Graphitic Nanowebs Exhibiting Ultra-fast and Stable Charge Storage Performance. NANOSCALE RESEARCH LETTERS 2018; 13:36. [PMID: 29396670 PMCID: PMC5796926 DOI: 10.1186/s11671-018-2456-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Accepted: 01/25/2018] [Indexed: 06/07/2023]
Abstract
The macro/microstructures of carbon-based electrode materials for supercapacitor applications play a key role in their electrochemical performance. In this study, hierarchically macroporous graphitic nanowebs (HM-GNWs) were prepared from bacterial cellulose by high-temperature heating at 2400 °C. The HM-GNWs were composed of well-developed graphitic nanobuilding blocks with a high aspect ratio, which was entangled as a nanoweb structure. The morphological and microstructural characteristics of the HM-GNWs resulted in remarkable charge storage performance. In particular, the HM-GNWs exhibited very fast charge storage behaviors at scan rates ranging from 5 to 100 V s-1, in which area capacitances ranging from ~ 8.9 to 3.8 mF cm-2 were achieved. In addition, ~ 97% capacitance retention was observed after long-term cycling for more than 1,000,000 cycles.
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Affiliation(s)
- Young Soo Yun
- Department of Chemical Engineering, Kangwon National University, Samcheok, 245-711, South Korea.
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180
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Chen J, Liu B, Gao X, Xu D. A review of the interfacial characteristics of polymer nanocomposites containing carbon nanotubes. RSC Adv 2018; 8:28048-28085. [PMID: 35542749 PMCID: PMC9083916 DOI: 10.1039/c8ra04205e] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 07/26/2018] [Indexed: 12/17/2022] Open
Abstract
This paper provides an overview of recent advances in research on the interfacial characteristics of carbon nanotube–polymer nanocomposites. The state of knowledge about the chemical functionalization of carbon nanotubes as well as the interaction at the interface between the carbon nanotube and the polymer matrix is presented. The primary focus of this paper is on identifying the fundamental relationship between nanocomposite properties and interfacial characteristics. The progress, remaining challenges, and future directions of research are discussed. The latest developments of both microscopy and scattering techniques are reviewed, and their respective strengths and limitations are briefly discussed. The main methods available for the chemical functionalization of carbon nanotubes are summarized, and particular interest is given to evaluation of their advantages and disadvantages. The critical issues related to the interaction at the interface are discussed, and the important techniques for improving the properties of carbon nanotube–polymer nanocomposites are introduced. Additionally, the mechanism responsible for the interfacial interaction at the molecular level is briefly described. Furthermore, the mechanical, electrical, and thermal properties of the nanocomposites are discussed separately, and their influencing factors are briefly introduced. Finally, the current challenges and opportunities for efficiently translating the remarkable properties of carbon nanotubes to polymer matrices are summarized in the hopes of facilitating the development of this emerging area. Potential topics of oncoming focus are highlighted, and several suggestions concerning future research needs are also presented. The state of research on the characteristics at the interface in polymer nanocomposites is reviewed. Special emphasis is placed on the recent advances in the fundamental relationship between interfacial characteristics and nanocomposite properties.![]()
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Affiliation(s)
- Junjie Chen
- Department of Energy and Power Engineering
- School of Mechanical and Power Engineering
- Henan Polytechnic University
- Jiaozuo
- China
| | - Baofang Liu
- Department of Energy and Power Engineering
- School of Mechanical and Power Engineering
- Henan Polytechnic University
- Jiaozuo
- China
| | - Xuhui Gao
- Department of Energy and Power Engineering
- School of Mechanical and Power Engineering
- Henan Polytechnic University
- Jiaozuo
- China
| | - Deguang Xu
- Department of Energy and Power Engineering
- School of Mechanical and Power Engineering
- Henan Polytechnic University
- Jiaozuo
- China
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181
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Wu H, Li X, Chen M, Wang C, Wei T, Zhang H, Fan S. A nanohybrid based on porphyrin dye functionalized graphene oxide for the application in non-enzymatic electrochemical sensor. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2017.10.122] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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182
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Zhang A, Cao S, Zhao Y, Zhang C, Chen A. Facile one-pot hydrothermal synthesis of particle-based nitrogen-doped carbon spheres and their supercapacitor performance. NEW J CHEM 2018. [DOI: 10.1039/c8nj00576a] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Particle-based nitrogen-doped carbon spheres (PNCSs) were prepared via a hydrothermal and carbonization route and PNCSs-1.2 demonstrated an enhanced supercapacitor performance.
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Affiliation(s)
- Ang Zhang
- School of Materials Science and Engineering
- Beihang University
- Beijing 100191
- China
| | - Shubo Cao
- School of Materials Science and Engineering
- Beihang University
- Beijing 100191
- China
| | - Yongbin Zhao
- Shandong Oubo New Material Co Ltd
- Dongying Part Economic Development Zone
- Shandong 257088
- China
| | - Chen Zhang
- School of Materials Science and Engineering
- Beihang University
- Beijing 100191
- China
| | - Aihua Chen
- School of Materials Science and Engineering
- Beihang University
- Beijing 100191
- China
- Beijing Advanced Innovation Centre for Biomedical Engineering
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183
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Zhang G, Xiu S, Wei Y, Zhang Q, Cai K. Design and synthesis of nanoporous carbon materials using Cd-based homochiral metal–organic frameworks as precursors for supercapacitor application. CrystEngComm 2018. [DOI: 10.1039/c8ce01027g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Design and synthesis of nanoporous carbon materials using Cd-based homochiral metal–organic frameworks as precursors for supercapacitor application.
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Affiliation(s)
- Guangju Zhang
- College of Chemistry
- Chemical Engineering
- Bohai University
- Jinzhou 121013
- China
| | - Siqi Xiu
- College of Chemistry
- Chemical Engineering
- Bohai University
- Jinzhou 121013
- China
| | - Ying Wei
- College of Chemistry
- Chemical Engineering
- Bohai University
- Jinzhou 121013
- China
| | - Qingguo Zhang
- College of Chemistry
- Chemical Engineering
- Bohai University
- Jinzhou 121013
- China
| | - Kedi Cai
- College of Chemistry
- Chemical Engineering
- Bohai University
- Jinzhou 121013
- China
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184
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Dou Q, Liu L, Yang B, Lang J, Yan X. Silica-grafted ionic liquids for revealing the respective charging behaviors of cations and anions in supercapacitors. Nat Commun 2017; 8:2188. [PMID: 29259171 PMCID: PMC5736757 DOI: 10.1038/s41467-017-02152-5] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Accepted: 11/10/2017] [Indexed: 11/08/2022] Open
Abstract
Supercapacitors based on activated carbon electrodes and ionic liquids as electrolytes are capable of storing charge through the electrosorption of ions on porous carbons and represent important energy storage devices with high power delivery/uptake. Various computational and instrumental methods have been developed to understand the ion storage behavior, however, techniques that can probe various cations and anions of ionic liquids separately remain lacking. Here, we report an approach to monitoring cations and anions independently by using silica nanoparticle-grafted ionic liquids, in which ions attaching to silica nanoparticle cannot access activated carbon pores upon charging, whereas free counter-ions can. Aided by this strategy, conventional electrochemical characterizations allow the direct measurement of the respective capacitance contributions and acting potential windows of different ions. Moreover, coupled with electrochemical quartz crystal microbalance, this method can provide unprecedented insight into the underlying electrochemistry.
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Affiliation(s)
- Qingyun Dou
- Laboratory of Clean Energy Chemistry and Materials, State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Lanzhou, 730000, China
- University of Chinese Academy of Sciences, Beijing, 100080, China
| | - Lingyang Liu
- Laboratory of Clean Energy Chemistry and Materials, State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Lanzhou, 730000, China
- University of Chinese Academy of Sciences, Beijing, 100080, China
| | - Bingjun Yang
- Laboratory of Clean Energy Chemistry and Materials, State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Lanzhou, 730000, China
| | - Junwei Lang
- Laboratory of Clean Energy Chemistry and Materials, State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Lanzhou, 730000, China
| | - Xingbin Yan
- Laboratory of Clean Energy Chemistry and Materials, State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Lanzhou, 730000, China.
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185
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Nema A, Pareek R, Rai T, Panda D. The Role of Glutathione and Ethanol in Dictating the Emission Dynamics of Natural Resources-Derived Highly Luminescent Carbon Nanodots. ChemistrySelect 2017. [DOI: 10.1002/slct.201702455] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Akansh Nema
- Rajiv Gandhi Institute of Petroleum Technology; Institute of National Importance; Jais- 229304, Uttar Pradesh INDIA
| | - Rakshit Pareek
- Rajiv Gandhi Institute of Petroleum Technology; Institute of National Importance; Jais- 229304, Uttar Pradesh INDIA
| | - Tripti Rai
- Rajiv Gandhi Institute of Petroleum Technology; Institute of National Importance; Jais- 229304, Uttar Pradesh INDIA
| | - Debashis Panda
- Rajiv Gandhi Institute of Petroleum Technology; Institute of National Importance; Jais- 229304, Uttar Pradesh INDIA
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186
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Chronopoulos DD, Bakandritsos A, Pykal M, Zbořil R, Otyepka M. Chemistry, properties, and applications of fluorographene. APPLIED MATERIALS TODAY 2017; 9:60-70. [PMID: 29238741 PMCID: PMC5721099 DOI: 10.1016/j.apmt.2017.05.004] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 05/10/2017] [Accepted: 05/11/2017] [Indexed: 05/23/2023]
Abstract
Fluorographene, formally a two-dimensional stoichiometric graphene derivative, attracted remarkable attention of the scientific community due to its extraordinary physical and chemical properties. We overview the strategies for the preparation of fluorinated graphene derivatives, based on top-down and bottom-up approaches. The physical and chemical properties of fluorographene, which is considered as one of the thinnest insulators with a wide electronic band gap, are presented. Special attention is paid to the rapidly developing chemistry of fluorographene, which was advanced in the last few years. The unusually high reactivity of fluorographene, which can be chemically considered perfluorinated hydrocarbon, enables facile and scalable access to a wide portfolio of graphene derivatives, such as graphene acid, cyanographene and allyl-graphene. Finally, we summarize the so far reported applications of fluorographene and fluorinated graphenes, spanning from sensing and bioimaging to separation, electronics and energy technologies.
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187
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Qian M, Chen N, Liu M, Cheng L, Li J, Wang M. Growing ordered arrays of vertically aligned copolymer nanowires for supercapacitors with high stability. J Solid State Electrochem 2017. [DOI: 10.1007/s10008-017-3637-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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188
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Ren J, Xu Q, Chen X, Li W, Guo K, Zhao Y, Wang Q, Zhang Z, Peng H, Li YG. Superaligned Carbon Nanotubes Guide Oriented Cell Growth and Promote Electrophysiological Homogeneity for Synthetic Cardiac Tissues. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1702713. [PMID: 29024059 DOI: 10.1002/adma.201702713] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 07/19/2017] [Indexed: 05/21/2023]
Abstract
Cardiac engineering of patches and tissues is a promising option to restore infarcted hearts, by seeding cardiac cells onto scaffolds and nurturing their growth in vitro. However, current patches fail to fully imitate the hierarchically aligned structure in the natural myocardium, the fast electrotonic propagation, and the subsequent synchronized contractions. Here, superaligned carbon-nanotube sheets (SA-CNTs) are explored to culture cardiomyocytes, mimicking the aligned structure and electrical-impulse transmission behavior of the natural myocardium. The SA-CNTs not only induce an elongated and aligned cell morphology of cultured cardiomyocytes, but also provide efficient extracellular signal-transmission pathways required for regular and synchronous cell contractions. Furthermore, the SA-CNTs can reduce the beat-to-beat and cell-to-cell dispersion in repolarization of cultured cells, which is essential for a normal beating rhythm, and potentially reduce the occurrence of arrhythmias. Finally, SA-CNT-based flexible one-piece electrodes demonstrate a multipoint pacing function. These combined high properties make SA-CNTs promising in applications in cardiac resynchronization therapy in patients with heart failure and following myocardial infarctions.
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Affiliation(s)
- Jing Ren
- Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
| | - Quanfu Xu
- Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
| | - Xiaomeng Chen
- Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
| | - Wei Li
- Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
| | - Kai Guo
- Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
| | - Yang Zhao
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, and Laboratory of Advanced Materials, Fudan University, Shanghai, 200438, China
| | - Qian Wang
- Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
| | - Zhitao Zhang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, and Laboratory of Advanced Materials, Fudan University, Shanghai, 200438, China
| | - Huisheng Peng
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, and Laboratory of Advanced Materials, Fudan University, Shanghai, 200438, China
| | - Yi-Gang Li
- Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
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189
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Ozawa H, Katori N, Kita T, Oka S, Haga MA. Controlling the Molecular Direction of Dinuclear Ruthenium Complexes on HOPG Surface through Noncovalent Bonding. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:11901-11910. [PMID: 28945096 DOI: 10.1021/acs.langmuir.7b02194] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We synthesized three types of binuclear Ru complexes (1-3) that contain pyrene anchors for the adsorption of 1-3 onto nanocarbon materials via noncovalent π-π interactions, in order to investigate their adsorption onto and their desorption from highly ordered pyrolytic graphite (HOPG). The adsorption saturation for 1 (6.22 pmol/cm2), 2 (2.83 pmol/cm2), and 3 (3.53 pmol/cm2) on HOPG was obtained from Langmuir isotherms. The desorption rate from HOPG electrodes decreased in the order 3 (2.4 × 10-5 s-1) > 2 (1.4 × 10-5 s-1) ≫ 1 (1.8 × 10-6 s-1). These results indicate that the number of pyrene anchors and their position of substitution in such complexes strongly affect the desorption behavior. However, neither the free energy of adsorption (ΔGads) nor the heterogeneous electron-transfer rate (kET) showed any significant differences among 1-3, albeit that the surface morphologies of the modified HOPG substrates showed domain structures that were characteristic for each Ru complex. In the case of 3, the average height changed from ∼2 to ∼4 nm upon increasing the concentration of the solution of 3 that was used for the surface modification. In contrast, the height for 1 and 2 remained constant (1.5-2 nm) upon increasing the concentration of the complexes in the corresponding solutions. While the molecular orientation of the Ru-Ru axis of 3 relative to the HOPG surface normal changed from parallel to perpendicular, the Ru-Ru axis in 1 and 2 remained parallel, which leads to an increased stability of 1 and 2.
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Affiliation(s)
- Hiroaki Ozawa
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University , 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | | | - Tomomi Kita
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University , 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Shota Oka
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University , 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Masa-Aki Haga
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University , 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
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190
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Hydrogen substituted graphdiyne as carbon-rich flexible electrode for lithium and sodium ion batteries. Nat Commun 2017; 8:1172. [PMID: 29079826 PMCID: PMC5660080 DOI: 10.1038/s41467-017-01202-2] [Citation(s) in RCA: 196] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 08/25/2017] [Indexed: 12/21/2022] Open
Abstract
Organic electrodes are potential alternatives to current inorganic electrode materials for lithium ion and sodium ion batteries powering portable and wearable electronics, in terms of their mechanical flexibility, function tunability and low cost. However, the low capacity, poor rate performance and rapid capacity degradation impede their practical application. Here, we concentrate on the molecular design for improved conductivity and capacity, and favorable bulk ion transport. Through an in situ cross-coupling reaction of triethynylbenzene on copper foil, the carbon-rich frame hydrogen substituted graphdiyne film is fabricated. The organic film can act as free-standing flexible electrode for both lithium ion and sodium ion batteries, and large reversible capacities of 1050 mAh g−1 for lithium ion batteries and 650 mAh g−1 for sodium ion batteries are achieved. The electrode also shows a superior rate and cycle performances owing to the extended π-conjugated system, and the hierarchical pore bulk with large surface area. Flexible batteries have been used to power wearable smart electronics and implantable medical devices. Here, the authors report a carbon-rich flexible hydrogen substituted graphdiyne electrode exhibiting superior electrochemical performance in lithium and sodium ion batteries.
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191
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Zhang C, Wei J, Chen L, Tang S, Deng M, Du Y. All-solid-state asymmetric supercapacitors based on Fe-doped mesoporous Co 3O 4 and three-dimensional reduced graphene oxide electrodes with high energy and power densities. NANOSCALE 2017; 9:15423-15433. [PMID: 28975952 DOI: 10.1039/c7nr05059c] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
An asymmetric supercapacitor offers opportunities to effectively utilize the full potential of the different potential windows of the two electrodes for a higher operating voltage, resulting in an enhanced specific capacitance and significantly improved energy without sacrificing the power delivery and cycle life. To achieve high energy and power densities, we have synthesized an all-solid-state asymmetric supercapacitor with a wider voltage range using Fe-doped Co3O4 and three-dimensional reduced graphene oxide (3DrGO) as the positive and negative electrodes, respectively. In contrast to undoped Co3O4, the increased density of states and modified charge spatial separation endow the Fe-doped Co3O4 electrode with greatly improved electrochemical capacitive performance, including high specific capacitance (1997 F g-1 and 1757 F g-1 at current densities of 1 and 20 A g-1, respectively), excellent rate capability, and superior cycling stability. Remarkably, the optimized all-solid-state asymmetric supercapacitor can be cycled reversibly in a wide range of 0-1.8 V, thus delivering a high energy density (270.3 W h kg-1), high power density (9.0 kW kg-1 at 224.2 W h kg-1), and excellent cycling stability (91.8% capacitance retention after 10 000 charge-discharge cycles at a constant current density of 10 A g-1). The superior capacitive performance suggests that such an all-solid-state asymmetric supercapacitor shows great potential for developing energy storage systems with high levels of energy and power delivery.
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Affiliation(s)
- Cheng Zhang
- Jiangsu Key Laboratory for Nanotechnology, Collaborative Innovation Center of Advanced Microstructures, Nanjing National Laboratory of Microstructures and Department of Physics, Nanjing University, Nanjing, 210093, P. R. China.
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192
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Tan Y, Liu Y, Zhang Y, Xu C, Kong L, Kang L, Ran F. Dulse-derived porous carbon-polyaniline nanocomposite electrode for high-performance supercapacitors. J Appl Polym Sci 2017. [DOI: 10.1002/app.45776] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Yongtao Tan
- State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals; Lanzhou University of Technology; Lanzhou 730050 People's Republic of China
| | - Yuansen Liu
- Engineering Research Center of Marine Biological Resource Comprehensive Utilization, Third Institute of Oceanography, State Oceanic Administration; Xiamen 361005 People's Republic of China
| | - Yafei Zhang
- State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals; Lanzhou University of Technology; Lanzhou 730050 People's Republic of China
| | - Changan Xu
- Engineering Research Center of Marine Biological Resource Comprehensive Utilization, Third Institute of Oceanography, State Oceanic Administration; Xiamen 361005 People's Republic of China
| | - Lingbin Kong
- State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals; Lanzhou University of Technology; Lanzhou 730050 People's Republic of China
| | - Long Kang
- State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals; Lanzhou University of Technology; Lanzhou 730050 People's Republic of China
| | - Fen Ran
- State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals; Lanzhou University of Technology; Lanzhou 730050 People's Republic of China
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193
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Wan L, Du C, Yang S. Synthesis of graphene oxide/polybenzoxazine-based nitrogen-containing porous carbon nanocomposite for enhanced supercapacitor properties. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.08.086] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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194
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Wang D, Liu S, Jiao L, Fang G. A smart bottom-up strategy for the fabrication of porous carbon nanosheets containing rGO for high-rate supercapacitors in organic electrolyte. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.08.181] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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195
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Ziegler C, Wolf A, Liu W, Herrmann AK, Gaponik N, Eychmüller A. Moderne Anorganische Aerogele. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611552] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Christoph Ziegler
- Physical Chemistry; Technische Universität Dresden; Bergstraße 66b 01062 Dresden Deutschland
- LUMINOUS! Center of Excellence for Semiconductor Lighting and Displays School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 639798 Singapur
| | - André Wolf
- Physical Chemistry; Technische Universität Dresden; Bergstraße 66b 01062 Dresden Deutschland
| | - Wei Liu
- Physical Chemistry; Technische Universität Dresden; Bergstraße 66b 01062 Dresden Deutschland
| | - Anne-Kristin Herrmann
- Physical Chemistry; Technische Universität Dresden; Bergstraße 66b 01062 Dresden Deutschland
| | - Nikolai Gaponik
- Physical Chemistry; Technische Universität Dresden; Bergstraße 66b 01062 Dresden Deutschland
| | - Alexander Eychmüller
- Physical Chemistry; Technische Universität Dresden; Bergstraße 66b 01062 Dresden Deutschland
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196
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Ziegler C, Wolf A, Liu W, Herrmann AK, Gaponik N, Eychmüller A. Modern Inorganic Aerogels. Angew Chem Int Ed Engl 2017; 56:13200-13221. [DOI: 10.1002/anie.201611552] [Citation(s) in RCA: 221] [Impact Index Per Article: 31.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Indexed: 12/17/2022]
Affiliation(s)
- Christoph Ziegler
- Physical Chemistry; Technische Universität Dresden; Bergstrasse 66b 01062 Dresden Germany
- Present address: LUMINOUS! Center of Excellence for Semiconductor Lighting and Displays School of Physical and Mathematical Sciences; Nanyang Technological University; Singapore 639798 Singapore
| | - André Wolf
- Physical Chemistry; Technische Universität Dresden; Bergstrasse 66b 01062 Dresden Germany
| | - Wei Liu
- Physical Chemistry; Technische Universität Dresden; Bergstrasse 66b 01062 Dresden Germany
| | - Anne-Kristin Herrmann
- Physical Chemistry; Technische Universität Dresden; Bergstrasse 66b 01062 Dresden Germany
| | - Nikolai Gaponik
- Physical Chemistry; Technische Universität Dresden; Bergstrasse 66b 01062 Dresden Germany
| | - Alexander Eychmüller
- Physical Chemistry; Technische Universität Dresden; Bergstrasse 66b 01062 Dresden Germany
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197
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Fan H, Dong Z, Zhao J. Exposed N and S Active Sites: An Indicator for Oxygen Reduction on Metal-Free Yam-Derived Porous Carbons. ChemElectroChem 2017. [DOI: 10.1002/celc.201700839] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hao Fan
- College of Chemistry & Materials Science; Northwest University; Xi'an 710069 P.R. China
- School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210023 P.R. China
| | - Zhen Dong
- College of Chemistry & Materials Science; Northwest University; Xi'an 710069 P.R. China
| | - Jianshe Zhao
- College of Chemistry & Materials Science; Northwest University; Xi'an 710069 P.R. China
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198
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Wang S, Jiang F, Xu X, Kuang Y, Fu K, Hitz E, Hu L. Super-Strong, Super-Stiff Macrofibers with Aligned, Long Bacterial Cellulose Nanofibers. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29. [PMID: 28731208 DOI: 10.1002/adma.201702498] [Citation(s) in RCA: 106] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 06/11/2017] [Indexed: 05/12/2023]
Abstract
With their impressive properties such as remarkable unit tensile strength, modulus, and resistance to heat, flame, and chemical agents that normally degrade conventional macrofibers, high-performance macrofibers are now widely used in various fields including aerospace, biomedical, civil engineering, construction, protective apparel, geotextile, and electronic areas. Those macrofibers with a diameter of tens to hundreds of micrometers are typically derived from polymers, gel spun fibers, modified carbon fibers, carbon-nanotube fibers, ceramic fibers, and synthetic vitreous fibers. Cellulose nanofibers are promising building blocks for future high-performance biomaterials and textiles due to their high ultimate strength and stiffness resulting from a highly ordered orientation along the fiber axis. For the first time, an effective fabrication method is successfully applied for high-performance macrofibers involving a wet-drawing and wet-twisting process of ultralong bacterial cellulose nanofibers. The resulting bacterial cellulose macrofibers yield record high tensile strength (826 MPa) and Young's modulus (65.7 GPa) owing to the large length and the alignment of nanofibers along fiber axis. When normalized by weight, the specific tensile strength of the macrofiber is as high as 598 MPa g-1 cm3 , which is even substantially stronger than the novel lightweight steel (227 MPa g-1 cm3 ).
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Affiliation(s)
- Sha Wang
- Department of Materials Science and Engineering, University of Maryland College Park, College Park, MD, 20742, USA
| | - Feng Jiang
- Department of Materials Science and Engineering, University of Maryland College Park, College Park, MD, 20742, USA
| | - Xu Xu
- Department of Materials Science and Engineering, University of Maryland College Park, College Park, MD, 20742, USA
| | - Yudi Kuang
- Department of Materials Science and Engineering, University of Maryland College Park, College Park, MD, 20742, USA
| | - Kun Fu
- Department of Materials Science and Engineering, University of Maryland College Park, College Park, MD, 20742, USA
| | - Emily Hitz
- Department of Materials Science and Engineering, University of Maryland College Park, College Park, MD, 20742, USA
| | - Liangbing Hu
- Department of Materials Science and Engineering, University of Maryland College Park, College Park, MD, 20742, USA
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199
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Yue ML, Jiang YF, Zhang L, Yu CY, Zou KY, Li ZX. Solvent-Induced Cadmium(II) Metal-Organic Frameworks with Adjustable Guest-Evacuated Porosity: Application in the Controllable Assembly of MOF-Derived Porous Carbon Materials for Supercapacitors. Chemistry 2017; 23:15680-15693. [PMID: 28782857 DOI: 10.1002/chem.201702694] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Indexed: 01/01/2023]
Abstract
In this work, five new cadmium metal-organic frameworks (Cd-MOFs 1-5) have been synthesized from solvothermal reactions of Cd(NO3 )2 ⋅4 H2 O with isophthalic acid and 1,4-bis(imidazol-1-yl)-benzene under different solvent systems of CH3 OH, C2 H5 OH, (CH3 )2 CHOH, DMF, and N-methyl-2-pyrrolidone (NMP), respectively. Cd-MOF 1 shows a 3D diamondoid framework with 1D rhombic and hexagonal channels, and the porosity is 12.9 %. Cd-MOF 2 exhibits a 2D (4,4) layer with a 1D parallelogram channel and porosity of 23.6 %. Cd-MOF 3 has an 8-connected dense network with the Schäfli symbol of [424 ⋅64 ] based on the Cd6 cluster. Cd-MOFs 4-5 are isomorphous, and display an absolutely double-bridging 2D (4,4) layer with 1D tetragonal channels and porosities of 29.2 and 28.2 %, which are occupied by DMF and NMP molecules, respectively. Followed by the calcination-thermolysis procedure, Cd-MOFs 1-5 are employed as precursors to prepare MOF-derived porous carbon materials (labeled as PC-me, PC-eth, PC-ipr, PC-dmf and PC-nmp), which have the BET specific surface area of 23, 51, 10, 122, and 96 m2 g-1 , respectively. The results demonstrate that the specific surface area of PCs is tuned by the porosity of Cd-MOFs, where the later is highly dependent on the solvent. Thereby, the specific surface area of PCs could be adjusted by the solvent used in the synthese of MOF precusors. Significantly, PCs have been further activated by KOH to obtain activated carbon materials (APCs), which possess even higher specific surface area and larger porosity. After a series of characterization and electrochemical investigations, the APC-dmf electrode exhibits the best porous properties and largest specific capacitances (153 F g-1 at 5 mV s-1 and 156 F g-1 at 0.5 Ag-1 ). Meanwhile, the APC-dmf electrode shows excellent cycling stability (ca. 84.2 % after 5000 cycles at 1 Ag-1 ), which can be applied as a suitable electrode material for supercapacitors.
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Affiliation(s)
- Man-Li Yue
- College of Chemistry and Material Sciences, Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education), Shaanxi Key Laboratory of Physico-Inorganic Chemistry, Northwest University, Xi'an, 710069, P. R. China
| | - Yi-Fan Jiang
- College of Chemistry and Material Sciences, Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education), Shaanxi Key Laboratory of Physico-Inorganic Chemistry, Northwest University, Xi'an, 710069, P. R. China
| | - Lin Zhang
- College of Chemistry and Material Sciences, Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education), Shaanxi Key Laboratory of Physico-Inorganic Chemistry, Northwest University, Xi'an, 710069, P. R. China
| | - Cheng-Yan Yu
- College of Chemistry and Material Sciences, Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education), Shaanxi Key Laboratory of Physico-Inorganic Chemistry, Northwest University, Xi'an, 710069, P. R. China
| | - Kang-Yu Zou
- College of Chemistry and Material Sciences, Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education), Shaanxi Key Laboratory of Physico-Inorganic Chemistry, Northwest University, Xi'an, 710069, P. R. China
| | - Zuo-Xi Li
- College of Chemistry and Material Sciences, Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education), Shaanxi Key Laboratory of Physico-Inorganic Chemistry, Northwest University, Xi'an, 710069, P. R. China
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Wang C, Tian H, Jiang J, Zhou T, Zeng Q, He X, Huang P, Yao Y. Facile Synthesis of Different Morphologies of Cu 2SnS 3 for High-Performance Supercapacitors. ACS APPLIED MATERIALS & INTERFACES 2017; 9:26038-26044. [PMID: 28737372 DOI: 10.1021/acsami.7b07190] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Cu2SnS3 is considered as an emerging potential candidate for electrode materials due to considerable interlayer spaces and tunnels in its crystal structures and excellent conducting ability. Ternary Cu2SnS3 as anode in lithium ion batteries has already been reported, but it is rarely mentioned to be applied in supercapacitors which is considered to be a complementary energy storage device for lithium ion batteries. It is an effective method to improve the electrochemical performance of materials by adjusting the morphology and microstructure of materials. In present study, ternary nanosheet-assembled Cu2SnS3 microspheres (M-CTS) and nanoparticles-like Cu2SnS3 (N-CTS) are synthesized via a facile solvothermal route. The results suggest that Cu2SnS3 microspheres (M-CTS) exhibit better capacitive performance compared with Cu2SnS3 (N-CTS) nanoparticles, which means that morphology does have a significant effect on the electrochemical reaction. M-CTS presents excellent supercapacitor performances with the high specific capacity of about 406 C g-1 at a current density of 1 A g-1 and achieves a high energy density of 85.6 W h kg-1 and power density of 720 W kg-1. The remarkable electrochemical performance of Cu2SnS3 can be attributed to the large specific surface area, smaller average pore size, and improved electrical conductivity. Our research indicates that it is very suitable for large-scale production and has enormous potential in the practical application of high-performance supercapacitors.
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Affiliation(s)
- Chao Wang
- Clean Energy Materials and Engineering Center, School of Microelectronics and Solid-State Electronics, State Key Laboratory of Electronic Thin Film and Integrated Device, University of Electronic Science and Technology of China , Chengdu Sichuan, China
| | - Hanqing Tian
- Clean Energy Materials and Engineering Center, School of Microelectronics and Solid-State Electronics, State Key Laboratory of Electronic Thin Film and Integrated Device, University of Electronic Science and Technology of China , Chengdu Sichuan, China
| | - Jing Jiang
- Clean Energy Materials and Engineering Center, School of Microelectronics and Solid-State Electronics, State Key Laboratory of Electronic Thin Film and Integrated Device, University of Electronic Science and Technology of China , Chengdu Sichuan, China
| | - Ting Zhou
- Clean Energy Materials and Engineering Center, School of Microelectronics and Solid-State Electronics, State Key Laboratory of Electronic Thin Film and Integrated Device, University of Electronic Science and Technology of China , Chengdu Sichuan, China
| | - Qing Zeng
- Clean Energy Materials and Engineering Center, School of Microelectronics and Solid-State Electronics, State Key Laboratory of Electronic Thin Film and Integrated Device, University of Electronic Science and Technology of China , Chengdu Sichuan, China
| | - XinRui He
- Clean Energy Materials and Engineering Center, School of Microelectronics and Solid-State Electronics, State Key Laboratory of Electronic Thin Film and Integrated Device, University of Electronic Science and Technology of China , Chengdu Sichuan, China
| | - Pei Huang
- Clean Energy Materials and Engineering Center, School of Microelectronics and Solid-State Electronics, State Key Laboratory of Electronic Thin Film and Integrated Device, University of Electronic Science and Technology of China , Chengdu Sichuan, China
| | - Yan Yao
- Department of Electrical & Computer Engineering and Materials Science and Engineering Program, University of Houston , Houston, Texas 77204, United States
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