401
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Li P, Shi W, Liu W, Chen Y, Xu X, Ye S, Yin R, Zhang L, Xu L, Cao X. Fabrication of high-performance MXene-based all-solid-state flexible microsupercapacitor based on a facile scratch method. NANOTECHNOLOGY 2018; 29:445401. [PMID: 30113908 DOI: 10.1088/1361-6528/aadad4] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
MXenes have emerged as promising electrode materials for microsupercapacitors (MSCs) owing to their high volumetric and areal capacitances. In addition to the development of novel electrode materials, fabrication of interdigital electrodes is another key to realize high-performance MSCs. Herein, we demonstrate the patterning of few-layered Ti3C2T x nanosheets on various substrates for MSCs by a facile, fast, and nearly zero-cost 'scratch' strategy. The fabricated Ti3C2T x -based all-solid-state MSC achieves a high areal capacitance of 25.5 mF cm-2, which benefits from the unique layered structure and high electrical conductivity of the electrode. The fabricated planar MSC also delivers good cycling stability and excellent flexibility. Moreover, our fabrication strategy can be readily extended to other composite films for MSCs and become potential micropower sources for miniaturized electronic devices.
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Affiliation(s)
- Peng Li
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
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402
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Feng J, Dou M, Zhang Z, Wang F. Template-Free Synthesis of Two-Dimensional Fe/N Codoped Carbon Networks as Efficient Oxygen Reduction Reaction Electrocatalysts. ACS APPLIED MATERIALS & INTERFACES 2018; 10:37079-37086. [PMID: 30285409 DOI: 10.1021/acsami.8b13445] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A direct pyrolysis and template-free synthesis strategy is demonstrated to synthesize the two-dimensional (2-D) Fe/N codoped carbon networks by virtue of 2-D graphitic-carbon nitride (g-C3N4) intermediates derived from melamine. Because of the stabilization and steric hindrance of additional N ligands with bisnitrogen-containing groups (phenanthroline, phthalonitrile, and phenylenediamine), the thin graphitic-layered Fe/N codoped carbon materials have successfully inherited the 2-D morphology from the g-C3N4 intermediate after direct carbonization treatment. After the easy removal of inactive Fe particles, the resultant sample exhibits numerous well-dispersed Fe atoms embedded in the carbon layers with a hierarchical (meso- and micro-) porous structure. Owing to the high active site density and open porous structure, the thin graphitic-layered Fe/N codoped carbon electrocatalysts exhibit superior oxygen reduction reaction performance (a half-wave potential of 0.88 V and a kinetics current density of 3.8 mA cm-2), even better than the commercial Pt/C catalysts (0.85 V and 1.6 mA cm-2, respectively). The facile and effective synthesis strategy without template to build the graphene-like nanoarchitectures inherited from the 2-D intermediates will lead to a great development of 2-D carbon materials in various electrochemical applications.
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403
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Huang L, Lin H. Engineering Sub-Nanometer Channels in Two-Dimensional Materials for Membrane Gas Separation. MEMBRANES 2018; 8:membranes8040100. [PMID: 30380632 PMCID: PMC6316686 DOI: 10.3390/membranes8040100] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 10/16/2018] [Accepted: 10/24/2018] [Indexed: 11/16/2022]
Abstract
Sub-nanochannels constructed by stacking two-dimensional (2D) nanosheets in parallel provide a unique molecular separation pathway with excellent size-sieving ability for membrane gas separation. Herein we review the progress in engineering these 2D channels for efficient gas separation including graphene, graphene oxide (GO), molybdenum disulfide (MoS2), and MXene. Mixed matrix materials containing these 2D materials in polymers are also reviewed and compared with conventional polymers for gas separation.
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Affiliation(s)
- Liang Huang
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA.
| | - Haiqing Lin
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA.
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404
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Liu L, Sun G. Laminar GO Membrane with Imdazolium Polymer Brush for High Hydroxide Conduction. CHEM LETT 2018. [DOI: 10.1246/cl.180557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Lei Liu
- School of Materials and Chemical Engineering, Zhongyuan University of Technology, Zhengzhou 450007, P. R. China
| | - Guoping Sun
- School of Materials and Chemical Engineering, Zhongyuan University of Technology, Zhengzhou 450007, P. R. China
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405
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Schleberger M, Kotakoski J. 2D Material Science: Defect Engineering by Particle Irradiation. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E1885. [PMID: 30279366 PMCID: PMC6212862 DOI: 10.3390/ma11101885] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 08/02/2018] [Accepted: 08/09/2018] [Indexed: 12/12/2022]
Abstract
Two-dimensional (2D) materials are at the heart of many novel devices due to their unique and often superior properties. For simplicity, 2D materials are often assumed to exist in their text-book form, i.e., as an ideal solid with no imperfections. However, defects are ubiquitous in macroscopic samples and play an important ⁻ if not imperative ⁻ role for the performance of any device. Thus, many independent studies have targeted the artificial introduction of defects into 2D materials by particle irradiation. In our view it would be beneficial to develop general defect engineering strategies for 2D materials based on a thorough understanding of the defect creation mechanisms, which may significantly vary from the ones relevant for 3D materials. This paper reviews the state-of-the-art in defect engineering of 2D materials by electron and ion irradiation with a clear focus on defect creation on the atomic scale and by individual impacts. Whenever possible we compile reported experimental data alongside corresponding theoretical studies. We show that, on the one hand, defect engineering by particle irradiation covers a wide range of defect types that can be fabricated with great precision in the most commonly investigated 2D materials. On the other hand, gaining a complete understanding still remains a challenge, that can be met by combining advanced theoretical methods and improved experimental set-ups, both of which only now begin to emerge. In conjunction with novel 2D materials, this challenge promises attractive future opportunities for researchers in this field.
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Affiliation(s)
- Marika Schleberger
- Fakultät für Physik and Cenide, Universität Duisburg-Essen, Lotharstraße 1, 47057 Duisburg, Germany.
| | - Jani Kotakoski
- Fakultät für Physik, Universität Wien, Boltzmanngasse 5, 1090 Wien, Austria.
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406
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Zhou S, Wei Y, Li L, Duan Y, Hou Q, Zhang L, Ding LX, Xue J, Wang H, Caro J. Paralyzed membrane: Current-driven synthesis of a metal-organic framework with sharpened propene/propane separation. SCIENCE ADVANCES 2018; 4:eaau1393. [PMID: 30410983 PMCID: PMC6218190 DOI: 10.1126/sciadv.aau1393] [Citation(s) in RCA: 142] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 09/17/2018] [Indexed: 05/22/2023]
Abstract
Metal-organic framework (MOF) membranes show great promise for propene/propane separation, yet a sharp molecular sieving has not been achieved due to their inherent linker mobility. Here, zeolitic imidazolate framework ZIF-8-type membranes with suppressed linker mobility are prepared by a fast current-driven synthesis (FCDS) strategy within 20 min, showing sharpened molecular sieving for propene/propane separation with a separation factor above 300. During membrane synthesis, the direct current promotes the metal ions and ligands to assemble into inborn-distorted and stiffer frameworks with ZIF-8_Cm (a newly discovered polymorph of ZIF-8) accounting for 60 to 70% of the membrane composition. Molecular dynamics simulations further verify that ZIF-8_Cm is superior to ZIF-8_I 4 ¯ 3 m (the common cubic phase) for propene/propane separation. FCDS holds great potential to produce high-quality, ultrathin MOF membranes on a large scale.
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Affiliation(s)
- Sheng Zhou
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Yanying Wei
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Libo Li
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Yifan Duan
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Qianqian Hou
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Lili Zhang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Liang-Xin Ding
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Jian Xue
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Haihui Wang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
- Corresponding author.
| | - Jürgen Caro
- Institute of Physical Chemistry and Electrochemistry, Leibniz University Hannover, Callinstraße 3A, 30167 Hannover, Germany
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407
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Fan Z, Wang Y, Xie Z, Wang D, Yuan Y, Kang H, Su B, Cheng Z, Liu Y. Modified MXene/Holey Graphene Films for Advanced Supercapacitor Electrodes with Superior Energy Storage. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1800750. [PMID: 30356956 PMCID: PMC6193160 DOI: 10.1002/advs.201800750] [Citation(s) in RCA: 114] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 07/15/2018] [Indexed: 05/19/2023]
Abstract
MXene films are attractive for advanced supercapacitor electrodes requiring high volumetric energy density due to their high redox capacitance combined with extremely high packing density. However, the self-restacking of MXene flakes unavoidably decreases the volumetric performance, mass loading, and rate capability. Herein, a simple strategy is developed to prepare a flexible and free-standing modified MXene/holey graphene film by filtration of the alkalized MXene and holey graphene oxide dispersions, followed by a mild annealing treatment. After terminal groups (-F/-OH) are removed, the increased proportion of Ti atoms enables more pseudocapacitive reaction. Meanwhile, the embedded holey graphene effectively prevents the self-restacking of MXene and forms a high nanopore connectivity network, which is able to immensely accelerate the ion transport and shorten transport pathways for both ion and electron. When applied as electrode materials for supercapacitors, it can deliver an ultrahigh volumetric capacitance (1445 F cm-3) at 2 mV s-1, excellent rate capability, and high mass loading. In addition, the assembled symmetric supercapacitor demonstrates a fantastic volumetric energy density (38.6 Wh L-1), which is the highest value reported for MXene-based electrodes in aqueous electrolytes. This work opens a new avenue for the further exploration of MXene materials in energy storage devices.
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Affiliation(s)
- Zhimin Fan
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and StorageSchool of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin150001P. R. China
| | - Youshan Wang
- National Key Laboratory of Science and Technology on Advanced Composites in Special EnvironmentsHarbin Institute of TechnologyHarbin150080P. R. China
| | - Zhimin Xie
- National Key Laboratory of Science and Technology on Advanced Composites in Special EnvironmentsHarbin Institute of TechnologyHarbin150080P. R. China
| | - Duola Wang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and StorageSchool of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin150001P. R. China
| | - Yin Yuan
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and StorageSchool of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin150001P. R. China
| | - Hongjun Kang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and StorageSchool of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin150001P. R. China
| | - Benlong Su
- Center for Rubber Composite Materials and StructuresHarbin Institute of Technology at WeihaiWeihai264209P. R. China
| | - Zhongjun Cheng
- Natural Science Research CenterAcademy of Fundamental and Interdisciplinary SciencesHarbin Institute of TechnologyHarbin150080P. R. China
| | - Yuyan Liu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and StorageSchool of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin150001P. R. China
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408
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Scorrano G, Bruno G, Trani ND, Ferrari M, Pimpinelli A, Grattoni A. Gas Flow at the Ultra-nanoscale: Universal Predictive Model and Validation in Nanochannels of Ångstrom-Level Resolution. ACS APPLIED MATERIALS & INTERFACES 2018; 10:32233-32238. [PMID: 30185043 PMCID: PMC6836450 DOI: 10.1021/acsami.8b11455] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Gas transport across nanoscale pores is determinant in molecular exchange in living organisms as well as in a broad spectrum of technologies. Here, we report an unprecedented theoretical and experimental analysis of gas transport in a consistent set of confining nanochannels ranging in size from the ultra-nanoscale to the sub-microscale. A generally applicable theoretical approach quantitatively predicting confined gas flow in the Knudsen and transition regime was developed. Unlike current theories, specifically designed for very simple channel geometries, our approach can be applied to virtually all geometries, for which the probability distribution of path lengths for particle-interface collisions can be computed, either analytically or by numerical simulations. To generate a much needed benchmark experimental model, we manufactured extremely reproducible membranes with two-dimensional nanochannels. Channel sizes ranged from 2.5 to 250 nm, and angstrom level of size control and interface tolerances were achieved using leading-edge nanofabrication techniques. We then measured gas flow in the Knudsen number range from 0.2 to 20. Excellent agreement between theoretical predictions and experimental data was found, demonstrating the validity and potential of our approach.
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Affiliation(s)
- Giovanni Scorrano
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, Texas,77030, USA
- Department of Material Science and Nanoengineering, Rice University, Houston, Texas, 77005, USA
| | - Giacomo Bruno
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, Texas,77030, USA
| | - Nicola Di Trani
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, Texas,77030, USA
| | - Mauro Ferrari
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, Texas,77030, USA
| | - Alberto Pimpinelli
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, Texas,77030, USA
- Smalley-Curl Institute, Rice University, Houston, Texas, 77005, USA
| | - Alessandro Grattoni
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, Texas,77030, USA
- Department of Surgery, Houston Methodist Hospital, Houston, Texas, 77030, USA
- Department of Radiation Oncology, Houston Methodist Hospital, Houston, Texas, 77030, USA
- corresponding author:
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409
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Asghar H, Ilyas A, Tahir Z, Li X, Khan AL. Fluorinated and sulfonated poly (ether ether ketone) and Matrimid blend membranes for CO 2 separation. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2018.04.047] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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410
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Chang TH, Zhang T, Yang H, Li K, Tian Y, Lee JY, Chen PY. Controlled Crumpling of Two-Dimensional Titanium Carbide (MXene) for Highly Stretchable, Bendable, Efficient Supercapacitors. ACS NANO 2018; 12:8048-8059. [PMID: 30067908 DOI: 10.1021/acsnano.8b02908] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Two-dimensional MXene materials have demonstrated attractive electrical and electrochemical properties in energy storage applications. Adding stretchability to MXene remains challenging due to its high mechanical stiffness and weak intersheet interaction, so the assembling techniques for mechanically stable MXene architectures require further development. We report a simple fabrication by harnessing the interfacial instability to generate higher dimensional MXene nanocoatings capable of programmed crumpling/unfolding. A sequential patterning approach enabled the design of sequence-dependent MXene textures across multiple length scales, which were utilized for controllable wetting surfaces and high-areal-capacitance electrodes. We next transferred the crumpled MXene nanocoating onto an elastomer to fabricate an MXene/elastomer electrode with high stretchability. The accordion-like MXene can be reversibly folded/unfolded and still preserve efficient specific capacitances. We further fabricated asymmetric MXene supercapacitors, and the devices demonstrated efficient electrochemical performance and large deformability (180° bendability, 100% stretchability). Our texturing techniques can be applied to large MXene families for designing stretchable architectures in wearable electronics.
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Affiliation(s)
- Ting-Hsiang Chang
- Department of Chemical and Biomolecular Engineering , National University of Singapore , Singapore 117585 , Singapore
| | - Tianran Zhang
- Department of Chemical and Biomolecular Engineering , National University of Singapore , Singapore 117585 , Singapore
| | - Haitao Yang
- Department of Chemical and Biomolecular Engineering , National University of Singapore , Singapore 117585 , Singapore
| | - Kerui Li
- Department of Chemical and Biomolecular Engineering , National University of Singapore , Singapore 117585 , Singapore
| | - Yuan Tian
- Department of Chemical and Biomolecular Engineering , National University of Singapore , Singapore 117585 , Singapore
| | - Jim Yang Lee
- Department of Chemical and Biomolecular Engineering , National University of Singapore , Singapore 117585 , Singapore
| | - Po-Yen Chen
- Department of Chemical and Biomolecular Engineering , National University of Singapore , Singapore 117585 , Singapore
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411
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Wang S, Tian Z, Dai S, Jiang DE. Effect of pore density on gas permeation through nanoporous graphene membranes. NANOSCALE 2018; 10:14660-14666. [PMID: 30033462 DOI: 10.1039/c8nr02625d] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Pore density is an important factor dictating gas separations through one-atom-thin nanoporous membranes, but how it influences the gas permeation is not fully understood. Here we use molecular dynamics (MD) simulations to investigate gas permeation through nanoporous graphene membranes with the same pore size (3.0 Å × 3.8 Å in dimensions) but varying pore densities (from 0.01 to 1.28 nm-2). We find that higher pore density leads to higher permeation per unit area of membrane for both CO2 and He, but the rate of the increase decreases greatly for CO2 at high pore densities. As a result, the per-pore permeance decreases for CO2 but remains relatively constant for He with the pore density, leading to a dramatic change in CO2/He selectivity. By separating the total flux into direct flux and surface flux, we find that He permeation is dominated by direct flux and hence the per-pore permeation rate is roughly constant with the pore density. In contrast, CO2 permeation is dominated by surface flux and the overall decreasing trend of the per-pore permeation rate of CO2 with the pore density can be explained by the decreasing per-pore coverage of CO2 on the feed side with the pore density. Our work now provides a complete picture of the pore-density dependence of gas permeation through one-atom-thin nanoporous membranes.
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Affiliation(s)
- Song Wang
- Department of Chemistry, University of California, Riverside, California 92521, USA.
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412
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Li Y, Zhang M, Chu Y, Tan X, Gao J, Wang S, Liu S. Design of metallic nickel hollow fiber membrane modules for pure hydrogen separation. AIChE J 2018. [DOI: 10.1002/aic.16332] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yuan Li
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, Dept. of Chemical Engineering; Tianjin Polytechnic University; Tianjin 300387 China
| | - Mingzhi Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, Dept. of Chemical Engineering; Tianjin Polytechnic University; Tianjin 300387 China
| | - Yuanyuan Chu
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, Dept. of Chemical Engineering; Tianjin Polytechnic University; Tianjin 300387 China
| | - Xiaoyao Tan
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, Dept. of Chemical Engineering; Tianjin Polytechnic University; Tianjin 300387 China
| | - Jun Gao
- College of Chemical and Environmental Engineering; Shandong University of Science and Technology; Qingdao 266590 China
| | - Shaobin Wang
- Dept. of Chemical Engineering; Curtin University; Perth WA 6102 Australia
| | - Shaomin Liu
- Dept. of Chemical Engineering; Curtin University; Perth WA 6102 Australia
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413
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Abstract
Abstract
Two-dimensional (2D) materials have been widely investigated for the last few years, introducing nanosheets and ultrathin films. The often superior electrical, optical and mechanical properties in contrast to their three-dimensional (3D) bulk counterparts offer a promising field of opportunities. Especially new research fields for already existing and novel applications are opened by downsizing and improving the materials at the same time. Some of the most promising application fields are namely supercapacitors, electrochromic devices, (bio-) chemical sensors, photovoltaic devices, thermoelectrics, (photo-) catalysts and membranes. The role of oxides in this field of materials deserves a closer look due to their availability, durability and further advantages. Here, recent progress in oxidic nanosheets is highlighted and the benefit of 2D oxides for applications discussed in-depth. Therefore, different synthesis techniques and microstructures are compared more closely.
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Affiliation(s)
- Richard Hinterding
- Leibniz University Hannover , Institute of Physical Chemistry and Electrochemistry , Callinstraße 3A , D-30176 Hannover , Germany
| | - Armin Feldhoff
- Leibniz University Hannover , Institute of Physical Chemistry and Electrochemistry , Callinstraße 3A , D-30176 Hannover , Germany
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414
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Wang J, Chen P, Shi B, Guo W, Jaroniec M, Qiao SZ. A Regularly Channeled Lamellar Membrane for Unparalleled Water and Organics Permeation. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201801094] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jingtao Wang
- School of Chemical Engineering and Energy; Zhengzhou University; Zhengzhou 450001 China
- School of Chemical Engineering; University of Adelaide; Adelaide SA 5005 Australia
| | - Pingping Chen
- School of Chemical Engineering and Energy; Zhengzhou University; Zhengzhou 450001 China
| | - Benbing Shi
- School of Chemical Engineering and Energy; Zhengzhou University; Zhengzhou 450001 China
| | - Weiwei Guo
- Research Center for Analytical Sciences; College of Chemistry; Nankai University; Tianjin 300071 China
| | - Mietek Jaroniec
- Department of Chemistry and Biochemistry; Kent State University; Kent OH 44242 USA
| | - Shi-Zhang Qiao
- School of Chemical Engineering; University of Adelaide; Adelaide SA 5005 Australia
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415
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Wang J, Chen P, Shi B, Guo W, Jaroniec M, Qiao SZ. A Regularly Channeled Lamellar Membrane for Unparalleled Water and Organics Permeation. Angew Chem Int Ed Engl 2018; 57:6814-6818. [DOI: 10.1002/anie.201801094] [Citation(s) in RCA: 132] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 02/18/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Jingtao Wang
- School of Chemical Engineering and Energy; Zhengzhou University; Zhengzhou 450001 China
- School of Chemical Engineering; University of Adelaide; Adelaide SA 5005 Australia
| | - Pingping Chen
- School of Chemical Engineering and Energy; Zhengzhou University; Zhengzhou 450001 China
| | - Benbing Shi
- School of Chemical Engineering and Energy; Zhengzhou University; Zhengzhou 450001 China
| | - Weiwei Guo
- Research Center for Analytical Sciences; College of Chemistry; Nankai University; Tianjin 300071 China
| | - Mietek Jaroniec
- Department of Chemistry and Biochemistry; Kent State University; Kent OH 44242 USA
| | - Shi-Zhang Qiao
- School of Chemical Engineering; University of Adelaide; Adelaide SA 5005 Australia
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416
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Yan J, Ma Y, Zhang C, Li X, Liu W, Yao X, Yao S, Luo S. Polypyrrole–MXene coated textile-based flexible energy storage device. RSC Adv 2018; 8:39742-39748. [PMID: 35558018 PMCID: PMC9091313 DOI: 10.1039/c8ra08403c] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 11/19/2018] [Indexed: 11/21/2022] Open
Abstract
Recently, more and more researchers have devoted their efforts to developing flexible electrochemical energy storage devices to meet the development of portable and wearable electronics. Among them, supercapacitors (SCs) have been widely studied due to their high specific capacitance and power density. However, most flexible SCs often use traditional carbon materials and transition metal oxides as electrode materials. In this paper, we used an easy and low-cost way to fabricate a flexible supercapacitor based on a new type of two-dimensional material, transition metal carbides, nitrides, or carbonitrides (MXenes). By taking full advantage of the hydrophilicity and metal conductivity of MXene nanosheets, an extremely simple “dipping and drying” method was used to achieve conductive textile electrodes with a specific capacitance of 182.70 F g−1, which is higher than reported for carbon nanotubes (CNTs) and active carbon. To further improve the capacitive performance of the MXene-based electrode and avoid the poor oxygen oxidation of MXene, polypyrrole (PPy) was electrochemically deposited on the surface of MXene textiles, thus producing a PPy–MXene coated textile electrode with a specific capacitance of 343.20 F g−1. In addition, a symmetrical solid-state supercapacitor based on MXene–PPy textiles was assembled, which achieved an energy density of 1.30 mW h g−1 (power density = 41.1 mW g−1). This work introduces a new type of MXene-based textile SC, which provides a promising candidate for flexible and wearable energy storage devices. A kind of smart and flexible SCs based on MXene-based textile have been fabricated by a “dipping and drying” method.![]()
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Affiliation(s)
- Jinfeng Yan
- School of Sciences
- Hubei University of Automotive Technology
- Shiyan 442002
- P. R. China
| | - Yanan Ma
- School of Sciences
- Hubei University of Automotive Technology
- Shiyan 442002
- P. R. China
| | - Chuankun Zhang
- School of Sciences
- Hubei University of Automotive Technology
- Shiyan 442002
- P. R. China
| | - Xingxing Li
- School of Sciences
- Hubei University of Automotive Technology
- Shiyan 442002
- P. R. China
| | - Weizhi Liu
- School of Sciences
- Hubei University of Automotive Technology
- Shiyan 442002
- P. R. China
| | - Xinyu Yao
- School of Sciences
- Hubei University of Automotive Technology
- Shiyan 442002
- P. R. China
| | - Shuai Yao
- School of Sciences
- Hubei University of Automotive Technology
- Shiyan 442002
- P. R. China
| | - Shijun Luo
- School of Sciences
- Hubei University of Automotive Technology
- Shiyan 442002
- P. R. China
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